Thanks for replies
I will borrow a Bird meter to see what it say but I think in this case the error is in the K3 and not the P3. as one mentioned a reading of 1:1,1 vers 1:1,2 is neglegable but this is a error by a whole number 1:1 vs 1:2
My concern is that if its really a 1:3.5 and it thinks its a 1:2.5 is the K3 still doing its job for protection or is this protection sensed elswhere.
The coax between the K3 and the sensor is about a foot so very close. but as some said it should not be a big difference. and I understand that the K3 is probably one of the most tolerant rigs out there for SWR. My concern is when I am using an antenna say a doublet where the tuner is not able to get it to a perfect match. say only to a 2:1 where if the K3s SWR internally is misreading it and its really a 3:1 that is getting a little out of its safe zone and it should start to roll the power back or will it? if its reading lower than what it really is it may not roll the power back as early as it should.
David Moes VE3SD On Friday 04/11/2016 at 6:59 pm, [email protected] wrote:
I recently installed the TX monitor in my P3 and have a discrepancy with the SWR reading between it and the K3 with a dummy load connected the P3 and K3 read 1.12 and 1.0 respectively a level of error that is to me quite acceptable. however when connected to an antenna I will see the SWR on the K3 often close to 1:1 when the P3 will show up to a 1:2. as the SWR climbs above 1:2 on the P3 the K3 reading will track it fairly closely but about a level of 1 below. example K3 1:1 P3 1:2, K3 1:1.5 P3 1:2.5 K3 1:2 P3 1:3 and so on Note that this is done with the KAT3 bypassed of course. it made me wonder which is correct. so I put in a meter. old but faithfull KW electronics meter seems to track much closer to the P3's reading which makes sense since the chances that my dipole would have a wide are at a solid 1:1 match before climbing as I move away from resonance makes me wonder if the K3's SWR readings are out of calibration and if this can be adjusted. my concern is that I may be excepting the SWR from the KAT3 when it may be in fact a little too high for the amps safety. The power readings from both seems to be quite close. Any thoughts? David Moes VE3SD ______________________________________________________________ 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]
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