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Astro Saber 3, 450-512 Range Radio for Amateur use

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ckillian
Posts: 5
Joined: Mon Dec 26, 2005 8:28 pm
What radios do you own?: Astro Sabers, GM300, Syntor

Astro Saber 3, 450-512 Range Radio for Amateur use

Postby ckillian » Wed Dec 21, 2016 5:39 am

All,

I may have screwed up. I recently purchased an Astro Saber, H04SDF9PW7AN, 450-512 mHz handheld.

Using CPS 5.03.0 I set it on a a local repeater. Seems to be deaf.

Question is; is this radio actually suitable for use in the 70 CM amateur band... or can it be made to work?

Thanks all.
Chuck...
WB6YOK

n3obl
Posts: 602
Joined: Tue Mar 26, 2002 4:00 pm

Re: Astro Saber 3, 450-512 Range Radio for Amateur use

Postby n3obl » Fri Dec 23, 2016 1:04 am

It should handle 440mhz with no problem. Sounds like your radio has an issue. needs to start with a tuning with a service monitor to put into alignment.

N4KVE
Posts: 1582
Joined: Wed Apr 02, 2003 10:35 am
What radios do you own?: XTS3000/5000, TRBO, 900MHZ

Re: Astro Saber 3, 450-512 Range Radio for Amateur use

Postby N4KVE » Sat Dec 31, 2016 7:45 am

I do not believe there are any soft pot tuning values for 440 on a 450-512 radio. Are there? GARY

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d119
Posts: 3436
Joined: Tue Mar 19, 2002 4:00 pm

Re: Astro Saber 3, 450-512 Range Radio for Amateur use

Postby d119 » Sun Jan 01, 2017 10:47 am

That's correct - there aren't. However, speaking from VAST experience with the ASTRO Saber UHF-2 operating in the amateur band, I can say that I have *never* experienced a problem doing it.

I agree the OP must have a hardware issue with the radio, or the OOB mod was done incorrectly and has affected some part of the radio's tuning values elsewhere.

Do some testing with the radio in it's rated bandsplit, I bet you'll find you have issues there as well. Once again, I've never come across a unit that wouldn't work in 440.

Then again, in my locale, repeaters are TX high RX low, so the radios are listening from 445-450 and transmitting from 440-445. I cannot speak for the inverse, but I have never heard of any issues.

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motorola_otaku
Posts: 1828
Joined: Tue Jan 13, 2004 7:03 am
What radios do you own?: 2 turntables and a microphone

Re: Astro Saber 3, 450-512 Range Radio for Amateur use

Postby motorola_otaku » Sun Jan 01, 2017 11:35 am

N4KVE wrote:I do not believe there are any soft pot tuning values for 440 on a 450-512 radio. Are there? GARY

There are not, but the RX front end filter alignment can affect OOB receive performance. Been there, done that.

OP, you need to put it on a service monitor and see what it's doing. RX sensitivity should be in the .19-.21 microvolt range throughout the operating range of the radio.
When exposed to Rapid Fire Growth or Thermal Emergency, two things are lost:
1. Ability to use fine motor skills
2. Presence of mind


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