FCC Pushing 'Double Re-scan'
Involves having consumers clear out their boxes' memories before re-scanning
By John Eggerton -- Broadcasting & Cable, 6/15/2009 3:09:28 PM
The FCC says some stations in Chicago and Philadelphia may have to apply for power boosts and are in discussions with stations there about their various technical issues, but that it is currently focused on consumer-based fixes for reception problems, including promoting what it is calling the “double-rescan.”That is having consumers clear out their boxes' memories before re-scanning, a process the commission says is having success, particularly in Chicago. Our teams are beginning to put the word out on the technique, says FCC spokesman Rick Kaplan.
Kaplan says that some consumers who were having problems with both channel 2 and channel 7 in Chicago, for example, were having problems with their boxes because both those stations went from a high UHF to a low VHF channel. "There are some converter boxes that, if you just do a normal re-scan, they won't be able to replace the old digital channel with the new one. So, you actually just have to clear the box out."
He says that the double re-scan has worked "very well" in Chicago with channel 2. The FCC has a person from the D.C. office now in the market who says the call center has been able to resolve "about 90% of the calls that way,” says Kaplan. He said L.A. has had success with the double re-scan as well, where according to field staffers there. 80%-90% of calls about KTLA reception have been resolved.
To double re-scan, says Kaplan, viewers need to unplug the antenna, then scan so it picks up nothing, then unplug the converter or DTV set, plug it back in, then rescan.
But for viewers still having trouble, says Kaplan, the FCC is talking with stations about possible long-term solutions from their end. If stations have to officially ask for more power, the FCC will take that seriously, he said. But that will also include figuring out who the boosted power might interfere with, and what dominoes that might trigger elsewhere.
"We want to figure out how to get it right," he says. "We don't want to rush, but don't want to delay, either." But while the commission is working with stations on their end, a process that won't be immediate if it involves adjusting power levels, the FCC "wants to make sure all consumer avenues are exhausted."
Talkback
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The FCC needs to keep those pre-transition channels available for digital U's that moved to V's in case things don't work.
In the Sacramento market, KXTV, 10 (ABC) moved its digital signal from a UHF channel to VHF 10 on Friday, while KVIE, 6, (PBS) moved digital to VHF 9, when KQED-TV, (PBS) San Francisco signed off.
Using the same mid-range VHF/UHF Yagi aimed at the Walnut Grove antenna farm, I used to be able to see both stations' DTV signals with some pixellation and loss of signal in Marysville, about 60 air miles north of the farm, but not now.
No problems otherwise with all but one of the other full-power Sacramento/Stockton stations, as they remained on UHF.
KCRA analog 3/DTV 35 (NBC) is MIA on the DTV side of things. In the winter, we would see the signal strength come and go, bringing pixelation and loss of picture and sound.
I can see KCRA's analog nightlight on 3, and also KVIE's nightlight on 6... but three out of five major network players are MID on the DTV.
KCRA expects to move its DTV antenna to the top of its tower, replacing the analog antenna sometime this month. I hope that makes a difference, here.
It's interesting comparing the stations' receivability here. What end of the UHF band they're on seems to make no consistent difference.
BTW: I can get many LP digital stations from the Chico market off the backside of the same antenna with much the same signal strength as the full power CBS affiliate KHSL-DT.
Ted
Ted Langdell - 6/16/2009 10:23:57 AM EDT -
Channel 7 in Chicago will be a problem simply because WLS moved BACK to channel 7. The FCC said that TV stations that choose to remain on their digital channel are protected. Those who move allocations are NOT protected and have to accept interference from other TV stations or reduce power or use directional antennas to protect those stations assgined to channel 7 as their digital channel (or co-channels). Remember digital TV stations can be next to each other only if they are at the same antenna farm. Of course WLS didn't have a choice as their DTV channel was 52 and being taken away from them
Eric Post - 6/16/2009 10:19:11 AM EDT -
I am still having major problems getting WBBM-TV Channel 2 and I have called their engineer to inquire about boosting the power on their station to rectify this. Channel 7 is also having bigtime problems but after buying a third antenna and positioning it just ight to receibing their stations, it's only coming in at 50% capacity while Channel 2 is still at 0 capacity.
I just wrote to the FCC to have these two stations boost their power somewhat so we can somehow receive these channels. I've spent enough time this weekend trying to re-scan and re-boot the TV to get these stations. Time to get Analog Channel 6 off the air and then pull the plug on analog 32 and 48 as well. Analog 23 should be off the air in 30 days time, but regarding digital 23.3-8, why is this happening to begin with? The last fice sub-channels on this station are advertising something called THAT TV. Aren't stations only allowed 5 sub-channels in addition to their main channel? I don't understand this move by WWME-TV. I alos addressed that with the FCC as well.
Richard - 6/15/2009 5:02:37 PM EDT -
Eager to get home and try this. Maybe this will help with my second-poorest signal reception issue (besides channel 6), WHYY-12 as they moved from UHF 55 back down to 12. Stay tuned...
Joe - 6/15/2009 3:33:06 PM EDT
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