I remember reading somewhere that the envelope of the LORAN pulses was shaped to reduce the transmitted BW.
Does anybody have a reference for that, and relatedly, what does the BW of the antenna have to be? Typically, loops are about 90 KHz to 110 KHz, but can that be narrowed down? Best, -John ============== > In message <[email protected]>, > paul > swed writes: > >>OK now that I can actually receive the 90070 chain in the US. What might >> be >>a better antenna then my whip and preamp? >>A big loop and preamp? A tall vertical over a ground plane. Tried 67 ft >> that >>yielded little. How might reception be improved in the US? > > I built a trivial loop based on a design-idea I found at vlf.it > > http://phk.freebsd.dk/loran-c/Antenna/ > > It's basically a loop with an AD797 amplifier and some power-filtering, > didn't even write a schematic for it... > > > -- > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > [email protected] | TCP/IP since RFC 956 > FreeBSD committer | BSD since 4.3-tahoe > Never attribute to malice what can adequately be explained by > incompetence. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
