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If you can it is always worth measuring the inductance of a toroid core rather than relying on the various charts and on line calculators that tell you how many turns equate to an particular

Hi Guys, We now stock crystals for 14.000 Mhz and shortly will stock some for 28.000. 73s Steve G0XAR

Guys, My apologies for the delay in the production of the 30 meter kits. The reason was that my normal supplier of 30 meter crystals could not supply any more. However, thanks to the efforts of my

Steve G0XAR Once outside a country's territorial limits the regulations on unattended beacon transmissions might be different. :-) The US also has 2-liter soft-drink bottles. They are handy for a

Hi Stan, That is a very interesting proposition you have there. On our kits we get great stability without using any ovening of the crystals. If you are burying the whole plot in the back yard I

A floating unit sounds like it could be fun Arv. I have been experimenting with using a PicAxe for control. I have one running as a battery monitor and it also generates a beacon string message. I

Stan AK0B Some time ago a couple of us were discussing something similar, but using QRSS beacons with GPS for launching in ocean currents to see where they go. Our approach was to use 3 inch

I would like to share ideas on packaging. I am in the process of building a qrss transmitter which I will put into a square glass bottle I obtained from Lobby Hobby. The bottle mouth is 2 inches and

Hi Guys, I am sorry that some kits have been out of stock for a little while and that some orders have gone missing in the post. A rush of orders from Sweden depleted stocks and I had to go away at

Sorry folks Posted this on the wrong group... Senior moment

Hi folks Just getting back into ham radio after a 16 year break. Having fun using my recent build of an MKARS80 into a half wave dipole. Not familiar with most of the ham radio software but need a

Hi Stan, If you can wait for a few weeks I hope to have stock in the shop at a reasonable price. I am having 1000 made in the USA. I ordered them a while back and i hope they will be shipped

ESS has them at : http://www.expandedspectrumsystems.com/prod4.html Usual disclaimer , just a satisfied customer . Charlie , W5COV ---- w9ifz <w9ifz@...> wrote:

can anyone point me to a source? Thanks, Stan ak0b

Hi All, Thank you to all those that responded. It sounds like there is an interest in the idea and some people willing to contribute. I'm working on some more sample server software, and will then

Now I'm on air for a few days, I'm testing the station. Reception reports are welcome, you can e-mail me a screenshoot of the reception and other information about your radio station. I thank you very

Hi All, I am currently transmitting My call sign (VK5DJW) in QRSS3 from an inverted V dipole I set up the Hans Summers QRSS kit today using a calibrated frequency counter at work. it was a Racal Dana

Clayton, I downloaded the receiver project and it looks good, congratulations on your win. I have a few websites I look after although I have retired from full time work but there should be space

Sounds like a good idea in principle perhaps share some more info with us ?

It looks like I've set the world on fire - or at least a few Knights! Thanks for the feedback. To answer a few questions: The details of my receiver can be found in my design entry