[MRCA] RT-70 progress

Sun Aug 14 15:13:19 EDT 2005

Dale:

     Any freq/channel on 60M ought to work, I suppose.  I haven't worked much on this band since the first night it opened (seems to apply to the rest of the US hams, too.)  

All:

     Regarding HF exercises, if we want to test things, maybe we ought to have an intercom freq available during our tests.  Maybe 146.52 or .49 simplex?  51.0 MHz?  Do we want to involve other hams outside the Poconos, like maybe K2GW and his EmComm operators in Princeton, NJ?  Gary is hot into EmComm activities as the SEC for SNJ (and a college buddy of mine.)  He also has tested NVIS antennas and written about them.

     I agree that 40M might be our only good band at that time of day.  But we could check the web site Al mentioned around the time of the test (assuming web access from Gilbert.)  

     A thought:  Could we obtain permission to set up the AS-2259-equivalent in the parking lot at the event?  Way out near the cars?  We might be able to keep it up for longer than the fieldex.  Any interest?

     More to follow, I'm sure.

73 de
Gene Smar  AD3F


> I think we ought to work this in to the tactical event Saturday morning.
> Send out a two or three man team with a HF rig on the other side of the gap.
> Al, I think you had a place identified.  Put up a vertical and a NVIS and
> compare reports.  The PRC-47 would be a good rig to use.  I have others of
> lower power that I could dispatch on a mission with Gene.
> 
> Gene, if we operate 60 meters during MRCA, do you prefer any particular 60
> meter frequency?
> 
> Dale
> 
> 
> ----- Original Message -----
> From: "Al Klase" <skywaves at webex.net>
> To: "Military Radio Collectors Association" <mrca at mailman.qth.net>
> Sent: Sunday, August 14, 2005 5:21 PM
> Subject: Re: [MRCA] RT-70 progress
> 
> 
> > Dale, Gene, et al,
> >
> > Good point that I meant to comment on.  I have an AS-2259
> > with a cobbled up "universal" base.  We could hook it to
> > some radio or other, maybe the PRC-47 (mine's LSB)
> >
> > This antenna strikes me as pretty short to be really
> > efficient on 75 meters.
> >
> > The other thing we could try is the standard "long wire" on
> > the GRC-9's.  They have you adjust the wire to about
> > lambda/2, and provide a Hi-Z feed.  This makes the ground
> > not so important.  If we put the middle of the wire 15-20
> > feet up, we should get a good vertical pattern.
> >
> > Not sure where to stick this in the schedule.  Perhaps we
> > could dispatch an NVIS crew to the south while the main
> > force goes to Big Pocono,  My concern is that at that time
> > of day, 3PM-ish, we may have to use 40, and might well have
> > trouble with the broadcasters.
> >
> > Maybe Rob and I have to go up there in advance and Klutz
> > around.  Actually Rob's house is about 12 miles away and
> > over a hill, guess we should try from home.
> >
> > Discussion?
> >
> > Al
> >
> > Al Klase - N3FRQ
> > Flemington, NJ
> > http://www.skywaves.ar88.net/
> >
> >
> > Radio Station KW1I wrote:
> > > Gene,
> > >
> > > I hope you are still planning on an NVIS experiment on HF at MRCA.
> > >
> > > Dale
> > >
> > >
> > > ----- Original Message -----
> > > From: <ersmar at comcast.net>
> > > To: <mrca at mailman.qth.net>
> > > Sent: Saturday, August 13, 2005 11:07 PM
> > > Subject: [MRCA] RT-70 progress
> > >
> > >
> > >
> > >>Gents:
> > >>
> > >>     I am having troubling getting the RT-70 I want to bring to the
> > >
> > > Gilbert Fieldex working on TX.  It hears sigs from my IC-746 and from
> some
> > > other milrads OK.  But I can't get the PTT to work.  I have some more
> > > circuit tracing to do, most likely in the 6VDC source for the PTT
> relays,
> > > found in the AM-65 PS/amp.
> > >
> > >>     I had offered to bring this radio to Gilbert, but now I'm not as
> > >
> > > confident I'll be able to get it working in time.  I will be bringing my
> > > PRC-25 along with the AT-271 fishing pole antenna, AB-591/PRC-25 rubber
> base
> > > and the AB-1135/PRC ground mount base.  Can someone tell me if this
> antenna
> > > system will be adequate for use at either end of the Fieldex?
> > >
> > >>     I'll keep working on the RT-70.  But I wanted to let the Fieldex
> > >
> > > organizers know that I might not be able get it functioning by then.
> > >
> > >>
> > >>73 de
> > >>Gene Smar  AD3F
> > >>_______________________________________________
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> > >>MRCA at mailman.qth.net
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> > >
> > >
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