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And how does that help track a non - (frequency) - stationary signal? And
150 MHz two-way has nit to do with downcoming horizontally polarized sky waves, I theenk. By the way, Terman and Pettit got themselves into a heap o' grief with that simplistic approach. I've sent them on to the archives now, but there is a large volume of correspondence in Proc. IRE back about '47 about how that doesn't work. -- Crazy George Remove N O and S P A M imbedded in return address "Richard Harrison" wrote in message ... Crazy George wrote: "I think Steve would be interested in hearing a methodology for DFing a non-stationary signal, as would I." Terman says on page 1050 of his 1955 edition: "The errors in bearing caused by downcoming horizontally polarized sky waves can be eliminated by replacing the loop antenna with an Adcock antenna, which in its simplest form consists of two spaced vertical antennas, connected as shown in Fig. 26-28." The ARRL Antenna book also gives information and says construction is not critical. Best regards, Richard Harrison, KB5WZI |