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Hi All- This week I finally put together the 30m QRSS beacon kit I bought from G0UPL at FDIM. I added a 5v linear regulator to allow operation from a 9V battery, and an LED to show keying activity,

Wb4mak es I are at ham radio 2010 in friedrichaffen. Will look for u all. W4QO Jim Stafford www.w4qo.com QRP - When you care enough to send the very least!

Thanks Hans, I figured I might experiment with that design until you're able to start shipping kits. 73 Mike N0QBH

Hi Mike Even I can't tell you that, sorry :-( Looks like I shrunk that diagram too much. The good news is that the values are entirely non critical. You could try with 33k in both positions to

Hi Newt Yes... for details of rhe holiday QRSS operations, see http://www.hanssummers.com/qrsstropical.html and http://www.hanssummers.com/qrssmed.html Yes... the TX has 5m of RG-58 coax directly

Can anyone tell me the values of the voltage divider resistors biasing LED varicap in the schematic on this page? http://www.hanssummers.com/qrss/qrsstx.html I think the upper resistor is 33k but

Guys, Just a quick note to say that I will be selling some of the second run of beacon kits at the Friedrischaven hamfest this Friday-Sun. I will be on the SDR-Kits stand Its in the main Hall A1

Hi Hans, You wrote: I remember you showed some pix at the FDIM where you rigged up your TX while on holday. I believe that you had fasioned a balun between your TX and the antenna. Can you describe

You are correct there is some rf on the coax. Note the power box , the small one with metal plate. this has a type M coaxial power socket and an F connector, a 7805 IC drops the voltage to 5v. I can

Hi Paul [Snip] Congratulations on the success, the screenshots, and I'm glad you're having so much fun! I hope you will look for your beacon on the worldwide grabbers too and soon see some DX

One of the tricks you can use with ARGO is multiple screens, try and set one screen centered on beacon band, another up 100hz, and another 100hz below. You can set different gains and sensitivity and

I HAVE CREATED A PHOTO FILE "K5WMS" WITH PHOTOS OF MY BEACON CONSTRUCTION AND INSTALLATION. ALSO INCLUDED ARE CAPTURES FROM KL1X/5 IN BARTLESVILLE,OK AND W4HBK FROM PENSACOLA FL. I AM IN CENTRAL

http://www.qsl.net/we0h/argo/ New server once again. Lets see how long this lasts before it locks up... Mike WE0H EN35hj

Good morning one and all, For those of you who are interested in learning how to program the AT Tiny chip (we use the AT Tiny 13 in the beacon kit) there is an excellent tutorial at

As I figured would happen with a freebie website, they deleted my account tonight. No surprise there. So go to: http://www.we0h.us/argo/ and lets see how long that Grabber survives. This is my pay per

I use that Lyle K0LR style thermistor crystal heater in my freq counter. It has maintained better than 1hz stability for over a year now. Mike WE0H Charlie , W5COV wrote:

NP0 caps become much more important when going cold... not such an issue for ham electronics which will likely never see temps below 0C Matt W8ESE sent from my VIC-20

I have to agree with Hans . NP0 caps are fine in some applications , but not all . I just changed a pair of them out in a filter and replaced them with some high quality "glass" capacitors , which

my experience is not all npo caps are created equal. I suspect many are mismarked as happens with nuts and bolts. Mono caps or cog as they are sometimes called exhibit better stability. My beacon is

Hi Steve et al Speak for your own part of England! Here in London, the sun has disappeared behind some thick clouds. Personally I think NPO caps might be useful sometimes, but generally are