Originally Posted by robertforsyth
Following-up on my earlier posts, WJLA was unable to locate a suitable UHF channel in and around Washington, DC. WJLA is now focused on solving, if at all possible, the myriad of reception problems that have arisen on high-band VHF channels since the DTV transition.
As part of this effort, WJLA recently received temporary authority from the FCC to increase WJLA's ERP. The FCC approved this increase to allow WJLA to conduct testing to determine if the resulting stronger signals overcome any of the reception problems.
We encourage all to conduct their own tests and to share your results on this page. Your work will be instrumental in determining whether the FCC should approve power increases for high-band VHF stations.
Robert, Thanks a lot for doing this. My respect for Channel 7 grew tremendously.
It is puzzling, because before DTV switch among analog channels 7 and especially 9 were the least noisy channels (among 4 - 66) in Manassas VA, especially 9. So, I presumed that digital channels are quite robust against noise. To my surprise they completely disappeared after the switch. I have rooftop antenna with about 36 db amplifier tuned to the max amplification.
Sometimes I could receive them with sound and/or video freezes very late at night. More often I could watch channel 2 (than 7), but it is not stable either.
That is until yesterday I discovered that I could watch "King Kong" at 8 pm; but it was good for about 2 hours and then signal drops reappeared around 10:30 pm.
Before power increase my digital HDTV would show 10% of signal when it could find channel 7 and my DTV converter box would show about 30%.
Now HDTV gives 20% and converter box around 40%.
So, if anything, I'd wish increase in power was permanent and even a bit higher, say in the range 60-100% of previous analog channel power.