[Elecraft] Testing BL1 mini module

Chuck Gehring gehringc at charter.net
Fri Nov 26 13:38:21 EST 2004


I finished assembling a BL1 BALUN Module and decided to test it with my 259
Antenna Analyzer.
The testing procedure calls for you to connect a pair of 100 ohm resistors
in series between the two 200 ohm terminals, then test the SWR with a jumper
connected to the input shield and to three different locations on the
resistors.  The instructions state that the SWR should be low when the
jumper is connected between the input shield and the junction between the
two resistors.  Then it should show poor SWR when the jumper is connected
between the input shield and either one of the BALUN output terminals.   My
tests showed no difference between any of the three connections.  I have
double and triple checked my soldering connections on the BL1.  It is not a
complicated module to assemble.
Has anyone else tested the BL1 with a 259?
Is the BALUN safe to use or should I just stay away from testing equipment
without adult supervision?

73, KI4DGH
Chuck Gehring



More information about the Elecraft mailing list