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Messages - Channel Z

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1
The RF Workbench / Re: Corsette Transmitter
« on: February 08, 2019, 1251 UTC »
Intruder, check your message inbox, just sent you a PM.

Z

2
The RF Workbench / Re: New here, and my journey building a SW xmtr
« on: September 23, 2018, 1348 UTC »
Welcome to the dark side.  All you need is a coax-fed, half-wave horizontal dipole cut for your operating frequency.  Mount it as high as you can.  No tuner required, and about as simple as you can get for good performance.  That's all I've ever used, and my results speak for themselves: 380 mW beacon received in France, 1.1 watt Corsette received 1,000 miles away, 16 watt LuLu received in Japan, 25 watt Commando regularly heard in New Zealand. 

Chris Smolinkski and I did some low power experiments, and you can hear for yourself the difference between 1.1, 14, and 25 watts: https://www.radiohobbyist.org/blog/?p=271

Also, if you want to try other proven transmitter designs, or need help with a build, please join the homebrewpirateradio Yahoo Group: https://groups.yahoo.com/group/homebrewpirateradio

3
The RF Workbench / Re: Any DDS 200 watt AM Transmitters or kits
« on: November 28, 2017, 1620 UTC »
Digitalmod:

If you're just looking to get on the air with a Class E AM shortwave rig, the easiest and cheapest route would be to buy one of Stretchy's Lulu transmitters.  He's running a Xmas sale on them at the moment for HFU members:

https://www.hfunderground.com/board/index.php/topic,38921.0.html

However, if you want to have some fun and learn something in the process, you should try building your own "Lulu".  Later you can move onto higher powered rigs if that's your fancy.

For starters, join the homebrewpirateradio Yahoo Group, where you will find schematics and photos of all sorts of homebrewed transmitters, plus a willing support group to answer your questions and help you build your rig.

Here are a couple of links with more info on the Lulu for you:

http://www.qsl.net/lu8eha/lab_ref2.html

https://hfunderground.com/blog/?p=72

There is a solution out there if you want to take the plunge with a higher powered Class E transmitter, pulse-width modulation and DDS/VFO in kit form, however you really should have an oscilloscope to simplify the Class E tuning procedure and some prior transmitter building experience:

http://www.shortwaveradio.co.uk/projects.htm

Welcome to the dark side!


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