Author Topic: K3 CAT and PTT at remote site  (Read 2148 times)

VO1HP

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K3 CAT and PTT at remote site
« on: 2022-08-07, 22:20:48 »
When visiting my K3 remote site i want to operate 6M FT8 using the site Win 7 PC.   I can use the
Line in/out jacks on the K3 for audio but how to do CAT and PTT?

The COM 2 jack on the  RRC remote is occupied by the rs232 cable from the radio and i dont want to interfer with the cabling for the normal remote operation.  The COM 1 jack on the RR remote box is not in use.  Is there a way to use it to establish local CAT when i am at the remote site?

I cant figure it out reading the manual.

Frank VO1HP

« Last Edit: 2022-08-08, 00:57:39 by VO1HP »
Frank
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K3Mini-K3-RemoteRig

sm2o

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Re: K3 CAT and PTT at remote site
« Reply #1 on: 2022-08-08, 08:13:34 »
Hi

if you set com1 to mode 6 or 7 in the radio RRC you can connect a PC to Radio-RRC com1 for local CAT control.

PTT can be connected in paralell with RRC PTT oout which is Open Collector

73 de mik


VO1HP

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Re: K3 CAT and PTT at remote site
« Reply #2 on: 2022-08-08, 10:58:44 »
MIke
OK Tnx for the reply.  COM 1 is already set to Mode 7.  I will connect a cable from COM1 to the PC next trip to remote.
Serial settings
COM1 mode   
Mode-7, CAT to COM2 (local&remote)
COM1 baudrate   
38400
COM1 data bits   
8
COM1 stop bits   
1
COM1 parity   
0 - Off
COM1 rts/cts   
Yes
COM1 terminator (hex)   
00
    

RE your  second point:
"PTT can be connected in paralell with RRC PTT oout which is Open Collector"
Pls claify what is meant ...Do you mean in IOSettings to set like this:

IO settings
OUT0 mode   =PTT
OUT0 on/off       =ON   
    
VO1HP
Frank
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W1UE

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Re: K3 CAT and PTT at remote site
« Reply #3 on: 2022-08-08, 13:56:21 »
Frank, I"ve had the above working for the past 5 years.  If you can't get it working, drop me an email and we'll walk you through it.

Dennis W1UE

VO1HP

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Re: K3 CAT and PTT at remote site
« Reply #4 on: 2022-09-05, 18:50:00 »
I now have been successful in setting up local CAT control of my K3 at the remote station.  I am using an Elecraft KXUSB cable from COM1 on the RR1258 Remote to the PC.  A virtual COM port 10 is created. I am using that port for local rig control and PTT using WSJT-X while I am at my remote. 

Com 1 set Mode 7 in Serial Settings.  For audio I am using a Behringer UMC202HD interface cabled to the K3 LINE IN/OUT jacks.

The only issue I have is a "slow" PTT.  The delay in making PTT is very noticeable but does not interfer with the decoding process.  My PC is ancient running Win 7.  There is a lot going on I guess with the inception on PTT from WSJT-X and the KXUSB Port and then the radio. 

I am wondering about the 1258 OUT0/1/2 settings currently:   CONNECT/BAUDOT RTTY45/ KEYER respectively.  I have tried changing OUT0 to PTT but it does not "take" when applied. 

Is there a solution for the lazy PTT?
Frank
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