Colin, you definitely cannot use a standard phone extention cord.  
I tried numerous ones in an effort to find one that worked.  I 
remember that it kind of worked, but I think the speaker in the 
control head did not work.  I had to plug a speaker in the 
external jack on the body of the rig to get audio.  Jim WA6EKS

 ----- Original Message -----
From: Colin McDonald <[log in to unmask]
To: [log in to unmask]
Date sent: Fri, 30 Jan 2015 13:45:36 -0700
Subject: Re: Kenwood TS-480SAT remote head operation

Your right, it feels the same, but a standard telephone jack is 
an RJ11
using 4 pins.
I believe the RJ12 has 6 or more pins...
The jacks/plugs may be of similar size and shape, but they're 
certainly not
the same jack.
SO I don't think you can just take a regular old phone extension 
cord and
use it to connect the head to the body of the radio.

73
Colin, V A6BKX
-----Original Message-----
From: Howard Kaufman
Sent: Friday, January 30, 2015 1:40 PM
To: [log in to unmask]
Subject: Re: Kenwood TS-480SAT remote head operation

Wrong wrong wrong.
The head connects to the ts-480 with an rj12 cable.
The connectors on both ends feel like the modular jacks used on a 
phone.
The rj45 connector on the front of the radio is for the 
microphone.

----- Original Message -----
From: "Matthew Chao" <[log in to unmask]
To: <[log in to unmask]
Sent: Friday, January 30, 2015 1:41 PM
Subject: Re: Kenwood TS-480SAT remote head operation


 The control head uses an RJ45 cable/connector to the main body.  
At
 the other end of the radio itself is a Molex (I think that's 
what
 it's called) connector which in turn plugs into a cable going to
 either a 12VDC connection a.k.a.  battery or a base power
 supply.  Believe the control head activates a relay which turns 
on
 the radio.  Hope this helps.--Matt, N1IBB.

 At 01:51 PM 1/30/2015 -0330, you wrote:
Hi all:=20

I know there's a couple of TS-480SAT users on the list so I gotta 
=
question about the remote head.=20
How does it receive its power if you have the 2 units separated? 
Is =
there a separate power connecter that you plug into the 12 volt =
accessory plug in the car?=20
Perhaps there's just enough voltage carried over the cable with 
the =
RJ-11 cable to power the head? Is this how all the sep kits work 
=
including the Icom IC-706?=20

73:=20
Mike DE VO1AX=20