If only I could get a bucket truck up to my antenna! To service the traps, I have to disassemble the whole antenna on the tower, then put it back together again. A few years ago, bugs packed one of t
Last winter, I tracked down some bad RFI to a neighbor's LED lighting system. Replacing the power supply completely eliminated the interference. I just bought a similar one for my own home and test
The "AM radio up close" test may or may not tell you whether the device produces enough RFI to be detectable at HF. A better test is to listen to your HF radio, using your normal antennas, as you sw
We have a tremendous line of thunderstorms moving toward WI from the west, so QRN is terrible tonight. At least signals are weak due to disturbed conditions. After 27 mostly painful contacts, I've g
Well said, Kelly! 73, Scott K9MA -- Scott K9MA k9ma@sdellington.us _______________________________________________ CQ-Contest mailing list CQ-Contest@contesting.com http://lists.contesting.com/mailma
The fact that one can only work a station once in SS is a great equalizer, making it possible to compete with modest antennas from nearly anywhere in NA. I love NAQP, but propagation can put some pa
But not in CQWW! 73, Scott K9MA -- Scott K9MA k9ma@sdellington.us _______________________________________________ CQ-Contest mailing list CQ-Contest@contesting.com http://lists.contesting.com/mailman
I completely fail to understand why so many operators insist on calling CQ at 45 wpm, when no one is coming back. (There were lots of them last weekend, especially from zone 33.) This seem entirely
My point, exactly! 73, Scott K9MA On 11/28/2017 21:33, Adam Mercier wrote: Thank you, Scott. Im not a CW contester (I prefer phone and RTTY contests) mostly because I have a 15 wpm ear, and my decodi
My point was NOT about average speed, just the speeds when the rate is very low and lots of CQ's are going unanswered. When the rate is high, it makes sense to go QRQ. 73, Scott K9MA Speeds are take
It's passive noise canceling. It's heavy. It does feel really good. And Dave, WI6R stands behind his product. I'll second that. I tried all sorts of active noise cancelling headsets, but the Radiosp
One crucial consideration is background noise levels. If your operating position is quiet, with no amplifier fans, etc., noise reduction by the headphones isn't important, so you can choose on the b
Speaking of the Heil Quiet Phone, I have a pair and found they were subject to RFI. I largely solved the problem, in the process reverse engineering the circuit. I'd be happy to share the details.
And, there ought to be lots of used tube amps on market now, as many of us switch over to SS amps. One of mine will be, for sure. 73, Scott K9MA -- Scott K9MA k9ma@sdellington.us ___________________
Or, as Napolean supposedly once said, "Never attribute to malice what can adequately be explained by incompetence." -- Scott K9MA k9ma@sdellington.us _______________________________________________ C
I agree with John that you have to be sure you have the call right. Lack of a correction might mean s/he only heard part of your reply. Now, in something like a CWT, where members have unique numbe
My A3S traps have sometimes been infested with insects, which presumably got in through the drain holes. I'm planning to cover the holes with small patches of screen, attached with silicone adhesive
This is what happens when the bugs get into a trap: sdellington.us/hr/15M_Trap2.jpg 73, Scott K9MA On 7/13/2018 12:13, K9MA wrote: My A3S traps have sometimes been infested with insects, which presum
Despite a ton of ferrite cores on all the cables, my router fails every time I transmit on 160. I'll admit that RF levels are high, as my shunt-fed tower is only about 20 meters away from the router,
I should have specified that the internet source was is not DSL, but coax. The LAN cables are unshielded Cat 6, and there are lot of them. Putting 2 inch cores on each of them is impracticable, so I'