NT7S profile
NT7S
NT7S
Open source amateur radio and electronics
Subscribe
Contribute
Send Message

Share

Tell people about this page...

Subscription Tiers

$2
per month
Ss logo sign mono back
Two Bucks!

Very cool.

0 subscribers
Unlock
$5
per month
Ss logo sign mono back
Five Bucks!

So great of you!

1 subscriber
Unlock
$10
per month
Ss logo sign mono back
Ten Bucks!

Amazing!

0 subscribers
Unlock

Features

  • Personal and exclusive updates on what's happening with me and Etherkit.
  • The opportunity to purchase and participate in beta tests before the general public.

Recent posts

B0fe8ec0 8aa3 4d61 a1cd a367f7d24065 120x120 1x1 2374x2374
NT7S

Details about the multiband...

Comments
Like(0)
Dislike(0)
This post belongs to a locked $2 tier.
Unlock Tier
B0fe8ec0 8aa3 4d61 a1cd a367f7d24065 120x120 1x1 2374x2374
NT7S
Public post

This week I've been working on an antenna that can be used with OpenBeacon2 on multiple bands without the need for an antenna tuner. After a few failed attempts, I settled on an antenna which seems to work well and fit the bill. It is a trap vertical for 40 m, 30 m, 20 m, and 17 m, with elevated quarter wave counterpoises for each band. There's a bifilar 1:1 transformer in the center support of the antenna.

I have been running OpenBeacon 2 on it transmitting WSPR on each of those four bands in succession on random frequencies within the WSPR sub-band. The antenna seems to be working fairly well, as I've been getting spots on all bands (although 17 meters is sparse, I assume because of the lack of sunspots and lack of listeners).

There's a decent chance I'll make PCBs for the band traps and offer them for sale, along with the plans. If you might be interested in testing such an antenna, shoot me an email/message.

B0fe8ec0 8aa3 4d61 a1cd a367f7d24065 120x120 1x1 2374x2374
NT7S
Public post

I've published my QRP antenna components for 3D printing on Thingiverse and I also have the FreeCAD files on a GitHub repo. I'll probably do a little more refinement on them, but they are perfectly usable as they are now.

B0fe8ec0 8aa3 4d61 a1cd a367f7d24065 120x120 1x1 2374x2374
NT7S

I now have advanced transmi...

Comments (2)
Like(1)
Dislike(0)
This post belongs to a locked $2 tier.
Unlock Tier
B0fe8ec0 8aa3 4d61 a1cd a367f7d24065 120x120 1x1 2374x2374
NT7S
Public post

The USB PIDs for Empyrean Alpha and Beta were accepted into the pid.codes database, so now that's official! Would love to have my own VID some day, but they are very expensive. Would be nice if the price of those came down about an order of magnitude at least.

B0fe8ec0 8aa3 4d61 a1cd a367f7d24065 120x120 1x1 2374x2374
NT7S
Public post

Latest (and hopefully last) PCB spin has arrived from China, along with a nice stencil in a frame. Waiting for some more parts to arrive before I can assemble this latest version. In the mean time I've got a tricky firmware bug to fault find.

B0fe8ec0 8aa3 4d61 a1cd a367f7d24065 120x120 1x1 2374x2374
NT7S

We welcomed two new members...

Comments (2)
Like(1)
Dislike(0)
This post belongs to a locked $2 tier.
Unlock Tier
B0fe8ec0 8aa3 4d61 a1cd a367f7d24065 120x120 1x1 2374x2374
NT7S

My big "secret" summer proj...

Comments (2)
Like(1)
Dislike(0)
This post belongs to a locked $2 tier.
Unlock Tier
B0fe8ec0 8aa3 4d61 a1cd a367f7d24065 120x120 1x1 2374x2374
NT7S
Public post

You may recall that not very long ago, I had a Patreon account. It started to gain some traction, but I ended up terminating my account with them because I didn't agree with some of their policies and business decisions. Now that I've found a similar platform, I've decided that I'd try to build up that network again. This is just going to be a soft launch, since I haven't even put out any content or much open source work in general in the last few months, but once I get back in the saddle and feel like I've actually done work worthy of asking for support, I will do so.


The subscription gives you:
  • Full, unlimited access to Star's profile content - to view it online or to download it to future use.
  • Support your Star by contributing – one-time or recurring.
  • You can cancel this subscription at any time.
This website uses cookies to improve your experience. Continue to use the site as normal if you agree to the use of cookies. If you’d like to find out more about the cookies we use or to opt-out, please read our Privacy Policy. By choosing "I Accept", you consent to our use of cookies.