You are currently browsing the Milliwatt weblog archives for the day November 27, 2007.
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Archive for November 27, 2007
‘Stealth’ antenna made of gas is impervious to jamming
November 27, 2007 by kb3ljm.
A new antenna made of plasma (a gas heated to the point that the electrons are ripped free of atoms and molecules) works just like conventional metal antennas, except that it vanishes when you turn it off.
That’s important on the battlefield and in other applications where antennas need to be kept out of sight. In addition, unlike metal antennas, the electrical characteristics of a plasma antenna can be rapidly adjusted to counteract signal jamming attempts.
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Posted in Miscellaneous | Comments Off
National Packet Radio Registry
November 27, 2007 by kb3ljm.
USPacket.org is happy to announce our National Packet Radio Registry.
This is a registry for US Packet operators who would like to exchange Packet mail with other radio hams.
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FCC Clears Florida Ham
November 27, 2007 by kb3ljm.
The FCC today released a letter clearing Raymond W. Czyzewski Jr, WA2SEI, of Interlachen, Florida, of allegations he had caused interference and had sent threatening communication. On September 14, the FCC’s Enforcement Bureau notified Czyzewski of a complaint alleging he “interfere[d] on the Six Meter Amateur band on June 19, 2007. The complaint also enclosed a threatening communication apparently from you to the complainant subsequent to the incident.” Czyzewski was given 20 days to respond and was directed to “support your response with a signed and dated affidavit or declaration under penalty of perjury, verifying the truth and accuracy of the information submitted in your response.” Czyzewski replied on September 24, according to the FCC, “and fully explained the operation on the date cited in the complaint. ” The Commission accepted Czyzewski’s response and found “that no enforcement action is appropriate.”
http://www.arrl.org/?artid=7864
Posted in ARRL Web Extra | Comments Off