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Kg3v Ham Radio Blog

A Diary of Technology Persuits

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Interfacing

AntDecoder Proto Testing with 2X6 Switch

This weekend, I finally got a chance to assemble and test a prototype PC Board for the AntDecoder. The board and the software worked fine. The only issue is that I need to add output buffers to the Arduino lines... Continue Reading →

Important N1MM+ Antenna Config Changes

I just installed the latest version on N1MM+. I have been looking at using the Antenna Data provided by N1MM+ for controlling my antenna switching. In the latest version, the Change Log shows two changes that were made to the... Continue Reading →

Hints – Using the ICOM IC-7600 on RTTY with N1MM+ and MMTTY

I keep seeing people having trouble with this setup. Every time I go to RTTY Mode, something is not working. It seems that some of the parameters in MMTTY and in the Radio keep resetting themselves. There are some other... Continue Reading →

Using N1MM+ Serial (OTRSP) Data for Two-radio Antenna Switching

I have been investigating ways to automatically switch antennas in a 2-Radio (SO2R) station for use in Contesting. Using multiple antennas is nearly a must for HF contesting, including Yagis, Veticals, and any of a variety of wire antennas. When... Continue Reading →

Building an Elecraft KAT-500 Antenna Tuner

I have had a number of automatic Antenna Tuners in recent years.I have had  MFJ tuners, LDG tuners and the built-in tuners in my TS-930s, Elecraft K2, ICOM IC-7600, and Yaesu FTDX-3000. They have all worked pretty well. The first... Continue Reading →

R.I.P DX Doubler

I recently heard that the DX Doubler (DXD) SO2R Controller by TopTen Devices, has been discontinued. Looking at their Web Site, it has completely vanished, along with the Radio-specific cables, User Manuals, etc. This controller was a great addition to... Continue Reading →

DXDUSB – DX Doubler USB Interface Update

DXDUSB Development Status I have had some requests to provide DXDUSB prototypes to  couple people. The latest prototype (Protot3) is still very rough. I have a couple in ongoing testing and they seem to be working well. However, these are... Continue Reading →

A USB Interface for the DX Doubler – The Last DXDUSB Prototypes

I have been working on a USB-only interface for the Top Ten Devices DX Doubler for some time. I recently completed the 3rd generation prototype. This is still a prototype - it uses a very small Arduino board with attached... Continue Reading →

DXDUSB DX Doubler USB Interface – 2nd Prototype

The 2nd prototype of the DXDUSB Interface has been completed. I ran it hard through the recent NAQP CW contest, and it did very well. Now it is just a matter of finalizing the software (of course software is never... Continue Reading →

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