DX-440 AM/FM Direct Entry Communications Receiver
(200-0221) Specifications Faxback Doc. # 17506
SEMI CONDUCTORS:.................................................1 pc. LSI
7 pcs. ICs
8 pcs. FETs
44 pcs. Transistors
59 pcs. Diodes
7 pcs. LEDs
CIRCUIT:
FM:......................................................superheterodyne
AM(LW,MW,SW):............................Dual conversion superheterodyne
FREQUENCY RANGE:
FM:.....................................................87.5MHz - 108MHz
AM:...................................................150kHZ - 29999kHz
LW:.....................................................150kHz - 281kHz
MW:....................................................520kHz - 1620kHz
SW:......................................divided into 12 shortwave bands
120M 2300kHz - 2500kHz
90M 3200kHz - 3400kHz
75M 3900kHz - 4000kHz
60M 4750kHz - 5060kHz
49M 5800kHz - 6200kHz
41M 7100kHz - 7500kHz
31M 9500kHz - 9900kHz
25M 11650kHz - 12050kHz
19M 15100kHz - 15600kHz
16m 17550kHz - 17900kHz
13M 21450kHz - 21850kHz
11M 25600kHz - 26100kHz
ANTENNAS:
LW/MW:......................................Built in ferrite bar antenna
SW:............................................Swivel telescopic antenna
External antenna terminal
FM:............................................Swivel telrscopic antenna
External antenna terminal. (Not apply to W. Germany)
OUTPUT:.....................................................1200W (10% THD)
JACKS:.....................................1. DCjack for external power (9)
2. Headphones Jack - 3.5 for mini stereo headphones
POWER SOURCES: 1. For Power when not playing radio:
(AA size) penlight batteries such as Radio Shack
23-552 or 23-580 (not supplied) for memory backup (3V).
2. For power to play radio:
a. (D size) battery such as Radio Shack 23-550 or 23-
580 (not supplied) X 6pcs. (9V)
b. AC adapter 9V/400mA center negative
DIMENSIONS:.............11 1/2" X 6 3/10" X 2 9/25' (292mm x 160mm x 60mm)
WEIGHT:......................1.7kg. (3.75 lbs or 60 oz ) without batteries.
ACESSORIES:..................................................Shoulder Strap
SENSITIVITY: (for 20 dB Signal-to-Noise ratio):
AM 150 kHz 1260 uV/m
300 kHz 560 uV/m
600 kHz 320 uV/m
1.4 MHz 4 uV
3.1 MHz 4 uV
7.1 MHz 4 um
15.1 MHz 4 um
(for 10 dB Signal-to-Noise ratio):
SSB 150 kHz 100 uV/m
300 kHz 40 uV/m
600 kHz 25 uV/m
1.4 MHz 22 uV/m
3.1 MHz 0.4 uV
7.1 MHz 0.4 uV
15.1 MHz 0.4 uV
28.1 MHz 0.4 uV
(for 30 dB Signal-to-Noise ratio):FM 87.5 to 108 MHz 4uV
IMAGE REJECTION RATIO:
AM/SSB 150 kHz 48 dB
300 kHz 65 dB
600 kHz 65 dB
1.4 MHz 60 dB
3,1 MHz 60 dB
7,1 MHz 60 dB
15.1 MHz 60 dB
28.1 MHz 60 dB
FM 87.5 to 108 MHz 40 dB
SELECTIVITY:
AM/SSB -6dB -50dB
Wide +/-2kHz +/-7kHz
Narrow +/-2khz +/-4kHz
IF AM/SSB/CW 1st 55.845 MHz
2nd 450 kHz
FM 10,7 MHz
Frequency Stability: Within 1 kHz per hour after 60 minutes warm up.
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