[Elecraft] Vern's two antennas MP-1 vs. PW-1

[K7FD N7SG]

Hello Bob/Elecrafters,

The MP-1 coil is much slimmer than the PW-1, I've got both. Yes, you can put 
a collapsable whip in place of the individual sections. In fact, you can mix 
and match any lengths of top tubing or bottom section...but you'll come up 
with your own set of correct settings, not Vern's. Using an MFJ-259 makes a 
snap of tune up.

I use my MP-1 mobile and have completely changed the antenna configuration 
by putting a 27 inch aluminum base, then the coil, and then a 48" stainless 
2m whip on top. It works like gangbusters too, working a VU2 on 20 meters 
while in motion. I consistently get 'screwdriver' type reports without 
having a huge ugly screwdriver antenna on my CR-V. You can check it out at 
the URL listed below...

73 John K7FD
Monster Mobile: http://w3.cablespeed.com/~cqdx/mobile.htm


>From: "Wilderman" <dlrwild1@voicenet.com>
>
>Anyone know what the big difference is between the two portable antennas 
>that Vern has created for the K2 and K!. I have the earlier PW-1 which 
>looks identical to the new improved MP-1 except for the collapsible whip at 
>the top vs. the stainless steel one foot sections (3-4).
>
>I imagine that the portable tripod base can be used with either model of 
>Vern's antenna. The earlier version (PW-1) did not come with his frequency 
>adjusting chart for the slide coil. Does the newer version perform any 
>differently?
>
>I bought my PW-1 in 2000 at the Elecraft booth from Vern. can you 
>substitute the collapsible whip for the screw together sections? Any help 
>would be greatly appreciated, thanks.
>
>Bob Wilderman, K3SRO


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