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Re: MFJ-9219


 

Correction. I was mistaken that the 9219 is an L network. That means it isn't derived from the 16010.
? ?My experience with MFJ chassis grounding through paint stands however.

Joe n1khb?


On Fri, Dec 23, 2022 at 10:32 PM, Joseph Wonoski via groups.io
<N1KHB@...> wrote:
I'm willing to venture that it's an mfj 16010 repackaged with extra stuff. I actually like the 16010. I did need to remove paint for the chassis ground connections before it would work right though.
??
Joe n1khb?


On Fri, Dec 23, 2022 at 9:45 PM, ADAM COLLINS
<quakc1@...> wrote:
Hello all.? Wondering if anyone has used this product with the FT-817 or otherwise?

It is an all-in-one QRP manual antenna tuner with watt/swr meter, dummy load,? and impedance matching network rated up to 20W.? The design is a T-network with a coil and meshed capacitors.

I replaced my LDG Z817 and MFJ-813 swr/watt meter setup with this, and I could not get better than about 3:1 SWR at 5 watts output on 20, 30, and 40 meters.? At 0.5W, I could get the SWR pretty low, but it would go up with every increase in power level.

The auto-tuner it replaced, on the other hand, would give decent results easily on all bands.

My antenna is a Chameleon EMCOMM II which is an end fed 60' wire with a balun at the base where the coax is connected.? I have it installed in a slope configuration and a low loss coax to my rig.

I know MFJ has some QC issues, and I'm thinking I just got a dud.? I hope that's all it is.? I'm sending it back on warranty for a replacement.

You may ask why I would want to replace the nice setup I had.? I guess it was the lack of batteries, and one item replacing two.? Plus, there's a certain satisfaction with doing the tuning myself.

Thanks and 73, Adam? KE0GNL

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