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Categories | Power Supplies | MFJ-4275MV Help

Show all reviews of the MFJ-4275MV

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VK3AFB  Rating: 3/5 Jul 19, 2013 00:11  Send this review to a friend!
HashSQUASH™ Does not work!  Time owned: 0 to 3 months
I bought this one from my local ham radio shop to use with my HL-450B and like others I found that it put noise on the band. This is very clear on my PAN adapter and NaP3 waterfall display. My work around was to attach my SLA battery to the supplied battery terminals and if I happen to be on a frequency with Hash I'd lower the voltage until the Hash went away which meant I was running on batteries and I'd turn it up the voltage again when I wanted to transmit.

I mentioned this problem to my local supplier and he said MJF had sent him some parts to fix this issue. A couple of resistors 2 x 8.2 Ohm 10W to place across the output, and some blue Caps or MOVs to replace on the supply input filter.

Unfortunately - it did not work.

In retrospect - wonder if I would have been better to have a large 100Ah SLA and a charger. 
Product is in production.
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