[MRCA] Re: [Milsurplus] AS-2259 Antenna Test and Notes

[Gene Smar]

Breck:

     Thanks for the update.  I have two comments.

1.   I believe you want the wire lengths on the test and match page, second 
illustration, to show as 24 FEET ten inches and 36 FEET ten inches.

2.   Have you done any on-air testing/matching on 60M?  Your test and match 
page shows matching networks for only 80 and 40M.

3.   It might be possible, and even desireable, to construct a matching 
network with switch-selectable component values for use with the AS-2259 on 
the two or three HF bands.  This will make the -2259 a good antenna for 
portable use at FD or EmComm sites.

     As you know, I fabbed a set of full-sized dipole wires for my version 
of this antenna.  It seems to work quite well with the center at 19 feet 
(five sections of mil surplus fiberglass telescoping poles) of support.

     My thoughts are next to connect one wire length for each of four Ham 
bands (80, 60, 40 and maybe 20M) onto the center feedpoint and see what it 
can do on four bands simultaneously.  I've read of other Hams doing this 
with 80M dipoles and elevated ground plane antennas - each dipole half was a 
different length, providing two resonance dips across the band.  I'll model 
this and report to y'all.


73 de
Gene Smar  AD3F


----- Original Message ----- 
From: "B. Smith" <smithab11 at comcast.net>
To: <milsurplus at mailman.qth.net>; <mrca at mailman.qth.net>
Sent: Saturday, June 02, 2007 11:49 AM
Subject: [MRCA] Re: [Milsurplus] AS-2259 Antenna Test and Notes


> Robert said:
> | "FWIW, if you use the antenna with the RT-671/PRC-47 the antenna mounts
> | directly to the radio and you don't need a separate matching unit unless
> you want to
> | put the radio in a dugout with the antenna outside. " :-)
>
> This is correct, as I mentioned TM-11-5985-379-14&P is based upon using 
> the
> PRC-47 as is.
> The tuning of the PRC-47 can be rather touchy on 80 meters which is to be
> expected because of the short length of the antenna wire elements.
>
> I am sure the group would be interested in other comments , has anyone 
> done
> any real testing of the AS-2259 system?
>
> 73 breck k4che
>
> _______________________________________________
> MRCA mailing list
> MRCA at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/mrca