Search found 86 matches

by Brian - K3ES
Sun Feb 25, 2024 7:43 pm
Forum: Questions & Advice
Topic: thoughts on band scopes
Replies: 4
Views: 190

Re: thoughts on band scopes

What are your thoughts on full break-in or qsk operation? How important is that feature to you? I am newer to CW operating than many (about 3 years into my CW journey now), and it would be good to have others comment. Here are my thoughts. Semi-break-in can be an advantage when sending in crowded c...
by Brian - K3ES
Sun Feb 25, 2024 3:14 am
Forum: Questions & Advice
Topic: thoughts on band scopes
Replies: 4
Views: 190

Re: thoughts on band scopes

How useful is a band scope for a CW only operator? Any and all comments appreciated. Thank you. Personal opinion: It depends how you are operating. For hunting DXpeditions working split, a band scope can be a great help in finding where to position yourself among the callers. For contesting, a band...
by Brian - K3ES
Wed Feb 14, 2024 12:13 pm
Forum: Questions & Advice
Topic: Recorded Morse classes?
Replies: 1
Views: 217

Re: Recorded Morse classes?

I’m struggling to make my LICW classes due my shifts and the time difference (UK based ) Are there any recorded CW classes (from anyone) that I can work my way through on YouTube? Something that builds on the class before and has an instructor talking you through? I have a basic understanding of th...
by Brian - K3ES
Thu Feb 08, 2024 3:03 pm
Forum: Questions & Advice
Topic: Wet weather antennas
Replies: 3
Views: 290

Re: Wet weather antennas

Hi Andrew, I use wire antennas for my QRP work. I did one outing with my antenna exposed to steady rain (I sat in the truck with feedline running in through the door seal after a generous drip loop). I noticed two issues. First, it was the only time I recall having RF in "shack" issues whi...
by Brian - K3ES
Sat Jan 13, 2024 7:48 pm
Forum: Questions & Advice
Topic: KM4CFT Antenna kit 30/17 meters
Replies: 4
Views: 2320

Re: KM4CFT Antenna kit 30/17 meters

Hi Folks, please excuse my ignorance on this but several weeks ago Tom did a review/activation on the KM4CFT EFHW/EFRW antenna kit where he was able to activate most of the bands from 40-10 using this antenna kit with a 30M and 40M link. He was able to to use the 30M wire to activate 17M. I current...
by Brian - K3ES
Thu Sep 28, 2023 4:11 am
Forum: Questions & Advice
Topic: 9:1 unun 20m
Replies: 3
Views: 2491

Re: 9:1 unun 20m

I want to use my 9:1 unun with my 20m QCX mini. What length wire recommendations? 9:1 ununs are typically used with random wire antennas, which are intentionally non-resonant. So, you would need a tuner to match the antenna to your QCX. An advantage of the random wire is its ability to be matched w...
by Brian - K3ES
Sat Sep 23, 2023 9:03 pm
Forum: General Discussion
Topic: Battery for QRO operations
Replies: 5
Views: 3068

Re: Battery for QRO operations

Hi Matteo, The LiFePO4 batteries that I use have a built-in battery management system (BMS) to protect the battery. In addition to a low voltage cut-off (battery charge expended), they have a high current cut-off. If you draw more than the rated current, the BMS will shut down the battery. After pro...
by Brian - K3ES
Tue Aug 22, 2023 2:35 pm
Forum: General Discussion
Topic: CW Morse SP4 paddle
Replies: 8
Views: 7433

Re: CW Morse SP4 paddle

K4RLC wrote: Tue Aug 22, 2023 2:00 pm Hey Douglas - Vy nice key collection. What is the key that is 2nd from right, the one with orangish quadrants ? Interested in that one. TNX K4RLC Bob
The second key from the right is a BaMaTech TP-III. https://www.bamatech.net/morsetasten/ba ... y-rot.html
by Brian - K3ES
Wed Jul 05, 2023 3:34 pm
Forum: General Discussion
Topic: Best Practices for an EFRW Setup
Replies: 18
Views: 7701

Re: Best Practices for an EFRW Setup

Mike, you're looking at it just from the point of view of "nasty effects during transmission", that isn't the only way, let me expand it; first of all there's nothing like "power levels" when it comes to common mode currents, the point is that a feedline (coax) should work as a ...
by Brian - K3ES
Tue Jun 27, 2023 4:09 pm
Forum: Questions & Advice
Topic: JNC cs-818 tuner
Replies: 16
Views: 4963

Re: JNC cs-818 tuner

Brian, probably I oversimplified, what I mean is that one may like being able to jump on a non harmonically related band, so just by changing the EFHW length to a "good" one for a random and changing the tap to 9:1 we would then be able to jump on (say) the 30 meters band or whatever else...