Check the DATA MD. Should be DATA A. 73 Bob, K4TAX

One important fact omitted.......what is the HV showing on the display. Should be about 75 volts. Your description seems to indicate a power supply problem. Depending on your troubleshooting skills, s

I didn't read anything about RTTY tones. Thought he was referring to low tones being easier to hear. This could be CW or perhaps another. In my earlier comment, I was thinking about FT-8 tones. Anyway

If one is using SPLIT or FAKE IT mode, then the transmitted tone is always above the low frequency or below the high frequency. This occurs by actually shifting the TX VFO as required. Thus all tones

I've always found that radios having the speaker on the top are prone to collect dust and other things that reside on the cone. Anything loose on the cone is likely to rattle and become part of the so

See page 72 of the manual for EE INIT instructions under Parameter Initialization. Hopefully, you do have a backup of the original parameters. Otherwise, you will have to start from scratch. For those

I ordered my K3S with the "TCXO 1 ppm f/w correction to 0.5 ppm factory-installed" option. That was $369.95. Money well spent. My K3S had not been checked in some 60 days. I checked it today on 2.5, 5

This looks like a good solution. Now I need to find one with the correct gender and style connectors. I would like it to plug directly into the radio and have a printer-type connector just like the ra

If one uses WSJT-X there is a Frequency Calibrate routine. It does an EXCELLENT job of determining just how much the radio is off frequency. It uses several of the WWV frequencies to check each band.

Are there recommended methods to protect the KIOB board from failure, the result of or during a nearby strike? Seems the KIOB board is one of the more problematic parts of the K3S. I subscribe strongl

Page 33 in the manual explains setting the K3S data mode for RTTY. You should select AFSK A as this is the correct mode for RTTY. I agree with Jim, K9YC in that the Dual passband filter was a good ide

Sounds as though the SteppIR has issues causing common mode current on the outside of the coax. Your installation of a 31 ferrite at the PL-259 thus reducing the issue is a strong clue. As to the use

Bonding all station equipment to a common point is a significant key to avoiding RFI issues. I find often that many hams go way overboard with "grounding" and still miss the crux of the problem. Choke

I use a brand of heat shrink tubing that has adhesive inside. It is activated by heat. I use this on ALL connections where and when insulation is needed. Even with the VACO or other brand terminals th

To me using the KIO3B, there is only one cable between the radio and the computer. That handles all audio to/from along with CAT control. I use WSJT-X as a stand-alone application and do not use a log

Yep, and darn proud of it. Licensed as a Novice in 1959.......as I recall......which becomes more challenging every day. 73 Bob, K4TAX Man Bob you are OLD. HI Ed.. AB4IQ

I put shrink tube on the section of the terminal where the wire enters. This of course is done with the terminal removed from the PP housing. It thus puts strain relief on the terminal and the wire, w

This old horse died many years ago. Time to stop whipping the horse. If you like solder on connectors........great! If you like crimp on connectors.........great! Now go put some connectors on some co

There is absolutely no need for a higher current-rated power supply. The current protection is inside the radio. Let's make this clear, it is the radio that is shutting down, or is it the power supply

I always crimp with a proper crimping tool for the connector or lug and then sweat solder then add some shrink tubing as strain relief. I know this is not NASA approved or FAA approved but I don't int