SGC SG-2020 TEST DOCUMENT, Installation And Operation Manual

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© 1998 SGC Inc
SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA
P.O.Box 3526, 98009 Fax: 425-746-6384 or 746-7173 Tel: 425- 746-6310 or 1-800-259 7331
E-mail: sgc@sgcworld.com Web site: http://www.sgcworld.com
12.0 FRONT PANEL CONNECTORS
12.1 PAD
Keyer paddles can be plugged into the 3.5 mm stereo phone jack
to utilize the built in electronic keyer. A 3.5 mm stereo plug is
required to make proper connections to the paddles. The shell of
the plug is ground, the ring is dash and the tip is dot. The keyer is
similar to the Curtis type B format iambic keyer.
12.2 KEY
A 3.5 mm mono phone jack is provided on the front panel for a
straight key. The key sees +5 Volts at a few milli amperes. The
SG-2020 is set up for full break-in operation and transmits when
the key is closed. A sidetone of 650 Hz is also activated. If the
SG-2020 is tuned to a frequency outside the amateur bands, it will
not transmit when the key is closed. The shell is ground and the tip
is key.
12.3 MICROPHONE
The large circular 8 pin connector on the front panel is provided for
the microphone. Wired to this connector is Tx and Rx audio and
push to talk. The wiring of this connector is compatible with most
Kenwood microphones such as the MC-43.
Note: This KEY connector is a mono jack, use only
a 2 contact mono plug.
Note: This PAD connector is a stereo jack, use only
a 3 contact stereo plug.