[amsat-bb] Possible trouble with new Icom IC-910H

[Andrew Rich]

Spectrum analyser 

Sdr dongle

Sent from my iPhone

> On 11 Aug 2017, at 10:19 pm, Peter Pauly <ppauly at gmail.com> wrote:
> 
> Yes, and I know the mic works because I can hear it on my handheld when in
> FM mode.
> 
> On Fri, Aug 11, 2017 at 8:18 AM, Matthew Stevens <matthew at mrstevens.net>
> wrote:
> 
>> Are you using the stock mic?
>> 
>> 
>> - Matthew
>> ​ nj4y​
>> 
>> 
>>> On Fri, Aug 11, 2017 at 8:02 AM, Peter Pauly <ppauly at gmail.com> wrote:
>>> 
>>> I bought a used IC-910H on ebay for satellite work an am having a possible
>>> issue with it.
>>> 
>>> I tested the 2m and 70cm transmitter and receiver in FM mode with my
>>> handheld and they work fine. I hooked up a Bird 43 wattmeter with a 50E
>>> slug (50W, 400-1000Mhz) and when I transmit on 440Mhz FM I get an
>>> indication of power output on the meter.  So far so good...
>>> 
>>> Then in USB/LSB mode however, I get no indication on the meter, despite
>>> turning the mic gain up and talking into the mic. I've also up'ed the RF
>>> power with the little knob and that doesn't help. The red light flashes on
>>> the rig (ALC indication) and the meter on the rig moves. I can also hear
>>> distorted audio on my FM handheld (as expected since it's FM and not USB)
>>> but I'm worried about the lack of power indicated on the Bird.  I haven't
>>> been able to try CW yet because I don't have the right sized plug. Should
>>> I
>>> be concerned about the lack of power?
>>> 
>>> Summary:  Bird wattmeter shows power out on FM, but not on USB/LSB.
>>> 
>>> Thanks
>>> 
>>> Peter
>>> W9KG
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>> 
>> 
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
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