Radiated Power – The Alexander association

This topic has 2 replies, 2 voices, and was last updated 5 years ago by N7MSD Mike.

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12 January, 2016 at 15:33 #4196 Reply

DL2JMB Juergen Brustat
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How much power does the alternator produce,
what is the efficiency of the antenna and
how much power is effectively radiated ?
DL2JMB Juergen
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- 24 December, 2019 at 11:58 #7925 Reply
  
  N7MSD Mike
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  I’ve been wondering this for a long time; those numbers also give some indications of what to expect from most amateur radio setups for 136 KHz / 2,200 meters (and sub-optimal ones on 475 KHz / 630 meters).
  
  Thank you VERY much, Ola! Merry Christmas!
- 17 January, 2016 at 11:03 #4200 Reply
  
  Ola Hernvall
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  SAQ has no facility to measure the output power. The only instrument connected to output is a thermocouple that measures the current from the alterator to the antenna. However, we estimate that the power to the antenna is about 70 – 80 kW and the effectively radiated power from the antenna is about 8 kW.
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