[HCARC] MFJ-259B or Later Version

[galeheise at windstream.net]

Does anyone is the club have an MFJ-259B or later model that will provide a readout of Resistance, Reactance and Frequency that I could either borrow or come to your place to perform a measurement?

I’m building a full wave loop for 30 meters and planning a center resonant frequency of 10.125 Mhz.

In order to match this antenna to a 50 ohm coax I’m building a 1/4 wave 75 ohm series matching transformer.

I have a PL-259 connector on one end of the 75 ohm cable and a 100 ohm composite resistor (Per the Design) on the terminating antenna end.

I need to attach the transformer to an MFJ-259B or later version and adjust the frequency until the reactance reads 0, which is the resonant point of the line transforming the 100 ohm load to 50 ohms.  I’ve cut the 75 ohm transformer cable long and need to trim the length until I have no reactance at 10.125 Mhz.

So, I can either borrow the Analyzer and return it or just bring the cable and my tools to trim the cable to length at your place.

Appreciate the help.

Gale
KM4DR