Specifications; General; Transmitter; Receiver - Galaxy DX 959 Service Manual

DX 959

1.0 GENERAL

Model
Frequency Range
Emission Modes
Frequency Control
Frequency Tolerance
Frequency Stability
Operating Temperature Range
Microphone
Input Voltage
Current Drain : Transmit (AM full mod.)
Current Drain : Receiver (Squelched)
Antenna Connector
Dimensions
Weight

1.1 TRANSMITTER

RF Power Output
RF Transmit Modes
Modulation
Spurious Emissions
Carrier Suppression
Audio Frequency Response
Antenna Impedance
Output Indicators

1.2 RECEIVER

Sensitivity For 10dB S/N (AM)
Sensitivity For 10dB S/N (SSB)
IF Frequency
Image Rejection
Adjacent Channel Selectivity
RF Gain Control
Automatic Gain Control (AGC)
Figure Of Merit
Squelch
Noise Blanker
Audio Output Power
Audio Frequency Response
Built-in Speaker
External Speaker (Not Supplied)
DX 959
(Max. audio output)
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)

SPECIFICATIONS

DX 959
26.965 - 27.405MHz.
AM/USB/LSB
Phase Lock Loop (PLL) synthesizer.
± 0.005 %.
± 0.001 %.
-30°C to +50°C.
Plug-in dynamic; with push-to-talk switch and coiled
cord.
13.8V DC nominal ±15%.
<3.5A.
<0.5A.
<1.0A.
UHF, SO239.
2-3/8"(H) x 7-7/8"(W) x 9-1/4"(D).
5 lb.
AM : 4W SSB : 12W
AM/SSB
High and low level Class B, Amplitude Modulation :
AM and SSB
-55 dB.
-55 dB.
300 to 2500 Hz
50 Ohms.
Meter shows relative RF output power, SWR and AM
Modulation. Transmit
transmitter is in operation.
<0.5 µV.
<0.25 µV.
AM : 10.695 MHz 1st IF, 455 KHz 2nd IF.
-65 dB.
-60 dB.
45 dB adjustable for optimum signal reception.
100 mV for 10 dB Change in Audio Output
Adjustable; threshold less than 0.5 µV.
RF type.
2 watts into 8 Ohms.
AM and SSB : 300 to 2500 Hz.
8 Ohms, round.
8 Ohms; disables internal speaker when connected.
- 2 -
LED glows red when
CHAPTER 2

OPERATION