Monday, December 28, 2015

Monday, December 21, 2015

SARK-110 Vector Impedance Antenna Analyser

Take a look at this video on the SARK!  Great video!

80m Full Wave Loop SWR

This plot is for an 80m full wave loop cut for 3.5 MH fed with over 200' of 450 balanced line.  The measurements were taken with a 4:1 balun inline.  The measurements were taken AFTER the balun.

Click on the image to enlarge.

Multiband Dipole Antenna SWR

This plot is for a 110' multiband antenna fed with 30.9 feet of 300 ohm twin lead.  The measurements were taken with a 1:1 balun inline.  The measurements were taken AFTER the balun.

Click on the image to enlarge.

Sunday, December 20, 2015

How to Solder a PL-259

There are many ways to solder PL-259 connectors.  I find this approach to be quite good. The tinning works great to insure a good connection of the braid to the connector. I use a cable stripping tool to trim the excess shield.  



Sunday, December 13, 2015

Missing ground nut

Not the absence of a ground nut on the 1:1 balun.

Baluns and polyphasers

Baluns and polyphasers will be tired to single point ground by tinned copper strap.

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