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.
RadFxSat (Fox-1B) was sucessfully launched on a Delta II rocket from Vandenberg Air Force Base at 1:47AM PST on November 18, 2017, and has been heard over Europe.
#Fox1B sound & Alive over Europe 😀😀 well done to all the teams involved #amsat #hamr @AmsatUK @AMSAT pic.twitter.com/2w07c5T5Ne
— Abdel (@M0NPT) November 18, 2017
New Digital Modes Changing Complexion of Bands and Perhaps of Ham Radio https://t.co/MQhKsncHYv #ARRL #HamRadio pic.twitter.com/AC2oCaqRtl
— ARRL (@arrl) November 2, 2017
UTC Approvals to Use 630- and/or 2,200-Meter Bands Arriving via E-Mail https://t.co/5FGdIwgHAv #ARRL #HamRadio
— ARRL (@arrl) October 16, 2017
Amateur Radio Operators in the United States have access to a large amount of microwave spectrum:
This spectrum is available to all Hams, Technician class and up, and is a great place to contribute to the advancement of the radio art through experimentation and homebrewing. It also needs to be used or it will be given away.
