Bit Rate Errors - causes and fixes?

Don't need to watch a video. I've done countless experiments myself in various locations, using multiple antennas connected directly to tuners, with and without preamps. My evidence speaks for itself.
The signal-to-noise ratio (S/N) at the tuners demodulator is what matters most. Signal-to-noise ratio is related to what is referred to as ‘noise margin’.

Often a large contributor to S/N is the tuner noise figure. Typical tuners have noise figures that range from ~6 to 8 dB.

So, even with a very short transmission line, adding a preamp can improve overall S/N ratio.

This improvement comes about via the gain of the preamp, along with its lower noise figure. The preamp raises the signal (actually signal plus preamp & other noise) to high enough level that the tuner noise becomes a smaller fractional contributor to total noise.

A larger antenna is better than a smaller antenna and preamp combo, HOWEVER, since a GOOD preamp can lower the overall system noise level, it can help stabilize weaker signals.
 
A larger antenna is better than a smaller antenna and preamp combo, HOWEVER, since a GOOD preamp can lower the overall system noise level, it can help stabilize weaker signals.

Agree. If I could mount a larger, higher antenna, I could probably overcome the signal loss and eliminate the need for the preamp. But since I can't, and I'm limited to an attic install, I don't have a choice.
 
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Agree. If I could mount a larger, higher antenna, I could probably overcome the signal loss and eliminate the need for the preamp. But since I can't, and I'm limited to an attic install, I don't have a choice.
You have your antenna in the attic? So of course a preamp works, because you have a long cable run. That's what a preamp is for. But just saying "You have towers 50 miles away, buy a preamp" is wrong. Every expert agrees there.
 
You missed what I said before about experimenting with other antennas with short cable runs and no splitters; see primestar31 post #21

I'm not saying the preamp is right for every application. You asked about possible fixes for your bitrate errors. I think it couldn't hurt to try the preamp. Worst that happens is you return it 🤷🏻‍♂️
 
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You missed what I said before about experimenting with other antennas with short cable runs and no splitters; see primestar31 post #21

I'm not saying the preamp is right for every application. You asked about possible fixes for your bitrate errors. I think it couldn't hurt to try the preamp. Worst that happens is you return it 🤷🏻‍♂️

Exactly! ;)
 
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If you're 50 miles from the towers, you probably want to integrate a preamp.

You missed what I said before about experimenting with other antennas with short cable runs and no splitters; see primestar31 post #21

I'm not saying the preamp is right for every application. You asked about possible fixes for your bitrate errors. I think it couldn't hurt to try the preamp. Worst that happens is you return it 🤷🏻‍♂️

Except it didn't. You told me simply because I was 50 miles from the towers, I probably needed a preamp.

Again, I'm glad it works for you. You obviously have loss in your line. Again, go read the link I gave from the manufacturer themselves where they say the amp is only for loss in lines. When I told you that, you disagreed, even with that. I don't know what more to say when you don't want to believe the experts you said you needed to hear from first.

<shrug emoji>
 
You missed what I said before about experimenting with other antennas with short cable runs and no splitters; see primestar31 post #21

I'm not saying the preamp is right for every application. You asked about possible fixes for your bitrate errors. I think it couldn't hurt to try the preamp. Worst that happens is you return it 🤷🏻‍♂️
For just a preamp, this is the best one out there that I've tested over the years. So anybody that wants to try JUST a preamp with their present passive antenna, would do well to try this one:

 
For just a preamp, this is the best one out there that I've tested over the years. So anybody that wants to try JUST a preamp with their present passive antenna, would do well to try this one:


Good info. If my CM7777HD ever craps out, I'll try this one :)
 
So when I was significantly younger than I am now, living with my parents in the fringes (more than 50 miles from any TV station), I used to have an outdoor antenna in my bedroom that I could reposition and reorient without screwing up the viewing of everyone else in the house. The coax run was definitely not long on that one.

It was significantly less effective without a pre amp. The amp definitely made a difference, and I received stations and watched shows that would have been impossible without it.

I'm not entirely sure why the OP is so allergic to the idea of even testing one out. It should be pretty easy to buy one, open carefully, test, and if it doesn't help, pack it back up and send it back.

If there's anything I've learned in 20+ years of tinkering, it's that TV reception is as much an art as it is a science. A lot of my successful reception setups have depended a lot more on trial and error than one would think.

- Trip