[Antennas] balun question

George, W5YR [email protected]
Sun, 14 Apr 2002 21:37:04 -0500


John, some baluns may have a winding across the coax input terminals. To
check, disconnect the coax and check it alone with an ohm-meter with both
ends disconnected. Then check the coax input terminals of the balun.

Curious: what problem(s) prompted you to look at this?

73/72/oo, George W5YR - the Yellow Rose of Texas         
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe   
Amateur Radio W5YR, in the 56th year and it just keeps getting better!
QRP-L 1373 NETXQRP 6 SOC 262 COG 8 FPQRP 404 TEN-X 11771 I-LINK 11735
Icom IC-756PRO #02121  Kachina 505 DSP  #91900556  Icom IC-765 #02437


John Geiger wrote:
> 
> I have a Van Gordon 4:1 balun that I use on my
> homebrew G5RV antenna.  It goes between the 300 ohm
> twinlead and the 75 ohm coax.  While doing some
> checking on my different coax runs this weekend,
> noticed that the coax for the G5RV is shorted between
> the center pin and the braid.  Traced the short back
> to the balun.  Is this normal for a 4:1 balun-to have
> the center pin and outside connector shorted, or did
> mine go bad.  Any feedback is appreciated.
> 
> 73s John NE0P