Chip, I have found many KAT2s that underreport the SWR. There is no harm in setting the REFL pot to maximum if that is what it takes. The KAT2 is not a precision wattmeter when it comes to SWR - the reflected power detected allows it to tune for an SWR minimum, no matter what that value may be - so the tuner function is not hurt even though the SWR reported is less than actual.
73, Don W3FPR On 8/15/2011 10:40 PM, Chip Stratton wrote: > I have a recently obtained K2 with KAT2 module that I am trying to get up to > speed. I'll have more questions and data later, but to start with I have a > question about calibrating the SWR readings. > > After going through the procedures in the manual, I find that the KAT2 under > reads SWR. When the load is 50 ohms resistive, it shows 1:1. When SWR is > higher, e.g. an almost purely resistive 7:1 (according to a Rig Expert > AA-230) the KAT2 reads 4.5:1 > > I've calibrated forward power with a DL1 dummy load. Is there any problem > adjusting R2 such that SWR on the KAT2 corresponds more closely to what the > AA-230 reads? > > Chip > AE5KA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
