Re: [IRCA] Quamtum phaser vs MFJ 1026

["Craig Healy" <bubba@xxxxxxxxxxxxxxxxxxxx>]

> I received the Quantum Phaser in todays mail. It is a nice looking unit,
> much nicer looking that the MFJ 1026.
>    I hooked it up and after using the unit for a while, my MFJ 1026 does
> a better job. This probably is a shock to some. With the built in preamp
> in the 1026, after I end up nulling a pest, there is still plenty of
> signal from the weak signal I am trying to hear, to understand it. With
> the Quantum, in many cases once I null the pest, the signal I am trying
> to hear it too weak to understand. There seems to be too much loss.  The
> controls on the Quantum are smoother than the MFJ 1026. No doubt about
> that, but so far, I get too muck loss using the Quantum. All of my
> antennas are with matching transformers and RG6, so I don't see any
> mismatch. If there was one, I would also see it with the MFJ. I will try
> it again later tonight and then tomorrow. I am a bit disappointed so
> far. It might be my set up compared to others. I have no clue, at least
> as yet.

I received my Quantum some time back and have had no luck at all.  When I
null anything, it nulls everything.  I tried (briefly) putting two loops at
opposite ends of my yard, maybe 200+ feet apart.  Same thing.  Dead band
after I nulled a pest.  The MFJ does marginally better.

I also made an temporary phaser with a box with two 1K ohm conductive
plastic pots as a combiner, and a passive tuner as the phase delay part.  It
worked significantly better than either of the other phasers.

I disassembled the Quantum, and found a couple of things I want to change.
For example, an unused switch place on the printed circuit board shorts out
one of the input capacitors.  The MCL transformers are smaller than I like,
and may saturate at high signal locations.  I have already wound new ones
using some 1/2" cores I had.  There are some other things I'm going to try
as well.

Never a dull minute..

Craig Healy
Providence, RI


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