I once [1959] measured the efficiency of a 10 KW FM broadcast
transmitter using a variant of Ron's suggestion. Came within 0.9% of
the value eventually measured on a water-cooled dummy load -- which was
about the accuracy of my K&E Log-Log Duplex Vector rule. Never
underestimate the ingenuity of us old guys. :-)
73,
Fred K6DGW
Sparks NV USA
Washoe County DM09dn
On 11/3/2016 4:12 PM, Dauer, Edward wrote:
I loved Ron’s (AC7AC’s) alternative method for measuring power losses
in an ATU (reprinted below.) But if I remember my high school
physics correctly, wouldn’t one have to know the specific heat, and
the mass, of every bit of matter in the enclosure that participates
in the thermal equilibrium in order to calculate the energy loss from
the temperature rise? That made me wonder if Ron offered it
tongue-in-cheek.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
