Galaxy DX 929 Посібник користувача - Сторінка 2

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CHAPTER 1 SPECIFICATIONS

GENERAL

Model

Channels

Frequency Range

Emission

Frequency Control

Frequency Stability

Temperature Range

Antenna Impedance

Antenna Connectors

Input Voltage

Size

Weight

TRANSMITTER

RF Power Output

Spurious Emission

Unwanted Sideband

Audio Distortion

Frequency Response

Microphone

RECEIVER

Sensitivity for 10 dB (S+N)/N

Squelch Sensitivity

Selectivity

Image Rejection

Hum & Noise

AGC Figure of Merit

Audio Power Output

Audio Response

(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)

DX 929

26.965 ~ 27.405 MHz

Phase-Lock-Loop (PLL) Synthesizer

0.001%

-30°C to +50°C

50 Ohms

Standard SO-239 type

13.8V DC

7 1/4" (W) x 9" (D) x 2 1/4" (H)

3.4 lbs.

AM: 4 watts

> -60 dB

-50 dB

< 5%

300 to 2500 Hz

Dynamic

< 0.5 uV

> -50 dB

> 60 dB

> -40 dB

50 mV for 10 dB Change in Audio Output

2.5W @ 10% Distortion

300 to 2500 Hz

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CHAPTER 2 INSTALLATION

INSTALLING THE RADIO

Choose a convenient location for operation that does not interfere with driver or

passenger. This radio is supplied with a universal mounting bracket. When mounting

the bracket and radio to your car, make sure it is mechanically strong. Also, provide a

good electrical grounding connection to the chassis of vehicle. Proceed as follows to

install the radio.

1. Locate a convenient area in your vehicle for the installation of the radio. Hold the

mounting bracket with the radio in the location where the radio is to be installed.

Make sure nothing will interfere with either the radio or the mounting bolts. Mark

and then drill holes for the mounting bracket.

2. Most radio antennas come equipped with a PL-259 plug. Connect this plug to the

ANT. Jack in the rear of the radio.

3. Extending from the rear of the radio is a fused red and black wire for the DC

connections to the vehicle's electrical system. For best performance, it is strongly

recommended that the red lead be taken directly to the positive terminal on the

vehicle's battery and the black lead be connected to the nearest chassis ground.

(Note: This radio is designed for vehicles with negative ground systems.)

Connections should be made using appropriate "crimp on" lugs of a size large

enough to make good contact with the bolt used to fasten to the battery and the

chassis ground. It is a good safety idea to install a second fuse that would provide

protection in case the red wire was to "fray" or get pinched and short to the body

of the vehicle, somewhere between the battery and the radio.

Poor power connections cause supply voltage drops that can substantially

decrease the performance of your radio. A good DC connection is probably one of

the most important things for getting the best transmitter performance and in some

cases, least receiver noise.

4. Mount the microphone bracket near the radio in an easily accessible spot using the

two screws provided.

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