Walter Drake SW8 - Manual (Page 8)

2 Introduction - Specifications
OPTIONAL ACCESSORY:
MS8 - A complementary styled external speaker.
Frequency Range
Sensitivity: SSB
(10 dB S+N/N)
Sensitivity: AM
(10 dB S+N/N)
(1000 Hz, 30% Mod)
Sensitivity: FM
(20 dB S/N)
Frequency Stability
Frequency Accuracy
Selectivity- SSB, AM:
IF Frequency- SSB, AM:
1st IF
2nd IF
FM:
1st IF
Image Rejection
IF Rejection
Dynamic Range
IP3 - Intercept Point
(@ 50 ohm Ant. input)
(Attenuator Off)
AGC Performance
Internal Antenna
Antenna Inputs:
0.1 - 30 MHz
87 - 108 MHz,
118 - 137 MHz
External Speaker
Output
Line Audio Output
Headphone Jack
DC Power
Requirements
Operating
Temperature
Weight
Size
Supplied AC Adaptor
Wall Transformer
41 inch length telescoping whip
(for use on all bands).
SO-239, 50 ohm connector or 3-
terminal compression connector for
either 50 OHM or 500 OHM input
with ground.
2-terminal compression connector,
300 ohm balanced input
2.0 Watts into 4 ohm speaker @ less
than 5 % THD with a 9 VDC supply
voltage. Output is a bridged amplifier,
(DO NOT GROUND).
300 mVolts, 4.7K ohms
1/8 inch stereo/mono type
Input: 7-10 VDC @ 1 Amp, supplied
from AC Adaptor Wall Transformer,
external DC Power Supply or
5.7 to 9.0 VDC supplied by (6)
internally mounted “D” cell (1.5V)
batteries (not supplied).
0 0 to +50 0 C
10 lbs. (includes AC Adaptor)
(batteries NOT included)
Width: 11-1/2 “ (29.2 cm)
(including retractable bail)
Height: 5-1/4" (13.3 cm)
(including retractable bail and feet)
Depth: 13" (33 cm), (including
front knobs and rear panel connectors)
Input: 120 VAC ±10%, 15 Watts
Output: 9 VDC @ 1 Amp maximum
MODE
AM
AM SYNC
SSB
FM
BACKLIGHT
ON
700 mA
730 mA
730 mA
570 mA
OFF
570 mA
600 mA
600 mA
440 mA
Current requirements (approximate) from 9.0 VDC
Supply or Batteries with 1/4 W average Audio Output:
100 - 30,000 kHz (0.1 - 30 MHz)
87 - 108 MHz, 118 - 137 MHz
AM, USB, LSB modes (0.1 - 30 MHz)
AM mode only for 118 - 137 MHz
FM mode only for 87 - 108 MHz
Less than 0.5 µ V, 0.1 - 30 MHz
Less than 2.0 µ V, 0.1 - 30 MHz
Less than 4.0 µ V, 118-137 MHz
Less than 4 µ V, 87 - 108 MHz
(monaural)
+/-10 ppm, 0 0 to 50 0 C
Better than +/-100 Hz, @ 25 0 C
6 kHz @ -6 dB, less than 12 kHz
@ -60 dB
4 kHz @ -6 dB, less than 9 kHz
@ -60 dB
2.3 kHz @ -6 dB, less than 5 kHz
@ -60 dB
55.845 MHz
455 kHz
10.7 MHz (Single Conversion)
Greater than 60 dB, 0.1 to 30 MHz
Greater than 60 dB, 118 to 137 MHz
Greater than 50 dB, 87 to 108 MHz
Greater than 80 dB, 55.845 MHz
Greater than 80 dB, 455 kHz
Greater than 95 dB, 0.1 to 30 MHz
@ 20 kHz spacing (SSB, 2.3 kHz BW)
Greater than +10 dBm @ 20 kHz
spacing
Greater than -20 dBm @ 5 kHz
spacing
Threshold: 1.0 µ V
Attack Time: 1 mSec.
Release Time - SLOW: 3 sec.
- FAST: 300 mSec.
Less than 4 dB change in audio output
for 100 dB RF input change referenced
from the AGC threshold point.
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