For lack of a service monitor…
Recently, I had reason to try and check performance on a radio I had acquired, but I had neither a service monitor, nor a second radio like it available (I’m…
Adventures in Linux
I know that linux in the ham shack is not a new topic, and has been beat to death. I’ll keep beating that dead horse and document the issues I’ve…
SteppIR Antenna and Station Integration (Update)
Well, the original configuration (SteppIR controller passing commands between the radio and PW-1) worked… for a while. I suspect there was some collision or synchronization that fell out of timing…
Mini1300 Antenna Analyzer: Initial Impressions
I’ll spare the reader yet another glowing review for the Mini1300 analyzer. No I won’t – I’m still going to spew my thoughts on this thing. I picked one up…
Soundcard Interface: Design For EMI
ok – this should be the final post…. I did one more batch of updates… this time I designed for EMI. Not only did I ensure I had full isolation…
USB Soundcard Interface… update 4
Over the past couple weeks, I have been tinkering more with the soundcard interface. I started using FreePCB (http://www.freepcb.com/) – which is a VERY nice PCB drawing program with gerber…
CI-V EXTERNAL VFO CONTROL, PART 4
Today, I tackled interrupts. I’m not so sure I tackled interrupts, so much as i worked on determining the dynamic tuning step timing. I needed a routine to wait for…
CI-V External VFO Control, Part 1
Many years ago, Sam, K9SD, added some interesting functionality to his Icom 781 radios – an external encoder wired in parallel to the VFO control. This may seem trivial, but…
Soundcard Interface Update
after much work, I got the VX1700 interface working. It would appear that the connection convention is a bit strange. From the service manual, Data OUT on the Data Jack…
USB Soundcard Interface
So, after much fussing and messing around with a rigblaster, I had had enough – I knew there must be a better way to interface to my FT1000. First, with…