Ronnie W5SUM, Wow that solved the problem, I had the filters to tight, I opened them up and now I am decoding tons of stations even the ones with negative signal reports. Thanks for your help! Tom

Yes , just reduce power. Send your message encoded into 11 digits (as I remember) sent multiple times and accomplish it all in 15 seconds. Jim, W4ATK😇

Joe, FT8 and FT4 use GFSK. MSK (minimum-shift keying) modulation has a modulation depth of 0.5 whereas most of the modes used in WSJT-X are all modulation depth of one or

It's picking nits but non-linear amplifiers are not suitable for GMSK. The filtering to produce GMSK results in some amplitude variation and overlap of tones - both of which are not compatible with

Tom I has having the same issue when someone told me to open my filters wide open, at least 3KC wide.. I did and that took care of the problem. I had been using my 400HZ filter. Switched to my 2.8kc

Hi Tom, First of all you need to provide exact rig – PC connections and settings before anybody can consider what’s wrong in your combination. My blind guess is that audio from your rig

I have noticed that the weakest signals that I decode are about 4dB yet I see where other stations are decoding maybe as low as -20dB. I sometimes get signal reports from stations that I contact that

Hi B, My mistake was to name the post CW where I should have used Morse instead. Thanks to your explanation, I understand much better. My thoughts are somewhere in between

Hi Juan, this is a common issue with stations using the SignaLink USB audio and PTT interface. Make sure you do not have the WSJT-X option "Settings->General->Allow Tx frequency changes while

Hi Greg, the whole point of measuring duty cycle is that some modulation techniques use less than 100% duty cycle. For example CW only outputs power when the key is down, during the gaps there is no

Hi Camerart, modes like WSPR, JT65, JT9, FT8, FT4, JT4, MSK144 that are available in the WSJT-X application all uses a frequency shift keying modulation. The output at any particular instant is a

Hi again After several days working fine in 20m now I receive the message: "Hamlib error: Command rejected by the rig while setting frequency” just after the tranmission and when rig needs to come

Paul, "The duty cycle applies only when the Transmitter is transmitting. So it 100% for the 13.9 seconds it is sending FT8. It has nothing to do with the RX time." Your statement implies that all

Dave, after having issues with D4, I changed to https://www.timesynctool.com/ Lloyd K8DIO

The duty cycle applies only when the Transmitter is transmitting. So it 100% for the 13.9 seconds it is sending FT8. It has nothing to do with the RX time. Paul G3YDY This email has been scanned

Also, check to see if a Windows update has turned Windows time sync back on. That sometimes happens. I would also make sure that the NIST servers being used are still open to

Hi A, Your explanation of a stepped wave, answers my question. Am I correct then than what I'm calling a stepped wave, is actually built up over time, by the TX/RX decoder, e,g, a DTMF CODE? I know

Camerart, Very slow CW is known as QRSS, other software used for that. I think it is essentially a visual decode. Not sure what you mean "stepped wave". A WSPR signal is comprised of 4 very close

Hi Dave. You might try increasing your frequency of syncing. I have dimension set to sync every 5 minutes. Anytime is check with time.is, it's within 0 to 2 miliseconds which time.is considers

Search YouTube for KM4ACK. He has excellent videos and scripts guiding you. It works great. 73 de SA5QED DAVID