SDS100 Prerelease Discussion

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Unforgiven_AF

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I could have swore Paul said it was against the law to take any money or even to let anyone pre order something that didn’t even have fcc approval yet



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I read that like they were just collecting credit card info and the authorization to charge it when the time comes. No a pay now, get it when it is released. It is probably enough of a distinction to pass muster.
 

WD6ABC

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Does anyone know if the current software for controlling the 436 or 536 work on the SDS 100 ??

THX- (Uniden 996p2, 996Xt)
John
 

jonwienke

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Not yet. ProScan has indicated the SDS100 will eventually be supported, but not until after it is released.
 

trp2525

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FYI if anyone is interested I just received an email today (04-11-2018) from Zip Scanners (https://www.zipscanners.com/) regarding the SDS100 which stated the following:

"As we get more info on the SDS100 we'll keep ya posted.
We will be taking pre orders but need to firm up pricing and ship date.
As soon as we know - you'll know."
 

wm8s

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FYI if anyone is interested I just received an email today (04-11-2018) from Zip Scanners (https://www.zipscanners.com/) regarding the SDS100 which stated the following:

"As we get more info on the SDS100 we'll keep ya posted.
We will be taking pre orders but need to firm up pricing and ship date.
As soon as we know - you'll know."

Looks like their price is going to be hard to beat.

Capture.jpg
 

marksmith

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Does anyone know if the current software for controlling the 436 or 536 work on the SDS 100 ??

THX- (Uniden 996p2, 996Xt)
John
Several times in this thread it was noted that the Sentinel x36 is currently being used to program the systems etc in the test radios, but it has not yet been updated to handle all the sds 100 settings.

Mark
536/436/ws1095/996p2/996xt/325p2/396xt/psr800/396t/HP-1/HP-2 & others
 

iMONITOR

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Has there been any confirmed proof or statement that Uniden has solved the issues associated with monitoring simulcast CQPSK (LSM) P25?

I've yet to see a demo that has convinced me. :confused:
 

WX4JCW

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Has there been any confirmed proof or statement that Uniden has solved the issues associated with monitoring simulcast CQPSK (LSM) P25?

I've yet to see a demo that has convinced me. :confused:



I’m convinced


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Jason WX4JCW
Unication G4, BCD536HP
 

jonwienke

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Side by side video comparing the SDS100 and the 436 monitoring a simulcast system where the 436 gets nothing and the SDS100 gets constant traffic with few or zero garbles or dropouts.

Upman has made at least two claims about the SDS100, specifically that it is significantly better at decoding clear digital audio from weak signals than the 436, and that it will decode clear digital audio comparable to a Motorola system radio in simulcast environments that leaves the 436 mostly silent.

The videos posted are consistent with those claims. One of the Columbus MARCS videos posted has some occasionally choppy audio, but it is not intended to be a simulcast performance demo, it is a weak-signal performance demo--the signal level being received was around -109dBm.
 

iMONITOR

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Side by side video comparing the SDS100 and the 436 monitoring a simulcast system where the 436 gets nothing and the SDS100 gets constant traffic with few or zero garbles or dropouts.

Upman has made at least two claims about the SDS100, specifically that it is significantly better at decoding clear digital audio from weak signals than the 436, and that it will decode clear digital audio comparable to a Motorola system radio in simulcast environments that leaves the 436 mostly silent.

The videos posted are consistent with those claims. One of the Columbus MARCS videos posted has some occasionally choppy audio, but it is not intended to be a simulcast performance demo, it is a weak-signal performance demo--the signal level being received was around -109dBm.

The simulcast problem is seldom due to weak signals, but rather due to numerous strong signals in close proximity on the same frequency.

My 325P2, 996XT, and 996P2 perform at their best when the signals are weak.
 

jonwienke

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The simulcast problem is seldom due to weak signals, but rather due to numerous strong signals in close proximity on the same frequency.

And the videos posted under strong-signal conditions are not choppy.
 

iMONITOR

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And the videos posted under strong-signal conditions are not choppy.

True. But the one I saw the radio is right at the base of the tower of one signal. They still sound a little garbled to me. But are there any other tower sites in the area that could introduce simulcast interference. With only one site in close proximity (very close I might say), of course it would eliminate the interference. Back when the BCDx36HP's were introduced, similar claims were made as I recall.

And I still think my earlier generation Uniden scanners sound clearer than the SDS100 demos I have seen. And I have 9 tower sites on the system I'm monitoring.

I'll make a few recordings and post them for comparison. It will be later today as I have been up all night.
 

jasonhouk

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True. But the one I saw the radio is right at the base of the tower of one signal. They still sound a little garbled to me. But are there any other tower sites in the area that could introduce simulcast interference. With only one site in close proximity (very close I might say), of course it would eliminate the interference. Back when the BCDx36HP's were introduced, similar claims were made as I recall.

And I still think my earlier generation Uniden scanners sound clearer than the SDS100 demos I have seen. And I have 9 tower sites on the system I'm monitoring.

I'll make a few recordings and post them for comparison. It will be later today as I have been up all night.
I was able to have the chance to get the SDS100 side by side a G4. Unfortunately it was not in a simulcast or weak signal environment. There was no reason to video as both were trunking the TGID's they were programmed for fawlessly. This weekend I may get the opportunity to do both side by side on the Ohio MARCS Franklin County Simulcast in which another RR Member has adives me the area we'll be testing in is notorious complicated for most radios. I'll be recording the results.

Houk

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KevinC

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The simulcast problem is seldom due to weak signals, but rather due to numerous strong signals in close proximity on the same frequency.

My 325P2, 996XT, and 996P2 perform at their best when the signals are weak.

And the videos posted under strong-signal conditions are not choppy.

I'm going to get nit-picky, sorry.

The issue isn't weak or strong signal areas, it's multiple sites (or subsites actually) hitting your radio at about the same signal level. Whether they arrive at -103 dBm or -73 dBm doesn't matter, unless you are in full capture of one subsite you'll probably have problems.

Properly engineered systems minimize overlap areas with power, antenna design and launch delays.

Now back to Uniden bashing.
 

ansky

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Has there been any confirmed proof or statement that Uniden has solved the issues associated with monitoring simulcast CQPSK (LSM) P25?

I've yet to see a demo that has convinced me. :confused:

I will not be "convinced" of anything until I have the scanner in my hand, listening to the actual system in my area, from my specific location. I live in New Jersey. Someone posting a video from Ohio or Texas does absolutely nothing for me. Too many variables. These multicast systems are very sensitive to distance, terrain, microscale obstructions and other factors. I will purchase the scanner and try it out for myself in my area. If it doesn't live up to expectations I will send it back. Very simple.
 
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