September 11, 2007 by kb3ljm.

NATO (the North Atlantic Treaty Organization) has issued a report of the expected effects that widespread BPL application would have on the HF spectrum. Particular emphasis is placed on ambient noise in “quite rural” zones and the “Absolute Protection Requirement”. The calculations assume ubiquitous installation of BPL. The report concludes: a) High probability that BPL would cause increased noise levels at sensitive receiver sites given the projected market penetration; and b) The percentages are highly influenced by assumptions on transmitter EIRP, BPL market penetration, and duty cycle.” The entire report (9MB) can be downloaded at: http://ftp.rta.nato.int/public//PubFullText/RTO/TR/RTO-TR-IST-050/$$TR-IST-050-ALL.pdf [WIA]

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September 11, 2007 by kb3ljm.

When sending cards to confirm 1×1 call signs, the ARRL QSL Service requests you note somewhere on the card the person who requisitioned the call sign. This will expedite routing to the proper station and may result in quicker processing of cards handled through the ARRL US Incoming Bureaus. To locate the person responsible for a 1×1 call sign, please visit the NCVEC’s 1×1 Special Event Call Sign Web pagehttp://www.ncvec.org/1×1.php and enter the 1×1 call sign. When the screen appears, select the 1×1 call sign based on the event you worked. Click “Details” on the right-hand side of the page to determine the person responsible for the operation (see “Requisitioned By”). Remember, call signs may be issued more than once, so following the above procedure will allow the QSL Service to direct it to the proper person. For more information on frequently asked questions concerning the ARRL DXCC program, please see the DXCC FAQ page http://www.arrl.org/awards/dxcc/faq/

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