[Kenwood] Kenwood AT-230 Manual Antenna tuner PEP limit

Fri Jun 20 14:02:47 EDT 2014

You can measure the capacitor plate spacings, or wire gauge size of the
inductors or just believe the Kenwood specs. The AT-230 was designed to
mate with the TS-830. With the amp, I would definitely use the SA-2060A
unless you really want to put the AT-230 in destruction mode.
Pete, wa2cwa
On 2014年6月20日 13:53:51 -0400 Terry Clinard <tclinard at hotmail.com>
writes:
> Can anyone advise me if the specs. on the AT-230 manual torroid 
> tapped inductors / variable capacitors, can withstand 450watts PEP 
> when on SSB? The manual states that it is rated at 100 watts CW 
> carrier and 200 watts PEP. If the load conditions do not allow for 
> arcing, then it seems possible to do this once you use the tuner and 
> determine at what wattage it will begin arcing at. Maybe it will 
> withstand 350 watts PEP. Is there any way to test prior to using it 
> with higher wattage than what it is rated at? 
>> I am using a TS870S exciter at 20 watts output to drive a homebrew 
> 400 watt out solid state amp SSB only. This set up works well with 
> my Heqathkit SA2060A antenna tuner but the Heathkit is rated at 2000 
> watts PEP.
>>>> Thanks Terry WA8OPR