Bill and Ken -

I too have the N8XJK boost regulator and mine made some trash on a few bands. 
This was very easily resolved with a 2.5 inch mix 31 ferrite core with several 
turns of the supply line wound through it. LOTS easier than messing with the RF 
sense stuff on the unit. I have zero garbage coming from the regulator with the 
ferrite on the line.

Jim / W6JHBH


> On   Tuesday, Jun 28, 2016, at  Tuesday, 3:40 PM, Bill Frantz 
> <fra...@pwpconsult.com> wrote:
> 
> I have a N8XJK boost regulator which has RF switching like your booster. I 
> use a UHF "T" connector -- 2 female and 1 male. I connect the male plug 
> directly to the booster and then use coax jumpers to connect the radio and 
> the antenna. That way the stub is so short that it doesn't have a noticeable 
> effect on the antenna match.
> 
> 73 Bill AE6JV
> 
> On 6/26/16 at 7:51 PM, w...@i29.net (Kenneth Christiansen) wrote:
> 
>> I plan to go on vacation in about a week and bought a MFJ-4416B battery 
>> booster to use with my KX3 and KPA100 in my camper. I see a SO239 jack on 
>> the booster that needs some RF to turn the unit on during transmit and off 
>> during receive. I tried letting it run during receive but it makes a low 
>> level nasty interference on 20 CW. Does anyone have experience feeding RF to 
>> that jack? I feel it would be undesirable to have a branch off my feed line 
>> that would act as a tuned stub. I feel the RF switching would be desirable 
>> but need to know the best way to do it.
> 
> -----------------------------------------------------------------------
> Bill Frantz        | Truth and love must prevail  | Periwinkle
> (408)356-8506      | over lies and hate.          | 16345 Englewood Ave
> www.pwpconsult.com |               - Vaclav Havel | Los Gatos, CA 95032
> 
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