SDS100 Prerelease Discussion

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sibbley

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How well does it TRUNK DMR and NXDN?

Have my TRX-2 and DSD+ running the same site on an NXDN system right now. DSD+ is set up to trunk track. Hearing the same transmissions about the same time. My TRX-1 can keep up with the 436HP on the same Con+ system.
 

eorange

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So far, in multiple environments on multiple systems, the SDS100 has performed as good or better than either Unication pagers or duty radios, sitting side by side.
Now that's a video you should post, since Unication is the current gold standard for LSM decode. I monitor Ohio MARCS which is LSM hell in most parts of NE Ohio, and I get nothing less than 100% perfect decode on my G4, even when mobile driving across 2 counties. I also get awesome weak signal reception when I switch to a Moto 700/800 antenna.

Not bashing...just would be interesting to see and hear.
 

kd8ati

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Upman

Maybe I missed it somewhere but I'm more interested in the how. How were the simulcast issues corrected? In my area and the surrounding counties it is almost nothing but simulcast and we have always been told that in order for a scanner to properly scan simulcast systems the price of the scanner would jump up near the price of a duty radio. Obviously something has changed. I understand its "software defined" but that really don't tell me much. Are you able to be a little specificm
 

SCPD

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Will the SDS100 have a different type of connector for the external GPS? Maybe a mini usb plug in GPS add on?
 

Voyager

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In many cases, better than my Uniden.... 100% better on NXDN.

The x36 can't hear anything - the Whistler can hear it just fine....

That's because the TRX doesn't trunk those at all. It scans them conventionally. The user radios won't monitor conventional dmr in trunked mode either.

But I have to give you credit for finding the ONE case where the TRX will work better - when a trunked system changes to conventional. How many times has that happened in the USA? That may be the only one.
 

troymail

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That's because the TRX doesn't trunk those at all. It scans them conventionally. The user radios won't monitor conventional dmr in trunked mode either.

But I have to give you credit for finding the ONE case where the TRX will work better - when a trunked system changes to conventional. How many times has that happened in the USA? That may be the only one.

Nope - not just one.... try again.
 

Jay911

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UPMan, when you return to this thread I hope you can pick out the questions from within the ever-increasing noise & static of the whiners and complainers, 'cause I have a couple of questions:

1. Antenna - I gather from the owner's manual this is the same old SMA rubber duck antenna that has come with other Uniden handhelds. When you were comparing reception between the 436 and the SDS, were they both using that rubber duck antenna?

2. Any indication if the SDS is picking up signals at a greater "range" than the x36? I guess I'm partly asking about range and partly sensitivity.

3. The material mentions an 8GB card. How big is supported?

4. I assume this is USB again (according to the manual). Is it still USB 1.1 or 2.0 in terms of transfer speeds or can we expect some speed improvement?

I really like the look of the screen in those comparison and performance videos - between that and the manual it appears that a lot of the things people have requested in the display (big for old farts and small for people who want a lot of data, and color for those who like color, and customizable for all) you guys took into consideration. Well done.

Also the battery pack and the water resistance... if people weren't so quick to gripe and moan they'd notice that these are the things that they've put in 'wish list' posts for a number of years. And obviously it's going to cost a few bucks more.

Anyway thanks for all your work and hope my questions don't get lost in the clutter.
 

ShyFlyer

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No. We did not want to adversely affect Jon's supplemental income.

Ok, so that's no on the integrated GPS question. Extremely disappointed, but it's not the end of the world. So what sort of GPS solution are we to expect from the SDS100? The currently available BC-GPSK and it's associated nest of wires, or some sort of "one cord solution?"

If there isn't a "one cord solution" planned for the SDS, I'm gonna pass. Having integrated GPS in my 436 is beyond wonderful. I could live with one cord for the GPS.
 

phask

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wx5uif

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Upman

Maybe I missed it somewhere but I'm more interested in the how. How were the simulcast issues corrected? In my area and the surrounding counties it is almost nothing but simulcast and we have always been told that in order for a scanner to properly scan simulcast systems the price of the scanner would jump up near the price of a duty radio. Obviously something has changed. I understand its "software defined" but that really don't tell me much. Are you able to be a little specificm
They are using the I/Q stream to decode instead of the discriminator.
 

WX4JCW

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well if you read the fact that they are using I/Q like the SDR's LSM issues are eliminated also overall reception should be way better as well, but we need to see a side by side comparison of the SDS100 to a system radio in an LSM environment or a G4/5 to accurately know for sure
 

jonwienke

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Now that's a video you should post, since Unication is the current gold standard for LSM decode. I monitor Ohio MARCS which is LSM hell in most parts of NE Ohio, and I get nothing less than 100% perfect decode on my G4, even when mobile driving across 2 counties.

The teaser videos Upman posted on Youtube have audio from MARCS.
 

jasonhouk

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In many cases, better than my Uniden.... 100% better on NXDN.

I'm working with someone now who is trying to listen to a supposed CON+ system on his x36 and hearing nothing.... Works just fine on my Whistler. Of course, it is probably because someone submitted the "system" as CON+ but we're now seeing it is (or has changed to) straight DMR... The x36 can't hear anything - the Whistler can hear it just fine....
Could you post the recorded audio. I'm s Railfan and will need NXDN support.

Houk

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