I am looking at building a step attenuator similar to the Ten-Tec model 290
for my Argo V and I'd appreciate some info.
1) Is the 290 strictly a step attenuator OR does it also have a transmitted
RF sensor circuit to switch the attenuator out during receive?
2) What are the "Six calibrated steps" of attenuation?
3) Has anyone reverse engineered the 290 and developed a schematic they'd be
willing to share?
Thanks.
73,
Rick
VE7TK
Website: http://www3.telus.net/ve7tk
(Note: Yes I am aware that the 290 is designed for use with the Argonaut
series of 5 watt transmitters and the Argo V is a 20 watt rig!)
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