? ? ? ? ? ? It’s normal for CTS, DCD and DSR to go green so no worries there. Firstly we should try a test though and that’s a simple loop back test. You need to locate pins 2 and 3 on your cable. Please don’t think I’m trying to belittle you but I just want to get back to basics.

Bridging RX and TX will create a loop and when you type into the console both TX and RX should light up together. This also means if you type A on the screen you get AA. Or B and you get BB as the computer is simply sending back what you typed. This will eliminate cable problems, null cable for straight etc. it’s important to note that FT847 to RS232 is Null and TX and RX are crossed over in the cable….. I realise you know this but I just want to be super sure.

? The above step is only needed if your 100% certain the cable it null and you will need to enable echo of the port.

?Now we can send a simple command from the PC to the radio to turn on CAT. Without this command you won’t get the radio to do anything. In Terra Term after setting the correct baud rate and stop bits and then clicking “change”.

?Now we head across to “display” and change the character set to hex.

? Next we head over to “send” and in the top box you’re going to type this exactly as it’s written here.

0x00 0x00 0x00 0x00 0x00 - in the top send box

0x00 0x00 0x00 0x00 0x80 - in the bottom send box

?Once this has been done press “send numbers”.

This top command enables CAT and CAT should now be illuminated in the radio window above shift knob.

? If it isn’t illuminated then we can start to assume there is either a hardware problem or”mux or MAX232”

? If it does illuminate then change the writing in the upper and lower box to:

0x00 0x00 0x00 0x00 0x4E - this enables satellite

0x00 0x00 0x00 0x00 0x8E - this disables satellite.

See the images below on exactly what it should look like.

Depending on your outcome? You can now either connect up your favourite program on the assumption it’s a program setting. You should also be able to rule out a bad cable or a straight cable masquerading as a null modem cable.

? Please let me know if this helps ?

My programs BTW are;

PSTRotstor - paid but brilliant software for satellite control. There’s nothing close in my opinion.

FLrig, FLDigi

JT65HF

Ham Radio Deluxe (version 5 before it became paid for).

WSJT-X etc

FTcat and FTbasic (contact me for links, was paid but author retired and made all his software free).

Gpredict?

SatPC32

Look4Sat (Android)

Log4OM

Probably others but nothing I use regularly.

Hope this helps..

Aaahhh…. If anyone knows how to obtain a copy of RATS847 as I do t think is available and software Informer just wants you to sign up for a link to when it becomes available.

?Good luck as let’s go back to basics and work from there.

Kind regards,

De Spence G5STO

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