[Antennas] grid dip meter

[Igor Sokolov]

I usually use MFJ 259 for tuning traps in the following manner. I make a
coil (6-10 turns 2 inch in diameter, depends on the band) and connect it to
MFJ. Then put trap in question near the measuring coil and use MFJ as dip
meter. The resonance is pretty well pronounced. Before I got this MFJ I did
similar thing using my transceiver, dummy load  and needle VAM.


73, Igor UA9CDC

> Hello,
>
> I recently made traps for the first time.  I tried to 'tune' them before
> installation
> using the tuned circuit measurement on the mfj259b.  To tune for highest
swr
> or highest
> Z.  Anyway, there is a huge band of Z > 650 and cannot use that to tune
> them.
>
> My heathkit grid dip meter must be broken although there is a meter
> indication, and I hear
> the signal on the receiver, but it never dips.  Most likely operator
error,
> I bought it
> used (working condition) and have never seemed to get it to work.  A
friend
> had one back
> in 1972, and I remember it worked so well, we could dip pieces of aluminum
> tubing, let alone
> tuned circuits.  I like to converse with someone who has a working
Heathkit
> off list to see
> what I am doing wrong.
>
> I ended up tuning them by trial and error.  In almost every case (30M,
40M,
> 80M) they all were
> too low and needed to coax shortened.  It took way more hours than I would
> like.
>
> 73's
>
> Glen K4KV
>
>
>
>
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