Peter and Byron, thanks for the suggestions. Good news. I removed connector 92 and that did the trick. So far, I've immersed the whole keypad board in isopropyl alcohol and agitated it for several mi
I cleaned the keypad the second time, this time with Deoxit. It's working again! On Friday, November 1, 2019, 8:33:11 PM EDT, Curt Benjamin <k8aicurt@yahoo.com> wrote: Peter and Byron, thanks for the
I have a 705 desk mic in fair to poor condx if anyone wants it for parts. it's not working but it's all there except the connector and foam windscreen. Just pay shipping from 49331. Curt, K8AI
I think my the Omni 6's logic board finally took a dump. The display and key functions have froze up and resetting won't change anything. Pressing buttons gives a beep but doesn't change the display,
The problem I had was a crappy power connector on the back of the radio. It would take off with the relay chatter almost every time I powered it up. I found the source of the problem when I moved the
I'm working on a 544 that the frequency jumps around. I've cleaned the "offset center" pot and tightened all the screws on the PTO and VFO shields to no avail. Any ideas as to what to check next. Thi
I'm sure it's the frequency jumping around because I'm injecting a known-stable signal at the antenna port and also, when I key it for a period of time into a dummy load, I hear it jumping on the rec
I have a Omni 6 with the standard OCXO but I would like to install a TCXO that I have on hand. What point does the factory instructions have the optional TCXO injecting in to? Curt, K8AI
Thanks you two. I'm using a 20MHz 5V TCXO that I bought off ebay, 2 for $5 shipped. It was outputting only -10dBm so I just added a MMIC amp and padded the output to 0dBm and now it works great. It h
I think I screwed up while cleaning the PTO in a 540. When I started putting it back in, I forgot what color wire goes to what feedthrough on the PTO. Anyone have a picture or know where the orange,
Do you know what the mfg part number of the encoder is? My guess is that it will be a common, 128 or 256 PPR optical encoder with a 1/4" shaft. You should be able to find a new replacement on ebay fo
Guys, since the N4YG DDS is no longer available and too expensive anyway, I have been exploring the idea of making my own. So far, I've taken the Arduino code to control one of those $8 AD9850 DDS mo
But Greg, a DDS made with a Arduino Nano, DDS module and crystal can be made for around $15 plus about $20 for a QUALITY encoder. Besides, that one doesn't have a voltage controlled RIT line. I would
Steve, I've run that idea by a few Arduino guys including AD7C himself. They say yes, you can use one of the analog pins and you can "map" the 0-5VDC to say, an offset of +/- 1000 Hz but they say it'
Steve WIK and Bob, thanks for the links to the DDS kits. If one of them just had a voltage-controlled RIT line and I could limit the output between 5 and 5.5MHz, I would jump on one of them. Right no