PSR-500 and PSR-600 Pre Release

[WayneH]

Whatr is MPT 1327 Trunking?

Check out the RR Wiki here. Tons of info on the Forums search and also Google.

Simply, it's a digital trunking format utilizing digital voice TDMA'd on a traffic channel to produce multiple conversations. It's used heavily outside of the US.

 

[pappy1]

Thanks, Wayne h

 

[slicerwizard]

Check out the RR Wiki here. Tons of info on the Forums search and also Google.

Simply, it's a digital trunking format utilizing digital voice TDMA'd on a traffic channel to produce multiple conversations. It's used heavily outside of the US.

I thought it was trunking system with a 1200 bps (IIRC) control channel and mainly analog voice channels?

 

[rescue161]

I think Wayne was thinking of Tetra.

 

[b52hbuff]

This godsend comes immediately to mind.

It isn't controlled by the authoritarian Joe M, mch, Voyager, NCC74656_USS_Voyager, or whatever screen name he chooses to go by at that particular moment. I'd say that is a DEFINITE advantage! One worth cheering about, even...!

Wow if this isn't the pot calling the kettle black.

I will say that I've never had a problem with any of the list Joe has run.

 

[wolter]

Wow if this isn't the pot calling the kettle black.

There are numerous messages in his forums that suggest otherwise. But, we are not going to get into that here because it has nothing to do with the subject of this thread. Contact me privately if you wish to continue.

 

[loumaag]

First:

Wow if this isn't the pot calling the kettle black.

What is that supposed to mean? And what on earth does it have to do with the subject of this thread, the PSR-500 & 600...? Focus on the subject.

Then Edited version:

There are numerous messages in his forums that suggest otherwise. But, we are not going to get into that here because it has nothing to do with the subject of this thread. Contact me privately if you wish to continue.

Please take your own advice and stick to the subject at hand, which is not an opinion of others, but rather the PSR-500 & 600. Further diversions from the subject at hand (by anyone) will be summarily removed without comment.

 

[FireRescueMedic11]

is there a spec sheet for this scanner?, i cant get anything on google

 

[safetyobc]

Check the Wiki

 

[KB4REA]

It would be nice to see a quality belt clip that could be completely removed, leaving little or no parts sticking out on the back. That would be great for everyone.

(I'd be much happier, for example, if my 396 didn't have that mount on it!).

If you're not aware, I have the 330T and was able to remove completely the belt clip and it's mounting piece off the back of the scanner. Makes it real thin. Like you say, it is great for everyone, just don't lose the screw like I almost did.

If Gre could implement something similar that'd be great. I have a feeling not this time around.

BTW, great idea, Matt, about clipping the scanner to the sun visor in the car. Didn't think of that.

 

[iMONITOR]

If you're not aware, I have the 330T and was able to remove completely the belt clip and it's mounting piece off the back of the scanner. Makes it real thin. Like you say, it is great for everyone, just don't lose the screw like I almost did.

If Gre could implement something similar that'd be great. I have a feeling not this time around.

The belt clip is easy to remove from GRE's PRO-96. Just two small screws. This leaves it almost flat on the back.

 

[Wayne]

TGID decode?

While the specs certainly look impressive for the PSR600, I have seen no mention as to whether it can decode conventional P25 talk groups. As there are 4096 possible NAC's, there are also 65535 possible talk group id's...

Wayne

 

[emt331000]

What do you mean by "conventional P25 talk groups"?

 

[b52hbuff]

Any idea if it retains reverse tone decode?

Even though I'm a big Uniden fan, this feature certainly does make monitoring much more enjoyable....

 

[Wayne]

What do you mean by "conventional P25 talk groups"?

The P25 standard calls for many more voice/data options than analog. The default talk group ID for most radio manufacturer's is 0001. However, a programmer has the option of programming a unique 4 didgit TGID using 0-9 and A-F (thus 65535 possible combinations) to separate traffic on the same frequency using the same NAC but different talk group id's. For instance, a user could be licensed for one frequency but require say five "channels". So, the following scheme could be utilized;

Ch 1, 464.550, NAC 001, TGID 12AF
Ch 2, 464.550, NAC 001, TGID 6D3F
Ch 3, 464.550, NAC 001, TGID BEAF
Ch 4, 464.550, NAC 001, TGID 1234
Ch 5, 464.550, NAC 001, TGID ABCD

If the scanner you had could decode NAC's but not TGID's, you would hear all the traffic for channels 1-5 at the same time and have no way to "filter" or separate the individual channels as set up above.

Wayne

 

[loumaag]

The P25 standard calls for many more voice/data options than analog. The default talk group ID for most radio manufacturer's is 0001. However, a programmer has the option of programming a unique 4 didgit TGID using 0-9 and A-F (thus 65535 possible combinations) to separate traffic on the same frequency using the same NAC but different talk group id's. For instance, a user could be licensed for one frequency but require say five "channels". So, the following scheme could be utilized;

Ch 1, 464.550, NAC 001, TGID 12AF
Ch 2, 464.550, NAC 001, TGID 6D3F
Ch 3, 464.550, NAC 001, TGID BEAF
Ch 4, 464.550, NAC 001, TGID 1234
Ch 5, 464.550, NAC 001, TGID ABCD

If the scanner you had could decode NAC's but not TGID's, you would hear all the traffic for channels 1-5 at the same time and have no way to "filter" or separate the individual channels as set up above.

Wayne

Just to expand on the above, while that is true, it is not quite the same as TG's on a trunked system. In the above scenario, only one TG at a time can occupy the channel because obviously there is only one frequency. So although you would hear all the channels on your scanner (assuming no TG ability) you will not hear "all the traffic for channels 1-5 at the same time" as only one "channel" can occupy the frequency at a time.

 

[WayneH]

Conventional P25 talkgroups are used very rarely in most normal radio communications. There may be a few amateur radio enthusiasts who use it, which would fall in the very small minority of users of TGs, so it really doesn't generate the need.....yet.

From what I've monitored with a Service Monitor on Public Safety and Federal radio I have seen zero use of the TG option.

 

[yaesumofo]

Same here, I was also hoping for an expandable memory system. a trans flash slot would do nicely. that combined with the dual receivers would allow for the ability to record one channel/talk group/or trunked system while monitoring another.
What about diversity reception....this would be great for the hand held user while mobile...

They could have done so much more.. I guess we will have to look to Uniden for some of these features. Now that uniden has fired their shot, and the standard has been set so low, I have a funny feeling that uniden will NOT be forced to work that hard to best this radio. Too Bad for all of us.
Yaesumofo

Nice evolution of the existing Pro96.

I'll probably buy one when it comes out.... but I'm not nearly as excited as most of the folks who seem to be posting. I was hoping for REVOLUTION not EVOLUTION. I was hoping for dual-receive (for TG prioritization for one system or receiving two separate channels simultaneously), MUCH smaller form factor for the handheld along with waterproof construction, and MUCH larger display and detachable faceplate for the mobile. And we don't really know about either the sensitivity or (just as important) the selectivity, do we?

If you ask me, the scanner folks need to start thinking outside the "scanner" box, look at what's going on in the ham xceiver markets (AT LEAST), and get with some serious innovative engineering.

One plus... better than no new radio. But... ho hum for me... What is it that I'm missing?

de Peter K1PGV

 

[emt331000]

They could have done so much more.. I guess we will have to look to Uniden for some of these features. Now that uniden has fired their shot, and the standard has been set so low, I have a funny feeling that uniden will NOT be forced to work that hard to best this radio. Too Bad for all of us.
Yaesumofo

Except for how Uniden motorboats on P25. I'm looking forward to these GRE models simply for that reason.

 

[Quint6]

backlight

Does the
GRE 500/600 have different color back lights like the Uniden 996 that has Green & Red
it would be cool if the 500/600 have a choice of
Blue/Green/Red would awesome