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Author Topic: Can I run a IC-R75 with a TS-940S as a Transceive?  (Read 268 times)
KD5UVV
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Posts: 53




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« on: July 13, 2004, 08:01:03 PM »

Hello all, I ran across a good deal on an Icom IC-R75 receiver and would like to know if and how can I use it with my Kenwood TS-940SAT transceiver as a transceive. If so how do I hooked it up? I would like to have the R75 on a recieve only antenna or share an antenna with the TS-940S. I don't have the R75 yet but I think it would be a great addition to the TS-940S since the IC-R75 has DSP and twin passband tuning. Any comments on this is welcome. Thanks for the help, Dale
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KL0S
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Posts: 132




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« Reply #1 on: July 13, 2004, 09:00:32 PM »

Page 46 in the TS-940S manual:

Operation with a Second Receiver.  If you prefer operating another receiver in place of the TS-940S receiver section, you may share the antenna from the TS-940S during receive-time.  Flip the rear panel RX-ANT switch to EXTERNAL, and connect the antenna input of your second receiver to the RX ANT terminal using 50 ohm coaxial cable.  Reduce the AF Gain setting on the transceiver to zero.  Mute the external receiver from pin 4 and GROUND of the remote connector.  If a linear amplifier is also used with the transceiver, diode isolate the external receiver and linear to Pin 4, and be sure combined current is less than the maximum rating for this terminal.

Operation with a Separate Receiver Antenna.  Use the XVTR port and an 8 Pin DIN Plug, Part E07-0851-05

Pin 9 -- HF Ant output from the TS-940S
Pin 5 -- RX Ant input
Pin 3 -- GND

Either wire your extra antenna to pin 5 and ground, and use the DIN plug as the connect/disconnect, or wire pins 8 and 5 and the external antenna through a SPDT switch.
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KD5UVV
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« Reply #2 on: July 13, 2004, 09:33:40 PM »

Thanks for the info KL0S, Yes I found it in my manual just like you said. Should have checked more before posting. Thanks again, Dale
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K0RFD
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Posts: 1368




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« Reply #3 on: July 13, 2004, 10:21:41 PM »

Be aware that the R-75 in its own "transceive" mode only mutes the receiver, doesn't take it offline.

So if you are sharing an antenna, be careful.
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