And yet, incredibly, the Mosley specs for the Pro 57B say it has 8.5 db
gain over a dipole (dBd) on 20m/17m/15m/12m with only three elements per
band. By comparison, Optibeam claims 8.5 dBd for their 5 element 20m
monobander on a boom twice as long as the Pro 57B.
http://www.mosley-electronics.com/spec%20files/amateur/pro57b.htm
No way on earth that three elements would be capable of 8.5 dBd, but
apparently such unfounded claims sell antennas anyway. I don't dispute
that the Pro 57B is durable, but that's like bringing a 1950's era
Schwinn cruiser to a modern bicycle criterium race.
Dave AB7E
On 10/16/2012 7:08 AM, K7LXC@aol.com wrote:
If you had a choice between antennas which would you choose a Mosley
Pro 57B 3 inch boom or Cubev 4 element 5 band quad. Both would be mounted at
50ft. I do not have modeling software to compare. Thoughts?????
According to our landmark on-the-air tribander test, the Mosley PRO
antennas underperformed the competition. In one case, it even had negative gain
on one band. I'd suggest any antenna over a Mosley.
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