[TowerTalk] 40-meter Beverage
RLVZ at aol.com
RLVZ at aol.com
Thu Feb 15 23:18:07 EST 2007
I'm going to put in some hours on 40-meters this weekend in the ARRL DX Test.
My transmit antenna works great but I'd like to put up a Beverage tomorrow
aimed towards Europe as my noise level is high and I probably won't be able to
hear them without a receive antenna.
This is another one of those last minute jobs! (I've been working
out-of-town for several months and just got home)
I don't have a matching transformer for the feedpoint and I don't have a
terminating resistor for the far end. Wish I did as I'd like the antenna to
uni-directional towards Europe.
QUESTION 1: I've heard some guys say that a Beverage will work pretty well
even if the feedpoint impedance isn't matched. For this temporary antenna can
I feed the Beverage direct with a piece of coax and ground the braid?
QUESTION 2: I don't have a termination resistor on-hand and no time to order
one. I need recommendations for what I should do with the far end, such as:
leave it open, tie it to a short ground rod, tie a helium balloon to it...
oops- don't have helium on-hand either! (just kidding on the balloon)
In closing, I'd like a temporary beverage that will improve my signal to
noise ratio on 40-m. beaming Europe.
I realize I should match the feed impedance and I should have a terminating
resistor... but since I don't and I need the antenna up tomorrow night... can
I make this inefficient beverage work better than my noisy transmit antenna?
Thanks & 73,
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