Mike: Thanks for the HW-8 info. I looked at the HW-8 schematic and they
shift the VFO via a diode/capacitor triggered by the relay voltage. That's
perfect for the Power Mite. I'll give it a try. The HW-7 is like the
PM...No cw offset. This reminds me of the National NCX-3 I tried many years
ago. No offset or RIT made it almost impossible to use. 73 Steve n4LQ
On Tue, May 2, 2017 at 11:39 PM, Mike Bryce <prosolar@sssnet.com> wrote:
> On the HW-8, a direct conversion transceiver, heath instructed the
> operator to tune from the high side down. In other words start at 7.1 and
> tune lower in freq, keeping the receiver on the high side of the bandwidth.
>
> that way when a station answered, it would be on the low side, but
> completely copyable.
>
> There was a slight offset between tx/rx because heath allowed the VFO to
> shift a bit in tx. The actual shift depends on the band
>
>
> Mike, WB8VGE
> SunLight Energy Systems
> The Heathkit Shop
> http://www.theheathkitshop.com/
> J e e p
> o|||||||o
>
> > On May 2, 2017, at 11:21 PM, Steve Berg <wa9jml@frontier.com> wrote:
> >
> > This sounds a lot like my Heath HW-7. It has a bit of an offset, but
> not much of one. It is also a direct conversion rig.
> >
> > Steve WA9JML
> >
> >
> > On 5/2/2017 7:30 PM, Steve Ellington wrote:
> >> I'm playing with a PM3A and noticed there is no CW offset. There's
> nothing
> >> mentioned in the "manual" and the VFO has no means of shifting frequency
> >> when the key is down. This is a mystery since without this feature,
> anyone
> >> coming back to my CQ will be zero beat and couldn't be heard. I have
> done
> >> some Googling. Offset and Powermite don't seem to be used together.
> >> I guess I could rig up a varicap to do the the job. Does anyone have any
> >> experience with this rig?
> >> Note: I am not using crystals nor does it have any xtal jack. I'm using
> the
> >> same VFO for xmt and rx.
> >>
> >> Shiftless in Charlotte
> >>
> >> Steve N4LQ
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