November, 2009   The Milliwatt   < Prev Page 4 Next >

 

The 2010 ARRL Handbook: Our Biggest — and Best — Ever!
With more than 60 authors and reviewers contributing over 70 percent of new or completely revised content, The 2010 ARRL Handbook for Radio Communications is the biggest Handbook ever. Since it was first published in 1926, the Handbook has been a mainstay for the radio electronic experimenter. A core resource for radio amateurs, hobbyists, engineers and scientists, the Handbook is the single most authoritative reference on practical communications topics. It is both reference book and tutorial, woven together with practical applications and solutions. The 2010 Handbook — the 87th edition — is both a useful introduction to radio communication and features the most current material on electronics and Amateur Radio.

 

IRCs: Out with the Old, In with the New < br> The Beijing Model No 2 IRC must be redeemed before December 31, 2009. The Nairobi Model IRC is now available at US post offices. It will expire in 2013. It is now time to start dumping your old International Reply Coupons (IRCs): The "Beijing Model No 2" must be redeemed before December 31, 2009.According to The Daily DX editor Bernie McClenny, W3UR, many QSL managers are now only accepting thenew Nairobi Model IRC, so he advises that it is now time to start getting rid of the old IRCs and not get stuck with any! The new IRC, available in the US since September 10 and elsewhere since July, costs $2.10 each in the US. For those in the US who will be exchanging the old version of IRCs for new ones, USPS Bulletin #22267 advises postal workers to tell customers "to exchange IRCs that expire on December 31, 2009 for the new IRC version (Item 330800) or for other postage stamps. Retail associates (RAs) can exchange unused US-issued IRCs for $0.01 less than the value of the IRC. (The amount to exchange is the printed price of the IRC along with any additional postage affixed minus one penny.)"

 

VK ATV DTV TEST A SUCCESS
Amateur television down-under is going digital. Barry Robinson, VK3PV, has the details: A digital uplink test has been held at the Mt Dandenong site of the ATV repeater VK3RTV with four stations participating - VK3GMZ, VK3KHB, VK3TRX and VK3CH.This test session on Saturday the 19th of September result in all stations being received at Mt Dandenong, reports Peter Cossins VK3BFG, with no errors or pixilation. The digital uplink standard for the repeater is DVS-S Satellite. Experiments with power levels demonstrated that low power operation is possible. Mick VK3CH at Thornbury was successful with just 150 milliwatts, which must be some kind of ATV record covering a distance of 30 kilometres. The VK3RTV Controller is almost finished and it is envisaged that full Digital operations will commence around the end of the month. VK3RTV will take both analogue and digital input signals, but the output will be DVB-T, which is the standard used by commercial TV stations. The upgrade to VK3RTV was funded by Amateur Radio Victoria with the Wireless Institute of Australia also covered part of the cost through its Club Grants Program. And no matter where you might be in the world, if you operate a ham radio A-T-V repeater and have or are in the process of converting to digital operation, please drop us a note to newsline at arnewsline dot org. Include the call, location, service area and the digital standard you will be using. We will collate the data and eventually post it on our website at www dot arnewsline dot org. (WIA News via AR Newsline)

 

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