[TowerTalk] A3W traps

[Herb Schoenbohm]

I am looking to build a beam for the WARC bands to replace the wire 
antennas I currently use on 10/18/24 Mhz.  I think I have sufficiency 
learned my lesson in recent seemingly unending pile ups that the wire 
antenna  have put me through. Even a rotatable dipole high up at 90 feet 
should help out a bit better. I have many Cushcraft A3 traps collected 
from past storm damaged antennas but I think conversion to the WARC 
frequencies would be problematic.  I also have EX-14 traps but removing 
turns may not be all that easy. I have even considered trying to short 
out some turns but due to the aluminum sleeve construction measuring the 
results may not be accurate. Since the traps appear to be a simple 
series tuned circuit I have even considered putting them in series with 
the center conductor on a long piece of RG-58 terminated in a dummy load 
and hooking up my MFJ-259 analyzer to see where the bump occurs 
believing that wherever the trap is resonant after modification there 
should be some indication of it's presence.  But before I go through all 
this steamboat engineering of perfecting some WARC traps perhaps some of 
these are laying around for sale from a ham that had the A3W before 
puting up a real WARC band antenna.

If you have any please let me know and I will get out a Pay Pal payment 
or check to you.

Please let me know.


Herb Schoenbohm, KV4FZ