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20 KTXH Is Unwatchable

I try to watch 20 KTXH every so often I just have to turn the channel the picture flash or goes off for a few sec this happens every 30 sec to 2 min I get full signal and nothing is messing with the signal. This has been happining for like 6 months now this is just so annoying when your trying to watch SVU or King Of Queens anybody else noticed this??
 
If you're watching off the air you might try tweaking your antenna. You didn't change but perhaps something between you and the tower did. Digital TV is touchy.
 
fredcantu said:
If you're watching off the air you might try tweaking your antenna. You didn't change but perhaps something between you and the tower did. Digital TV is touchy.

I do not need to adjust my antenna this is the only station I see this
 
Could be some kind of incompatibility between their signal and your receiver. Have you tried a different TV or converter box?

Or it could be interference from some nearby unknown device operating on adjacent channel RF 18. (Police radio?) If that's the problem, a more directional antenna would probably help.
 
I have flat screen tv with built in convertor box
 
DJboutit3 said:
fredcantu said:
If you're watching off the air you might try tweaking your antenna. You didn't change but perhaps something between you and the tower did. Digital TV is touchy.

I do not need to adjust my antenna this is the only station I see this

You may still need to adjust your antenna. As Fred suggests, something has probably changed in the path between the channel 20 transmitter and your TV, and that something may affect different frequencies differently.
 
DJboutit3 said:
I try to watch 20 KTXH every so often I just have to turn the channel the picture flash or goes off for a few sec this happens every 30 sec to 2 min I get full signal and nothing is messing with the signal. This has been happining for like 6 months now this is just so annoying when your trying to watch SVU or King Of Queens anybody else noticed this??

Does it have someway to see the signal strength?
Are all your channels recieved from the same broadcasting tower? If not Fred is right, your antenna either needs adjusting, and I would suggest trying a different antenna and possibly an amp.
 
- Be careful about adding an amplifier. If you live within ten miles of the towers, it will probably make signals *too strong* and you may actually *lose* channels. You can certainly try one, but don't be too surprised if it causes more harm than good.

- Again, Fred has a good point about an FM trap - although that's more likely to affect channels 8, 11, and 13.
 
DJboutit3 said:
I have flat screen TV with built in converter box
Do you have another one you could try?

If not, don't worry about it. I just wanted to eliminate the TV's tuner as a possibility
 
w9wi said:
- Be careful about adding an amplifier. If you live within ten miles of the towers, it will probably make signals *too strong* and you may actually *lose* channels. You can certainly try one, but don't be too surprised if it causes more harm than good.

- Again, Fred has a good point about an FM trap - although that's more likely to affect channels 8, 11, and 13.

I have to hook up an amp to get my Tivo Premiere running it picks up the OTA signals fine, but as far Digital Cable, it requires a push of at least +8db of extra signal but I hook it up after the tuning adapter so most of channels get 90db of signal strength otherwise Channel 39, 40, 43, 49, 50, 90, and some other channels don't come in the Tivo states Searching for signal on this %s Channel. Replace the antenna with an adjustable knob type kind first, then try the FM trap, if that doesn't work, try an amp. Get a VHF/UHF amp, if that don't work, try the antronix brand amp +15 made for digital cable.
 
I can see the Senior Road towers from my front yard, but KTXH is a tough get on every TV in my house. Maybe it's shooting over the top of my head...

I also sometimes have trouble getting channel 8.
 
johndavis said:
I can see the Senior Road towers from my front yard, but KTXH is a tough get on every TV in my house. Maybe it's shooting over the top of my head...

I also sometimes have trouble getting channel 8.

Or the signal is too strong. I should have back in the day bought an attenuator to lower the signal received from Channel 2 KPRC, and quite possibly an A/B switch to use just for Channel Two.
 
johndavis said:
I can see the Senior Road towers from my front yard, but KTXH is a tough get on every TV in my house. Maybe it's shooting over the top of my head...

I also sometimes have trouble getting channel 8.

I think willdav713 is probably on the right track -- the signals are *too strong*.

If your antenna has collapsable "ears" you might try making them *shorter*. You might try, just for the heck of it, a *poorer* antenna. I've seen paper clips distributed as TV antennas as a joke, but if you're that close to the towers a paper clip might actually work.

At that location I can almost guarantee an amplified antenna is going to have problems.
 
Keep in mind that Johndavis wasn't the OP. The two of them may be having totally different problems with KTXH.

Also, on RF 19, rabbit ears are unlikely to be KTXH's antenna. Johndavis should use a simple UHF loop. Of course, rabbit ears + a loop are often sold together as a VHF/UHF combo antenna. That would be fine as long as there's no amp. (He could adjust the rabbit ears to try to improve channel 8 and the loop to try to improve KTXH.)

For the OP, his problem could be multipath. If the drop-outs are worse when the wind is blowing, it's probably multipath reflections from blowing tree limbs. If so he may need a more directional antenna. (Of course, directional antennas have higher gain; if he's also close to the towers, he may need to attenuate the signal from a more directional antenna.)
 
For the record, I'm using rabbit ears with a UHF loop. No amplifier.

And as a joke, I tried a paper clip once. :)

I think the most frustrating thing about DTV is you have to get a signal when you scan to tune it in, but if you have to rotate the antenna in one direction to get station x and another direction to get station y you'll have trouble getting both strong enough just to have it stored in the TV's memory. I think that's part of the problem that I have with KTXH and KUHT (and some of the low powers, too). Even when you're close enough for the strobes to reflect on the house, TV has always been a directional beast, and most modern TVs assume that you have everything at full strength when you set them up. In trying to make things simple, things become complicated.
 
johndavis said:
I think the most frustrating thing about DTV is you have to get a signal when you scan to tune it in, but if you have to rotate the antenna in one direction to get station x and another direction to get station y you'll have trouble getting both strong enough just to have it stored in the TV's memory.

I finally solved that problem by using two antennas-- a small one for the locals and a larger antenna for the distant signals and Y-ing them together with a good quality antenna splitter. No more rotating the antenna and I can scan all stations into the receiver at the same time.
 
johndavis said:
I think the most frustrating thing about DTV is you have to get a signal when you scan to tune it in, but if you have to rotate the antenna in one direction to get station x and another direction to get station y you'll have trouble getting both strong enough just to have it stored in the TV's memory. I think that's part of the problem that I have with KTXH and KUHT (and some of the low powers, too). Even when you're close enough for the strobes to reflect on the house, TV has always been a directional beast, and most modern TVs assume that you have everything at full strength when you set them up. In trying to make things simple, things become complicated.

Yes; the channel scan process in many TVs pretty much sucks.

Some have an "add channels" scan: you can point the antenna one way, do your scan, then point it another way, and do the "add channels" scan, and it won't erase what you scanned in the first time. Others have a manual add function where you can add individual channels after the initial scan. (You have to know the RF channel number to add it, though.) But many have neither.

Another issue is that you usually need a good enough signal for a lock just to get a signal strength reading. So if the signal is too weak to lock, you have no clue how to point your antenna to fix it! At least with analog, even a screen too snowy to watch would still let you know whether you were making the situation better or worse.

All things considered I think DTV is way better than analog, but getting it working can certainly be an exercise in frustration.
 
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