A Diary of Technology Pursuits
I have been looking at implementing a Driver for a 2X6 (2 radios and 6 antennas) antenna switch, driven by N1MM for a couple years. I finally decided to design and build a PC Board for the Driver. I have done several posts about this and did not get that much interest. But, since I... Continue Reading →
I was using my IC-7300 in AFSK Mode in the CQ WW RTTY contest. I decided to enter as "assisted" so I could maximize my score, given that I was only going to operate for a couple of hours. I started to pick some Spots and the frequencies were off by about 1.5 kHz. I... Continue Reading →
I have been considering automating a 2X6 antenna switch using the Broadcast Antenna Selection Data from N1MM+ (which I may refer to as simply N1MM from here on). Most Ham Radio contesters use N1MM+ for contest logging and many are now using it with two radios in a Single-Operator-Two-Radio (SO2R) arrangement. N1MM Broadcast Data for... Continue Reading →
I recently bought an Icom IC-7300 SDR transceiver, and finally got a chance to start looking at it. My hope is to use this as a Mobile rig, although it is a bit large. Not sure how I will mount it in my F-150 yet, but I will give it a try. Since I have... Continue Reading →
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 Antenna Configuration table: Alt-F9: Fix issue with 1.8 and 3.5 in Antenna table when country/locale... Continue Reading →
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 posts on this blog that may help, but here are a few reminders. Mode -... Continue Reading →
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 working a Contest, Band Switching is a key time-waster, and steps need to be taken... Continue Reading →
I have started to create some instructions for installing the DXDUSB. Go to the DXDUSB Page on this Blog (from the Top-level) and you will find a Link to the Instructions File. This is a work in progress, and will be updated frequently. For now, it mainly provides details on how to get the needed... Continue Reading →
I have been looking at antenna switches for using two radios with a number of antennas. The common switches I have found are referred to as "Six packs" or 2X6 antenna switches, which establish connections for 2 radios to any of 6 antennas. N1MM+ provides antenna selection information in a serial data stream via the... Continue Reading →
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 very rough - assembly is hand soldered wires attached to the Arduino board. While I... Continue Reading →
WA7BNM Contest Calendar
