Get active on the new FT8 digital mode with help from Barry Feierman’s, K3EUI, article “Join the FT8 Revolution” in the January 2018 “DIY” issue of QST. The digital edition goes live on Friday, December 8! #qst #arrl #hamradio #diy pic.twitter.com/zDZI1VtbTE— ARRL (@arrl) December 4, 2017
One easy way to determine the best orientation for your antenna is to use an azimuth map; a world map which has been set so that all the directions on that map are real antenna directions from one central point.
These maps allow you to see the compass bearing from your QTH to other DXCC entities.
Free azimuth maps may be generated using these on-line services:
At 06:50 UTC November 23, 2017 @AMSAT Engineering officially commissioned AO-91 (RadFxSat/Fox-1B).— N0JY (@n0jy) November 23, 2017
N0JY turned over operation to N8MH and AMSAT Operations in a QSO on the AO-91 repeater during the pass over the Eastern U.S.
N8MH responded and declared AO-91 open for amateur use!
With the successful launch and impending activation, of AO-91, now is a good time to join AMSAT and receive a digital copy of "Getting Started with Amateur Satellites" for free! Visit https://t.co/XkA44YOTsR and help us Keep Amateur Radio in Space. #amsat #arrl #hamradio pic.twitter.com/Wakzm095TS— AMSAT (@AMSAT) November 20, 2017
A dummy load is a piece of equipment which allows transmitter testing and adjustment with minimal radiation of RF energy.
Most dummy loads are constructed using non-inductive resistors and utilize various heat sinking methods, ranging from passive air cooling (e.g. Elecraft DL-1, MFJ-261) to submersion in non-conductive oil baths (e.g. Heathkit Cantenna, MFJ-250), to dissipate the transmitter power.