The WinKeyer IC used for CW keying has an independent PTT capability that can control the PTT output from RigPi Keyer. This special Keyer PTT operates in parallel with the normal RigPi PTT. To use RigPi Keyer PTT, the Keyer must be assigned to the account for which you want to use it.
RigPi PTT, configured in Radio settings, controls the PTT jacks on both boards, RigPi Keyer and RigPi Audio. Keyer PTT also controls the PTT line on RigPi Keyer, no matter whether RigPi PTT is on or not. Keyer PTT can be used to control an external device, such as a remote power switch or an antenna bypass switch.
Keyer PTT is controlled by custom macros. Two macros are pre-programmed in the RigPi Macro bank to accomplish this: SWITCH ON ($<18><01>) and SWITCH OFF ($<18><00>). In SETTINGS>Keyer, remove the check from Enable Keyer PTT to switch to independent control using Macros.
RigPi PTT |
Macro Switch |
Audio PTT Out |
Keyer PTT Out |
|---|---|---|---|
On |
On |
On |
On |
On |
Off |
On |
On (Off with jumper 201 removed) |
Off |
On |
Off |
On |
Off |
Off |
Off |
Off |
RigPi PTT (Radio Settings) has 3 options: None, ON when transmitting, and ON when radio connected. This third option overrides Key PTT since it is on whenever the radio is connected. Keyer PTT and Audio PTT are both on continuously. If RigPi PTT is set to None, Audio PTT never turns On, and Keyer PTT is controlled by the Macros. By removing jumper 201 on the RigPi Keyer board, RigPi PTT has no control over the Keyer PTT.
The Keyer PTT can be used to control an external power switch. Candidate power switches include:
MFJ-1172
Digital Loggers IoT Control Relay
