SGC SG-2020 TEST DOCUMENT, Installation And Operation Manual

Page: 22 / 95

© 1998 SGC Inc
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8.1.4 "PBT" (Passband Tuning)
The "PBT" button will activate passband tuning. The display will
show the passband offset in KHz. Turn the main tuning knob while
pressing the "PBT" button to change the passband tuning as
desired.
This will shift the IF passband relative to the BFO frequency. The
adjustment rate is from -1000 Hz to +300 Hz in 100 Hz steps.
Note:
Accurate calibration is not supported in Passband Tuning
8.1.5 NB (Noise Blanker)
This button controls the noise blanker. The LED above the NB but-
ton is lit when the blanker is activated. The noise blanker is
designed to provide modest blanking of impulse (ignition) type
noise without degrading the performance of the receiver. Normally
the blanker would remain in the off condition.
8.1.6 "XCVE" / RIT / SPLIT
The receiver is general coverage and can be tuned to any
frequency between 1.8 MHz and 29.7 MHz. The transmitter will
not operate if the frequency is set outside the amateur bands. Inside
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
Shown at left is the
e ffect of the passband
tuning. Assume the
bandwidth is set at 2.0
KHz. For lower side-
band, all adjustments
are symmetrical in
relation to the upper
sideband.