Hi Jon,
You can measure the reactance of a resistor if you have two that are very
close to the same resistance value with either a grid-dip meter or MFJ-259.
Let me go through the MFJ-259 test and you'll see how to apply it to the grid-
dip meter:
1. Measure the low swr frequency of one of the resistors (R1). Calculate the
reactance of the circuit. This will give you the reactance of both R1 AND the
Xc/Xl of the leads etc.
2. Repeat the reading for the second resistor (R2) and calculate total
reactance again.
3. Substract the two readings. This eliminates the circuit reactance and gives
the difference between R1 and R2.
4. Now connect the two resistors in series and measure the total reactance
again.
The change will be the reactance of measurement in step #1 plus the reactance
of R2.
You now have the difference and the sum of the reactance of the two resistors,
so you can solve the two equations, i.e.
X(R1) - X(R2) = 3
X(R1) + X(R2) = 7
X(R1) = 5
X(R2) = 2
I don't know is the MFJ-259 is able to "dip" within its range to give you a
frequency. If not a good grid-dip meter should do it.
Good luck, and let us know how you make out.
Joe, K0JN
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