ATTN: UPMan

[W2PMX]

I seem to recall dead silence from Uniden on P25 systems too - until they were ready to announce hardware that could decode it. The only big deal now is that they haven't made an announcement on TDMA yet and we're all champing at the bit. But they will. (Their only other choice is to go out of the scanner business, and I don't see that happening.)

 

[GTR8000]

Oh it's inevitable, they will release a TDMA capable scanner at some point. I think the frustration from most is that, TDMA has been around for a year already (as X2-TDMA, not the final Phase II standard) and not a peep from Uniden. Clearly the hardware already exists, the PSR-800 was type accepted nearly a year ago.

 

[GTR8000]

Systems running GTR 8000 linear repeaters are software-upgradable to Phase II. The APX series radios are also software upgradeable to Phase II.

Texas Wide Area Radio Network (TxWARN) is Phase II

Texas Wide Area Radio Network (TxWARN) Project 25 Trunking System, Various, Texas - Scanner Frequencies

 

[mfn002]

Texas Wide Area Radio Network (TxWARN) is Phase II

No, not really. There have been one or two TGs on that system that have been reported as Phase II, but routinely used TGs on that system are Phase I, and will likely remain that way for quite some time to come. I know this because my area uses this system. Now, I am 100+ miles away from Houston, but I travel down that way at least once a month, so this issue is of some importance to me, especially with the Phase II 700 ASTRO system that Houston PD and Houston FD are going to switch to sometime later next year.

 

[GTR8000]

No, not really. There have been one or two TGs on that system that have been reported as Phase II, but routinely used TGs on that system are Phase I, and will likely remain that way for quite some time to come. I know this because my area uses this system. Now, I am 100+ miles away from Houston, but I travel down that way at least once a month, so this issue is of some importance to me, especially with the Phase II 700 ASTRO system that Houston PD and Houston FD are going to switch to sometime later next year.

You're the one who started this thread with the premise that "Harris County's TxWARN P25 sites have had a few Phase II TGs pop up lately", so I'm not sure what the "no, not really" is supposed to mean.

The bottom line is that the infrastructure for TxWARN has been upgraded to Phase II, so whether it's 1 talkgroup or 100 talkgroups operating in Phase II mode, the system itself is indeed a Phase II system that is currently online. If it wasn't, you wouldn't have had any reason to start this thread.

 

[mfn002]

You're the one who started this thread with the premise that "Harris County's TxWARN P25 sites have had a few Phase II TGs pop up lately", so I'm not sure what the "no, not really" is supposed to mean.

The bottom line is that the infrastructure for TxWARN has been upgraded to Phase II, so whether it's 1 talkgroup or 100 talkgroups operating in Phase II mode, the system itself is indeed a Phase II system that is currently online. If it wasn't, you wouldn't have had any reason to start this thread.

In your original post, you gave me the impression that you were assuming that the entire system is using Phase II exclusively, which it isn't. The info posted on the DB page under "system voice" is inaccurate. It should be "Phase I and II".

 

[GTR8000]

No, I understand that it's still primarily operating in Phase I mode, I was just making the point that the system itself is indeed a Phase II system by virtue of the software level the controllers and repeaters are at. Until all the subscriber radios are Phase II capable, the system will continue to fall back to Phase I mode for most talkgroups.

The System Type "Project 25 Phase II (TDMA)" is not inaccurate, it correctly indicates that the system itself is Phase II. All Phase II systems are capable of operating in Phase I mode, that is determined at the talkgroup level, which is explained in the text in the yellow banner "Some talkgroups on this system are using TDMA modulation".

 

[BeerNutz]

I hope something comes along sooner than later, because as soon as the mentioned systems start using Phase II, he's gonna have a lot of people wanting answers*. And no, I am not going to get a PSR800. I would prefer a scanner where you don't need a computer just to change a frequency.

*Mainly wrecker drivers. In the Greater Houston area, law enforcement requests wreckers over the radio.

Pssssst... Using just the radio, frequencies can be stored on the PSR-800 using, Spectrum Sweeper, Service Search or Limit Search.

 

[ssinglet]

Uniden has confirmed that none of their current models support TDMA in any form, nor do they have the requisite hardware to do so, therefore cannot be made TDMA compatible via a firmware update.

X2-TDMA can also be monitored with DSD.

I call this a Uniden BS call.

If the scanner CAN Decode X2-TDMA with DSD then they have the requisite hardware to do so and all that is needed should be a DSP and Firmware upgarde to the scanner

BTW this is just my 2 cents base apon other types of items with major upgrades done by firmware with no modifactions to the hardware.. (BD Players, PS3, Xbox 360)

 

[OCO]

I call this a Uniden BS call.

If the scanner CAN Decode X2-TDMA with DSD then they have the requisite hardware to do so and all that is needed should be a DSP and Firmware upgarde to the scanner

BTW this is just my 2 cents base apon other types of items with major upgrades done by firmware with no modifactions to the hardware.. (BD Players, PS3, Xbox 360)

You might want to do a little more research before calling "BS". The decoding is done in a proprietary chip, licensed from DVSI. Go to DVSI's website and look at the difference between the IMBE and AMBE chips....IF it was a firmware modifiable option, don't you think Uniden, GRE and RS would be offering a for pay upgrade? These scanners are not totally soft defined...:roll:

 

[mike_s104]

I call this a Uniden BS call.

If the scanner CAN Decode X2-TDMA with DSD then they have the requisite hardware to do so and all that is needed should be a DSP and Firmware upgarde to the scanner

BTW this is just my 2 cents base apon other types of items with major upgrades done by firmware with no modifactions to the hardware.. (BD Players, PS3, Xbox 360)

DSD just uses the data stream and decodes using the PC. You can even use an old analog scanner. As old_CJDC_ops stated, you may want to check how these things work before making assumptions.

The game consoles you mentioned have different hardware that are closer to PCs than radios.

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