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RB wrote:
Brings back scenes from old WWII movies.... Small loops are still used and seem to be very effective for DF. I think that the ARRL antenna book provides information in this direction. One system I saw used a short ferrite dipole array. In most cases, DF sets displayed their goniometer outputs on a CRT or as signal strength on a meter. In this case, the dots and dashes melded into a continous output because of the persistence of the CRT or the AGC delay of the receiver. The first DF equipment I used on the ships was WWII vintage and very effective on any type of signal. Irv VE6BP -- -------------------------------------- Diagnosed Type II Diabetes March 5 2001 Beating it with diet and exercise! 297/215/210 (to be revised lower) 58"/43"(!)/44" (already lower too!) -------------------------------------- Visit my HomePage at http://members.shaw.ca/finkirv/index.html Visit my Baby Sofia website at http://members.shaw.ca/finkirv4/index.htm Visit my OLDTIMERS website at http://members.shaw.ca/finkirv5/index.htm -------------------- Irv Finkleman, Grampa/Ex-Navy/Old Fart/Ham Radio VE6BP Calgary, Alberta, Canada |
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