); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In message <[EMAIL PROTECTED]>, Bob Paddock writes: >); SAEximRunCond expanded to false
>We found the best "waveguide" experience was in >the range of 300 to 420 MHz, but the distance is very limited, >hundreds of feet at most. The main problem at different frequencies >is the material becomes absorptive at lower frequencies, >or reflective at higher frequencies causing to much mutilpath >distortion. Most mines are in coal or metalrich rock, wouldn't that make your experience more pessimistic than the tunnels at CERN which, as far as I remember, is in pretty 'worthless' rock ? -- 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.
