[GCARC] ICOM AT-500

ddole1 at aol.com ddole1 at aol.com
Mon Mar 4 16:21:25 EST 2024


I acquired this tuner with my IC-756PROIII but never used it. 
Univeral Radio's description of the unit is below:

"The Icom AT-500 is an automatic external antenna tuner for 160 through 10 meters. Specific frequency range is: 1.8-2, 3.5-4, 7-7.3, 10-10.5, 14-14.5, 18-18.5, 21-21.5 and 28-30 MHz. Power capacity is 500 watts continuous, 1000 watts PEP. Impedance matching is 16.7 to 150 ohms to 50 ohms resistive. Minimum tune up power is 50 watts. The top panel access cover opens for adjustments for the Auto/Tune Preset switches, preset timers and Preset Indicators. The AT-500 rear panel features one input SO-239 jack and four output SO-239 coaxial antenna jacks. Tune-up time is typically 4 to 7 seconds (3 seconds on the same band). The power requirement is 13.8 VDC or 117 VAC which is selectable from the rear panel. (241x111x300mm 6.4 kg).

The AT-500 provides auto-band switching with several Icom transceivers including the IC-720A and IC-730. 
>From the factory, the AT-500 provides four antenna jacks on the rear panel:  ANT4 1.8 MHz, ANT2 3.5 MHz, ANT3 7-10 MHz and ANT4 14/21/28 MHz. You can easily change the connections by changing the internal wiring jumpers. Based on your situation, you can even connect them all to one antenna jack, if using only one antenna. INFO"
I have the unit and the manual (I may also have the cable). 
Current Ebay adds range from $198 in poor condition to $1000 in like new condition. My unit is in excellent condition. I'd rather see this go to a club member so let's say $300.00.
Dennis K2SE
PS: I also have the matching IC-2KL 500 watt amp. It needs repair (I fried the final during CWSS). I'll throw it in.
  


More information about the GCARC mailing list