By the way, I have heard you mentioned on the scanner guys youtube broadcasts. Anything you can think of that might solve this problem I would appreciate it. I called Uniden but they don't let you talk to anyone in tech support. Your only option is to send in the scanner.
SDS100/SDS200: SDS 100 Analog Reception Problem
- Thread starter KM6GO
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I still think this might be a programming issue, not a defective scanner. I have both an SDS100, as well as the SDS200, plus both the 436HP & 536HP scanners.
I would suggest that you export your Favorites list, & let us take a look, just in case something there needs to be addressed.
Export the file:
To do that, click on the drop-down File menu in Sentinel.
Select "Export to hpe file (Favorites lists)
Sentinel will generate a pop-up window with all your lists displayed. Pick the list you want,
Then, you'll get a box for you to choose which systems to export. Make sure all of them are checked, & press OK to proceed.
Sentinel will generate the *.hpe file and give you the option where to save it. (The default name will be that of the source Favorites list, but you can, instead, use a different name.) Note where the file is being saved. (The default is usually the Documents folder, but you can save elsewhere if you want.)
Once your file is saved, open Windows Explorer (called File Explorer on some Windows versions).
Find your saved file.
You want to compress it to a Zip file. You cannot attach an hpe file to a post, but you can do that with a Zip file. (If you don't see the 'Compress' choice, you should see, instead, "Send To". Use that, which will pop-out a menu on where to send it. One of the options will be to compress the file. Use that.)
Once you have the Zip file created, you can attach it to a post. Then we can open it & see what might need changes or adjustments.
If you have the same frequency programmed on two different lists, please export both of them.
If you have one or more other Vhf frequencies programmed in either of your lists, are you hearing radio traffic on them?
I would suggest that you export your Favorites list, & let us take a look, just in case something there needs to be addressed.
Export the file:
To do that, click on the drop-down File menu in Sentinel.
Select "Export to hpe file (Favorites lists)
Sentinel will generate a pop-up window with all your lists displayed. Pick the list you want,
Then, you'll get a box for you to choose which systems to export. Make sure all of them are checked, & press OK to proceed.
Sentinel will generate the *.hpe file and give you the option where to save it. (The default name will be that of the source Favorites list, but you can, instead, use a different name.) Note where the file is being saved. (The default is usually the Documents folder, but you can save elsewhere if you want.)
Once your file is saved, open Windows Explorer (called File Explorer on some Windows versions).
Find your saved file.
You want to compress it to a Zip file. You cannot attach an hpe file to a post, but you can do that with a Zip file. (If you don't see the 'Compress' choice, you should see, instead, "Send To". Use that, which will pop-out a menu on where to send it. One of the options will be to compress the file. Use that.)
Once you have the Zip file created, you can attach it to a post. Then we can open it & see what might need changes or adjustments.
If you have the same frequency programmed on two different lists, please export both of them.
If you have one or more other Vhf frequencies programmed in either of your lists, are you hearing radio traffic on them?
I have heard nothing on the other frequencies
Yes
Looking at your attached list, I see nothing inherently wrong there. You have the location details in there, so as long as the location you entered for where you are is correct, that frequency would be scanned.
For the FCC licenses in your county, 151.655 is not licensed to the school district. It is licensed for Costco, as well as Harman Management, apparent for drive in restaurant use (from notes on the FCC license).
Of course, if you are hearing something on that frequency on your 125AT, it does not matter (to the scanner) who it is licensed to.
If you have other Vhf-high frequencies, used elsewhere in the county, & are not hearing them on the SDS100 (but are on the 125AT), then it does appear to be a fault with the scanner. IFX setting and filters can be useful in reducing, if not actually neutralizing, interference on that frequency. The 125AT does not have filter settings, and I doubt it can utilize the IFX feature of later model scanners such as the SDS100. Can you receive other frequency bands (like the Uhf and the 700/800MHz used by many trunked systems), or is it deaf on just about everything?
You've already tried swapping antennas between the two scanners, which apparently made no difference; you still cannot hear that frequency on the SDS100. That rules out an antenna issue. (I presume you are using the SMA->BNC adapter, that came with the scanner, to be able to use the antenna from the 125AT on your SDS100.)
Is your SDS100 fairly new, or is it an earlier production model, built in 2018 or perhaps 2019, when the cold solder joint defect raised havoc with the SDS100 series? (See this Wiki article on how to determine the year your scanner was manufactured.)
Hi, I just purchased the scanner a few months ago so I am guessing it is a new version. I manually entered 150.860 and 151.460 and it receives transmissions on both of those frequencies. Those are on either side of the one I am having the problem with.
Hi I now have 152.720, 150.860, and 151.460 and it receives fine on all of those!
Did you purchase that scanner "new in box"? Or was it previously owned by someone else? I would still recommend verifying the build date using the instructions on the Wiki page link I noted above.
If the scanner is receiving Vhf frequencies on "either side" of the one we're discussing, then we're headed back to some sort of programming issue. As I mentioned earlier, the school district is not licensed for that frequency. But your 125AT is programmed exactly as the database listing? 151.655, DPL 351? And you're sure that it's the county school buses you're hearing on the 125AT?
On your SDS100, try setting that frequency to "search" for the PL/DPL in use.
In Sentinel, it would look like this:
If you hear it using that, then the display will be flashing the PL tone or DCS (aka DPL) that it's seeing. I think, just for giggles, set the modulation to "Auto" instead of NFM.
The other frequencies that you've now tried, are they on the same Favorites list as 151.655, or a different one. Also, are you hearing 152.375? which is on the same list as 151.655? How about the Uhf frequency on the same list as 151.655: 452.675 for the Modesto Area Express?
I've seen the previous comments above, where some are saying that the SDS scanners have trouble with analog frequencies. I'm not seeing that. While the use of non-trunked Vhf-high frequencies is declining here in my metro area (most every public safety agency is headed for one of the local trunked systems using 700 & 800 MHz frequencies), I have no trouble with the ones that I "should" be able to hear. Every 6 to 8 weeks, I take a regional trip to visit a long time friend who lives a little over 100 miles west of me in a rural area. Just about everyone in her area still uses Vhf. While some of the Sheriff's offices are using Vhf-high digital channels, just about all of the many volunteer fire departments are still analolg on Vhf-high. There, again, I'm not 'missing' them on the SDS100, only hearing them only on one of the other scanners I have with me. (Besides the SDS, I usually take one of my 436HPs, and often a third unit, such as a 396XT.)
Okay everyone I found the problem but you won't believe it! I set up my SDR to the frequency and noticed that he main part of the signal was not centered. So I changed the frequency on the SDS-100 to 161.650 and now it works perfect!
That’s great. A solution that’s simple and works.
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Yes.
iggywfd
Member
you should call Scott at Scanner Master, he knows all and can help...or anyone else there, they are my go to for questions
ecps92
Member
Puzzled as you say you change it from 151 mHz to 161 mhz?? Big change in frequency
I suspect that's a typo. No licenses for the OPs county, for anybody, on 161.6500
ecps92
Member
have you tried 151.6475 which is a valid FCC allocation ??? where-as 151.6500 is not, but 151.6550 is valid
ecps92
Member
Around RR it pays best to not assume
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