[MRCA] More Gilbert Ramblings

[ersmar at comcast.net]

Rob, Al et al:

      My proposed NVIS AS-2259-like antenna is gonna be big.  It's actually a half-wave 80M inverted V and a half-wave 40M inverted V at right angles to each other, just like the AS-2259 that Al brought last year.  Will there be enough room at the fairgrounds to have both Ted's open-wire fed doublet and this other wire set erected in the air?

     If we decide that there isn't enough room for two of these 80M antennas, then let me suggest a couple/three things.  First, I could try to whip up a matching circuit (tuner) to allow a normal pi-output rig (GRC-9?) to better match the wierd impedance of Al's AS-2259 on 3.885.  (As I recall from my model, on the other computer, it's somewhere around 30 Ohms and lots of inductive reactance.)  This would allow more power INTO the antenna, not just OUT OF the rig.

     Secondly, I could bring the full-size 80/40M NVIS thingy I'm building and erect it in the second field position with Rob.  We'd need some kind of 3.885 rig, though, unless using my spare TS-570 and battery counts.  

     Lastly, we might consider setting up this larger antenna out in the parking lot, if permitted, along with a second HF rig (mil or modern.)  

     Anyone have comments?

73 de
Gene Smar  AD3F


 -------------- Original message ----------------------
From: "Robert Flory" <robandpj at earthlink.net>
> Hi,
> 
> Al and I kicked around some ideas with respect to field exercise and we
> came up with a few ideas.  I have taken what we talked about a little
> further, hopefully without altering the intention.  We didn't really
> discuss the operating aspect, but more the antennas and such.
> 
> Let's put up our traditional open wire fed dipole, which is a known good
> performer for Ted to conduct the OMRN with.  
> 
> Let's put up Gene's AT-2259(or whatever the real nomenclature is, I pulled
> that directly out of my, er, whatever) and hook a GRC-9 to it for a low
> power NVIS station.
> 
> Let's put up a vertical antenna at the fairground, too, with its own
> transmitter.  Volunteers?  If Ted had his TCS and his GRC-19, the TCS would
> go nice here.  Anyone else have something to offer?
> 
> Let's let anyone that wants to go to the mountain, and set up whatever
> 
> Let's use my mobile TCS to go the same distance again on the other side of
> the mountain and set up a 1/2-wave end-fed antenna in addition to the
> mobile whip so we can try vertical and horizontal antennas there. I could
> take a few other folks, maybe with VHF stuff or even a second HF set.  
> 
> Ted could call up all stations, asking both the other fairground stations,
> and a strong station from the mountain for relays(which might be the
> distant mobile, or a weak station from mountain which came in better on
> either of the other fairground stations)
> 
> Once the rotation was established, everyone should have heard everyone else
> make a transmission and the next round could be reports.  
> 
> Rob Flory
> robandpj at earthlink.net
> www.home.earthlink.net/~navyradio  WWII Navy Radio
> www.home.earthlink.net/~robandpj    Les Flory Television and Electronics
> 
> 
> 
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