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The impact of trees on radio propagation, 8th December 2016

The Impact of Trees on Radio Propagation

John Dawes VK5BJE/VK5PF

This paper came about because Paul, VK5PAS, was told by a European amateur, who in responding to a photograph of Paul’s portable station, suggested his antenna was too close to trees and that this would impact negatively on propagation. 882 more words

Amateur Radio

CAS-4A and CAS-4B to have Ham Radio Linear Transponders

CAMSAT is working closely with a Beijing Government aerospace contractor to build two satellites with amateur radio linear transponder payloads.

Both will carry a 435/145 (U/V) 20 dBm (100 milliwatt) SSB/CW linear transponder, a 2m CW 17 dBm (50 mW) telemetry beacon and an AX.25 4.8 kbps GMSK 20 dBm (100 mW) telemetry downlink. 87 more words

Daily Updates

Updates from the ham shack

I just got word that Radio Australia & ABC Shortwave are both shutting down. Just as I was preparing to write this blog post. It made me think twice about the future of ‘amateur’ radio. 917 more words

HF Antennas

Amateur Radio This Week: #49

I didn’t accomplish all I had set out to do again, but I did finally log all of the contacts from my phone.  I had contacts back through October that had not been put on paper. 152 more words

Ham Radio

75th Anniversary Attack on Pearl Harbor SSTV

I will be operating SSTV from Hawaii on 7 DEC 2016, the 75th Anniversary of the attacks on Pearl Harbor.

I will start monitoring about 7:45 in anticipation of the 7:55 time of attack. 25 more words

Amateur Radio

SOTA - Devils Peak Brindabella National Park

Saturday 3 December 2016.  It’s a warm summer day in Australia’s Capital Territory Canberra with a top of 30 degrees C, a perfect day to tackle two summits in the Brindabella Ranges 30 km west of Canberra.  1,120 more words

SOTA

President Lincoln II V3 Discontinued

Guess we all knew it was coming but now confirmed. The Lincoln II V3 has popped up as discontinued. This makes way for the continued sale of the Lincoln II + which came on the scene recently and reportedly will go to the USA during 2017 which many are excited about… 160 more words

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