Alexander Ponomarenko-5 wrote: > > all these measurements, for all radios has been via PHONE-OUT. > There is two-tone measurements, but you can see these IMD even with XG1 > set to s9-level. > Here is my K3 with s9-signal from XG1: > - ATT On http://forum.cqham.ru/download.php?id=32030 > - ATT/PRE Off http://forum.cqham.ru/download.php?id=32031 > - PRE On (it's terrible) http://forum.cqham.ru/download.php?id=32032 >
Please take two consecutive spectrum readings with PRE On, AGC Off from the headphone jack - take one with S9 signal from XG1 and take the second with the XG1 generator turned off (i.e., with no signal in the passband). Please post these two spectra. I suspect many of the spikes in your spectrum reading are not related to the received signal. Thanks, Barry N1EU -- View this message in context: http://n2.nabble.com/in-band-IMD-test-tp1491448p1491878.html Sent from the [K3] mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: [email protected] 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
