Originally Posted by rdgrimes
I found it, but its almost impossible to use.
You have to go into "Manual Channel" setup, where each channel has a "signal strength" and "signal quality". I have no idea what "Signal Quality" is supposed to mean, probably just that the tuner is able to lock and decode. You can see a 60% strength with 100% quality.
the trick here is that the channels are not displayed according to their broadcast channel number. They appear to be listed according to their UHF number. so to find the channels you receive you have to sort through 68 channels looking for them. Anyway it does work.
Yep - see my post yesterday with pictures of those screens, on the previous page.
Signal strength is a measure of the amplitude of the signal effectively. if it was a TV picture, it would be just in raw terms how "bright" it is.
Signal quality is the one you really care about. If it was a TV picture, the Quality would be how "clear" it is.
Quality is aka the Bit Error Rate (BER). After decoding, if there were errors that needed to be corrected (using the redundant and extra copies of the data in the stream - this is built in, much like the error correction in ISO 9660 CDs), it is a count of "how hard" it had to work to recover the signal. As it's a black box it could be the BER either before or after the signal is unpacked - there are different places in the chain that error correction can happen. So without knowing which level it's measuring it's hard to say - but it at least gives an indication.
So, Quality = 100% means it's perfect. Quality = 90% means some errors, but ok. The higher, the more "headroom" you have. You can do the "wet tea towel" test - literally put a wet thin towel over the dish or antenna/aerial which will attenuate the strength of the received signal, and increase the number of errors. The idea is that you simulate "bad conditions" this way (eg aligning a satellite dish) so that the fine adjustments get the best possible signal when it's dropping in and out with small movements. But If you had a booming strong signal that's clear as day, you can't tell which position is the "best" to give you the most headroom in bad conditions.
Over a certain strength it doesn't matter. In many cases you could point a satellite dish at the ground and it would say 100% strength.
It's Quality is the one you care about. Below 90% needs fixing (you will
have problems in heavy rain if it's satellite).
Originally Posted by starrfighter
I can't believe I did something like THAT. Breaking off the tip in the stupid RCA and cannot get it out. If anyone as some extra special sauce trick before I try to replace the RCA female, oh god, please see this and help.
Argh, oh man. Well at least you're on the right website for help - maybe not this thread, but do post over on the AVR threads and someone there may have a clever way to do it.
- wow I thought my backlog was bad. I'm trying to see which of those is your most embarrassing title?