[Kantronics] KAM, 98 and 3+ Questions

[Jerry Lofstead]

Jay,

If you have been using ICOM radios, the rear inputs are high Z and have 
the problem.  You need to put ferrite beads on each lead INSIDE the 
connector.  You may also need to bypass the leads better.  I had to put 
the beads on each lead and then a big clamp on ferrite block at the plug 
to get it to work.  I have not had that problem with my Yaesu radios... 
FT817 and FT847.  Yaesu uses a different external audio scheme than ICOM...

Jerry
W3CDE
Atlanta, GA

J. Coote wrote:

>I have noticed that in many HF, and some VHF transceivers the design of the
>transceiver
>creates problems with RF or other feedback when the TNC is left connected to
>the rear
>accessories connector on the radio- while using the mike.
>
>My concern is I am putting together an emergency ops center for my agency
>and want radios that are truly multimode and do not have this feedback
>problem
>with a hardwired TNC.  Disconnecting the TNC when changing back to voice,
>fumbling
>with added switch boxes or kluge are not options.
>
>Can someone please suggest HV/VHF multimode transceiver and TNC options that
>once the TNC is plugged into the rear connector, can be left plugged in?
>
>Thanks
>
>Jay
>AAR9QM/W6CJ
>
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