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Old December 6th 13, 06:33 PM posted to rec.radio.amateur.antenna
Ralph Mowery Ralph Mowery is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 702
Default MFJ259 conversion help


"amdx" wrote in message
...
).

At a freq of 100 MHz I measured a 100 ohm resistor R = 100 SWR = 1.9
Then a 100 in series with 30pf (Xc=53 ohms) R = 85 SWR = 2.4
Then 100 ohms in parallel with 30pf R = 25 SWR = 6

This is not what I expected, so I've learned something.
I have equipment to measure up to 10 MHz, and I can measure
Q up to 50MHz.
I was hoping to use the MFJ259 to do something at higher frequencies.
I don't think this is the direction I should be looking.


I am not sure what ou are trying so may be speaking out of turn again.

With the resistor and capacitors, have you tried adjusting the frequency for
the lowest SWR to see what the R value is at that frequency ?