SGC Smartuner SG-231 Technical Information download pdf (Page 30)

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: [email protected] 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.

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SGC Smartuner SG-231 Technical Information Page 30