hi any help please best filter settings on sds 100 especially uhf scanner initial setting and then individual deprartments groups etc im working on it but still get high squelch noise levels interference and hard to hear transmissions .
Mostly, it’s on you to identify where the noise is generated. It could be a household device or a bad transformer on a telephone pole down the street. You can do the following ONLY if you know what you are doing-if there’s any doubt in your mind, do not follow what I write.beyond all the great answers any other way to cut out uhf noise interference?
As Ubbe/ pointed out, the filters apparently have nothing to do with correcting simulcast issues, which dashes the assumptions I have made concerning why Uniden had released the filter settings to the end users. (Uniden may have given us the filters in an effort to appease those who were suffering from simulcast but that’s another story, more about marketing than correcting an issue. All that I wrote was assumed to be correct because most all of the threads relating to Uniden allowing us to use them (at the time they were released) came from those experiencing simulcast issues. And since there was no posts that I saw which discounted that, I ran with it as gospel. Sorry for the misinformation. And thanks to Ubbe/ for correcting my miss-speak.Mostly, it’s on you to identify where the noise is generated. It could be a household device or a bad transformer on a telephone pole down the street. You can do the following ONLY if you know what you are doing-if there’s any doubt in your mind, do not follow what I write.
If you have a battery powered scanner you might try turning off the main at your circuit breaker panel. This cuts off all power to the house so first be sure there’s nothing that absolutely needs power all the time, (other than clocks on your stove or oven) or devices that need a manual reset and won’t resume normal operation until that is done. If the noise goes away, it’s something in your house that’s causing the noise. You can then turn the main back on and start turning off individual circuit breakers in an effort to narrow down where the offending device making the noise might reside. If that doesn’t do it you could take a walk away from your house and see where the noise level is greatest. It may be a transformer on a pole or the guy next door, a good reason to remain on a friendly basis with your neighbors!
If you live next door or in close proximity to commercial businesses they may be the cause.
If you live in an apartment complex or a duplex home that only has one electrical panel, don’t go turning off ANY power until you check with them, ALL who may be affected by a power outage caused by you… there are medical devices such as dialysis machines that, when running, need to keep running. (The device may or may not have battery backup, or the backup battery may be defunct.)
It’s a crap shoot but without the proper testing gear at least it’s a start. Your local utility company may have a free service where they send out an investigator if you suspect the noise is coming from the power lines.
Mike, I expect you refer to only RR posts relating to filters when you say “complete”. Apparently I gleaned erroneous information from one of the other forums (possibly Facebook?) as I have found no mention of simulcast in the “complete” compilation you have listed, and mistakenly regarded it as “gospel”, which /Ubbe took issue with (justifiably so) just recently. I was working under the mistaken understanding the filters were released by Uniden in an effort to combat simulcast issues on the SDS series. (I had confused the simulcast issue on the BCDx36HP to also affect the SDS series, and the filters were offerred in an attempt to eliminate/reduce it.) Thanks to /Ubbe I have since discarded that erroneous train of thought!We have a complete - and I do mean complete = writeup on the SDS filters linked in our FAQ viz
for anyone that cares to read through all of the posts and file. As you can see, it has been the subject of much discussion in the past
No, they're clearnjsp... anyone have any ideas are they encrypted?
But uhh...question was asked by the OP who created the thread. Not sure how that's hijacking but I digressPlease don't hijack a thread- it's frowned upon.