Gary, Your recordings from the Rockworks cliff are amazing! It's hard for me to believe I was DXing at another Kiwi DX producing cliff to the south of you on one of the same mornings, yet all my reception with the same 12-inch FSL design was low-level and poor S/N ratio. The capacitor-tuned, single frequency FSL just blows away the same antenna used in a broadband fashion.
It was disappointing to discover such a vast discrepancy, because at home and on a camping trip/mini DXpedition my comparisons between the two hookup methods indicated comparable reception except for slightly higher noise on the broadband version. However, I wasn't testing on the DU signals, which normally are much, much weaker than domestic North American signals (weaker even than the foreign TPs in winter). The "Q" and sensitivity boost given by the resonant tank circuit of the FSL's coil coupled with the tuning capacitor evidently makes all the difference. I look forward to further discussions with you about the "hybrid' FSL tuning idea I proposed. This will make use of the broadband mode for signal spotting, and then switching to the single frequency tuning approach for actual DXing and recording of the station with Perseus. There's also the subject of small, 7 to 8 ft. amplified Flag loops to pursue, such as Chuck was trying at the top of the Cape Perpetua Lookout. If you can ever get to the Rockworks cliffs during the fall/winter TP season you may need to tie yourself and the FSL to the guard rails to avoid being blown away! I can only imagine the quality of the 3rd tier, weak Japanese stations you might catch. I think you said that one of the Rockworks cliffs was situated better for TP signals coming from the northwest direction. 73, Guy Atkins Puyallup, WA _______________________________________________ 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]
