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Ham Member Lookups: 416

 

Welcome!  My name's Bill and I live in the foothills of the Sierra Nevada mountains near Yosemite National Park.

I've been licensed since 1969.  I was fairly inactive until a few years ago when some friends and I talked each other into getting back on the air. I've spent most of my career chasing minute amounts of electromagnetic radiation in the 300 Thz band (ie light) down to the single photon level.  Now that I'm getting older and a bit slower, HF is where you'll usually find me. Being able to directly see the phase of the signals I'm working with, using only an oscilloscope, is a real novelty for me.
 
I'm having lots of fun with digital modes these days. It's exciting to see many of the methods used to find weak signals in optics also being used in amateur radio. However, I find the noise problems in the HF bands much more challenging than up at light frequencies. I love the idea of being able to communicate world-wide with only a watt of power and a dipole antenna. Of course with the band conditions as they are now days, it's often more "idea" than reality...but not always! 

 


 

Here's a summary of my current rig:

 
Transciever:  Elecraft K3 (with a 2 meter transverter).
Antennas:      Inverted-V antennas for 20 and 40 meters, up about 30 feet. Vertical dipole for 2 meters. My antennas (and shack)  are on top a hill at 4000 ft elevation.
 
 
For those of you who do JT modes and WSPR here's a bit more info:
 
AD/DA:         SignaLink USB sound card
Computer:    Dell Latitude 15 laptop running MS Windows 7 with FLDigi, WSJT-X, and NTP software. 
Time Base:    Computer clock sync is done with NTP.  Clock accuracy is usually +-2msec or better.
                      My NTP server derives time from two sources:
  1. a stratum 1 GPS disciplined Trimble TS-100 time server connected to my LAN and
  2. the NIST time server group on the internet.
Frequency Base: My K3 transceiver is frequency locked to a Trimble Thunderbolt GPS disciplined 10Mhz oscillator. Frequency accuracy is +-1 Hz (limited by the design of the K3). 
 
 

 

I'll see you on the air.  

 
73, 
Bill 

8221076 Last modified: 2017-07-16 23:54:48, 3360 bytes

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