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Stew Perry Topband Challenge   2018   Spring   Claimed Score

Click on a call below for a list of all the contests for which that call sign is listed as an operator. Click on the [email] link to send an e-mail to the contester who posted the claimed score.

Call: K1LT
Operator(s): K1LT
Station: K1LT

Class: Single Op HP
QTH: EM89ps Ohio
Operating Time (hrs): 9:15
Location: USA
Radios: SO2R  

Summary:   Compare Scores
Total:QSOs315Total Score1,026


Club: Mad River Radio Club

Comments:     [email]     2018-03-11 16:43:23
I spent the Saturday before the Sprint Stew Perry test trying to get my south Beverage to wake up. All of my Beverages are 2-wire center-fed Beverages. For the last few months the south direction has very low output while the north direction works fine. I've replaced all of the parts involved (feedline, transformers, connections between them, etc.), but there is no improvement. I assume the wires are intact because they look intact and have continuity. The only thing that remains is the ground itself. My 2-wire Beverages generally use the scheme in which one wire is grounded while the other wire floats. The common mode current representing the received signal reflects in-phase from the grounded wire and reflects out-of-phase from the open wire producing a differential mode current in the 2 wires. Since I have replaced everything else, I must conclude the ground is broken. The ground consists of copper flashing wrapped around the bottom of the 4x4 post that supports the north end of the Beverage. I can verify that the grounded wire conducts properly to the copper flashing. Apparently, the copper flashing must no longer make adequate contact with the ground. That would be surprising since my ground is generally kind to buried metal things. I didn't have time to lay a counterpoise to test this theory. Comments are welcome. The annoying Beverage exercise was to have signals originating from the south appear on the P3 while I used my ears for signals from the east and west. When I see a trace on the P3 that I don't hear, then I know to switch antennas. This method has proven to be somewhat more reliable than remembering to switch antennas after every CQ. Since the south Beverage didn't work, I used the 150 degree Beverage. I worked OA4TT and lots of Florida stations with this method. This contest was very noisy but differently noisy than a summertime contest. The static was not as strong as summer static, but it was very thorough at destroying a CW signal. Thus normally copiable signals were very hard to decode while stronger signals were just fine. About half of my DX contacts and a few west coast stations were major letter mining activities. I probably busted several calls and grids. On the other hand several DX stations that I usually have trouble hearing came through easily. KL7SB is a notable example. I operated until about 0700Z and stopped after 20 minutes of CQing without a QSO. I took a 3 hour nap and it took a few more minutes to get the next QSO logged, leaving a 4 hour gap in the log. The morning bump brought a few more QSOs from all over. First, my apologies to XE3ARV. I just could not mentally integrate the dits and dahs to form a coherent message. He was sending very slowly with a lot of spacing between the dits and dahs which broke my brain (doesn't take much). I didn't expect to hear JA, VK or ZL, but JA7QVI called just at my sunrise with a very strong signal and a 579 but no grid. I guess he wasn't in this contest unlike all of the other contests in which we have QSOed. By the old TBDC rules, I would still get 1 point for the QSO, but I think that rule has been dropped. I logged him anyway. DX worked: DL (3), F (3), G (4), JA, KL7, LY, KV4 (2), OA, OK, PA, S5, SM (2), UA, UR, XE (2), and YO not counting my known busted XE3ARV QSO. Most of these are probably broken, too. Where was KH6? Equipment: K3/100, P3, 8410 at 900 watts, K3/10, homebrew SO2R stuff, 2 phased array / SDR receiving systems, 12 Beverages (only 1 used), 'tee' antenna 65 feet tall over 75 radials.