Hi to get a swr 2, just use a T bnc and put 2 dummy load on it, then they will
be in parallel, 25 ohm. The other is to put 2 dummy load in serie, but that is
not so easy, to get 100 ohm.
73, oz8pz Stig
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Den 27. feb. 2025 kl. 15.27 skrev Greg McCain via groups.io <gamccain50@...>:
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I'm hoping the smarter folks here can help me create some dummy loads with higher SWR's.
I'd like to do some temperature delta measurements without putting signals on the air since I want to include some high duty cycle scenarios at the typical 4-5 Watts outputs of my QMX's and QDX's.
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I Googled this idea but only got hundreds of hits on the general topic of SWR.
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Perhaps SWR's of just 2 and 3.
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I think I should limit it to those values just because there is plenty of evidence that even short bursts of TX into very high SWRs or open loads is a generally bad idea without super fast protection built into the TX circuit chain.?
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Thanks in advance,
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GREG? KI4NVX
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