SGC SG-2020 TEST DOCUMENT, Инструкция по установке и эксплуатации

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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
10-meters: 28.0 - 29.7 MHz 12-meters: 24.890 - 24.990 MHz
15-meters: 21.0 - 21.450 MHz 17-meters: 18.068 - 18.168 MHz
20-meters: 14.0 - 14.350 MHz 30-meters: 10.100 - 10.150 MHz
40-meters: 7.0 - 7.3 MHz 80-meters: 3.5 - 4.0 MHz
160-meters: 1.8 - 2.0 MHz
(+): Positive (power supply input).
(-): Negative (power supply input).
A3A: Mode of single sideband with -16dB pilot carrier.
A3H: AME or AM compatible (carrier with only upper sideband).
A3J:
Telephony; single sideband with suppressed carrier.
AGC: Automatic gain control which prevents receiver overload.
ALC: Automatic loading control which prevents transmitter over load.
AMP: Amplifier.
AMTOR: Amateur radio equivalent of SITOR with slightly different stan-
dards
ATTN:Attenuator which reduces a received signal.
ADSP: Adaptive Digital Signal Processing; exclusive to SGC, a DSP
technology which processes the signal to eliminate unwanted noise and
improve incoming signal.
AM: Amplitude modulation, low efficiency type of radio transmission.
generally used for broadcast AM radio station bands with 100% carrier
inserted.
AMVER: Coast Guard operated system for rescue "automated mutual
assistance vessel rescue system."
AM BROADCAST BAND: A band ranging from 530 to 1605 KHz.
AMATEUR BANDS: Frequency bands set aside for amateur radio operators.
AMPLITUDE: The height of a radio or sound wave–loudness.
AMPLITUDE MODULATION: Adding information to an RF carrier by
increasing and decreasing amplitude.
ANALOG: Representing data with physical quantities (a watch with hour and
minute hands is an analog time display).
ANTENNA: any part of any SSB system that radiates radio energy.
ARQ: automatic repeat request; a mode to compare transmission; a repeat
signal is sent only when requested by the receiving station.
BAND: a range of frequencies, usually within a one MHz span.
BANK: a collection of channels to be scanned as a group in order.
BINARY: A system of numbers represented only by digits 0 and 1.
(Contrast with decimal which uses digits 0 through 9.)
CAPACITOR: A device to store electrical energy.
Glossary