Search found 123 matches

by KL7MJ
Fri Aug 29, 2025 3:38 pm
Forum: Field Kits and Reports
Topic: My first QRP POTA Activation was a Failure!
Replies: 3
Views: 85812

Re: My first QRP POTA Activation was a Failure!

Brian,
A bad day of activating is better than a good day sitting at home!
CW will make QRP activations a lot easier than SSB. If you're not ready for CW, FT8 is easier and usually more efficient with your 5w than either mode.

73,
Mike, KL7MJ
by KL7MJ
Fri Aug 29, 2025 3:32 pm
Forum: Questions & Advice
Topic: QRP coming out of 25 sun spot cycle
Replies: 7
Views: 73699

Re: QRP coming out of 25 sun spot cycle

This probably isn't the best time to invest in a 10m-only rig!
Seriously, most POTA activations are done on 20m and 40m. If you have a rig that covers one or both of these bands, you'll be ok.

73,
Mike, KL7MJ
by KL7MJ
Wed Aug 06, 2025 5:29 pm
Forum: Questions & Advice
Topic: 20 M mag loop advice
Replies: 5
Views: 459131

Re: 20 M mag loop advice

That's a cool antenna! I've been playing with a Gawant and an L match recently, but I'm going to try this (and the 80m version too)!
Thanks for sharing!

73,
Mike, KL7MJ
by KL7MJ
Sat Jul 26, 2025 5:41 pm
Forum: Field Kits and Reports
Topic: 20m RockMite success!
Replies: 3
Views: 259637

Re: 20m RockMite success!

Ted,
It was a lot of fun (and frustration). I'm thinking about building a Tuna Tin S, a simple transmitter that uses an Si5351 as the VFO. Hope to hear you on 40!

73,
Mike, KL7MJ
by KL7MJ
Fri Jul 25, 2025 7:39 pm
Forum: Field Kits and Reports
Topic: 20m RockMite success!
Replies: 3
Views: 259637

20m RockMite success!

I built a 20m RockMite several months ago, or at least got to the 90% point and got distracted. Last week I decided to finish it and put it in the traditional Altoids case. Once I got everything situated inside, I was happy to make contacts with POTA stations in IL and MA. Not bad for a little 1/2 w...
by KL7MJ
Fri Jul 25, 2025 7:35 pm
Forum: Questions & Advice
Topic: 20 M mag loop advice
Replies: 5
Views: 459131

Re: 20 M mag loop advice

The short answer is no - a magloop is essentially a large LC circuit, so it needs "C". Having said that, you could use a fixed-value capacitor that will resonate the loop on 14.074, but I'm not sure how sensitive the loop would be from installation to installation. I have a few small verti...
by KL7MJ
Thu Jul 03, 2025 6:57 pm
Forum: Questions & Advice
Topic: No signal out of MFJ-1899t antenna
Replies: 5
Views: 106998

Re: No signal out of MFJ-1899t antenna

You should expect much better performance from a dipole. I've had an MFJ 1899T for a long time. It does work, but it is a very short, compromise antenna. Propagation plays a major role with this antenna, and the bands haven't been very good lately (at least from my QTH).
by KL7MJ
Wed Jul 02, 2025 11:26 pm
Forum: General Discussion
Topic: DIY KH1 - sort of
Replies: 1
Views: 65414

Re: DIY KH1 - sort of

I enjoyed Chris' posts on the carrot. I think I'd like to try it myself, but probably with a (ttr)uSDX, since I already 3D printed the case.
by KL7MJ
Tue May 27, 2025 5:01 pm
Forum: General Discussion
Topic: Greetings from SE Virginia
Replies: 2
Views: 90155

Re: Greetings from SE Virginia

Welcome Marc!

I was down in your neck of the woods a couple of weeks ago, outside of Cape Charles. I had a good time operating my TR-35 and watching the freighters go up and down Chesapeake Bay. The pace was a nice change from northern VA. Hope to hear you on the air!

73,
Mike, KL7MJ
by KL7MJ
Fri May 16, 2025 7:46 pm
Forum: General Discussion
Topic: Simple beam antenna - the G4ZU "Jungle Job"
Replies: 8
Views: 194956

Re: Simple beam antenna - the G4ZU "Jungle Job"

After running the numbers, I assume that the design is metric?

73,
Mike, KL7MJ