Specifications

interface: in that case, this line (RTS or DTR) can NOT be used for PTT Switching (see the
documentation of your interface). (2) If your transceiver requires the RTS/CTS line for
Handshaking (Kenwood and TenTec) you can NOT use RTS for PTT Switching (or CW Keying).

Whatever the option you choose for PTT switching, the TRX-Manager's CW interface sends a
TX/RX signal to its unused line (DTR if you key RTS, RTS if you key DTR...) for compatibilty with
Rigblaster or other similar devices. See also CW Interface settings for more information,

If you must key the transceiver's PTT line via DTR or RTS but using a different com port that
the one used for CAT control, please check the CW Option (PTT via CW Port). In that case, you
must set up the CW interface (even if you don't use it) and open the Keyer module in order to
activate the corresponding com port (see CW Interface settings for more information),

Under Windows ME, please see the Troubleshooting/Serial port section for more information
about the DTR and RTS lines.
Example 1: CAT on COM 6, PTT Keying using COM6's RTS
Interface's RTS line is not used and free for PTT Switching
RTS line is used to switch PTT
DRS line is used to detect a TX Interrupt condition (advanced)
Example 2: CAT on COM 6, PTT Keying using RTS Line of COM13 (CW Port).
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