Over the past year I have mainly, for convenience, used Hamsticks for my portable activations, and I have been very happy with them. The problem I have is switching between the various bands....especially in the winter! That means getting out of the warm van and changing whips, it's a real pain and takes time, especially when it's -25C.
My hope was that I could set up Hamsticks for two different bands, and just use a coax switch to change bands, it would also speed things up in the long run.
So with this in mind, last week I decided to conduct an experiment with two 20m Hamsticks. One would be mounted on the roof of my van with a 6" single mag-mount. The other would be mounted on a camera tripod, and would have five 17 foot ground radials set out.
I set up my KX3 and went searching for a very loud 20m CW signal, and there were lots to chose from that day.
The coax for both antennas was connected to a two-position switch, with a RF isolator placed in line between the switch and the radio.
Wow, what a difference!! The hamstick mounted on the van roof was 4 db louder than the one mounted on the tripod. I knew there would be a difference, but not that much. Obviously this is not going to work for me.
Hopefully I'll come up with another idea before the snow flies again this year.
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The set-up in the back of the van. |