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Astro Spectra 800 radio mod to 700 operation

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Jim202
Posts: 3520
Joined: Sun Sep 09, 2001 4:00 pm

Astro Spectra 800 radio mod to 700 operation

Postby Jim202 » Wed Jul 04, 2018 6:55 am

Have looked around and have not found any info on if it is possible to move an Astro Spectra 800 radio to the 700 re banded range.

The radio is a model number T04UJH9PW9AN. Model number says it covers the 806 to 870 range now.

Would like to use it for RX only on a P25 system. Have several of these to play with.

User avatar
Victor Xray
Posts: 841
Joined: Mon Dec 17, 2001 4:00 pm

Re: Astro Spectra 800 radio mod to 700 operation

Postby Victor Xray » Wed Jul 04, 2018 7:23 am

Impossible.

jry
Posts: 354
Joined: Fri Feb 06, 2004 3:14 pm

Re: Astro Spectra 800 radio mod to 700 operation

Postby jry » Thu Jul 05, 2018 6:47 am

for the current price of an 700/800 XTL why bother ?

Karl NVW
Posts: 88
Joined: Wed Sep 03, 2003 7:13 am

Re: Astro Spectra 800 radio mod to 700 operation

Postby Karl NVW » Thu Jul 05, 2018 7:59 am

The synthesizer in the old 800-only drawer is not programmable to 700 MHz channel freqs and spacings, including the mandatory inter-ops. You really do need to acquire an XTL or newer.
Karl - WA8NVW AFA5VB
SHARES + NCS

AD0JA
Posts: 49
Joined: Mon Jun 01, 2015 6:14 pm
What radios do you own?: XTS5000,XTS3000,XPR6350,Jedi

Re: Astro Spectra 800 radio mod to 700 operation

Postby AD0JA » Thu Jul 05, 2018 10:11 am

Same for the ASTRO Saber and XTS3000, you can hex edit the CPS for OOB into 700mhz, but the synthesizer won't lock.

It's better to get an ASTRO25 series radio. They are coming down in price

Jim202
Posts: 3520
Joined: Sun Sep 09, 2001 4:00 pm

Re: Astro Spectra 800 radio mod to 700 operation

Postby Jim202 » Thu Jul 05, 2018 12:10 pm

OK, thanks for the feedback. I was sort of expecting this answer, but deep down just had that slim ray of hope.

I guess I will strip the radios down and scrap the castings to get a few bucks out of the pile of aluminum.

Jim

flyinace09
Posts: 61
Joined: Fri Dec 02, 2005 7:34 pm
What radios do you own?: XTS/XTL5000, AS+, etc.

Re: Astro Spectra 800 radio mod to 700 operation

Postby flyinace09 » Sun Jul 08, 2018 6:55 am

As everyone else said, the pricing is at the part where for an 800 Astro Spectra or XTS3000 I usually gut the controllers/UCMs out of them and toss the chassis/RF boards since they're not worth saving anymore. On the bright side - An XTL5000 with W-series head I've seen as low as $150 and with an O5 head as low as $200... and an XTS5000 or 2500 for around $150-200 as well.


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