What is your squelch settings? if those channels sound super quiet, you might be getting a weak signal that has to contend with a high noise floor and the squelch has issues with it.
SDS100/SDS200: Is the SDS100 deaf on the air band?
- Thread starter beaterbox
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ngel
Member
Squelch is set to 3 and I have tried increasing to 6 with same issues reported above
ngel
Member
Stock antenna. My Whistler TRX1 does not have this issue using its stock antenna in the same room. See my video showing the problem. May 17, 2022
Apples to oranges comparison, frankly. They're different beasts, they will perform differently. Does the SDS-100 do the same thing out in the middle of your yard? Does it do the same thing at the airport?
ngel
Member
I’m not here to compare. I would like to use my SDS100 only. I’m trying to see if someone has any suggestions. It picks up very similar to my TRX1 in the air band, however the SDS has that weird open carrier thing in the video.
Icanhearit
Member
Next to never use my SDS100 for airband to have comment.
For BCT15X, which I normally use for airband, one of the two (south a north) fields tower signal is weak than most, when the scanner picked up its talk and done, it frequently remained lock on with jamming noise, I had to turn the knob to let it pass. After swapping the stock antenna with a cheap TV leaf antenna, taped higher to the window with slightly better reception, the issue is gone. squelch remains at 2 or 3 all the time.
These are comparisons. I asked you some questions about your signal pathing and location, you compared it to another unit. They are different devices, one is an I+Q scanner, the other isn't. They will perform differently, drastically in some cases. This may be one of those cases for you.
I would recommend something other than the stock antenna, in your house. I've given you my first line suggestions already, next would be to put a different antenna up and away, preferably outside, and see if it changes it. The high noise floor in that room may be causing issues the SDS can't handle, who knows...I'm not there. Take it outside in your yard and see if it's local to your residence, if it's not..take it to the airport to see if the squelch issue resolves where the noise floor isn't so high.
Trying to help, there's usually no magic button to push for weird situations like this.
Ubbe
Member
What stands out in that video are that the signal are strong but the RSSI never indicates any signal strength, it's just show dashes as if there where no signal at all. Is it showing reasonable RSSI values with other signals and systems?
/Ubbe
mikec10
Member
I will listen to the air band with my sds100 and bc125at. With the stock antenna I get at best a fair reception on either one. I have a discone in my attic which is the 3rd floor and get excellent reception. I have 2 airports which are approx 7 miles from me and am in the flight pattern for many. I also have the air national guard at one of the airports. On the sds100 the rssi readings vary from 50 to 90 with the base antenna and clarity is very clear. Signal strength is usually 4 to 5 bars depending on distance of incoming craft. To me regardless of signal strength if the clarity is clear and strong that is the main thing. I have adjusted the filters and am happy with my setup.
The video shows the user recorded the transmission. I don't believe the SDS series captures the RSSI value in the recording/replay.
ngel
Member
Correct does not show it on a recording. The brief transmission I caught just now shows 99-100 RSI. Seems to be better today when scanner is away from my phone and iPad.
WX9RLT
Top Dawg
Make sure your modulation is on AM only.
Not in auto.
Not in auto.
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