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Topics - Hutch

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Radio Reviews, Questions and Comments. / My first HF transceiver
« on: July 30, 2016, 11:16:30 PM »
After a lot of study, agonizing, deciding, undeciding and final, this is IT resolution...

I bought a Yaesu FT-857d, plus a Signalink USB TNC.  These seem to figure prominently in folks' EMCOMM kits.  Glad that decision is behind me.  I plan to build my home station in an audio gear travel case.  (One with wheels and a pull-up handle).  This will allow me to take to the field with the same kit I operate at home.

This gonna be a lot of fun!

Thanks for letting me share.

Antennas / Not happy with Hamtennas
« on: July 25, 2016, 05:13:58 PM »
I was actually in HRO in Atlanta a few weeks back, and asked one of the folks there about the Chameleon "stiff dipole" arrangement using an MPAS as the basis.  He suggested getting an MFJ-347 HF stick mini dipole mount.  It was attractively priced, and I got that, and a pair of a sticks for 40m, and a pair for 75/80m.  NVIS, don'tcha know.

Damn.  The mount itself seems to be beautifully made.  I plugged the 40m Hamtennas in, and tested it with my MFJ-259c antennalyzer.  Min SWR at ~ 6.8mhz.  No real problem there, just shortened the stainless steel whips an equal amount on both sticks.  Got a minimum SWR of 1.5, right in the middle of the 40m band, about 7.145.  Swept the analyzer to the lower edge... SWR 8.8.  Swept to the upper edge of 40m, SWR 10.5.  No integrated antenna tuner is gonna match that.  Sent in the symptoms to MFJ, and called them today for a consult.  Their response was, essentially, "working as designed".  I'm thinking I pissed away a hundred bucks.  This was going to be part of my portable station gear, but I don't see how it will work for that, now.  Guess I'll ditch this, or maybe figure some other use case.

Antennas / Inverted Vee dipole, legs not collinear
« on: July 19, 2016, 12:55:36 PM »
New friends, I found this,site a few months back, and joined to pose this question:

I am planning to put up a permanent inverted Vee dipole for NVIS operation.  I will not be able to run the two legs in a straight line, more like a shallow Vee (as viewed from above), likely bat 20 degrees off straight.  Is this going to work?  What might be the affect on radiation pattern?  My plans are to used a trapped dipole that will be a full half wave for 40m, and trapped for 80.  Center point should be ~30 ft above the house, with the ends being almost to the roof of my one-storey house, call it ~ 12ft AGL.


Hutch, the noob.

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