Jim - Give www.w4mq.com a try!
73, Dick - KA5KKT ---------------------------------------------------------------------------- ---------------- On 19:59, Jim Brown wrote: > Crew, > > I've put up a pair of new antennas for 160M that are predicted to have > about 3dB of gain over my existing vertical. Without going into a lot of > detail, each antenna is a wire sloping off of my 120 ft tower, one going > east, one going west. The tower acts as a reflector. The tower and each > wire have 4 elevated radials. The antenna is working -- I've made four QSOs > with VK, one with FK8, and one with FO in about two hours -- but I need to > figure out if it's working better than my existing omni vertical. > > By doing a lot of listening, I can clearly confirm the predicted 6dB or so > of front to back, but QSB makes it hard to get a handle on gain, and I'm > only expecting 2-3dB. That's where the dB meter in the K3 comes in handy. > > My method is to key down on one antenna for a while, let you get a reading, > switch to the other and do the same, then back and forth between them, > again for long enough for you to get a good reading. There IS a lot of QSB > on the band, so you'll need to do a lot of mental averaging. Please let me > know, OFFF THE LIST, if this is something that you would like to help me > with. I need reports from stations that are between about 30 degrees > azimuth and 120 degrees azimuth of my QTH south of San Francisco. In other > words, my antenna is aimed at about 75 degrees (ENE), and I need reports > that are within 50 degrees of being on axis. I could also use measurements > from KH6 of the antenna that goes in that direction. > > BTW -- to access the dB meter in the K3, you need to hit the Display button > once, then rotate the second VFO knob clockwise until you see a reading in > mV. Let the knob in that position for about 15 seconds, then rotate it one > more position clockwise. Now, the dB reading will be relative to whatever > the average IF output was when the knob was in the mV position. Note also > that the reading goes plus and minus. > > 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
