[Icom] 706 MKIIG ACC port

Wed, 3 Jul 2002 08:04:32 -0700

Tnx Jerry/W3CDE

Randy
AC7NJ

-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Lofstead, Jerry
Sent: Wednesday, July 03, 2002 7:13 AM
To: '[email protected]'
Subject: RE: [Icom] 706 MKIIG ACC port

The impedance (Z) of the inputs on the ACC connector is a high impedance
and susceptible to picking up extraneous signals that a low Z line would
not.  I believe either 10K or 20K impedance..  The ferrite beads keeps
RF out.

Jerry 

-----Original Message----- 
From: [email protected] [ mailto:[email protected]
<mailto:[email protected]> ] 
Sent: Wednesday, July 03, 2002 10:03 AM 
To: [email protected] 
Subject: RE: [Icom] 706 MKIIG ACC port 

Jerry/W3CDE 
I'm not clear on what you mean hi "Z" and the solder joints "Z" must be 
a symbol for something associated with RF. What is the problem and the 
solution relative to making up these cords for AMP's TNC's etc.   

Randy 
AC7NJ 

-----Original Message----- 
From: [email protected] [ mailto:[email protected]
<mailto:[email protected]> ] On 
Behalf Of Lofstead, Jerry 
Sent: Wednesday, July 03, 2002 6:27 AM 
To: '[email protected]' 
Subject: RE: [Icom] 706 MKIIG ACC port 

All, 

One thing to keep in mind on the rear ACC connections on ALL of the 
706's is that these inputs are all HI Z!!  If you filter, put ferrite 
beads at the soldered point of the wire to keep RF out.  I learned the 
hard way and then talked with ICOM about it... 

Jerry 
W3CDE 

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