Electronic Visualization for the Next Century

Pete-Head-Shot-JULY-2012
  • Spectrum Repacking and Channel Scans

    September 5, 2018

    In the wake of last year’s big spectrum auction, the FCC is chopping even more spectrum away from UHF TV stations and expecting (somehow) to jam all the remaining TV stations into low band VHF (2-6), high band VHF (7-13), and truncated UHF (14-36) channels. In my neighborhood, stations are already packing up and moving. While conducting a recent test of a “smart” indoor UHF TV antenna, I grabbed some spectrum analyzer plots of all three television frequency bands. As expected, the RF spectrum from channel 56 to 87 (channels 2-6) was largely unusable due to high levels of impulse and main-made noise. The high band VHF spectrum wasn’t much better, with some continuous RFI kicking up the noise floor by almost 20 dB. But it was the UHF spectrum I was interested in, and several former broadcasters were noticeable by their absence. Channels 29, 35, and 39 – previously in use for Univision, independent, and PBS stations – had all gone dark. To get around the lack of avail..Read more

Ken---cropped
  • Useful Gadgets – Channel Master Stream+ OTA/OTT Media Player

    July 27, 2018

    Hard on the heels of my review of the Channel Master SMARTenna+ comes this rather odd-looking digital TV receiver. It doesn’t look like much, but thanks to tiny solid-state memory cards and miniaturization, it is a fully-functional digital TV receiver that also streams content from a variety of online channels like Google Play and YouTube. I call the Stream+ a “sidecar” box because we haven’t anything like set-top boxes in years (especially since our TVs don’t have “set tops” to begin with). Even so, many contemporary designs for STBs are still rectangular boxes that can be difficult to fit alongside or under an LCD or OLED TV. There are signs that manufacturers are willing to break those rules, such as the “puck” tuner for Internet-delivered cable TV channels that Arris has shown at NAB. Channel Master’s Stream+ fits into that mold nicely: It stands all of 3 inches tall and measures 3 inches in diameter at the top and 4 inches across its base. You aren’t li..Read more