Thanks Jay. I tend to not go by what IMD is reported by softare as there are other factors involved the effect the resulting displayed IMD. The KK7UQ IMD meters is measuring it at the source.
Tnx Greg -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net]on Behalf Of Jay Bromley Sent: Monday, January 26, 2009 3:58 PM To: Julian, G4ILO; elecraft@mailman.qth.net Subject: Re: [Elecraft] TX IMD HI Julian and Greg, I see some difference in measured IMD in various software using the same equipment. I also notice a difference in going narrow on receive. Of coarse the transmitter's IMD isn't changing, but the the recorded result. Still useful for testing as long as you compare apples to apples. 73 de jay/w5jay.. > Gregory Fischer wrote: >> >> Not doubting your TX IMD report in PSK. But I typically see ~-32dB IMD >> when >> checking PSK at 50W. >> > You are probably right to doubt it. Such a difference made me try a test > again, on a different band. I got a different set of results. Probably it > is > better to use a dummy load when testing the TX. The IMD Meter is designed > to > be used off-air (hence when TXing into an antenna) but it would appear > that > other factors can affect the readings. This needs further investigation. > > ----- > Julian, G4ILO. K2 #392 K3 #222. > http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham > Directory http://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 > -- > View this message in context: > http://n2.nabble.com/6-Meters-tp2213777p2219621.html > Sent from the Elecraft mailing list archive at Nabble.com. > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
