Good signal strength, pixelating signal quality

Help and support for HDHomeRun Tuners, HDHomeRun DVR, and HDHomeRun software for Windows, Mac, Android, XBox, etc.
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PeterHamlett
Posts: 3
Joined: Wed Aug 19, 2026 8:14 am

Good signal strength, pixelating signal quality

Post by PeterHamlett »

We have great signal strength but the signal quality varies in the 45-70% range. How do I shore up that quality? Thank you for the help!

Hardware Model TECH5-4K
Firmware Version 20260326

Frequency 533.000 MHz
Program Number none
Modulation Lock 8vsb
Signal Strength 98%
Signal Quality 66%
Symbol Quality 100%
Streaming Rate 19.256 Mbps

geriakt
Posts: 31
Joined: Sat Jul 23, 2022 8:42 am
x 2

Re: Good signal strength, pixelating signal quality

Post by geriakt »

What type/model of antenna are you using? Indoor or roof top? Does the antenna have a powered amplifier on or off? How many miles are you from the transmission tower? Do you have coax splitters between the antenna and Flex 4 k?
I think your issues is with a ATSC 1.0 broadcast. Do you see a better quality with ATSC 3.0?

Lots of this is relevant to how to improve a signal.

PeterHamlett
Posts: 3
Joined: Wed Aug 19, 2026 8:14 am

Re: Good signal strength, pixelating signal quality

Post by PeterHamlett »

I have a Televes DINOVA BOSS MIX antenna connected with an intelligent amplifier that has automatic gain control for a balanced signal and LTE, 4G, 5G, and FM filtering. It is mounted outside about 20 feet off the ground about a 1000 feet from the station antenna underneath the tower. I only need to receive the 1.0 signal OTA. This is working fine at other sites I operate. Seems like re-orienting the antenna is one option. Do you know the input voltage range on HD HomeRun. I could be feeding too much signal?.

PeterHamlett
Posts: 3
Joined: Wed Aug 19, 2026 8:14 am

Re: Good signal strength, pixelating signal quality

Post by PeterHamlett »

geriakt, Thanks for your help. I had a senior moment and was tuned to our station about 70 miles away! All 100s now. ;Peter

geriakt
Posts: 31
Joined: Sat Jul 23, 2022 8:42 am
x 2

Re: Good signal strength, pixelating signal quality

Post by geriakt »

PeterHamlett wrote: Wed Aug 19, 2026 10:36 am I have a Televes DINOVA BOSS MIX antenna connected with an intelligent amplifier that has automatic gain control for a balanced signal and LTE, 4G, 5G, and FM filtering. It is mounted outside about 20 feet off the ground about a 1000 feet from the station antenna underneath the tower. I only need to receive the 1.0 signal OTA. This is working fine at other sites I operate. Seems like re-orienting the antenna is one option. Do you know the input voltage range on HD HomeRun. I could be feeding too much signal?.
I have the Televes Ellipse Mix here in Central Florida. Have you tried turning off the amplifier to see if the quality improves? I know the Amp is self adjusting to the gain. If that doesn't work you may need to adjust the direction to your towers.

Mzip
Posts: 8
Joined: Sat Aug 01, 2026 6:41 am
x 5

Re: Good signal strength, pixelating signal quality

Post by Mzip »

I’m no expert but did see in the troubleshooting section that high signal strength combined with low signal quality can be too much signal. Since you say the station antenna is 1000’ away, it might be the issue and a preamp would likely only make things worse. Also, I believe they already have a preamp. I’d take the preamp out and try. Bet geriakt called it.

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