[Elecraft] Testing BL1 mini module

[Charles Greene]

Chuck,

I don't have one, but I have the manual and have studied it and the 
balun.  I would test it by placing the 200 ohms across the antenna 
connections, and connect the 259 to the 50 ohm connection.  It is a voltage 
balun, but should have a decent SWR from 3.5 to 29 MHZ when so 
connected.  If it still doesn't read 1.2:1 or less, check your connections 
of all the wires.

Chas, W1CG

At 01:38 PM 11/26/2004, Chuck Gehring wrote:
>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
>
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