[Motorola] Astro Spectra Power Setting

[Eric Lemmon]

Brad,

You got the prize!  Since this radio was in service for several years, I
just assumed that it had already been properly aligned.  Bad assumption, or
maybe the trunking program handles the power settings.  Anyway, I ran the
Astro Global Tuner program and found that the low, medium, and high TX power
softpots were set at zero- which means minimum attenuation.  That accounts
for why the power was 55 watts instead of the rated maximum of 40 watts.
So, I went through the TX power alignment procedure and set the three power
levels to 10, 20, and 40 watts.  Now the radio works as it should.

I guess I'm never too old to learn new things about radios...

73, Eric Lemmon WB6FLY
 

-----Original Message-----
From: motorola-bounces at mailman.qth.net
[mailto:motorola-bounces at mailman.qth.net] On Behalf Of Brad Swanson
Sent: Sunday, July 20, 2008 10:32 AM
To: 'Discussion of equipment manufactured by Motorola'
Subject: RE: [Motorola] Astro Spectra Power Setting

It sounds like both high and low power are set for the same value in the
service and alignment section.

Brad

-----Original Message-----
From: motorola-bounces at mailman.qth.net
[mailto:motorola-bounces at mailman.qth.net] On Behalf Of Eric Lemmon
Sent: Saturday, July 19, 2008 10:43 PM
To: 'Discussion of equipment manufactured by Motorola'
Subject: [Motorola] Astro Spectra Power Setting

I am trying to program an Astro Consolette, Model L99DX+358L, which contains
a Spectra L04QKH9PW7AN radio.  This is an original radio that once was used
on a Government UHF trunked radio system in the 403-430 MHz band.

After cleaning out all of the trunking data, I programmed the radio to
operate on two conventional simplex channels at 425.0000 MHz for testing
purposes.  I programmed one for low power and one for high power.  Despite
repeated checks and re-checks of the programming, I cannot do anything to
alter the RF power output- both channels put out about 52 watts.

I have tried enabling and disabling the talkaround feature, to no avail.
The radio simply ignores the low and high power settings.  I don't have any
experience with Astro Spectra radios.  What am I missing, or doing wrong?
Any suggestions?

73, Eric Lemmon WB6FLY

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