[TenTec] TT transmatch Noise Bridge Kit

[Charles P. Steinmetz]

Richards wrote:

>I have a TenTec station Omni VII, Centurion, RX-320D, Model 715, and
>some of their receiver kits.  I also have a pair of Palstar tuners, only
>one of which is on line with the transceiver right now.
>
>I like using the RX-320D.   I wonder whether anyone thinks I could use
>the noise bridge to tune an antenna on my spare tuner -- allowing me to
>tune the receive antenna without having a transmit signal.

Antenna "tuners" (matchboxes) do not really tune (resonate) an 
antenna -- they just match its impedance to the Tx or Rx.  This is 
generally not very important at the sub-milliwatt power levels 
encountered in receive-only systems.  I have never found that a 
matchbox improved reception significantly, although I hesitate to say 
that there is no antenna it could ever help.

Actually tuning (resonating) the antenna, on the other hand, can be a 
great help -- but that is not what matchboxes (with or without noise 
bridges) do.  (And it can get old fast if you change frequencies much.)

Best regards,

Charles