AH-4 vs. AT-180 w/resonant antenna
 

Hi OM's,
For the IC-706 MkIIG, Icom makes two separate tuners, the AH-4 and the
AT-180.
FYI: I run the MkIIG and AT-180 to feed a Comet UHV-6 and the setup is fine.
My curiosity is this. If the AH-4 will tune a non-resonant antenna
system, why then wouldn't I prefer it over the AT-180 which is used with a
resonant antenna. Couldn't I use the AH-4 with an antenna whether it was
resonant or not? Or, is there added benefit of the AT-180?
o_o_o_o
Best Regards, /| ,[_____],
Jim, WP3JQ |¯¯¯L --O|||||||O-
()_)¯()_) ¯¯¯¯¯ )_)
EM60qk 30.447439N 086.628959W

That's what I thought but there was a discussion about the AH-4 to any
antenna the other day. So then, coax is fed differently. Thanks for the
reply.
o_o_o_o
Best Regards, /| ,[_____],
Jim, WP3JQ |¯¯¯L --O|||||||O-
()_)¯()_) ¯¯¯¯¯ )_)
EM60qk 30.447439N 086.628959W

The AH-4 is designed for random wire type antennas. The radiator is attached
to the AH-4 via a wire post (as is the ground wire).

Paul AB0SI


"Drink" wrote in message
...
Hi OM's,
For the IC-706 MkIIG, Icom makes two separate tuners, the AH-4 and the
AT-180.
FYI: I run the MkIIG and AT-180 to feed a Comet UHV-6 and the setup is
fine.
My curiosity is this. If the AH-4 will tune a non-resonant antenna
system, why then wouldn't I prefer it over the AT-180 which is used with a
resonant antenna. Couldn't I use the AH-4 with an antenna whether it was
resonant or not? Or, is there added benefit of the AT-180?
o_o_o_o
Best Regards, /| ,[_____],
Jim, WP3JQ |¯¯¯L --O|||||||O-
()_)¯()_) ¯¯¯¯¯ )_)
EM60qk 30.447439N 086.628959W