[heathkit] zero beat

[Alan Beck <becka@eastlink.ca>]

Sorry Larry,

Forgot my netiquete.

Alan


On Tue, 2008-27-05 at 15:06 -0400, larry allen wrote:
> If that comment was directed at me, ve3fxq, yes my mod was to create a 
> side tone generator...
> Larry ve3fxq
> 
> ----- Original Message ----- 
> From: "Alan Beck" <becka@eastlink.ca>
> To: "heathkit List Member" <larya@rogers.com>
> Sent: Tuesday, May 27, 2008 1:49 PM
> Subject: [heathkit] zero beat
> 
> 
> > 73,
> >
> > Alan
> >
> > What you really are talking about here is basically a sidetone monitor,
> > in essence.
> >
> > Great idea
> >
> >
> >
> > On Mon, 2008-26-05 at 20:47 -0400, larry allen wrote:
> >> My first transmitter was the dx-60, as well, ... my first receiver was 
> >> the
> >> gr-91... general converage receiver...My second receiver was the
> >> hr-10...My vfo was the hg-10....
> >> When you are adjusting the rf gain, you are as I recall, in effect,
> >> pulling the receiver's tuning slightly...
> >> I would go the other way... set the rf gain to peak and then adjust the 
> >> af
> >> gain appropriately... If the signal is too strong, pull back on the rf
> >> gain but once you find the right setting leave it....
> >> You could also be suffering from a weak tube.... which is allowing the
> >> pulling effect...
> >>
> >> It has been a long time since I used my dx-60 hr-10... mid 60's...
> >> I remember I muted the receiver, gr-91, by installing a potentiometer
> >> between the cathode of the rf tube and ground and adjusted the control 
> >> for
> >> best reception of a very strong signal.. mine...
> >>
> >> It is quite possible I did the same thing with the hr-10.. modifying 
> >> the
> >> front end to make is so insensitive that it could only hear me.. when I
> >> went back to receive the mod was shorted out...
> >>
> >> Larry ve3fxq
> >>
> >> ----- Original Message ----- 
> >> From: "Alan Beck" <becka@eastlink.ca>
> >> To: "heathkit List Member" <larya@rogers.com>
> >> Sent: Monday, May 26, 2008 4:18 PM
> >> Subject: [heathkit] zero beat
> >>
> >>
> >> > OK,
> >> >
> >> > I have a question.
> >> >
> >> > When I was using my DX-60/HR-10 station, I would call someone and 
> >> > then
> >> > shift the BFO to match.
> >> >
> >> > The reason for this was that I could barely  hear my VFO in the RX.
> >> >
> >> > The manual states that to operate the receiver, I have to set the AF 
> >> > to
> >> > 1/4 and use the RF Gain to adjust volume.
> >> >
> >> > However, when I do this, the frequency shifts slightly.
> >> >
> >> > When I key down, I really have a lot of signal that it makes a sort 
> >> > of
> >> > ripping sound and peaks out the meter, one side stronger than the 
> >> > other.
> >> >
> >> > So, I go for the peak on the highest side. When I check the small
> >> > signal, it is way off frequency.
> >> >
> >> > Anyone have a bullet proof technique to do this one.
> >> >
> >> > BTW, I am using a dow-key relay and muting the RX during full 
> >> > transmit
> >> > mode.
> >> >
> >> > Alan
> >> >
> > 
>