Ian White GM3SEK wrote:
The 854 that I reviewed for Radcom was the same. We both got one that
had the core assembled upside-down, so instead of showing you how to
snap the plastic catch open, the instruction manual shows you how to
break it.

I'm trying to figure out how I can make more effective
measurements on coiled coax chokes with the equipment
that I presently have. I can measure the impedance with
my MFJ-259B if it is less than 650 ohms.

I also have a GDO. If I get an open circuit dip, would
that be the parallel resonant frequency? If I get a
short circuit dip, would that be the series resonant
frequency?

I also have a dual-trace 100 MHz Leader o'scope. I
should be able to find the resonant frequencies
by watching the voltage drop across a series resistor.
I also have the X-Y feature so I could look at the
source voltage, voltage across the choke, and voltage
across the resistor as the frequency is changed.

What do you think?
--
73, Cecil, http://www.qsl.net/w5dxp