To: | <amps@contesting.com> |
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Subject: | [Amps] Homemade attenuator or sampler for 1+kW? |
From: | ilkka.kontola@nokia.com (ilkka.kontola@nokia.com) |
Date: | Fri, 24 May 2002 09:04:12 +0300 |
> I use an HP 778D 20dB directional coupler for this application. 1kW > applied yields 10W at the -20dB decoupled port, then I just > use an ordinary > 20W attenuator (Bird, Narda, HP, whatever -- lots of them > available) plugged > into the spectrum analyzer. I thought the power rating for HP 778D is 50 W average 500 W peak. Usually HP peak rating is for 1 microsecond or shorter pulses and average power rating is average over one second. Thank you for the tip anyway. Ilkka OH3NJC |
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