Repeaters: 146.700- Mhz | 146.970- Mhz | 443.700+ Mhz | 445.075- Mhz | PL: 100 hz

174 Years of “Morse Code”

The original Vail key is on permanent display in the Smithsonian Institute USA
Steve K2ALS pointed out that yesterday (01/06/2012) was the controversial 174 anniversary of the first demonstration of the telegraph. The date was Jan 6, 1838 when Morse partner Alfred Vail showed a telegraph system for the first time at the Speedwell Iron Works in Morristown, New Jersey.

Over at “This Day in History,” the lead story for Jan 6, 2012 was “Morse demonstrates telegraph.” This is a controversial topic since it is said that Vail was the real force behind the system and it is the creator of key parts such as the straight key.

On the Elmering Blog there is a great article that covers the controversial topic.

ARISSat-1 KEDR Goes Silent

Reception reports indicate that ARISSat-1/KEDR has stopped transmitting on Wednesday, January 4, 2012. The last full telemetry captured and reported to the ARISSatTLM web site at 06:02:14 UTC on January 4 were received from ground stations as the satellite passed over Japan.

You can view the full telemetry display or the condensed telemetry display.

Telemetry reports showed that the temperature aboard ARISSat-1/KEDR had been rising as atmospheric drag began to affect the satellite. Final temperatures received via ARISSatTLM reported this data:

IHU 75 ° C / 167.0 °F
PSU 76 ° C / 168.8 °F
RF 88 ° C / 190.4 °F
Control Panel 61 ° C / 141.8 °F
Experiment 64 ° C / 147.2 °F

Stations receiving telemetry from ARISSat-1 at any time over the last few months, please forward all of your .CSV telemetry files to telemetry AT

Konstantin, RN3ZF sent a reception report of his copy of the 0842 UTC pass that, "the telemetry was absent, voice messages were not legible, very silent and interrupted. Most likely, I saw last minutes in the life of the satellite."

Dee, NB2F reported, "Nothing heard from ARISSat-1/KEDR on any frequency during the first USA pass at 16:00 UTC, January 4."

ARISSat-1/KEDR was deployed from the International Space Station on August 3, 2011 during during EVA-29 on by Cosmonaut/Flight Engineers Sergei Volkov and Alexander Samokutyaev.

The satellite carried a student experiment from Kursk State University in Russia which measured atmospheric density. Students from around the world provided the voices for the FM voice announcements.

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