[Lowfer] HP3586C as TX

Thu, 6 Nov 2003 06:31:04 -0500

Dale, Mike

For receive only applications pulling the cable between the tracking
generator and the rear panel, plus terminating the output of the module with
a 50 ohm shielded termination reduces the residual signal to a point well
below the receiver noise floor.

As far as a beacon exciter...I've been using one for lowfer VD for almost
two years now. In my installation I come out of the HP at 0 dBm, attenuate 3
dB, through a K1EL keyed high isolation Analog Devices video switch, amplify
20 dB (available amplifier) and feed a modified Andrews & Ashlock final out
at the loop. GPS disciplined 10 MHz is fed to the reference input.

Also used a 3586C for hifer VD that was on for about a week this summer.
Setup was similar - better high frequency switch and no final amplifier.
Worked well, also. I should probably fire that back up if hifer-ing is going
to become a year round sport!

Jay

----- Original Message ----- 
From: "WE0H" <[email protected]>
To: <[email protected]>
Sent: Wednesday, November 05, 2003 11:49 PM
Subject: RE: [Lowfer] MedFer CO in OR

> Your tracking signal is right where mine is; about 1.5 to 2hz lower than
> displayed frequency. I was going to use mine as an exciter for a beacon.
> Lyle drafted up an interface to key the HP for QRSS or CW.
>
> Mike>WE0H
>
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> On Behalf Of Dale Rice
> Sent: Wednesday, November 05, 2003 10:39 PM
> To: [email protected]
> Subject: Re: [Lowfer] MedFer CO in OR
>
>
> The dim line at 1850 is the HP signal.
>  I would like to know how to turn it off, but I have found it pretty handy
> as a marker. I think pulling the internal link to the rear panel BNC
> attenuates it quite a bit. It would be nice if the amplitude was
adjustable.
> I tuned the HP 10HZ low to look for your signal which is why it shows up
at
> 1860.
>
> Dale R
>
> > That line looks like an HP tracking signal. How do you turn it off on a

> > 3586C???
> >
> > Mike>WE0H
> >
> >
> > -----Original Message-----
> > From: [email protected] [mailto:[email protected]]
> > On Behalf Of [email protected]
> > Sent: Wednesday, November 05, 2003 10:18 PM
> > To: [email protected]
> > Subject: Re: [Lowfer] MedFer CO in OR
> >
> > Hi Dale,
> >   Thaks for your captures.  Glad I'm right on frequency.  What is the
line
> > right below CO?   Lyle also sent me a good capture from MN.  He was the
> > only one to capture my Lowfer beacon last winter.
> > Doug W0AH
> >
> >
> > > I didn't believe it at first, but after several screens and being
> > > precisely on 1704.800, I think this is it. (My first MedFer capture).
> > >
> > > http://www.orecal.com/argo/USACO00003.jpg
> > > http://www.orecal.com/argo/USACO00005.jpg
> > > http://www.orecal.com/argo/USACO00006.jpg
> > >
> > > Dale Rice
> > > Williams, Oregon
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