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Problem between ASTRO SABER and XTS3000
Posted: Sat Jan 13, 2007 9:38 am
by cgroftmc
I am trying to set up two radios AS and XTS to communicate. I have ASTRO enabled on rx and tx on both radios as well as NAC 293 and digital CSQ. Talk group and signalling are disabled. I only get digital noise on either radio when recieving. I have checked everything that I can think of and compared the settings between the two radios. Any insight would be helpful. Both radios are R7.XXX and DSP 8.XXX. Thanks!!!
Craig
Posted: Sat Jan 13, 2007 9:52 am
by Pj
What are the flashcodes?
Posted: Sat Jan 13, 2007 10:03 am
by cgroftmc
XTS 580001-000000-0
AS 100001-000000-7
Posted: Sat Jan 13, 2007 10:31 am
by MRFLASHPORT
cgroftmc,
Are both Radio's set to either 2.5 or 12.5 khz?
Posted: Sat Jan 13, 2007 12:09 pm
by cgroftmc
Under the TX Options screen the channel spacing is set to 25KHZ. Is this the setting that you are referring to?
Craig
Re: Problem between ASTRO SABER and XTS3000
Posted: Sat Jan 13, 2007 1:59 pm
by txshooter
cgroftmc wrote:I am trying to set up two radios AS and XTS to communicate. I have ASTRO enabled on rx and tx on both radios as well as NAC 293 and digital CSQ. Talk group and signalling are disabled. I only get digital noise on either radio when recieving. I have checked everything that I can think of and compared the settings between the two radios. Any insight would be helpful. Both radios are R7.XXX and DSP 8.XXX. Thanks!!!
Craig
More important than the flash....what is the letter prior to the DSP on these radios......
Posted: Sat Jan 13, 2007 2:42 pm
by cgroftmc
The XTS is a N. The AS is an A.
Craig
Posted: Sat Jan 13, 2007 2:45 pm
by akardam
That's the problem right there. "A" series DSP's are analog only.
Posted: Sat Jan 13, 2007 2:46 pm
by cgroftmc
The XTS is a N. The AS is an A.
"A" means analog only, but the AS is transmitting digital. I can hear the data stream on my scanner.
Hack Job???
Craig
Posted: Sat Jan 13, 2007 3:00 pm
by tvsjr
A does mean analog only. What is the full firmware and DSP version of the Astro Saber? I wonder if someone's dumped an IMBE flashcode into a VSELP radio.
Digital Flash
Posted: Sat Jan 13, 2007 3:01 pm
by txshooter
cgroftmc wrote:The XTS is a N. The AS is an A.
"A" means analog only, but the AS is transmitting digital. I can hear the data stream on my scanner.
Hack Job???
Craig
A radio can be given a digital flash either legitimatey or by other means and not have the firmware capable of correctly recieving the digital signal. That is the problem you are having with that radio.
Posted: Sat Jan 13, 2007 3:02 pm
by Hightower
Sounds like one of the radios is horibly out of alignment.
I bet they talk to each other in analog just fine
IMBE requires very close alignment for it to work. IMBE deviation is something like 2.83khz. If off by a few hundredths, can cause problems.
If you have a digital BCD396/996T, try adjusting the scanners "P-25 fine tune" up/down while talking IMBE. If you can hear at least some audio (even extremly choppy audio) while adjusting the fine tune on the scanner, thats a dead give-away that IMBE radio in question is out of alignment something fierce
Posted: Sat Jan 13, 2007 3:17 pm
by RESCUE161
"Analog only" radios ('A' in the DSP) will TX IMBE just fine, but they will not decode IMBE at all no matter how much alignment is done on them. You need a firmware upgrade, not a frankenflash upgrade, but a true upgrade.
Posted: Sat Jan 13, 2007 3:55 pm
by cgroftmc
Thanks all for the help.
Craig
Posted: Sat Jan 13, 2007 6:01 pm
by MattSR
RESCUE161 wrote:"Analog only" radios ('A' in the DSP) will TX IMBE just fine, but they will not decode IMBE at all no matter how much alignment is done on them. You need a firmware upgrade, not a frankenflash upgrade, but a true upgrade.
Really! Thats very interesting to know - I had just assumed that the A firmware had all of the IMBE software removed for licensing reasons.