Gang, I have an 80-ft tower topped by an KT34XA (elements insulated from 32-ft boom) and 40-2CD (only reflector electrically connected to 22-ft boom). I have 8 x 50-ft lengths of 4-ft wide welded, ga
Thanks for all the responses. One respondent recalled hearing of success with a similar setup on the Towertalk reflector. By searching the archives for "shunt bands" I found an "existence theorem" at
Mr. Fry, I'm confused by your assertion that, "The [BL&E] data gathered is applicable to other frequencies for antenna systems having the same conductor dimensions in wavelengths." Your paper titled,
Having only my gamma-fed tower for TX and RX, I worked half a dozen S5, SV and G "regulars" before their sunrise on 26 March, with some of the strongest signals I've ever heard. True 599+ signals ove
Bob, W7YAQ, celebrated his 70th birthday as 5W0YA in 2010. He did a great job on the low bands with 100W and verticals. Brian K1LI _______________________________________________ UR RST IS ... ... ..
While trying not to whine (or winge, as the case may be), I second Herb's remarks re: Pacific DX to eastern NA. Reviewing my logs, I see that a number of stations were pounding in during the hours af
Since ferrites are discussed so often on the forum, I thought this article in High Frequency Electronics (edited by K9AY!) might be interesting: http://www.highfrequencyelectronics.com/Archives/Jun11
problems, and less on treating every system the same." That is a great suggestion, Tom. Can you recommend a resource that gives a "cookbook" approach to identifying and resolving problems? Brian K1L
Mike, "...a 300 ohm TV twin lead dipole is not all twin lead, but the twin lead is shorter than a half wavelength and at each end a wire continues to make half wavelength length of the dipole..." Thi
of I concur with Mark's assessment. Murtada was only able to hear stations that were S7 or better, according to the reports he handed out to the few stations he worked. The "plus or minus 200Hz" dem
The Wellbrook Communications web site has good pictures of the DKAZ and similar antennas. Navigate to "Components" then "FLAG, KAZ ANTENNA AMPLIFER<http://www.wellbrook.uk.com/antennashop/index.php?r
Wrapping everything in ferrite did not solve my 160m RFI problems. OZ7C provided a filter circuit that I use successfully: http://www.ddxg.dk/oz7c/adsl/adsl_160m_filter.pdf G3VMW has done additional
I don't know if it comports with Australian regulations and/or traditions, but I sent the following message to the Australian Communications and Media Authority: Mike Bazley of Albany, WA recently be
Joe, I don't understand your objection to removal of the symbol rate language. Under the existing band plan, CW is expected to co-exist with other "digital" modes of all kinds. Now, I don't like to h
Jeff, You can also use EZNEC to simulate the effect of the driving point impedance on the array's behavior. It doesn't take too much additional effort to learn how to incorporate lumped elements, tra