[Yaesu] FT-7100 head separation

Wed Aug 1 20:10:10 EDT 2012

Ray Brown wrote:
 >----- Original Message ----- 
 >From: "n0kqy" <n0kqy at wbsnet.org>
 >
 >> Has anyone been able to separate the control head and transceiver unit 
 >> on a FT-7100, or similar, 325 feet apart? Using regular 6 conductor 
 >> cable, 60 feet or so is as far as things will work. Any thoughts on 
 >> using buffer amps, line drivers, or other means to extend the distance 
 >> between the two units? No internet available between the two sites.
 >> Any ideas or comments?
 >
 > Do you have any idea what kind of signals are being passed along
 >the 3 pairs of wires? I don't have that particular model and I'm not sure
 >I can find a manual for it offhand. But I'm familiar with some of the
 >standards for long-haul wiring. I just need to know if it's digital or analog
 >signals on the wires.
The short answer for Ray is "yes" -- both digital and analog are getting
passed on the cable 'tween the radio and the display head. The microphone
audio is passed to the main unit along with some [TTL not RS-232] serial
TX/RX lines between the display processor and the main unit.
N0KQY needs to know that for receive audio, he will need an additional
cable for the external speaker jack on the back of the main unit as well.
You might do well with some sort of Class 1 (100-meter range) Bluetooth
adapters that can carry both the audio and serial protocols, IFF there's
an RF path between the head and main unit.
A real 'hack' would probably involve a couple of Raspberry PI boards
(with USB Wifi adapters for wireless solution) and a little bit of
programming. :-)
	-Rusty-
-- 
 _____ Rusty Haddock <=> AE5AE
|\/ o \ o Way out yonder in the
| ( -< O o Van Alstyne (TX) Metropolitan Area
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