Arduino Pro Mini – A Great Tiny Micro Controller

If you have been working with Arduino boards, you may already know about this great little board. The Arduino Pro Mini is about 1.7" X 0.7" in size. It has the normal 14 Digital I/O lines and several analog inputs as well. The one thing you need to know is that you must have a... Continue Reading →

USB For DX Doubler First Prototype

I recently completed testing of the first prototype of the USB interface for DX Doubler using N1MM+ software. This was a rough prototype, so it isn't pretty but it does seem to work fine. It currently handles RX and TX Focus, and STEREO for listening to both radios at once. There is an FTDI chip-based... Continue Reading →

Remote Rig Access and CW

I have been using my K2 Station remotely, via Internet, for several months now. It works great but I really want to be able to use my keyer instead of a keyboard for CW. I have seen several people talk about doing this, but have not yet seen anyone actually do it. I know some... Continue Reading →

Remote K2 Power Timeout

Finally completed the power watchdog timer for the K2. This allows me to operate the K2 remotely within compliance of the requirement to have an automated means of shutting down a transmitter if it exceeds 3 minutes on the air. This is an FCC requirement, and you definitely need to be concerned about the possibility... Continue Reading →

First “Remote” QSO Success

I finally got the Transmit audio interface together and connected and started assembling the "dead man" timer. The timer is required on a remote Ham station to stop a runaway transmitter after it is on the air for 3 minutes. Skype seems to work fine for the audio interface in both directions. I got good... Continue Reading →

Remote Rig Timeout Controller

To run a Ham Rig remotely, the FCC requires the ability to shutdown a "runaway" transmitter after no more than 3 minutes of activity. There are several ways to do this. My plan is to use a small Arduino computer board to handle the timeout control function. Here is a basic diagram of the timeout... Continue Reading →

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