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ND6P USA flag USA

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I was first licenced in 1965 at the age of 17 in Los Angeles County and am currently living in Burbank, CA.  After retiring in 2013, working 40 years in electronics and information technology, I have more time to work on my station and operate now.

Station here is a Kenwood TS-590SG and a SDRPlay/HDSDR panadapter. My amplifiers are an Acom 1000 and an Ameritron AL80B.  I've modified the AL80B with vacuum relays for quiet and fast T/R switching.  My antennas are a 20-10 meter hexbeam at 40 feet, a 40/80/160 meter trap-dipole/vertical, and a 30 meter quarter-wave vertical.  I also have a receive loop-antenna for 80 and 160 meters. And I use an Elecraft K2CR band decoder with a Rat Pak antenna switch to automate antenna switching.  The K2CR gets power from the AT connector on the TS-590 via a two second power-on-delay relay.  Powering the K2CR this way allows the auto-band-switching to sync up automatically when the TS-590 is turned on.

The photo below shows the feed system for my 40/80/160 trap-dipole/vertical.  A 40/80 meter trap dipole is hung from the top of the mast and a remote switchbox and loading coil are used at the base to switch to vertical operation on 160.  For 160 meter operation, the switch box ties the feedline center conductor and shield together and inserts the coil to resonate and match the antenna. The coil is from an earlier antenna that needed more inductance. Only the lower third of the coil is being used now.

Here is the diagram for the switchbox.

Diagram of my 80-160 meter receive antenna ...

Diagram of the receive antenna control ...

Photo of the new relays in my AL80B ...

Photo of my operating position ...

And my station diagram ...

73 - Jim/ND6P

 

8085908 Last modified: 2017-05-09 23:13:46, 2542 bytes

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