Bitcoin donations to: 1CE9UfWJcHBYkWPns7iqBqZgKhd5xfqEaM thanks!
Buy Bitcoins easily by clicking HERE!


Use coupon radiopreppers for 20% off on the above site.

Recent Posts

Pages: [1] 2 3 ... 10
1
I'm in line also, can't wait. Also waiting for the 40 meter Slop Bucket II to be released with the LCD display!

Joel
N6ALT
2
Ive just built the 40m QCX kit from Hans - and it was a pleasure to do (my 1st proper kit) , the instructions are so well thought out and the support forum is so helpful.  It worked 1st time.  I messaged Hans to ask about current draw on the new QSX, but he wouldnt divulge, except to say he was looking to keep it low where possible, but to bear in mind that its SDR based, so wont be flea power.....   I might order 3 !!!!!
3
I will be getting one... Or two...!

Here is the latest info: http://qrp-labs.com/images/qsx/Norfolk.pdf

Gil.
4
General Discussion / Re: radio preppers blog
« Last post by gil on January 16, 2019, 05:00:03 PM »
Hello,

Because if those verifications are not implemented the forum gets flooded with spam. Apparently you succeeded, welcome aboard ;) And maybe we only want smart and determined people here  ;)

Gil.
5
General Discussion / radio preppers blog
« Last post by 9a3iv on January 16, 2019, 02:25:49 PM »
Why is so complicated to send a post? With so many questions to answer?
6
Antennas / Re: The 49:1 Half-Wave End-Fed Transformer Campain is ON!
« Last post by gil on January 14, 2019, 01:02:38 AM »
Hello, very interesting, please post photos! Potting did not work for me, but you might have better luck...

Gil.
7
Antennas / Re: The 49:1 Half-Wave End-Fed Transformer Campain is ON!
« Last post by M0ORY on January 13, 2019, 06:34:39 PM »
I seem to recall reading somewhere that -43 was a good mix to use for the transformer cores however -52 supposedly performed slightly better but was more expensive. I made my first 49:1 transformer out of a pair of stacked FT140-43 cores and it worked a dream when I tested it on 80m wspr. I decided to get some -52 mix cores. I got a 150-52 and a bag full of 44-52 beads as they were cheap and I thought might be useful for threading over some coax to make a choke. Today I had the idea to make a 49:1 out of a couple of the 44-52 beads stacked. I used 4 beads and the finished transformer measures just 20mm long by 14mm wide. It might not stand up to much power but even if it dissipated a full 5w it's take a while to burn up. I'm going to go out and test it side by side with the 150-52 and 2x140-43 but if it works it'll make a brilliant transformer for prepping when paired with something like the LNR precision Mountain Topper. Actually come to think of it I have some small -43 mix cores too left over from another project so I'll make another out of four of those first and test all four over the next week or so. If they work I'll also try potting them in epoxy in a small container. I think I have an old APS film canister kicking around somewhere which would be ideal. I might be able to 3D print something even smaller though.
8
Radio Reviews, Questions and Comments. / Re: Retevis Mobile Portable Analog Repeater RT97
« Last post by gil on January 08, 2019, 01:43:55 PM »
Thanks, that is pretty interesting for prepping!

Gil.
Pages: [1] 2 3 ... 10