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

Peter Pauly ppauly at gmail.com
Fri Aug 11 12:28:58 UTC 2017

I do have a little USB SDR. I plan hook that up tonight to see if I can see
an indication of signal. I don't want to furiously try to contact someone
via satellite and find out I'm not putting out any power.

I've never owned this rig until a couple days ago so there's always a
possibility I'm doing something wrong.

On Fri, Aug 11, 2017 at 8:23 AM, Andrew Rich <vk4tec at internode.on.net>

> Peter are you speaking loudly
> The energy in an fm envelope is way larger than a side band transmission
> The fact that your reaching an alc level seems to indicate the radio is
> doing its job
> Pity u don't have USB rx
> Do you have a software defined radios ?
> Andrew
> Sent from my iPhone
> > On 11 Aug 2017, at 10:02 pm, 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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