[Elecraft] mfj 1786 loop antenna

[glen worstell]

 From Steve:

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Greetings,

In my quest to find a low profile antenna, I've looked at a lot of
possibilities. I was curious if anyone has and experience with the MFJ 
1786 loop antenna.
...
Thanks and 73,

Steve KS6PD

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Keep in mind that reports of dx contacts on low power are useless for 
comparing one antenna with another. Some Old-timers may remember working 
stations with a low-cost dummy load (a lightbulb) years ago.

I built a loop antenna out of copper pipe some years ago, and it worked 
fine.

I suggest that a dipole cut for 1/2 wavelength at the desired operating 
frequency is likely to work better. Small antennas have higher loss.

My mobile antenna is small, too, and is probably only about 10% 
efficient on 40 meters, but I have no trouble working lots of folks even 
though the 200 watts I put in to the antenna results in radiating only 
perhaps 20 watts.

So, if you have the room, put up a larger antenna. If you want portable, 
consider a Buddipole. If circumstances dictate that the MFJ or Alexloop 
is the best thing to use regardless of low efficiency, go for it!

cheers,
Glen, KG0T