Posts Tagged ‘OMVC’
To the Federal Communications Commission: STOP! Enough, already!
- Published on Tuesday, 26 July 2011 12:09
- Pete Putman
- 0 Comments
I don’t normally get worked up by much that comes of out Washington, DC these days – it’s apparent that politicians have no limit to the levels they can sink to.
But the Federal Communications Commission’s ongoing effort to reclaim broadcast TV spectrum in an attempt to ‘solve’ a so-called ‘wireless broadband crisis’ has reached absurd levels. And it is time to call them out on it.
Let me first set the table by stating that, a long, long time ago in a country far, far away, the FCC was actually a respected organization that had some actual engineering expertise. The FCC was created in 1934 to replace the Federal Radio Commission. As part of the 1934 Act that birthed the FCC, it was charged with “..regulating the airwaves in the public interest.” Not in the interests of big corporations like Verizon, AT&T, Qualcomm, or Google. In OUR interests.
The interpretation back then was that the radio spectrum (television hadn’t made its debut yet) belonged to the citizens of the United States. And the FCC would regulate how it was used to the benefit of all.
As new communication modes came into existence, the FCC was there to test-drive them and ultimately approve them for everyday use. FM broadcasting, television, Doppler radar, satellites, cellular phones – all became an integral part of our lives after thorough vetting by the FCC’s engineering staff, many of whom (like me) also held amateur radio licenses and could ‘walk the talk’ then it came to the latest technical terminology.
The FCC also regulated ‘common carriers,’ i.e. telephone companies. They approved tariffs and made sure rural areas had access to service. When television took off in the 1950s, the FCC had the foresight to add more channels in the UHF spectrum, and when TV manufacturers were reluctant to add tuners to their TV sets to enable viewing of those channels, the FCC simply made them do it with the All Channel Receiver Act of 1962. Otherwise, the nascent UHF television broadcast service would have died a premature death.
I got my first amateur radio license in 1970 after playing around with pirate AM and FM stations in high school. Back then, you didn’t mess with the FCC, and the appearance of one of their dreaded unmarked gray vans in your neighborhood meant they were on to your illegal radio station – so you pulled the plug, and fast.
In short, the FCC was the perfect umpire for our nation’s spectrum. They knew the technology inside and out, they tried to balance the needs of big corporations with the little guys, and they made sure everyone responsible for a single radio emission knew what the hell they were doing, and were held accountable for it.
Today? The FCC is a joke. I never thought I’d say that, but they have become a laughing stock. They are purely a political organization that is rapidly losing its best engineering talent, and exists merely to identify more spectrum that can be auctioned off to private interests so that Congress can continue to fill its insatiable appetite for money. (It turns out, we do have the best politicians money can buy, as Mark Twain once pointed out.)
Need proof of how low the FCC has sunk? How about the two rounds of ‘white space devices’ testing that the Office of Engineering Technology undertook a few years ago? (White space devices are low-power gadgets for wireless connectivity of media players, TVs, and other goodies in the home, and are intended to work in the UHF TV band.)
All of the devices failed both rounds of tests. Many did not detect strong active digital TV broadcasts on the same frequency! Some took an eternity to scan for active channels.
In short, these devices clearly weren’t ready for prime time. The old FCC would have sent their manufacturers packing in a hurry.
But the ‘new’ FCC? Why, they approved the concept,saying in effect, “Even though none of these gadgets ever worked correctly, you all seem to be nice people and pretty smart, so we’ll assume you can fix the problems.” This, after virtually every manufacturer of wireless microphones, lobbyists for theme parks, Broadway show producers, TV networks, the NAB, church groups, and professional AV associations lined up against white space devices.
So now, just two years after the completion of a difficult transition from analog to digital television – one that has brought us better picture quality (well, in most cases) and free HDTV to communities all over the country, and one that gave up channels 52 through 69 to public safety agencies and private interests, like Qualcomm’s failed FLO service – the FCC wants to take away another 120 MHz (20 channels) of UHF TV spectrum for its manufactured wireless broadband crisis.
To do that, over 600 TV stations currently operating in the UHF TV band will have to relocate. Unlike the analog to digital TV transition, there will be no opportunity to ‘simulcast’ on a new channel while winding down operations on the channel to be given up. These stations will simply have to shut down, install new transmitters and antennas, run coverage tests, and only then light up again.
In a classic case of Orwellian language, the FCC is saying that broadcasters will be invited to participate in a ‘voluntary’ spectrum auction and decide if they want to give up their UHF channel in return for financial considerations. (Look how far we’ve come from the Federal Communications Act of 1934: The FCC is now offering bribes to get broadcasters to move, or shut down!)
Anyone who has ever dealt with the government knows that the term ‘voluntary’ is meaningless. If the FCC doesn’t get enough broadcasters to move, then they’ll simply change the rules to get those channels one way or another. It’s a sham.
How will this affect free, over-the-air TV viewers? Well, if you live in Syracuse NY, ALL of your digital TV channels are UHF. Ditto for all but channel 7 in Boston and San Francisco , Huntsville AL, most channels in Denver, Portland ME, most channels in New Orleans, all but one channel in Salt Lake City – well, you get the idea.
The question no one is asking is this: Why not look somewhere else for new broadband spectrum? What about the old analog cellular phone band around 800 MHz? What about the hundreds of MHz the government has allocated to itself on a primary basis for whatever purpose?
You see, the UHF television band used to go all the way to channel 83. But it’s been whittled down several times since the 1950s, and in fact broadcasters have already given back 192 MHz of spectrum for other services in the past 40 years. In my eyes, they’ve done their part already, several times over.
The UHF TV band is better suited for digital TV for a number of reasons. It penetrates into buildings better than high-band VHF channels 7 to 13 (forget trying that with low-band VHF channels 2 through 6). It is easier to design compact, high-gain antennas for UHF digital TV reception. And antennas for the new portable MH digital TV receivers are quite small – only 5 inches is needed for a quarter-wave antenna @ 600 MHz, right around channel 35.
Did you know that ALL TV broadcasting moved to UHF channels in Great Britain in the 1970s after the move to color TV? UHF TV channels were deemed to be much more suitable for the regional broadcasting services. Made plenty of sense then, and makes plenty of sense now.
But there’s no use explaining any of this to the FCC, particularly its chairman, Julius Genachowski. To me, he is the consummate political animal and bureaucrat. He is bound and determined to go after TV broadcasters once again and chop off another limb to satisfy his friends at CTIA and the big telecoms. And you will suffer for it.
One of the few really good deals left to recession-weary Americans these days – who are being nickel-and-dimed to death with monthly service fees for cable, satellite, broadband, and mobile phones – is free, over-the-air digital TV and HDTV. Many of you who have ‘cut the cord’ or are contemplating doing so, relying on a mix of OTA TV programs and Internet video, are going to get screwed if this so-called ‘voluntary’ spectrum auction and re-allocation goes through.
Apparently the FCC doesn’t care about saving Americans money, or supporting a diverse, 1700 station-strong free digital TV ecosystem that provides local news, weather, entertainment, sports – again, much of this in HDTV – without costing a dime. Nope, we desperately need more channels to fix our wireless broadband crisis!
Did you know that, in a candid moment last year, the head of Verizon said they weren’t using all of their channel capacity for wireless mobile phone and data service?
Did you know that the UHF TV spectrum is not the best choice for a wireless broadband service? (No, let’s instead move UPWARDS in frequency a few hundred megahertz.)
So, what are you going to to about it? Do you live in a TV market with mostly or all UHF channels? Do you enjoy watching free HDTV programs? Do you realize the disruption this FCC action will cause?
Then get on the phone, or email or write to your congressional representatives in the House and Senate and tell them to put a short leash on the FCC. Tell them to have a full spectrum inventory conducted and made available for public inspection.
Ask them why they would allow the FCC to take away one of the few good deals left to Americans during this time of economic stress, a TV service that more than 15% of the population relies on exclusively (over 30% among Hispanic households).
Ask them why the telecommunications industry gets what it wants, but the average John and Jane Doe – who were the supposed beneficiaries of the Communications Act of 1934 – are usually left holding the bag.
And tell the FCC this: STOP! Enough, already!
NAB 2011: It’s All About Streaming, Displays, and Connectivity
- Published on Wednesday, 20 April 2011 13:25
- Pete Putman
- 0 Comments
With each passing year, NAB looks less and less like a broadcaster’s show and more like a cross between CES and InfoComm. It’s a three-ring circus of product demos, panel discussions, conferences, and media events that all points to the future of ‘broadcasting’ as being very different than what it was at the end of the 20th century.
Officially, slightly less than 90,000 folks showed up to walk the floors of the Las Vegas Convention Center, and it was elbow-to-elbow in some exhibits. But there was another trend of smaller booths for the ‘big name’ exhibitors like Panasonic and JVC.
That reflects the reality of selling products that have mostly three and four zeros in their price tags. At my first NAB in 1995, it wasn’t unusual to see $50,000 cameras and $80,000 recorders. Now, you can buy some pretty impressive production cameras for about $5,000.
Streaming and over-the-top video was big this year. Ironically, NAB featured an enormous streaming media pavilion back in 1999, but it vanished the next year. The reason? A lack of broadband services across the country that could support streaming at reasonable bit rates.
Obviously, that’s all changed now, what with Netflix at 21 million subscribers and climbing, and MSOs deploying multi-platform delivery of video and audio to a plethora of handheld devices. Concurrently, the broadcast world is trying to roll out a new mobile handheld (MH) digital TV service to stand-along portable receivers and specially-equipped phones.
And behind all of this, the FCC continues to make noise that it wants to grab an additional 100 – 120 MHz of UHF TV spectrum to be repurposed for wireless broadband, a service you’ll have to pay for. Attendees had mixed thoughts on whether the Commission will actually be able to pull this off – there is some opposition in Congress – but there appeared to be a high level of opposition to the plan, considering there is plenty of other spectrum available for repurposing, much of it already used exclusively for government and military purposes.
Like last year, there were lots of 3D demos, but the buzz wasn’t really there. 3D still has a ways to go with its roll-out and it simply can’t compete with the interest in content delivery to smart phones, tablets, and other media players. Still, there were some cool 3D products to be found here and there.
Here are some of the highlights from the show.
ATSC MH Pavilion – several companies exhibited a range of receivers for the MH services being transmitted during the show from Las Vegas TV stations and low-power rigs in the convention center. LG and RCA both showed some snazzy portable MH receivers, with LG’s exhibit putting the spotlight on autostereo 3D MH (as seen at CES) and a service call ‘Tweet TV’ which would allow viewers to comment on shows they’re watching and have those tweets appear on their MH receiver.
Another demo had CBS affiliate KLAS-DT transmitting electronic coupons for local retailers and restaurants during the show. These showed up on a prototype full-touch CDMA smart phone with a 3.2” HVGA screen.
In a nearby booth, RCA unveiled a lineup of hybrid portable DTV receivers. There are two 3.5” models (DMT335R, $119, and DMT336R, $159), a 7” version (DMT270R, $179), and a pocket car tuner/receiver that connects to an existing car entertainment center. It will sell for $129.
Motorola had two intriguing demonstrations. The first showed full-bandwidth 3D content distribution, using the full 38.8 Mb/s bandwidth of a 256 QAM channel to transport frame-packed 1080p video with full 1920×1080 left eye and right eye images, encoded in the MPEG4 H.264 format and sequenced through active shutter glasses.
Nearby, an HD video stream was encoded for four different displays, with all four signals carried simultaneously in the same bit stream. First up was a 1080p/60 broadcast; next to that a 720p/60 version, followed by a standard definition version (480i) and a version sized for a laptop computer or tablet. Both MPEG2 and MPEG4 codecs were used.
Red Rover attracted quite a crowd with their 28″ 4K (3840×2160) 3D video monitor which uses two 4K LCD panels arranged at 90-degree angles to each other (one on top, facing down). A half-mirror with linear polarization is used to combine the left and right eye images for passive viewing. Both LCD panels are Samsung vertically-aligned models, and the whole works will sell for (ready for this?) $120,000.
Volfoni showed dual-purpose 3D glasses at NAB. When powered on, they function as active shutter eyewear. Powered off, they are usable as passive 3D glasses. The whole shebang is controlled by an external power pack the size of an iPod nano that clips to your pocket or shirt, and this ‘pod’ can ‘learn’ any IR code from active shutter TVs.
The pod controller can step through several neutral density filters and there are several levels of color correction possible from the remote power pack. (Electronic sunglasses – imagine that!) The glasses use 2.4 GHz RF signaling technology to synchronize with any active shutter monitor or TV. And despite all of the bells and whistles, they weigh just over an ounce.
Sony’s 17″ and 25″ BVM-series OLED monitors that were first shown at the 2011 HPA Technology Retreat now have siblings. The PVM-E250 Trimaster OLED display is structurally the same as its more-costly BVM cousin, but has fewer adjustments and operating features. And it’s going to sell for quite a discount over the BVM version – just $6,100. There’s also a 17-inch version which wasn’t operating at the show, and it is expected to retail for $4,100.
Up at the front of the Central Hall, Panasonic was showing the TH-42BT300U, their first plasma reference-grade monitor. It’s not all that different from the exiting 20-series industrial plasma monitors in appearance, but there’s a big difference in operating features. Black levels have dropped and low-level noise has been minimized with a half-luminance PWM step. This results in more shades of gray and a smoother transition out of black.
In addition, the TH-42BT300U supports 3D playback for side-by-side and top + bottom color and exposure correction. Panasonic has also added automatic ’snap-to’ color space menu options, along with a user-definable color gamut option. When calibrated, it was an eye-catcher. There’s a 50-inch version also in the works, and both monitors will go on sale this fall.
Hyundai unveiled the B240X, a new 24″ passive stereo LCD monitor. It sports a 1920×1200 display with circularly-polarized film-patterned retarders and supports 3D side-by-side and top + bottom viewing formats. The pixel pitch is about .27 mm and brightness is rated at 300 nits. Hyundai also created an eye-catching 138″ (diagonal) 3×3 3D video wall for NAB, using its flagship S465D 46″ LCD monitor.
Sisivel has come up with a unique way to deliver higher-resolution 3D TV in the frame-compatible format. Instead of throwing away half the horizontal resolution for 1080i side-by-side 3D transmissions, Sisivel breaks the left eye and right eye images into two 1280×720 frames. The left eye frame is carried intact in a 1920×1080 transmission, while the right eye is broken up into three pieces – the top 50% of the frame, and two half-frames that make up the bottom.
All of this gets packed in a rather unusual manner (see photo), but some simple video processing and tiling software re-assembles the right eye fragments into one image after decoding. Then, it’s a simple matter to sequence the lefty eye, right eye images as is normally done. The advantage of this format is that it has higher resolution than ESPN’s top+bottom 3D standard (two 1280×360 frames).
JVC announced two LCD production monitors at NAB. The DT-V24G11Z is a 24-inch broadcast and production LCD monitor that uses 10-bit processing and has a native resolution of 920×1200 pixels. The extra resolution provides area above and below a 1080p image for metering, embedded captions, and signal status. The incoming signal can also be enlarged slightly to fill the entire screen.
The DT-3D24G1Z is a 24-inch passive 3D monitor with circular polarization patterned films. It has 1920×1080 pixel resolution, 3G HD-SDI and dual-link inputs, a built-in dual waveform monitor and vectorscope, left eye and right eye measurement markers, and side-by-side split-screen display for post production work including gamma, exposure, and color/white balance correction.
Nearby, crowds gathered to see two new 4K cameras that use a custom LSI for high bitrate HD signal processing. The demo used a Sharp 4K LCD monitor, and the cameras were running at 3840×2160 resolution. They have no model numbers or price tags yet.
Ikegami’s field emission display (FED) monitor that attracted so much attention a few NABs ago, but was written off when Sony pulled out its investment from the manufacturer, is now back. Its image quality compared favorably with Sony’s E-series BVM OLED monitors, and the images displayed with a wide H&V viewing angle and plenty of contrast pop. It was being used to show images from a Vinten robotic camera mount at NAB, and no pricing has been announced.
Dolby showed their PRM-4200 42-inch HDR LCD reference monitor at NAB. While this product is not new, there was a substantial price cut announced at the show to $39,000. Initial comments from the post production community have indicated the price is too high for today’s economic environment. As a result, Dolby has apparently sold a few to video equipment rental houses for location and studio production work.
Digital SLRs are being used to shoot TV productions such as “House” and independent films, and they could use a couple of good monitors with hot shoe mounts. Nebtek had a 5.6” model at the show, as did TV Logic. Both models sport 1280×800 (WXGA) resolution, compatibility with HD-SDI and HDMI inputs, and have on-screen display of waveform/vectorscope details, focus assist, and chroma/luma signal warnings. Embedded audio from the cameras’ HDMI output can be displayed on screen, and there are several scan and pixel mapping modes.
One of the more significant announcements at the show – at least, at first reading – was Verizon’s Digital Media Services. The idea is to serve as an electronic warehouse for everyone from content producers to digital media retailers – in effect, an Amazon e-commerce model, except that Verizon wouldn’t sell anything; merely ‘warehouse’ the assets and distribute them as need to whomever needs them.
Numerous companies showed real-time MPEG encoders, among them Z3 Technology, Visionary Systems, Haivision, Vbrick, Adtec, Black Magic Designs, and (of all people) Rovi, otherwise known for their electronic program guide software. Many of these encoder boxes can accept analog video (composite and component) as well as HDMI and DVI inputs. The general idea appears to be ‘plug-and-play’ encoding for IPTV streaming across a broad range of markets. The Black Magic encoder was the cheapest I’ve seen to date at $500, while price ranges on other models ranged as high as $9,000.
Tektronix had one of the funnier (unintentionally) demonstrations of test and monitoring gear. A new combination monitor, the WFM300, has a color anaglyph mode where you can see the interocular distance for red and cyan color anaglyph program material. Never mind the fact that color anaglyph isn’t being used for much of anything except printed 3D these days, so what were the folks at ‘Tek’ thinking?
Finally, Sony showed they can be all wet but still on top of things with their demonstration of an HXR-NX70U 1080p camcorder operating normally while getting a pretty good hosing. The camera is completely water-sealed and dust-sealed for use in hostile environments, and records to internal hard disc drives and memory cards. The shower ran continuously during the show and the camera never even hiccupped. Fun stuff!
NAB 2010: A Show in Transition
- Published on Friday, 16 April 2010 19:40
- Pete Putman
- 21 Comments
Some of the big questions facing attendees as their flights landed in Las Vegas were these: Can NAB survive? Will it evolve into something different? Is it even that important to attend NAB anymore?
The answer to all three questions is “yes.” Even though attendance was still down from 2008 (NAB claimed 83,000 ‘officially;’ my guesstimate was more like 55,000 to 60,000), there were plenty of companies in attendance with lots of cool products to check out.
That said, the show is undergoing a rapid transformation away from a traditional ‘broadcasting’ show to a mix of InfoComm and CES – hot new products for professionals. Of course, 3D was all over the place. But so was networked video, which dominated the upper and lower South Hall exhibit areas.
Booths were smaller this year, and that’s not going to change any time soon…not when the typical booth is showing products that have price tags in the hundreds and low thousands. Contrast that with NAB shows 15 years ago, when most of the price tags had three and four zeros in them!
The smaller booths and lower number of exhibitors resulted in wider aisles and less traffic – a plus. But it also resulted in NAB placing the main registration area smack in the middle of the Central Hall, something I’ve never seen before. And there was plenty of wide-open space at the end of that hall, as well in the North and South Halls.
Can NAB be staged in three halls? Absolutely! And can you see everything you need to see in three days? Try two days. (Thursday has become ‘exhibitor bonding day,’ to quote a fellow editor.) I could have covered my beat in two days if necessary.
Not surprisingly, 3D was a big topic this year, although not to the same extent as it was at CES. The SMPTE/ETC/EBU Digital Cinema Summit focused entirely on 3D for both days, and I was fortunate enough to deliver one of the papers to a jammed room of 500+ attendees.
Sony, Panasonic, JVC, Canon, Grass Valley, AVID, Doremi, Harris, Evertz, and Ross Video were just some of the companies showing 3D products in Vegas. Those products ranged from 3D monitors and cameras to 3D workflow (acquisition, editing, post, effects, and playout) software and hardware.
Other specialized 3D brands were in attendance, too. TD Vision, Miracube, Mistika, and HDlogix had nice exhibits in the South Hall, down the street from Grass Valley. Smaller companies like Cine-tal occupied the 3D Pavilion nearby, while Motorola and Ericsson showcased 3D transport and format recognition products upstairs.
Although the consumer TV market is seeing a big push towards active-shutter 3D TVs and monitors, the emphasis at NAB was on passive 3D viewing (cheaper glasses, more expensive displays). JVC, Hyundai, and LG all manufacture them, and there were plenty of folks standing around with RealD X-pol eyewear watching the demos.
The projector guys were on top of things, too. projectiondesign showed a stacked pair of 3-chip 1080p lightboxes in the Mistika booth, using linear polarized glasses. HDI showed a 100-inch, 1080p LCoS rear-projection TV in the HDlogix booth, also using X-pol glasses. Christie also had suitable 3D projection systems out for inspection.
There were also some demos that left me scratching my head, such as Canon’s dual-projection X-pol 3D demo, using a pair of REALiS WUXGA (1920×1200) LCoS projectors. While it worked well, it requires two separate projectors and outboard 3D filter holders – too klunky! (A Canon rep told me that was because of the 60 Hz frame rate limitation on the internal video processor.)
Broadband video and IPTV were also big this year. This market for MPEG-4 AVC over Ethernet, fiber, or private data networks is exploding, and encoder companies such as Adtec, Vbrick, Harmonic, Ericsson, Harris, Motorola, and Digital Rapids were showing a full range of compatible products.
Sezmi also occupied a booth at the show. This company has a unique selling proposition – a set-top box that receives both terrestrial (read: free) digital TV and selected cable channels carried on secondary terrestrial channels. It also accesses a video-on-demand server through broadband connections (SDTV only) and has a customizable program guide for each user.
While not technically broadband, the nascent MH broadcast format was in abundance at NAB. MH uses MPEG-4 AVC coding in multiple streams with IP headers to send low-resolution video to handheld receivers, such as mobile phones and combo PDA/receiver products. MH is catching on in popularity with broadcasters, who see it as a more sensible alternative to simple multicasting of secondary channels that very few people may be watching.
After three days of walking around, I came up with a list of “finds” that I’ll share here. These are all products that represented clever thinking, breakthrough technology, and/or new price points. Some were easy to spot; others required quite a bit of digging. But they all made the trip to Lost Wages worth it (and that’s saying a lot, considering how airlines jam you in like sardines these days!).
TV Logic: This manufacturer of LCD broadcast monitor showed the world’s first active-matrix OLED broadcast monitor (unless you think Sony’s press announcement hit first, which it didn’t.) The LM-150 ($6,200) uses a LG Display 15-inch OLED panel with 1366×768 pixel resolution and come equipped with all the expected niceties including markers, crop marks, caption displays, over/underscan, and HD/SDI, HDMI, and analog video jacks. There’s also a 3D version in the works (TDM-150) that will sell for about $7,700.
Ericsson: In addition to a host of MPEG-4 and IPTV encoders, the ‘big E’ also showcased an innovative, iPad-like LCD touchscreen remote control/video viewer. Dubbed the IPTV remote, this product can dial up video from broadband, cable, satellite, and even your home network. Not only that, it can monitor weather sensors and your home security system. (Sound much like a Crestron product?) The IPTV remote will not be offered for sale at retail. Rather, it’s intended to be a content provider offering.
Christie: Have you seen their MicroTiles yet on the Colbert Report? These innovative ‘mini’ DLP projection cubes use LED light engines to power 800×600 DMDs (the actual working resolution is 720×540) and measure about 12” x 16.” They can be configured in just about any format you wish, including floor and ceiling projection, and up to 1024 can be driven at one time. The LED light source is specified to last over 60,000 hours. Think of LED-powered LEGOÔ blocks, and you’ve got the concept.
SmallHD: It wasn’t easy finding these guys behind the Sony booth, but they’d come up with a focus assist monitor for video and still cameras that they claim is the world’s smallest HD video monitor. The actual size is about 5.6 inches and the glass is WXGA (1280×800) LCD. It comes in two flavors – one for digital SLRs ($899) and one with SDI input ($1199). The monitors are an inch thick, weigh 10 ounces, and mount to hot shoes.
Z3 Technology: I found this booth on my last pass through the South Hall, and it was worth the stop. They showed the Z3-MVE-01 MPEG encoder, a compact box that codes HD up to 1920×1080 resolution using H.64 High Profile (up to 30Hz), with Ethernet and ASI outputs. Input compatibility includes composite, component, HDMI, DVI, and HD-SDI video…all for $5,000.
Adtec: I didn’t expect to see an HDMI-to-QAM modulator at the show, but that’s exactly what Adtec pulled out for me. The HDMI2QAM is a dual-channel design that encodes anything from the HDMI inputs (yes, they are HDCP-compliant) to a pair of quadrature amplitude modulation (QAM) channels, using MPEG-2 encoding. The modulation format is selectable between 64-QAM (SD), 128-QAM (not widely use), and 256-QAM (HD). Bit rates are constant and optimized for each mode (i.e. 38.8 Mb/s for each HD channel).
Cydle: This new start-up demonstrated an app for iPods and iPhones that allows viewing of ATSC MH (A/153) video. Along with it comes the i30, a battery-powered docking station with built-in antenna (UHF). This means that your ‘i-whatever’ has two batteries to draw from, so if you run low on talk power, simply switch to the i30 battery. Both can charge simultaneously. Cool!
Panasonic: I’ve seen it before at CES, but it now has a model number. The company’s first production camcorder now goes by the moniker AG-3DA1 and is yours for the low, low price of just $21,000. (Well, all things are relative, I guess.) The camera weighs about 6 and a half pounds and uses a pair of 2.l07 MP sensors (full 1920×1080) to record 1080i and 720p HD content to SD memory cards. Convergence and horizontal and vertical displacement are fully adjustable.
Panasonic gets another mention for the AG-AF100, which they claim is the world’s first Micro 4/3-inch (1.33:1) HD camcorder. That’s a big deal because the 4/3” format matches the coverage area of 35mm film frames…which means you can use standard 35mm film camera lenses to get effects like shallow focus, soft focus, and vignettes. The camera records to SD/SDHC/SDXC memory cards using the AVCHD format and supports 1080i/p and 720p formats, including 23.98/24/25 Hz.
Sony gets extra credit for announcing the world’s second (or first) AM-OLED professional video monitor. The PVM-750 ($3,850) is a bit smaller than TV Logic’s offering at 7.4 inches (16:9), and is not quite full HD resolution at 960×540 pixels. (Not that you’d notice on such small screen!) The PVM-750 has 3G HD-SDI, HDMI, and composite video inputs, the full range of adjustments from tally and markers to blue screen mode and AC/battery power operation. No word on lifespan of the display, but Sony uses small molecule (SM) OLED technology, as does LG Display.
LP Technologies rounds out my list with one of those ‘too good to be true’ products: An LCD-based 9 kHz to 3 GHz spectrum analyzer with USB 2.0 interface, built-in preamp, and Ethernet connectivity for remote monitoring. Sorry, no internal battery pack!) The USB hook-up can be used to save data in the Excel format, while the internal memory can tore 900 different waveforms. The display is a 6.4” 640×480 (VGA) LCD type. And the cost? Just $4,500…
Classic Product Review: Eviant T7 Card Portable Digital TV (2009)
- Published on Thursday, 08 April 2010 15:15
- Pete Putman
- 28 Comments
It’s finally over. The United States has transitioned away from analog (NTSC) TV broadcasting after 60+ years, and moved to an all-digital system (8VSB) for full-power TV stations. (Low power and translator stations are still analog for a few more years.)
The NTIA converter box program is slowly winding down, and the latest estimates from Nielsen (June 21) showed that about 2.1 million homes, or 1.8% of all over-the-air TV viewers, were still unable or unprepared to watch digital TV.
The upside? Over 62 million converter box coupons had been mailed as of June 24, with 32 million redeemed and 24 million expired. And of course, every new TV set that supports NTSC reception must also support the ATSC DTV standard. So, we’re out of the woods with DTV reception issues, right?
Not quite. Everyone that ever bought a portable TV, from Sony Watchman LCD sets to tiny tabletop CRTs, just saw their investment reduced to zero on June 12. None of these legacy sets can receive ATSC signals, and it’s impractical to connect an NTIA converter box as a “retro move,” since there’s only one model that can run off batteries.
Never fear; Eviant is here! The company recently introduced two new LCD portable TV sets that are fully ATSC-complaint. Both sets are being featured as “hurricane TVs,” or sets you should keep around in case of a weather emergency. But they’re also good-looking and small enough to use for everyday viewing on the go.
The T7 “Card” is the larger of the two models and the one that’s currently shipping to retail. According to the press release, “…The Eviant “Card” series 7-inch digital portable TV is available now in leading retail outlets including Kohls, JC Penny, Walmart.com, Target.com, Belks, Aafes, Bon Ton, D&H, HSN, Amazon.com, Shopko, Marsan and more with a MSRP of $169.99.”
OUT OF THE BOX
Eviant’s T7 is about the size of a thick paperback book, and not all that heavy. It measures 7.3 inches wide by 5.7 inches high and is 1.1 inches deep. With the included lithium ion battery, it tips the scales at just over a half-pound. The supplied lithium ion battery charges up quickly (less than one hour), and is supposed to provide 2.5 hours of viewing time between charges.
Eviant has shown this TV with different color finishes. The official press photo shows a white housing, but my review sample was black and I also saw a red version at the CES summer line show. The shipping box shows pink, blue, and green as additional “skin” options, so you can knock yourself out with color coordination options!
The T7 isn’t just a TV. Eviant has also included a composite video input and mini audio connection to go along with it, plus a matching cable. If you have a portable media player with these connections, you can at least watch your videos on a larger screen. There’s also a mini-stereo headphone connection for private listening.
The whip antenna is actually a slide-on whip, which means you can pull it off and hook up other types of antennas to the threaded F connector. (Bravo, Eviant!) Eviant’s also included a little vertical UHF antenna with a magnetic base that you can stick just about anywhere.
The TV has a swing-out support stand for tabletop use. There’s even a credit card-sized remote control that has extremely limited functionality — basically, you can adjust volume and channel, plus access the menu. There isn’t even a power button on the remote (strange!), but there is a “channel +10” button for moving around faster.
The LCD display measures 7” and has a working resolution of 480 x 234 pixels, so don’t go crazy expecting to see HDTV on this product. Remember — it’s a portable TV, first and foremost. Besides, trying to put a 7” HD display in a product like this would be overkill.
MENUS AND OPERATION
Eviant has included a surprising detailed menu. There are five sections you can diddle around with — Picture, where you can select the AV input or regular TV mode, plus choose between Personal, Dynamic, Standard, and Soft image presets, and fine-tune contrast, brightness, and color.
The Audio menu is where you can adjust balance, plus select the preferred language when more than one audio track is available. The Clock menu lets you set the OSD duration in 15-second increments, plus toggle to your time zone and switch Daylight Savings Time on and off.
The Tools menu is where you can set the OSD transparency (on or off), color temperature (Warm, Normal, Cool), and the picture Zoom mode for when 4:3 content is displayed on the screen. The default (factory) setting for this control is Wide, but you can switch everything (including HD broadcasts) to 4:3. Or, you can just select Auto, and let the T7 provide the correct screen size, based on the video format being transmitted.
The last menu, Channel, is where you’ll scan for ATSC and NTSC channels. Believe it or not, the T7 will also scan for and receive NTSC and QAM digital cable channels (handy for when there’s a cable TV feed near your campsite, I guess?). The NTSC support means you’ll still be able to pick up local community TV stations, which converter boxes won’t receive.
You can initiate a general channel scan in this menu, and also an overlay scan to pick up any channels you may have missed the first time around. This secondary scan is also handy if you rotate antennas or travel, and don’t want to lose digital TV channels you captured previously.
I first tested the T7 by connecting it to my attic antenna system, which feeds my home office. It takes a while to scan — about two and a half minutes to saunter through channels 2 through 69 — but once done, works as well as any PC-based digital TV tuner I’ve tested. As you step through channels, you’ll see a blue display in the upper right corner of the screen showing you each station’s virtual channel number and call sign.
One thing you won’t see on the T7 is PSIP. For whatever reason (and it may be that cost is the reason), there is no way to display electronic program guide information on the T7. It will, of course, display closed captions. But the only way you’ll know what you’re watching is to change the channel up and down to get the virtual channel display to appear briefly onscreen again.
The next step was to connect the T7 to my rooftop antenna via a splitter, with the other leg feeding a Zenith DTT901 DTV converter box. My goal here was to see how the two compared in terms of sensitivity and ability to handle multipath.
The answer? They were equivalent in performance on both close-in and distant DTV channels. I installed a 20 dB step attenuator in line to both sets and began cranking back signals 1 dB at a time until they started to break up or drop out. That point was exactly the same for every channel on both the T7 and the DTT901( the latter is effectively running Generation 6 8VSB receiver technology).
An inquiry to Eviant’s PR firm came back with the response that the receiver’s chipset is made by MStar Semiconductor of Taiwan, and is the MSD110. From my tests, it appeared functionally the equivalent of the LG 8VSB front end used in the DTT901.
The next test took place during my Super Tuesday session at InfoComm. The session, attended by 180+ people, was held in Room 303 of the Orlando Convention Center. I scanned for channels and picked up over 25 different NTSC and ATSC programs, most of which played just fine without any dropouts, no matter where I placed the TV in the room. (This location is over 20 miles distant from the Orlando TV transmitters.)
The final test was to take the T7 into New York City for some press meetings. One was uptown at the Hilton Times Square, and the others were at the Metropolitan Pavilion on 18th Street. Reception was perfect on 42nd Street by Times Square on all channels, including high-band VHF channels 7 (WABC), 11 (WPIX), and 13 (WNET). Reception deep in the Hilton was spotty in places, but still better than I expected.
Later on that afternoon, I plunked the T7 on the wooden bar of an Irish pub on 18th Street, as our group tossed down a quick round of Harp lagers before Pepcomm’s Digital Experience opened. Once again, I experienced flawless reception of all NYC DTV channels with the whip first extended halfway, and then fully extended. (The T7’s whip is actually more resonant at UHF frequencies when somewhat collapsed).
Just for laughs, I pulled the T7 out seconds after my westbound, double-decker NJ Transit Midtown Direct train exited the New Jersey side of the Hudson River tunnel. I flipped it on and was able to watch quite a bit of programming on WABC-7 and WPIX-11, even with the train moving at a pretty good clip — 50+ miles per hour. I could see the Empire State Building through the opposite train windows for a good part of the trip, so I figured it was worth a try.
Of course, signals were lost completely when we went through the Secaucus train station and also when we crossed lift bridges and went under other tracks. But the video and audio were there about 70% of the time. And once the train pulled to a complete stop in Newark to take on and pick up passengers, VHF and UHF DTV reception was rock steady.
Eviant’s T7 delivers the goods. It has an excellent DTV receiver front end and worked very well indoors in what are difficulty high-multipath environments (Times Square, 18th Street, and the Orlando Convention Center). Audio is surprisingly loud for such a small TV, although frequency response is limited. Images were very clear and crisp, even at low resolution.
What I didn’t like: Even with a +10 channel jump button, it takes a while to move from one channel to another. There should also be a power switch on the remote control. And I’d like to see at least a “mini program guide” button included, so you at least find out what the heck program you’re watching.
The time (broadcast by every digital TV station) isn’t even displayed, unless you go into the menu. Oops! That info would be very helpful on a “hurricane TV.” Oh, and by the way, Eviant — how about a car charger adapter for this TV, in case of a power failure that lasts more than 2.5 hours?
In any event, the T7’s faults aren’t deal breakers. From what I’ve been told, pricing is very competitive on this product — a quick check online shows Target pricing them at $149.95, and Amazon had the black version listed as low as $119. For that kind of money, you can’t go wrong.
Eviant T7 Portable Digital TV
Dimensions: 7.3” W x 5.7” H x 1.1” D
Weight: .55 pounds*
RF Input: “F” connector with fitted collapsible whip
TV Systems: NTSC, ATSC, QAM
Video inputs: (1) Mini-plug
Audio inputs: (1) stereo mini-plug
Audio output: 8-ohm stereo mini plug
* Owner’s manual says .55 pounds, press release says 1.39 pounds
1661 Fairplex drive
La Verne, CA 91750
CES 2010 – Part I: Big crowds, smaller booths, 3D, MIAs…
- Published on Friday, 15 January 2010 11:46
- Pete Putman
- 1 Comment
CES 2010 rebounded nicely from last year’s lightly-attended show. But there weren’t as many surprises this year.
First off, 3D was everywhere. You couldn’t hide from it. I estimate I saw at least 20 demos of 3D over two days, and toards the end I simply declined the active or passive glasses and just took notes on the manufacturer and the projector or TV on display. 3D is like the wild west right now – everyone’s advancing their own “solution” and there aren’t any standards for home delivery just yet. (Where’s a sheriff when you need one?) Some of the more ballyhooed demos were actually disappointing, like JVC’s 4K 3D demo that used passive glasses. Yes, the images had lots of detail. Yes, they were larger than life. But they also exhibited too much crosstalk for my liking. (Crosstalk in 3D appears as unwanted ghost images in your glasses and is actually left or right eye information showing up in the wrong eye.) My preference was for the active shutter demos – they were cleaner and a better representation of 3D.
Secondly, more and more companies are jumping on the NeTV bandwagon. In addition to new Widget alliances and an entire App Store that Samsung announced, I saw numerous demonstrations of image processing for cleaning up Internet video to be shown on large screens. IDT’s suite at the Wynn had some particularly effective processing for not only YouTube videos, but movies downloaded to iPods as well. Those of you who own large LCD and plasma TVs know exactly how bad Internet video looks on a 1080p screen. These processors don’t make it look substantially better, but they do clean it up enough to be tolerable. This movement towards broadband delivery of video content is exactly why CE companies are asking the FCC why it is that digital TV stations really need all of the channels currently allocated to broadcasters.
One good answer is mobile handheld digital TV, or MH. There was an entire MH pavilion this year in the Central Hall, loaded with exhibits of integrated MH cell phones, MH receivers inside portable DVD players, and USB plug-in MH receiver sticks. Participants included LG, Samsung, Movee, and the Open Mobile Video Coalition (OMVC), among others. Combined with a primary HD program stream, MH could be a real game-changer for broadcast television. Add in custom widgets from local TV stations to appear on NeTVs, and voila – broadcasting has re-invented itself.
Yet another trend was green displays, from pocket LED projectors to LED-backlit LCD TVs. Even Panasonic got into the game with a demonstration of 25% to 30% reductions in energy usage on their latest line of plasma TVs. LED baklights are rapidly replacing cold-cathode fluorescent lamps (CCFLs) commonly used in LCD TVs. My prediction is that LEDs will be the dominant backlight technology within two years across all sizes of LCD TVs – they contain no mercury (although they do contain gallium, a rare metal) and enable much better color control and local area dimming. In the projector world, Samsung showed an LED-powered 3LCD model that was rated at over 1000 lumens, while Casio featured a hybrid red diode – blue laser – green phosphor color wheel design in an ultra-slim $800 XGA DLP chassis!
I was quite impressed with the size of the booths staged by Chinese TV manufacturers TCL, Haier, and HiSense. TCL manufactures the RCA line of LCD TVs, while HiSense is planning to launcha full line of TVs and related products this year, under its own name. That includes 240Hz Tvs, 3D models, and Blu-ray players.These are major players, and wil give the Japanese and Korean manufacturers a run for their money.
Missing in action? Pioneer’s AV receivers and BD players (they opted to skip the show to “conserve resources”), Hitachi’s LCD TVs and camcorders (no public explanation why), and Sanyo’s line of camcorders, cameras, and projectors (again, no official word on why they passed up the show). Those are three substantial, heavyweight players in the CE marketplace!
Well, back to work. Look for more detailed coverage next week, this time with photos. (Boy, it takes a LONG time to download and edit 750 images…)