Heathkit SB-401 Assembly Manual page 145

Page 121
HEATHKIT®
55 db below rated output (except at 3910 kHz
crossover which is 45 db).
Oscillator Feedthrough or Mixer Products ••••
55 db down from rated output.
Carrier Suppression. • • • • • • • • • • • • • • • •
Backlash ••••••••••••••••••••••••••
Within 400 Hz on all bands, after calibration
at the nearest 100 kHz point.
No more than 50 Hz.
•
• • •
• •
• •
•
•
•
• • •
Electrical Dial Accuracy.
Within 200 Hz on all bands.
•
• •
• • •
•
•
• • •
•
• •
Visual Dial Accuracy •••
50 to 75
n
with less than 2:1 standing wave
ratio (SWR).
Output Impedance •••••••••••••••••••
100 watts on 80 through 15 meters; 80 watts
on 10 meters (50
n
nonreactive load).
RF Power Output. • • • • • •••••••••••••
SSB: 180 watts P.E.P.
cw.
170 watts.
DC
Power Input. • • • • • • • • • • • • • • • • • • •
Continuous wave (CW).
Single sideband (SSB)-suppressed carrier, with
selectable upper or lower sideband.
Types of Emission •••••••••••••••••••
Less than 100 Hz drift per hour after 20 minutes
warmup under normal ambient conditions. Less
than 100 Hz drift for ±10% line voltage var-
iations.
• • •
•
•
• ••••••••••
Frequency Stability.
LMO (linear master oscillator).
•
••••••••••• • • • •
Frequency Selection.
3.5 to 4.0; 7.0 to 7.5; 14.0 to 14.5; 21.0 to 21.5;
28.0 to 28.5; 28.5 to 29.0; 29.0 to 29.5; and 29.5
to 30.0.
Frequency Coverage (megahertz). • • • • • •
SPECIFICATI