SGC SG-2020 User Manual

SG-2020 PortaPak

USER MANUAL

SGC catalog number: 05-32

Document number: N80100533•D

“No Compromise Communications”

SGC — The SSB People

SGC develops, manufactures, and sells high performance single
sideband (SSB) communications equipment. Since 1971, the compa­ny has sold to the marine, military, aviation, and industrial markets
world wide. Over these years, SGC has earned an outstanding reputa­tion for product reliability and for service after sale.

The company keeps pace with equipment options, engineering
developments, and design requirements. Its products are the most
competitive in the entire long distance communication market. SGC
equipment is presently being used by the United Nations for
inter-communications in developing countries throughout the world.
Many competitive racing vessels, as well as fishing boats, tugs, and
commercial craft are equipped with SGC equipment. In fact, an SGC
radiotelephone provided the only communications available on a past
Polar expedition by the National Geographic Society.

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SGC also supplies U.S. government agencies, several foreign gov­ernmental agencies, and major petroleum companies through Asia
and latin America.

All SGC equipment is designed and manufactured in the USA. SGC
has qualified people ready to provide technical information, assis­tance in selecting equipment, and
recommendations for any installation.

SGC welcomes your call to discuss your SSB requirements.

SGC 2020 Staff

© 1998 SGC Inc

SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA

P.O.Box 3526, 98009 Fax: [phone] or 746-7173 Tel: [phone] or 1-800-259 7331

E-mail: [e-mail] Web site: http://www.sgcworld.com

A. Contents:

Description

Schematic

Picture

B. Product description

The SG-2020 PortaPack is designed to provide a built-in portable
power supply for SG-2020 radio transceiver. The PortaPack configu­ration allows the popular SG-2020 to be used in remote areas, and for
backpack and mobile applications.

When used in mobile applications, PortaPack units can be loaded
with either 10 "D" size ordinary dry cell batteries , or with 10 "D"
size rechargeable batteries, such as nickel-cadmium (NiCad) cells.

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Following are length of operation estimates when using dry cells and
rechargeable batteries. Note that these times are approximate and will
depend on the charge of the battery as well as other factors.

Mode Dry Cell Rechargeable

12 AH 4 AH

Receive 20 to 30 hrs 4 to 10 hrs

Receive/ 6 to 10 hours 2 to 5 hours
transmit

Note: Rx/Tx ratio is 1/10 at 5 Watts transmit power output.

© 1998 SGC Inc

SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA

P.O.Box 3526, 98009 Fax: [phone] or 746-7173 Tel: [phone] or 1-800-259 7331

E-mail: [e-mail] Web site: http://www.sgcworld.com

Depending on the transmit/receive ratio specific to each field applica­tion, the PortaPack will, in most cases, provide continuous radio com­munication operations. An additional feature of the PortaPack is a
connector, provided with the system, which allows rechargeable bat­teries to be charged while the unit is in operation.

Batteries and a charger are not supplied with this product.

A battery charger for the PortaPack can be purchased from SGC. Any
other charger used for this purpose should meet the following charac­teristics:

- DC out: 15 V

- Current out: Minimum 1.0 Amps

- PortaPack's charging connector has the central pin connected
to "+" and the outside pin to chassis. A charger must match
this configuration.

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© 1998 SGC Inc

B. Test for proper operation with battery system.

This is a quick test to determine that the system is operational.

Requirements: 10 'D' batteries either dry cell or rechargeable NiCad
(NOT included)

1. Loosen the three thumb screws on the battery container.

2. Slide and remove the locking plate from the container.

3. Lift the top battery PCB / Spring assembly up and to the side of
the container. Note that this assembly is attached to the contain­er.

4. Install 10 'D' size batteries. These may be NiCad or dry cell.

NOTE: DO NOT MIX DRY CELL WITH NICAD.

5. Replace the top PCB assembly ( from step 3 ).

6. Replace the locking plate ( from step 2 ).

7. Tighten the three thumb screws.

8. Connect the antenna cable from the battery container to the

SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA

P.O.Box 3526, 98009 Fax: [phone] or 746-7173 Tel: [phone] or 1-800-259 7331

E-mail: [e-mail] Web site: http://www.sgcworld.com

radio antenna connector.

9. Connect the power cable from the battery container to the radio
power connector.

10. Turn on the radio.

11. Press and hold the 'CMD' and 'SPEED' buttons to activate the
Voltmeter Display.

12. The radio LCD should display:
16 to 18 volts if you are using new dry cells

or

12.8 to 14 volts for fully charged NiCads.

End of test

NOTE: Replacing the locking plate may be difficult; the unit has

been designed with a tight fit so that the batteries are not subject
to movement. This provides reliable and durable battery contact.

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© 1998 SGC Inc

Battery Case

Placing batteries into the case

SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA

P.O.Box 3526, 98009 Fax: [phone] or 746-7173 Tel: [phone] or 1-800-259 7331

E-mail: [e-mail] Web site: http://www.sgcworld.com

This is the correct way to
store the microphone

The PortaPak has an adjustable
nylon strap, and can be easily car-
ried over the shoulder or ...

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© 1998 SGC Inc

... it can also be carried by hand.

Professional, high quality stainless steel latches
provide reliable and secure connection of the bat-
tery pack and front cover. The cover provides
protection of the front of the radio and storage
for the microphone.

SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA

P.O.Box 3526, 98009 Fax: [phone] or 746-7173 Tel: [phone] or 1-800-259 7331

E-mail: [e-mail] Web site: http://www.sgcworld.com

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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: [phone] or 746-7173 Tel: [phone] or 1-800-259 7331

E-mail: [e-mail] Web site: http://www.sgcworld.com