Altronic Research, Inc is a designer and developer of multiple RF Coaxial Dummy Loads. We produce dummy loads in the air cooled, water cooled, oiled cooled and soda cooled categories. We also specialize in manufacturing heat exchangers.
A dummy load is a device used to simulate an electrical load, usually for testing purposes. In radio a dummy antenna is connected to the output of a radio transmitter and electrically simulates an antenna, to allow the transmitter to be adjusted and tested without radiating radio waves. In audio systems, a dummy load is connected to the output of an amplifier to electrically simulate a loudspeaker, allowing the.
Dummy Load : Home brew dummy loads – The DXZone.com, Dummy Load : Home brew dummy loads – The DXZone.com, Dummy load – Wikipedia, Dummy Load : Home brew dummy loads – The DXZone.com, A good design of dummy load can be found in the project A Switched Dummy Load , also in this book. An RF power meter and frequency counter will also be useful, although if your receiver has a digital frequency readout and S-meter, the latter two items are not really necessary. You will also need a 12 V 1 A power supply unit (PSU) to power the …
method, the thermal resistance of the load in 15°C ambient is approximately 1.3°C/W without the fan running and 0.5°C/W with the fan spinning at full speed. Clearly the fan makes a big difference and is worth including. This implies that 120 Watts RF output will drive the resistors to approximately 75°C if maintained over several minutes.
