ARD25 MULTIMODE DATA RECEIVER FOR USE WITH A COMPANION RECEIVER INSTRUCTION MANUAL AOR, LTD.
TABLE OF CONTENTS 1 Index 1-1 1-2 1-3 1-4 2 Introduction --------------------------------------------------------------------------------------- 2 Power requirements --------------------------------------------------------------------------- 3 Supplied accessories ------------------------------------------------------------------------- 3 Features ------------------------------------------------------------------------------------------ 3 Control and functions -------------------------------------------
1 Introduction 1-1 Introduction Thank you for purchasing the ARD25 Multimode Data receiver. In recent years, many communications have changed from analog mode to digital mode to meet more communication demands. APCO Project 25, as an example, has been adopted by many public safety or police departments in several major cities. The ARD25 is designed to convert conventional APCO25 (P25) digital communications to analog signals.
1-2 Power requirements The ARD25 comes with a 120 V AC adapter. The ARD25 is designed for operation from a nominal 12 V DC regulated power supply (12 to 14 V is acceptable), which should be capable of supplying a minimum of 1 amp, continuous. [Note: Never connect the ARD25 directly to an AC outlet.] The DC power jack uses a mini power connector and is wired center positive (+), the chassis of the unit is at negative ground.
2 Controls and functions 2-1 Front panel controls The front panel of the ARD25 features three status LEDs, a power switch, gain control and headphone jack. 1 Power switch Slide the Power switch to the right to switch on the ARD25. To switch off the ARD25, slide the Power switch to the left. The green LED will light when power is on. 2 P- 25 LED Lit while decoding P25 digital signals. 3 BUSY LED Lit while receiving signals in analog mode or digital mode.
2-2 Rear panel The rear of the ARD25 has one (1) DB-9 connector for connection to a PC, one (1) BNC connector for IF input, one (1) DC power connector, one (1) speaker input, and one (1) speaker output. 1. RF IN Using the supplied coaxial cable with a BNC connector at each end, connect to the IF output from the companion receiver such as an AOR AR5000 series receiver. 2. SP IN (3.5 mm monaural jack) Using the supplied speaker cable with a 3.
3 Connection to a receiver 3-1 Configuration of the AR5000 receiver Before connecting the ARD25 to a receiver, the power switch of the ARD25 and the receiver must be turned off. In order to operate the ARD25, the following setting is required for the AR5000 receiver. External IF output: EXT – IF1 (Note: See details on page 29 of the AR5000 instruction manual.) 3-2 Configuration of the companion receivers Your ARD25 may be used with the following companion receivers.
5 Operating the ARD25 5-1 Power LED Once the ARD25 is switched on, the green LED will light indicating power is applied to the ARD25. 5-2 Receiver settings 1. 2. Set your receiver to the desired frequency. If you intend to monitor analog NFM (Narrow FM) mode, set the squelch threshold and adjust the volume control to 10 o’clock position. 5-3 Receive mode (1) DIGITAL mode As the input signal to the ARD25 is taken from the 10.
6 Computer control information Your ARD25 is controllable by a PC via the RS-232C interface. No specific hardware interface is required, just a straight RS-232C cable. The ARD25 is equipped with an RS-232C port in addition to the connection port for a receiver. The RS-232C port uses a DB-9 connector.
Off frequency adjustment: Signal modulation: Squelch: Power requirement: Serial port: Speaker input connector: External Speaker output: Headphone output: Weight: Dimensions: Standard accessories: Analog Narrow FM signal Automatic (AFC) ± 20% from the specifications (Automatic adjustment) Level squelch (Analog mode), adjustable squelch level 11 - 16 V DC, 140 mA (at 12 V DC) typical RS-232C 9600bps Asynchronous, 8 bit, Non parity, 1 stop bit 3.5 mm mono 3.5 mm mono 3.
modifications. 2. Problems that arise through failure to follow directions in the owner’s manual. 3. Exposure of the product to adverse or severe weather conditions, including temperature extremes or water, including rainfall or immersion. 4. Exposure to toxic materials, biohazards, radioactive materials or other contamination. 5. Repairs attempted by parties other than AOR or its authorized personnel. 6.
Manufactured by AOR, LTD. 2-6-4, Misuji, Taitok-Ku Tokyo, 111-0055, Japan http://www.aorja.com Distributed by AOR USA, INC. 20655 S. Western Ave. Suite 112 Torrance, CA 90501, U.S.A. Phone: 310-787-8615 Fax: 310-787-8619 http://www.aorusa.com info@aorusa.com Copyright © 2004 All rights reserved REV. 1.0 Printed in the U.S.A.
