We may never know, but the problems you site seem like good reasons to keep 
the cabling as short as possible.

Steve

----- Original Message ----- 
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: January 30, 2015 20:15
Subject: Re: Kenwood TS-480SAT remote head operation


> The IC-706 and 7000 have mic jacks on the control head, as do about all 
> the
> commercial UHF/VHF radios with remoted control heads. You hear a lot of 
> the
> icom and Alinco HF radios with remote mounted heads in the mobile with RF
> feedback though unless a lot of work is done to them, ferrite beads and 
> what
> not, Running them with no added protection other than what's from the
> factory almost always leads to feedback on HF, I don't know if that's why
> Kenwood just doesn't bother or if they have other reasons.
> ----- Original Message ----- 
> From: "Steve Dresser" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, January 30, 2015 7:50 PM
> Subject: Re: Kenwood TS-480SAT remote head operation
>
>
>> My guess is that they would have needed a second cable to go from the
>> control head to the radio, and they didn't want to do that.  Besides, 
>> long
>> low-level input leads tend to pick up hum.
>>
>> Steve
>>
>> ----- Original Message ----- 
>> From: "Butch Bussen" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: January 30, 2015 18:28
>> Subject: Re: Kenwood TS-480SAT remote head operation
>>
>>
>>> I'd have to go look at mine, but I think it is rj12 on both ends, the
>>> microphone is rj45 I think, why they didn't incorporate that into the
>>> control head is a mystery.
>>> 73
>>> Butch
>>> WA0VJR
>>> Node 3148
>>> Wallace, ks.
>>>
>>>
>>> On Fri, 30 Jan 2015, Jim Gammon wrote:
>>>
>>>> When I had a TS480, I needed a short cable, about 20 inches long
>>>> to go from the body of the rig to the control head which I had on
>>>> the desk.  I found out that yes, it's an RJ12 you need.  I think
>>>> it's a direct one to one correspondence no wires crossed over
>>>> from one plug to the other.  However, I now have the TS590 so am
>>>> no longer in need of the short cable.  The only one I could find
>>>> for sale was an 18 foot one which I bought at the time from HRO.
>>>> 73, Jim WA6EKS
>>>>
>>>>
>>>
>