July 5, 2007 by kb3ljm.

The ARRL has sent out more than 100 letters to repeater owners/trustees who have repeaters affected by the “Pave Paws” radars (PPR). Citing an increasing number of interference complaints, the US Air Force has asked the FCC to order dozens of repeater systems to either mitigate interference to the Pave Paws radars or shut down. The ARRL is working with the US Department of Defense (DoD) to develop a plan to mitigate alleged interference from 70 cm ham radio repeaters to this military radar system on both coasts.

http://www.arrl.org/news/stories/2007/06/11/100/

Posted in ARRL Web Extra | Comments Off

July 5, 2007 by kb3ljm.

South Africa’s Space Research Institute says Radio Amateurs can do much to heat up the ionosphere and improve DX conditions, this the SARL was told by a prominent space weather researcher. “By many amateurs transmitting at the same time the resultant RF hitting the ionosphere will cause it to ionise and become active like during the high sunspot years”, he said. He made the point that during major DX contests the 10 metre band opens up while the day before and the day immediately after the contest the band is dead. This conclusively proves the point that high RF levels impacting on the ionosphere does the trick. (sarl news, via RAC home page)

Ed Note: We ran this before but it merits repeating… Believe it or not!

Posted in DX | Comments Off

July 5, 2007 by kb3ljm.

Approval has been granted for the use of the Special Prefix “VR10″ in addition to “VR2″ for Hong Kong Radio Amateurs starting from the 1st of July 2007 to the 30th of June 2008 for the 10th anniversary of Hong Kong’s reunification with China. More details are available in the OFTA letter for Hong Kong Radio Amateurs, which can be found at www.ofta.gov.hk/en/amateur/ama-cir200706.pdf.

Posted in DX | Comments Off