the bandwidth (using WinSmith). I do see the double VSWR hump and I do see a modest increase in bandwidth. However, the slightest loss really extends the bandwidth and I suspect this is what many fin
even behavior commitment Everyone who buys a Ten-Tec Orion or other alternative should mail Yaesu a copy of their sales invoice and a little note saying "this could have been yours, but since you do
Speaking of the FT-847, is there any evidence of a click problem in that radio. I used one during the Stew Perry Contest and nobody complained, but I know that absence of evidence doesn't always mea
I am planning on using a 45ft vertical during the CQ 160 CW contest next week: http://www.dellroy.com/W4EF's-Ham-Radio-Page/Stew-Perry_El-Mirage/El-Mirage. htm The configuration shown in the picture
few lot When I inquired prior to the CQ 160 contest about the click performance of the FT-847 it got mixed reviews. Since I didn't really have time to find a better rig in the short time available,
for you guys in the east? get to the left coast. Even HEARING EU is an event! Yeah, Ford, reading Rich's message was kind of like listening to Hugh Hefner complain that he lost one of his many 20 so
What A friend of mine at work tells a great (but frightening) story of a guy who he went to meet who was getting out of ham radio and liquidating everything. This guy had a crank-up in his backyard
Not very scientific, but when I was operating portable during the CQ 160 CW contest looking across about 15 miles of saltwater to the west, I was finally able to hear the "ZL/DIGI" signal on 1818.5 t
At the club station where I sometimes operate, we have a 160 meter inverted vee on a 45' telephone pole. The ends are pretty close to the ground, but the whole thing is mounted literally at the edge
Javier, For 160 meters, I would go with 30 turns of RG-8X on a 6" diameter form. This will require about 50' of coax. That should provide roughly 800 to 1000 ohms of choking impedance. 73 de Mike, W4
Kevin, If you are shunt feeding your tower, then the feedpoint impedance in all likelihood won't bear any reseamblance to the base impedance. The shunt arm forms an impedance transformer. By changing
Here are some pictures of the test range: http://www.npt.nuwc.navy.mil/Antennas/flash/34portalj_content.html#facilitiesFrame Looks like a nice spot to do the CQ 160 contest :) 73 de Mike, W4EF.......
Here is Vincent's biography: http://www.phys.uri.edu/people/rob.html As you can see, he is not a professional researcher, so it is unlikely that anything he did got peer reviewed by subject matter ex
I rescued a Gap Voyager from the junk heap at the local club station to use for portable operating. The first thing I did was to gut out all the linear loading stubs and remove the center feed coax f
Dave, Lodestone Pacific distributes for Fair-Rite products. They have a $25/line item minimum, but their prices are much better than Amidon: http://www.lodestonepacific.com/ You'll need to cross the
A friend of mine built a QRO version of this unit for a local DXer. I saw the unit when we toured this fellows shack a few months ago. It peaked my curiousity as I have always wanted to build a unit
I just installed in my FT1000MP Mark V W8JI's recommended click-modification per the instructions on his website: http://www.w8ji.com/ft1000mk_v.htm Comparing the before and after modification RF key
I put some "before and after" keying waveform images for the W8JI FT-1000MP MKV key-click mod. Keying waveforms for both the normal "mid-word" rising edge, and the "hard-edge" leading character are s
The oscilloscope I used was measuring the RF envelope directly (I had a cascade of high-power RF attenuators between the output of the FT1K MKV and the oscilloscope input). The scope was being trigge
I was a bit frustrated last night as I drove over to the local club station to see if I could get in on the action to Europe last night from here in Southern California, but I was unable to hear a si