Did you mean to say Force 12 and not M-squared?
None of the tribanders they tested in 1999 would hold a candle to a
3-element or larger SteppIR yagi today.
73, Barry N1EU
On Tue, Oct 1, 2013 at 6:48 PM, Jim Brown <k9yc@audiosystemsgroup.com> wrote:
> On 10/1/2013 7:51 AM, Richards wrote:
>>
>> These receive only antennas are nice to have, but I figure it is better to
>> improve one's transmit antennas if possible - especially if one can can
>> replace them with antennas with more gain.
>
>
> RX-only antennas are most useful on bands where it is impractical or
> expensive to get directivity from your TX antenna -- 160, 80, 60, 40, and
> 30.
>
> Another VERY important point. Contrary to manufacturers' claims, it is VERY
> difficult to get much more than about 5 dB gain over a dipole with a
> collection of aluminum on a boom. That was the clear result of extensive
> measurements by N0AX and K7LXC of a dozen or so of a broad selection of
> tri-banders. An M-squared C3 was the best of the small ones, with an
> average gain of 3.4 dB across the three bands. A Mosley TA33 was only 1.6 dB
> (loss in the traps made the difference). An M-squared C-31XR (31 ft boom)
> was the best of the big ones with 5.3 dB over a dipole, a Cushcraft X9 was
> 5dB, a Bencher Skyhawk was 4.4 dB, the rest were less than 4 dB, and several
> big Mosley antennas had negative gain!
>
> 73, Jim K9YC
>
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