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  #41 (permalink)  
Old 06-29-2018, 2:34 PM
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New release firmware is out for the SDS100.
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  #42 (permalink)  
Old 07-02-2018, 10:40 AM
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Moved the radio to a spot on my desk where reception for the NC VIPER sites was improved - still only seeing about -105 dBm.... Then, decided to plug it in before the battery dies.... immediately get the LOW USB BUS VOLTAGE error ... I just can't seem to win with this thing.

Switched from a hub to a direct laptop port (same cable) - so far, so good on power but since "touching" the radio (while trying to maintain position), reception dropped off again.... even back onto battery power.... very finicky.

EDIT: after listening a bit on battery, I carefully plugged in the USB cable (without moving the radio) - lost reception again. Noise values in the 5 digits range... remove the USB cable from the radio - noise values in 3 digit and reception returns.
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Last edited by troymail; 07-02-2018 at 11:06 AM..
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  #43 (permalink)  
Old 07-02-2018, 11:21 AM
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sounds like you've got a noisy USB power source
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  #44 (permalink)  
Old 07-02-2018, 11:26 AM
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Quote:
Originally Posted by troymail View Post
Moved the radio to a spot on my desk where reception for the NC VIPER sites was improved - still only seeing about -105 dBm.... Then, decided to plug it in before the battery dies.... immediately get the LOW USB BUS VOLTAGE error ... I just can't seem to win with this thing.

Switched from a hub to a direct laptop port (same cable) - so far, so good on power but since "touching" the radio (while trying to maintain position), reception dropped off again.... even back onto battery power.... very finicky.

EDIT: after listening a bit on battery, I carefully plugged in the USB cable (without moving the radio) - lost reception again. Noise values in the 5 digits range... remove the USB cable from the radio - noise values in 3 digit and reception returns.
Your "hub" probably can't supply the necessary current and I agree on the noisy power source.
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  #45 (permalink)  
Old 07-02-2018, 11:33 AM
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Quote:
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EDIT: after listening a bit on battery, I carefully plugged in the USB cable (without moving the radio) - lost reception again. Noise values in the 5 digits range... remove the USB cable from the radio - noise values in 3 digit and reception returns.
Your USB hub and laptop can't handle the current required, and are generating enough RFI to make you lose signal. RFI increases when you overload a switching power supply.

Try an AC extension cord, and the factory USB adapter and cable.
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  #46 (permalink)  
Old 07-03-2018, 8:53 AM
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Doing some testing with the SDS-100 connected to the same outdoor antenna my 536 is usually connected to ...

The 536 - using that same antenna - does pretty well receiving VIPER.....

The SDS-100 - not so much... seeing lots of initially clipped transmissions and at times, hearing transmissions on other radios, the SDS is silent (occasionally showing it stopped on the talkgroup but with no audio - even during longer transmissions).
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  #47 (permalink)  
Old 08-08-2018, 4:30 PM
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Well, my loaner SDS100 was returned to it's owner this week.... took my first road trip today since sending it back - had the TRX-1, TRX-2, G5, and 436 with me... first time in a while I came home without a single heat or power issue...

On a more serious note - a user asked me yesterday of my opinion of the SDS100... basically, it you've been fighting with simulcast on other scanners and haven't made the leap to a Unication, you'll probably like the SDS-100 (even though lots of folks tell me their 436 doesn't just as well).

For most other things, if you really want a Uniden, a 436 will probably do just fine.

The only other reason(s) I can see purchasing one are:

- it does something that my existing scanner doesn't (like P25 Phase 2 or recording, etc.)

- "just gotta have" the latest
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  #48 (permalink)  
Old 08-29-2018, 4:27 AM
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Older thread but I have an SDS100 that I'm using in Craven County (New Bern) and I would say it is exceeding my expectations. Running latest Beta Firmware.

Zip Code / Full Database operation is yanking in so much stuff it takes forever to make a circle. Set Sentinel up to pull in New Bern Public Safety, VIPER (with 15 mile range), and Craven County Analog. That is literally everything that I care about.

Recently took it to Yuma AZ and Simulcast performance is exceptional. Also took it to Pax River Maryland more recently and it performed like a champ there as well.

Put together a GPS puck which is been serving me well also.

Love my SDS100
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  #49 (permalink)  
Old 08-29-2018, 11:12 AM
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If these weren't so expensive, I might consider selling my 436HP and buying the SDS100. However, on the Forsyth County TRS, I have no problems with simulcast distortion anywhere that I have been in the county. It must be a very well-designed system. However, while at the Huntsville hamfest, I used the 436 on the AFRN Huntsville Simulcast and it suffered from bad simulcast distortion throughout many parts of the city.

If I lived somewhere with the distortion problem, I would probably look into replacing the 436HP, but for the time being at least, there are no problems with my local systems.

Last edited by IcomIcR20; 08-29-2018 at 11:16 AM..
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