Galaxy dx88hl User Manual

WARRANTY

This radio is covered by a two year limited parts and labor warranty.

•“Limited” means that we will repair problems caused by factory defects or normal use at no charge.

•Before returning a radio to us for warranty service, please call our Service Department for a Repair Authorization Number (RAN). This RAN must be written below your return address on the outside of the shipping box. Boxes, which arrive without a RAN, will be refused, and the shipping company will return the unopened box to you. Be sure to have a pen and paper ready along with the serial number of your radio before calling. We will give you the RAN and our shipping address over the phone. The telephone number of the Service Department is [phone], and we suggest calling between 10:00 AM and 4:00 PM Pacific Time.

•Please include a note with a detailed description of the symptoms. This is important because it will help the technician who works on your radio to locate your problem. Intermittent problems are easily overlooked, so be sure to give as much detail as possible in your note. Also, please include your telephone number in case our technicians have any additional questions.

•Do not send your power cord or microphone unless we ask for these items during our telephone conversation.

•You are responsible for getting the radio safely to us. (We suggest using United Parcel Service.) You must pay to ship the radio to us, and we will pay to ship the radio back to you. Since we use UPS and they do not ship to Post Offices boxes, please provide us with a street address for the return of your radio.

•We will repair and return your radio as soon as we can. We appreciate your choosing a Galaxy radio and we want you to be on the air as much as possible!

Be sure to visit our web site at

www.GalaxyRadios.com

Printed In Malaysia

AT2100013P

PD000929

DX−88HL

Full Channel AM/FM/SSB Mobile

Built in Frequency Counter AM/FM 10W • SSB 25W with Roger Beep

OWNER’S MANUAL

TABLE OF CONTENTS
	Page
Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2
Installation
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4
Mounting the Connection . . . . . . . . . . . . . . . . . . . . . .	4
Ignition Noise Interference . . . . . . . . . . . . . . . . . . . . .	5
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
Tuning the Antenna for Optimum SWR . . . . . . . . . . .	6
External Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7
Operation
Control Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	11
Press-To-Talk Microphone . . . . . . . . . . . . . . . . . . . . .	12
Operating Procedure to Receive. . . . . . . . . . . . . . . . .	12
Operating Procedure to Transmit . . . . . . . . . . . . . . . .	12
Receiving SSB Signals . . . . . . . . . . . . . . . . . . . . . . . .	13
Roger Beep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	14
Alternate Microphones and Installation . . . . . . . . . . .	15

Specifications

GENERAL

Channels	40 CH
Frequency Range	28.315 to 28.755 MHz
Frequency Control	Phase Lock Loop (PLL) synthesizer.
Frequency Tolerance	0.005%
Frequency Stability	0.001%
Operating Temperature	-30°C to +50°C
Range
Microphone	Plug-in dynamic; with push-to-talk
	switch and coiled cord.
Input Voltage	13.8V DC nominal, 15.9V max, 11.7V
	min. (positive or negative ground).
	Transmit: AM full mod., 4A.
	SSB 25 watts PEP output, 6A
	Receiver: Squelched, 0.6A
	Maximum audio output, 1.2A
Size	2-3/8” (H) x 7-7/8” (W) x 9-1/4” (D).
Weight	5 Ibs.
Antenna Connector	UHF, SO239
Meter	Illuminated; indicates relative output
	power, received signal strength and
	transmit power.

TRANSMITTER

Power output	AM/FM/ 10 watts.
	SSB, 25 watts PEP.
Modulation	High-and low-level Class B, Amplitude
	Modulation: AM. Variable
	Frequency Modulation: FM.
Intermodulation	SSB: 3rd order, more than –25dB.
Distortion	5th order, more than –35dB.
SSB Carrier Suppression	55dB
Unwanted Sideband	50dB
Frequency Response	AM and FM: 450 to 2500 Hz.
Output Impedance	50 ohms unbalanced.
Output Indicators	Meter shows relative RF output power
	and SWR. Transmit LED glows red
	when transmitter is in operation.

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RECEIVER

Sensitivity	SSB: 0.25 uV for 10 dB (S=N)/N at
	greater than ½-watt of audio output.
	AM: 1.0 uV for 10 dB (S+N)/N at
	greater than ½-watt of audio output.
	FM: 1.0 uV for 10 dB (S+N)/N at greater
	than ½-watt of audio output.
Selectivity	AM/FM: 6 dB @ 3KHz, 50 dB @ 9KHz.
	SSB: 6 dB @ 2.1KHz, 60 dB @ 3.3KHz.
Image Rejection	More than 65 dB.
IF Frequency	AM/FM: 10.695 MHz 1st IF, 455 KHz
	2nd IF
	SSB: 10.695 MHz
Adjacent-Channel	60 dB AM/FM & 70 dB SSB
Rejection
RF Gain Control	45 dB adjustable for optimum signal
	reception.
Automatic Gain Control	Less than 10 dB change in audio output
(AGC)	for inputs from 10 to 100,000 microvolts.
Squelch	Adjustable; threshold less than 0.5 uV.
ANL	Switchable.
Noise Blanker	RF type, effective on AM/FM and SSB
Clarifier Range	Fine (TX/RX) ±1 KHz.
Audio Output Power	4 watts into 8 ohms.
Frequency Response	300 to 2800 Hz.
Built-in Speaker	8 ohms, round.
External Speaker	8 ohms; disables internal speaker when
(Not Supplied)	connected.

Installation

LOCATION

Plan the location of the transceiver and microphone bracket before starting the installation. Select a location that is convenient for operation and does not interfere with the driver or passengers in the vehicles. In automobiles, the transceiver is usually mounted below the dash panel, with the microphone bracket beside it.

MOUNTING THE CONNECTION

Your transceiver 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 connection to the chassis of the vehicle. Proceed as follows to mount the transceiver:

1.After you have determined the most convenient location in your vehicle, hold the transceiver with mounting bracket in the exact location desired. If nothing will interfere with mounting it in the desired position, remove the mounting bolts. Before drilling the holes, make sure nothing will interfere with the installation of the mounting bolts.

2.Connect the antenna cable plug to the standard receptacle on the rear panel. Most antennas are terminated with a type PL-259 plug and mate with the receptacle.

3.Connect the red DC power input wire (with the fuse) to +13.8V DC. This wire extends from the rear panel. In automobile installation, +13.8V DC is usually obtained from the accessory contact on the ignition switch. This prevents the set being left on accidentally when the driver leaves the car and also permits operating the unit without the engine running. Locate the accessory contact on most ignition switches by tracing the power wire from the AM broadcast receiver in the car.

4.Connect the black lead to –13.8V DC. This is usually the chassis of the car. Any convenient location with good electrical contact (remove paint) may be used.

5.Mount the microphone bracket on the right side of the transceiver or near the transceiver, using two screws supplied. When mounting in an automobile, place the bracket under the dash so the microphone is readily accessible.

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