ROT (ROTATOR) Jack
This 5-pin MINI-DIN Jack accepts a cable connected to a YAESU G-800DXA/-1000DXA/-2800DXAAntenna Rotator (listed models are current as of early 2006). You may control the antenna azimuth rotation (and rotation speed) using the Function buttons on the front panel.
BND (BAND) DATA Jack
This 8-pin output jack provides band selection data which may be used for control of optional accessories such as the VL-1000Solid-state Linear Amplifier.
PACKET Jack
This 5-pin input/output jack provides receiver audio and squelch signals, and accepts transmit (AFSK) audio and PTT control, from an external Packet TNC. Pinout is shown on page 15. The receiver audio level at this jack is approximately 100 mVp-p (@600 Ohms).
RTTY Jack
This 4-pin input/output jack provides connections for an RTTY terminal unit. Pinout is shown on page 15. The receiver audio level at this jack is at a constant 100-mV (@600 Ohms) level. FSK keying at this jack is accomplished by a closure of the SHIFT line to ground by the terminal unit.
PTT Jack
This RCA input jack may be used to provide manual transmitter activation using a footswitch or other switching device. Its function is identical to the [MOX] button on the front panel. The same line is available at the PACKET and RTTY jacks for TNC control. Open- circuit voltage is +13.5 VDC, and closed-circuit current is 5 mA.
MIC (PATCH) Jack
This RCA input jack accepts transmitter audio - either AFSK or voice - for transmission. This line is mixed with the microphone audio input line, so the microphone should be disconnected if using this jack and mixing is not desired. The optimum impedance is 500
~600 Ohms, and the nominal input level should be 5 mV.
TRV Jack
This RCA jack provides a low level RF output for use with a transverter. Maximum output is approximately –10 dBm (0.1 mW) at 50 Ohms.
REC Jack
This RCA jack provides low-level receiver audio output and transmit audio, for recording or external am- plification. Peak signal level is 30 mVp-p at 10 kOhms.
EXT ALC Jack
This RCA input jack accepts negative-going external ALC (Automatic Level Control) voltage from a linear amplifier, to prevent over-excitation by the transceiver. Acceptable input voltage range is 0 to –4 VDC.
