I tried a 10db attenuator with no results. I am considering getting an FM Trap (Mention in one of the links posted by Roginator) https://www.tvtechnology.com/opinions/dtv-interference-on-vhf-channels-413 after that, I guess I am out of options. I direct messaged the Fire TV twitter account, to see if I can reach someone who could contact their dev team, but got no reply. Really disappointing.
I have been having this same problem with FYI 20.1 in Indianapolis. When switching to 20.1 the signal is perfect for the first ten to twenty seconds and then pixilation and screen freezes start. Bypassing the Recast I have no issues. I am 5 miles away from the Antenna farms on the Northwest side of Indy. I have a Channel Master Metrotenna40 on my roof top (approximately 30 feet off the ground) pointed West, Northwest. I have about a 60 foot run of coax from the antenna to the recast. Since installing the recast and being presented with this issue I have moved the antenna from 10 feet off the ground located on the Southwest corner of the house to the roof on the Northwest corner of the house, added, at the recommendation of several people (one being an Engineer at our local FOX affiliate), a LTE filter, 6db Attenuator (to address a possible over powered signal) a high pass filter (remove FM interference), a Channel Master distribution amplifier since I split the antenna between multiple TVs (with terminators on the unused out ports), and an Channel Master adjustable gain pre-amplifier utilizing loan gain (suggested to address signal degradation between the antenna and the distribution amplifier since there is 50 feet of coax between the two). Nothing has helped and the issue persists ONLY for 20.1 while every other Indy channel comes in perfect clear all the time. I previously had a HD Home Run Quatro with the same issue (only FYI 20.1) that Silicon Dust was never able to resolve. That is why I bought the Recast.
Interesting. I looked up WFYI on Rabbitears.info and found it has 225 kW power. I thought, "wow! that's powerful!" until I looked at the stations around me. The most powerful, by far, is also the closest (3 miles) KTBY at 234 kW. The others are a fraction of that.
That being said, I don't have to aim my 2nd floor antenna at THAT station to receive it just fine. Maybe if you aimed your antenna north instead of northwest? Just something to try.
I have tried a few things to try to troubleshoot the pixelation issue. First was to move my outdoor antenna to a new location and replace the pre amp with a Channel Master CM-7778hd Amplify +running at low power setting. Pre amp has FM and LTE filters built in my old LNA-200 only had FM blocking but I don't believe noise was the issue. This Helped all of my channels signal strength most are 30db + or - about 3 db. I am still having issues although not quite as bad. My HTPC records from the same antenna and can produce a perfect recording of the same channel while Recast breaks up. At this point I think it is either the video codecs in use or maybe poor performance with multipath, although right now the wind is blowing hard and 13 came in fine during a quick check so multipath may not be it.. Not sure what to try next.
I can't figure it out either. Here lately WJZ-13 has been coming in pretty good. It seems like it has good days and bad. I installed -21dB of attenuators and the LTE filter. I use the HDhomeRun to check the signal strength and brought the signal down to 80%. Reconnected the Recast and WJZ seems ok but time will tell. Will keep you posted.
I was able to get an e-mail to WFYI 20's Director of Engineering Operations today. I explained the situation and his response was "The only significant difference with our signal and the others you mention is that we transmit two 1080i HD channels (20.1 and 20.2) along with one SD channel while the others only transmit one HD Channel. I don't expect this is a problem but you might check with the manufacturer as to whether the Recast has been known to have any problem with decoding two HD channels on a single broad cast signal." I wonder if the other stations where this problem is being experienced are doing the same thing? I wonder how you get an inquiry to someone at Amazon? Seems there is no customer support only these forums.
Was anyone able to figure out the issue? I have the same issue with WJZ-13 and only on the Recast. I have a Mohu Sky 60 in the attic attached to a PCT MA22PN 2-port splitter amplifier. One output goes to an old Tivo Roamio, the other to my Recast. The Recast experiences intermittent (every 3-5 minutes) pixelation issues while the Tivo sees WJZ no problem.
I was reading up on a suspiciously similar thing over on the SiliconDust forums. It seems the newer OTA HDHomerun devices weren't able to handle a handful of stations like WTVD, KOKI, WFYI*, WJZ, KVUE and WWJ. The signal would be strong, but would pixelate quite often. The older HDHomerun devices worked just fine!
The upshot is that Silicondust is looking at a firmware fix for the demodulator component. Whaddya wanna bet they use the same component in the Recast?
Add me to the list. I live in Carroll Co MD, and I am having the EXACT issues as mentioned above. All channels are perfect except Baltimore 13.1. This channel pixelates very often on the Recast, but a TV connected to the same antenna works fine. Very frustrating! I went through the trouble to replacing my ROOF MOUNTED antenna, which turns out was a waste of time and money. Fix this Amazon!!!
I live in Middle River MD and am also having the same issue with WJZ 13. I have a GE antenna in the attic run to a powered 8 port splitter to each of the cable outlets. The outlet I had the recast hooked up to in a bedroom, I hooked up to a TV when I moved the recast, and channel 13 comes in no issue on that TV. Like others have said, it will run for a bit no issue, then pixelation and some audio loss. I'm glad to see I'm not the only one experiencing this issue. I will keep up with this thread to see if anyone finds any suggestions. Thanks to everyone for their previous efforts as I too was looking at LTE and FM filters online as a possible solution. Keep us posted with any updated results, good, bad, or indifferent.