RadioBanter - SMA connector on VX-2R out of spec?

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SMA connector on VX-2R out of spec?

Howdy,

I recently obtained a Yaesu VX-2R and I like it very much, but for
some reason none of my aftermarket antennas seemed to work well on it.
Today I think I finally realized well. I noticed that the center pin
on the original antenna was much longer than on either of my
aftermarket antennas (one a Diamond SRH519, the other a Comet nubbin).
In examining the connector on the radio, the center hole looks like it
is recessed quite a bit. I removed the rubber boot that is around the
bottom of the antenna mount and screwed on the Diamond antenna which
then suddenly begain to work quite well. Apparently the center pin of
both antennas was able to reach the center hole on the radio.

Which is out of spec? The VX-2R's mount or both of my antennas?

Thanks for any thoughs,
Tad

SMA connectors were originally designed for true microwave
use ... not for 2m HT antennas ... therefore, the specs on true
SMAs should be pretty tight ...

I would guess that either the radio or the antennas have
"SMAs" that aren't close to microwave tolerance specs.

Carl - wk3c

Today I think I finally realized well. I noticed that the center pin
on the original antenna was much longer than on either of my
aftermarket antennas (one a Diamond SRH519, the other a Comet nubbin).
In examining the connector on the radio, the center hole looks like it
is recessed quite a bit. I removed the rubber boot that is around the
bottom of the antenna mount and screwed on the Diamond antenna which
then suddenly begain to work quite well. Apparently the center pin of
both antennas was able to reach the center hole on the radio.

Which is out of spec? The VX-2R's mount or both of my antennas?

My VX-150 had similar issues with a couple of aftermarket antennas.
The counter guy at HRO said that was not uncommon with certain
combinations.

Probably due to specs being too wide, and one part in spec, towards
the one side ,and the other part, in spec, towards the other.

Standards.

Happy trails,
Gary (net.yogi.bear)
------------------------------------------------
at the 51st percentile of ursine intelligence

Gary D. Schwartz, Needham, MA, USA
Please reply to: garyDOTschwartzATpoboxDOTcom