Does anyone have experience simulating a conical monopole? I'm using EZNEC. As a starting point, I'm simulating Figure 61 in the second edition of Paul Lee's (N6PL -SK) book, "The Radio Amateur's Ver
I surmise from some other reflector postings that older editions (e.g., 12th?) of the ARRL Antenna Book have dimensions for conical monopoles. If someone has an olde edition on hand, can they please
Forgive my ignorance, as I am not an antenna engineer. I apologize for a long post, but I would like to hear the opinions of the professionals on the line. Between jobs last year, I spent nine months
Now that the snow has melted up here in the taiga, it's time to add a separate RX antenna. I'm considering a Waller Flag and have a question concerning how to use it inside the local environment of m
Hello, Gang, Did anyone else work VK9ANU? If so, did you get a QSL? Masa-san said he would QSL upon returning to JA, but my SASE has gone unanswered and I can't find an email address for him. Any hel
Tree, I had a similar experience on 15 November. I had never heard UA0 before, but worked RZ0AF at 11:21Z (near my sunrise) and then again at 21:41Z (near my following sunset). Also, I worked JA for
It's 0400Z and the pileup for K5D is showing what this band is really made of. With nothing more than a "double L" vertical, I'm hearing awesome signals from all over EU - several of which I need for
I'm putting up 80 ft of Rohn 25G with various antennas on top and may decide to drive it as a monopole on 80 and/or 160 at some time in the future. Since stubs of wire attached to a radiator can affe
Well, we have been lucky in the North then, for a change. I worked V51AS around 0500Z on 11 Apr 09 and S04R around 0600Z on 15 April 09, right around their respective sunrises. I feel like I'm usuall
Does anyone else see a pattern here? To me, it looks like "Marconi" to "DeSoto" to "lots of real estate" to "suburban high tech topband guerilla." I think this would be a fascinating subject for a we
I received T32RD QSLs via the Bureau. I also received T32RD and 5K0T QSLs via ARRL LotW. The T32RD LotW QSLs showed up in April 2008, long after the operation. The 5K0T QSLs LotW "arrived" in March 2
For those who need VT for WAS but didn't work a VT station in CQ WW 160 last weekend, I will operate from my home station as W1MOO this weekend (48 hrs beginning Feb 6 / 0000Z). I plan to make VT ava
I am planning to try out the ICE 184A combination matching transformer and preamp that I bought several years ago. I have no dedicated RX antenna now. I understand that it might be wise to turn off t
So true, but be sure to measure the self- and mutual-driving-point impedances to calculate network values that will produce equal currents at the phase angles you require. In my experience, not doing
I spoke with Yaesu on this question and received the answer that the rotor must be insulated from any surface that carries RF to prevent "unexpected behavior" and/or damage to the rotor and/or contro
Wow... thanks for the many and unanimous response: insulation is out, bypassing at the control box is in - if only for the sake of "good practice." That will save me a boatload of effort. -- 73 -- Br
Jorge, I have used this "bent vertical dipole" on an 80-ft tower for two seasons. The vertical portion in my case is only about 70-ft, with the bottom wire about 5-ft above the (very poor) ground. Us
I found George's thoughts particularly interesting and reminiscent of the longstanding discussion around 10m in times of poor propagation. In that light, I thought it might be interesting to review c
Gang, I remember seeing an article on this subject recently, I think in QST or QEX, but I can't seem to track it down. The author used various numbers and lengths of wire fencing instead of a "conven
Thanks to NI0C for reminding me that this info was presented by NC0B, Rob Sherwood, at the Dayton antenna forum. It's available at www.nc0b.com. 73 -- Brian -- K1LI __________________________________