The test was copied in Seattle beginning at 0500. The transmitted signal was quite good at first on 6.7925, about 25-30 db above the noise floor, with a the echo almost as strong. As time went on, the echo became less noticeable, especially after 0530. The transmitted signal became gradually weaker after 0540, and was maybe 10 db above the noise by 0600. I could actually watch it get weaker on the SDR display. I switched to 7.4075 at 0600. The transmitted signal was there weakly, but the low signal strength was probably due to ionospheric conditions rather than anything done at the transmitter --- I think the Alaska-Seattle path was becoming less viable, judging from what I saw and heard on 6.7925. I didn't hear the echo at all on 7.4075. I found reception was best using the cw mode.
Bruce in Seattle SDR-IQ receiver, slightly broken K9AY antenna _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
