Sunday, December 31, 2006 Zulu
KE6QR for CM88, me 4.9W, on 1827.21 at 0720Z.


- posted by Leigh @ 07:21 z 0 comments
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K6RB on 1825 for CM87 at 0718Z.


- posted by Leigh @ 07:14 z 0 comments
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KC7V on 1822.77 for DM43 at 0712Z, 4.9W.


- posted by Leigh @ 07:13 z 0 comments
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KI7Y Stew Perry
I worked KI7Y on 1.818 MHz at 0704Z for CN85 with 4.9W in the Stew Perry Topband Challenge.


- posted by Leigh @ 07:05 z 0 comments
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I worked Bill K6ACJ on 7296 USB when he was mobile and I was running 15W.


- posted by Leigh @ 00:04 z 0 comments
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Saturday, December 30, 2006 Zulu
NESCAF Switched Capacitor Filter
Nescaf front Nescaf side

I built the NESCAF Switched-Capacitor filter from New England QRP. I put it in a case from QRPKits, and it just barely fits. I broke the DPDT switch trying to bend a tab (don't do that), so I will have to replace it. I also made the holes for the two pots a bit close together, so it looks a little beady eyed. Two more holes to go.

It still picks up KGO when I hook it up to my K2 and the 550' loop. I've noticed LM386's seem to do that around here. Maybe it'll be better when I get it in the case.


- posted by Leigh @ 04:59 z 0 comments
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Friday, December 29, 2006 Zulu
Buddipole at PARC
Today at lunch I took the Buddipole and KX1 outside at PARC. It was windy so I used the bag to Velcro to the railing and then the tripod. It was too windy to enjoy myself, but I did hear quite a bit of band activity.


- posted by Leigh @ 00:54 z 0 comments
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Thursday, December 21, 2006 Zulu

One of my ham friends from childhood, Bob Lee, died yesterday. Bob moved to town when I was a little kid, and brought with him tons of engineering books, equipment, and stories from his days at Aerojet General in Sacramento, California. For about ten years, every Saturday morning, my father and I would visit Bob. He was always ready to teach me something, or listen to my latest ill-informed theory, either at his house or by telephone.

Bob was an inveterate tinkerer, first with radio and later with small computers and finally software. Bob had the first micrprocessor I ever used, a Fairchild F8, and he had it hooked to a Model 33 TeleType. I remember studying the machine instruction card, trying to think of what to do with it. I think we finally added two bytes together, and were sure it wasn't working, becuase it was done before the carriage had returned and the paper had fed a line.

Bob had retired from Aerojet after brain surgery left in paralegic, and eventually the ensuing infirmities caught up with him. I miss those Saturday morning visits.

- posted by Leigh @ 20:58 z 0 comments
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Wednesday, December 20, 2006 Zulu
Around 0350Z we talked to N5LK on 10.110 after trying and failing on 20m. There he could hear me barely but not vice versa. I heard him right off on 30m and we had a short QSO but the QSB and noise were a problem. Also K8RNM NAME:CC in Ohio gave me a call and we had a short QSO but were unable to sustain the rag chew because of the deep QSB. That was 2359Z.
- posted by Leigh @ 00:07 z 0 comments
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Sunday, December 17, 2006 Zulu
I cranked the SteppIR up to 30' and worked P40TA in QTH:Aruba on 14081 for 599 and sent 599, POWER:14W.


- posted by Leigh @ 23:07 z 0 comments
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What mode?
What is this mode? Each channel is the width of PSK63. Update: I got the answer; it's the HF Clover Email net.
- posted by Leigh @ 22:37 z 0 comments
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Saturday, December 16, 2006 Zulu
Flash: FCC Ends Morse Code Testing

ARRL Reports:

End of an Era: FCC to Drop Morse Testing for All Amateur License Classes
... In an historic move, the FCC has acted to drop the Morse code requirement for all Amateur Radio license classes. The Commission today adopted, but hasn't yet released, the long-awaited Report and Order (R&O) in WT Docket 05-235, the "Morse code" proceeding...the FCC only issued a public notice at or about the close of business today and not the actual Report & Order, so some details -- including the effective dates of the two orders -- remain uncertain. Currently, Amateur Radio applicants for General and higher class licenses have to pass a 5 WPM Morse code test to operate on HF. Today's R&O will eliminate that requirement all around.

The US joins Canada and other countries in eliminating the morse code testing requirement, after being authorized to do so on July 5, 2003, when the World Radio Telecommunications Conference 2003 in Geneva adopted changes to the ITU Radio Regulations.

- posted by Leigh @ 07:34 z 1 comments
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Cosmac Elf 2000 alive!
We finished the SpareTime Gizmos version of the Cosmac ELF 1802.


- posted by Leigh @ 07:27 z 0 comments
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Sunday, December 03, 2006 Zulu
ARRL 160M Contest

I operated in the 160M Contest with my K2 at 5W and 550ft loop.

Call Report Section Frequency Time
???? 599 LAX 1800.84 0327Z
WA7LNW 599 UT 1807.02 0416Z
W6XX 599 UT 1807.02 0416Z
NT6K 599 SV 1814.51 0426Z
K9YC 599 SCV 1838 0525Z
N6RO 599 EB 1836.51 0525Z
K6RB 599 SCV 1840.000535Z
N6ZFO 599 SF 1842.34 0540Z
W6JTI 599 SF 1843.95 0540Z


- posted by Leigh @ 05:40 z 0 comments
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Saturday, December 02, 2006 Zulu
I played Spacewar on the PDP-1

Pdp1 Spacewar
I played Spacewar on the PDP-1 at the Computer History Museum. Steven Russell was there, I got to ask him some questions. They also had some PDP-1 music, but had lost the original music program so wrote a new one to play the old music.

Minskytron on the PDP-1. It seems to be a three-body simulation that eventually goes chaotic, perhaps because of limited precision in the simulation.

Photo 1333
PDP-1 screensaver.

Becky and a PDP-10.

- posted by Leigh @ 03:40 z 0 comments
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