Mini-Circuits makes passive attenuators at reasonable prices. They come with BNC, N, and SMA connectors, those being the most popular. They make various power levels also. They do not make attenuator
I used 2--1800 ohm, 1 watt resistors in parallel. The resistance came out to be 920 ohms but close enough to see that the F/B ratio was 25 db or so. 73 Hardy N7RT ____________________________________
While I was in College I had a ½ wave 20 meter vertical on the top of a two story apartment building. Fed with a parallel tuned circuit taped at the 50 ohm point with about 20 or so 18 foot radials.
Milt, Mike, and all: I use 4-hole chassis mount F connectors because like you said, the single nut F connectors loosen up after awhile with temperature changes. Mouser carries them but I got mine fro
Another cautionary note: I don't have the winds that Jeff does but down here in Arizona we have the heat & ultra violet rays that destroy everything. I can get about 4 or 5 years use out of window li
Just my observation. If a ground is broken on either end, it will work in one direction and not the other. I have 3 bidirectional ones here. I have not noticed any change whether there are 2 ground r
Hi Everyone, There are good antennas and everything in between. But the big variable is propagation. I have been on this band for about 18 or 20 years. I can not tell you how many hours I have waited
That's the one thing that irks me about ARRL 160. The reason there are not more stations outside of US participate is that this contest turns out to be an ARRL 160 Sweepstakes at least this is my opi
Ignacy, I have a K7TJR 4 square. In fact I was one of the beta testers way back and I have measured +15 dBm using an HP 435A power meter on the 4 square when transmitting 1500 watts on my Delta Loop
Carl, I thought someone, maybe NASA tried this many years ago and their folley was that the universal gravitational force equation did in the whole project because once 2 particles attach to one anot
Let me chime in also when West African DXPD's get on at 2200Z, work til 2400Z and then disappear not realizing that the West Coast of NA still has 2 to 3 hours of daylight left. Can't they look at a
Yes most definately. Ground wave is substantial over sea water. Why do you think the international distress frequency for ships was at 500 KHz? What you say is about lowering frequency is true. This
One thing I have noticed with the 7O group, they seem to know when they are being QRMed and they go QRX. They did that for 15 minutes on 20 meters and then came back. But I knew their last listening
My card says Ukrainian Antarctic Station, operator Roman, UX1KA. He was on Galindez Island. It is strange to me that they got a VP8 call. 73 N7RT _______________________________________________ UR RS
This is the reason I don't contest on 160 anymore. No DX window and endless CQ machines turn the band into just a trashy mess. N7RT Out west in flyover country we rue the day. Tom is spot on. I too s
Jim, When I first got on 160 I put one up at the urging of W6KUT (SK) back in the late '80s. It worked fair but had a lot of QRN from the cars parked underneath in the garage. The dimensions of the f
Bob, I had the same experience. I was using bare 75 ohm TV hardline as a matching section on my 160 Delta loop and it was partially buried. But after 2 years, the outer jacket was almost gone when I
Has anyone received cards for 80 & 160 from these operations? Please reply to me direct. Tnx Hardy N7RT All good topband ops know fine whiskey is a daylight beverage. _________________ Topband Reflec
Mine came about a month ago. I sent $20 via PayPal. N7RT I sent a $15 donation on November 30, 2012 via Pay Pal for my QSL card. I have had no communication at all, no card received! Is anyone else e
If anyone has a clear shot, take it. At the transmitter that is..... -- Original Message -- From: "Charlie Cunningham" <charlie-cunningham@nc.rr.com> To: "'Tom W8JI'" <w8ji@w8ji.com>; "'Rick'" <nm3g@