[Lowfer] Experimental 137 kHz

[Mitch Powell]

Hi Bill:
> 
> What's the approx distance from the tips of the tophat radials to the trees?

Keeping tips about 3-4 feet away from supporting branches.


>> Now shut down for further antenna work - maybe cutting limbs (?).
> 
> Better not touch those limbs! You understand of course that "Conventional
> Wisdom" points to a loop antenna? (Been following the rsgb LF reflector
> lately?)

Yes - I know am am just about there - however, I wanted to try the vertical
for directivity reasons. Your comments in an email about changing antennas
for N-S and then E-W , along with the rapid approach of old man Winter - and
going outside for such activities really slowed me down. I will keep it for
a few weeks and after further adjustments on the antenna, I will probably
bring it down and convert it into a loop.

Re: RSGB - yes - following and copying with great interest - and want to see
how Rik makes out with his experiments - particularly related to the high
currents and related components.



> Let us know when you will be transmitting again on either antenna. This tree
> probe doesn't mind that you are at 137.... and there is definitely no
> conflict with my transmitting on 185.3.

I had tremendous de-sensing with the transmitter affecting 185.3 ( and in
fact the whole NDB band ) I ended up receiving all kinds of intermod
products included with the desensing ! The one radial is above and within
10 feet of the receiving loop. So I essentially shut down receiving
activities for past several test days.
I follow your "tree" antenna with interest.

Mitch