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Author Topic: Kenwood AT-250 TUNER  (Read 1281 times)
N5MON
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Posts: 2




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« on: December 18, 2012, 08:54:32 AM »

I have a Kenwood AT-205 antenna tuner that I am attempting to use with an ICOM-725 radio.  It seems the ACC cable form the AT-250 does not fix the ACC plug on the ICom 725.  Has anyone use this tuner with radio other than a Kenwood.  Any assistance is appreciated.   Ken
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WB2WIK
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Posts: 20543




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« Reply #1 on: December 18, 2012, 10:12:45 AM »

Easy:

Connect the center pin (+) of the SEND jack on the IC-725 to pin 3 of the connector on the AT-250.

Connect the outer conductor (gnd) of the SEND jack on the IC-725 to the shell (ground) of the connector on the AT-250.

Manually switch bands on the AT-250, as the Icom won't do that for you as far as I can tell.
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N5MON
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« Reply #2 on: December 18, 2012, 11:05:52 AM »

Thanks. I will give it try and hopefully not burn up my radio.  Been away from HR for quite some time and looking to get back into it.  I have a Kenwood Ts430s but no mic.  Have one ordered and hopefully will be in soon. My icom 725 is ready to go other then tuning the dipole.  Thanks 73's,   Ken
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VK4KX
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Posts: 12




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« Reply #3 on: December 20, 2012, 04:34:57 AM »

I performed this simple trick years ago and it's been working since on several different radios, all I need to do is push the Tune button in the appropriate band and away it goes. I have noticed though that the tuner has a high tolerance for antennas with low SWR that is close to resonance and just won't tune that last bit of SWR out of the circuit. Otherwise I have been very happy with the AT-250, it's pone of the best tuners I've ever had.

73 de VK4KX, Bernie
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