HFU HF Underground
Technical Topics => The RF Workbench => Topic started by: Stretchyman on April 29, 2017, 2310 UTC
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At last!
Please let me know what you think!
Aim to do some more 'Instructional' stuff as time goes on.....
https://youtu.be/ctg4YDltCw0
Comments welcome.
Str.
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Very nicely done, and the modulation out of the rig is really nice. The audio sweep just about sent my cat into orbit.
You design nice boards, and your test bench is a work of art.
John
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Agreed, the modulation looks a lot cleaner than a lot of the low power rigs I've seen. I still would have preferred a straight PWM modulator, perhaps with a crude voltage doubler on the front end to get the required B+, but you do pay for simplicity, design time/cost, etc.
Nice work!
+-RH
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Incredible work 8)
Makes my perfboard homebrew look like crap lol. One of these days I will get around to making my own PCBs for projects.
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Yes, dont worry PWM is next!
and Antennas with a network analyser, whooo!
Well that was only the second take after I forgot to put on my ARTLAB teashirt!
Big thanks to my Mrs whose never used a video cam before, well done!
Great fun and have been meaning to do something for ages, dont know why I left it so long.
More soon!
Str.
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Yeah, Stretchyman's work and shipping details are the real deal... He's committed and trustworthy!
I have purchased his latest one (6925), but am swamped with other commitments at the moment in order to get it up & operating.
I still need to make a portable antenna ...
Hope you make a video tutorial for an antenna Stretchyman!
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Yes! antenna 'Tutorial' on the way!
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'It's better to give than receive' so why RX when you can TX!
Buy one from me, NOW!
Great discounts on ALL my transmitters if purchased via HFUnderground
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Looked all over but can't find any links for this.
Where do I go?
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At last!
Please let me know what you think!
Aim to do some more 'Instructional' stuff as time goes on.....
https://youtu.be/ctg4YDltCw0
Comments welcome.
Str.
Enjoyed that a lot!
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'It's better to give than receive' so why RX when you can TX!
Buy one from me, NOW!
Great discounts on ALL my transmitters if purchased via HFUnderground
----------------------------------------------------------------------------------------------
Looked all over but can't find any links for this.
Where do I go?
Oh!
Sorry it's not more obvious!
Please watch the vid
https://youtu.be/ctg4YDltCw0
stretchyman2k@googlemail.com
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Oh yeah! That dude's work puts my work to shame. 3 1/2 years ago I made a 13.560MHz AM mW TX for the Part #15 portion of that bad. 900uW - 18mW output, EXT modulated with a 1/2W of audio, and all made from used components on hand. The only thing new in it was a donated 13.560MHz crystal from Fearless Fred. I stuffed it all in an old Pace CB chassis. Looks like hell, but works great. Stretchyman's TX is like the 21st Century's version of the Radio Animal Grenade TX, when I contemplate about it.
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Ooh, complements! Nice....
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Just removed a comment (on YouTube) saying;
'I'd be going to prison as it was 100% illegal'.
Are people really that stupid?
Mind you that's the ONLY negative /stupid comment I've had so far.
I still have faith in the Humanz....!
;D
Str.