[Elecraft] Fw: Don't have a 50W dummy load

Don Wilhelm w3fpr at embarqmail.com
Wed Mar 25 15:53:45 EDT 2015


I suspect the TX Gain Calibration would fail due to "High SWR".
Yes, TX CAL will do that.  You need a good 50 ohm non-reactive dummy 
load good to 54MHz.

Light bulbs worked well with old transmitters that had an output circuit 
that could match most anything.  We did not need tuners back then - but 
then along came limited range transmitter output circuits which 
sometimes needed a tuner, but today's transmitters need to see a 50 ohm 
non-reactive load if they are to work properly - and then tuners became 
essential - they just moved the matching network out of the transmitter 
and put the equivalent into another box called an antenna tuner.

73,
Don W3FPR

On 3/25/2015 2:25 PM, Bob Gibson via Elecraft wrote:
>   HOW ABOUT A LAMP WITH 100 WATT BLUB, THATS ALL US OLD GUYS HAD!   73s Bob W5RG
>
>



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