Saturday, May 31, 2008

Digital Mode of the Week: PSK31 (Part 1 - Varicode)

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Varicode is a Huffman code for use in PSK31 narrow band teleprinting. PSK31 is a binary phase-shift keyed, 31.35-baud mode designed for dire...

STS-124 Countdown Continues

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Launch is still scheduled for around 2104 UTC today (Saturday). The astronauts are presently entering the spacecraft. Allan Stern has heard ...
Wednesday, May 28, 2008

STS-124 Tentative Launch Is Saturday

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Shuttle Discovery's STS-124 mission to the International Space Station is scheduled to lift off at 5:02 p.m. EDT [2102 UTC] on Saturday...
Sunday, May 25, 2008

Digital Mode of the Week: HFDL

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HFDL stands for High-Frequency Data Link. It is the HF band portion of a comprehensive, global, air-ground, communications system that also ...
Saturday, May 24, 2008

Interesting RTTY Message from KSM 24 May 08

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KSM is the commercial station at the Maritime Radio Historical Society, Pt. Reyes, CA (at the old RCA/MCI maritime and point to point site)....
Monday, May 19, 2008

Digital Mode of the Week: PACTOR

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PACTOR® (from Latin "the mediator," also a possible play on PACket plus amTOR) was developed by German hams in the early 1990s. It...
Thursday, May 08, 2008

FCC Denies Miller Digital Bandwidth Petition

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In a Report and Order in the matter of RM-11392, the FCC has denied a rule making petition by amateur Mark Miller regarding bandwidth and fr...

Armed Forces Day SECDEF Message This Saturday

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From Army MARS : SECRETARY OF DEFENSE MESSAGE TEST VIA DIGITAL MODES. The Secretary of Defense message will be transmitted via digital modes...

US Army Corps of Engineers QSL Opportunity

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From Jim Pogue: Once again, station WUG-231 will offer a special QSL card for SWLs only who hear our station during the ANNUAL ARMED FORCES ...
Wednesday, May 07, 2008

Digital Mode of the "Week:" HF Packet

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This is early because I'm going on vacation. --- "Packet Radio" is an amateur mode used to send data between terminals attache...
Sunday, May 04, 2008

Digital Mode of the Week: ASCII

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ASCII stands for American Standard Code for Information Interchange. It was developed in the United States as a standard means of encoding ...
Friday, May 02, 2008

KSM Encrypted Broadcast WILL Take Place May 3

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KSM's intrepid transmitter engineer has recovered sufficiently to come to the station and make the encrypted RTTY and SITOR-B broadcasts...

IARU Simulated Emergency Test Is May 3

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For us, the most interesting feature of this event is the use of Automatic Link Establishment on amateur frequencies. From International Ama...

US/NATO Joint Exercise On Until May 14

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From Combinedendeavor.net Welcome to Combined Endeavor 2008! This annual, United States European Command (USEUCOM)-sponsored exercise is “in...
Thursday, May 01, 2008

Charles Brain's Web Site Vanishes

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Those looking for Charles Brain's web site with the "official" distributions of PC-ALE and PC-HFDL got a rude surprise today ...
Wednesday, April 30, 2008

Pacific Air Route Map

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This was made by plotting several hundred aircraft position reports with PC-HFDL and Posfix, then layering the resulting maps with Photoshop...
Sunday, April 27, 2008

Digital Mode of the Week: SITOR

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SITOR stands for Simplex Telex Over Radio or Simplex Teleprinting Over Radio. It uses the same type of frequency-shift keying (FSK) as RTTY....
Saturday, April 26, 2008

No KSM RTTY Today

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As you might have noticed, there was no RTTY or FEC SITOR from KSM on Point Reyes, CA today. Your radio is fine. They didn't transmit i...
Thursday, April 24, 2008

KSM Encryption/ Decryption Exercise 4/26 and 5/3

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KSM, a licensed commercial station using vintage equipment and antennas at historic KPH on Pt. Reyes, CA, will be doing a very interesting b...

International Marconi Day is April 26

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International Marconi Day is a yearly amateur operating event also of some interest to utility listeners. This year, it lasts from 0000 UTC ...