OPERATOR’S MANUAL MIDLAND MODEL 71-506-10D FULL-DUPLEX MOBILE Preliminary August, 2006
SAFETY/WARNING INFORMATION This radio is restricted to occupational use, work related operations only where the radio operator must have the knowledge to control the exposure conditions of its passengers and bystanders by maintaining the minimum separation distance of 0.3 m(1 foot). Failure to observe these restrictions will results in exceeding the FCC RF exposure limits. ANTENNA INSTALLATION: The antenna must be located at least 0.
1.0 INTRODUCTION Thank you for purchasing the MIDLAND MODEL 71-506-10D Full-Duplex Mobile Radio. This manual contains information to assist you in the application and operation of the radio. The 71-506-10D is a building block intended for use in systems requiring a compact radio for full duplex, repeater, link, etc. The radio is capable of both analogue and digital modulation.
2.4 Front Panel Features The front panel includes the following: 1. UHF Type connector for the Transmitter (optional type “N”) 2. LEDs to indicate: A=POWER, B=BUSY, C=TRANSMIT, D=ALARM, and E=REPEAT 3. Miniature jack for speaker audio output 4. BNC Connector for the Receiver 5. DC Power Connector 6. 25 position D sub connector for interface to the external control system 7. 9 position D sub connector for connection to a PC for programming 8. Model Number / FCC Label 1 A B C D 8 3 4 5 7 2.
3.0 OPERATION 3.1 Installation and Programming 71-506-10D can be installed to operate Fixed Station in any mode of operation. The antenna(s) used for this transmitter must be fixed-mounted on outdoor permanent structures. RF exposure is addressed at the time of licensing, as required by the responsible FCC Bureau(s), including antenna co-location requirements of §1.1307(b)(3). The radio may also be used for mobile and transportable applications.
3.2 Basic Operation Note that controls and functions will vary with different control systems and with programming. 3.2.1 Switch On Switch the 71-506-10D "ON" , the POWER indicator should illuminate. 3.2.2 Adjust the Volume Setting Rotate the Volume Knob clockwise until the audio level from the speaker is suitable. 3.2.3 Adjust the Squelch Setting Rotate the Squelch Knob clockwise (from the fully counter clockwise position) slowly until the background noise can no longer be heard.
4. CONTROL INTERFACE CONNECTOR DESCRIPTION A 25 position D-sub connector for remote control is provided on the front panel of KG506. The functions of each pin are as follows; 1 CH 0, 1 apply 1 to 6 bits of binary input to pins 1 thru 6 to select 64 2 CH 1, 2 channels, pull “LOW” for active state. Pin 1 is LSB. 3 CH 2, 4 4 CH 3, 8 5 CH 4, 16 6 CH 5, 32 MSB 7 GROUND Ground 8 RSSI Receive Signal Strength Indication, 0 to 5 V DC 9 DISC. OUT Discriminator audio output, low level 10 SQ. CONT.
6. SPECIFICATIONS 6.1 General Frequency Range Version SA Version A Version B Version C Version DS Version D Version E Version F 300 - 335MHz 335 - 370MHz 365 - 400MHz 400 - 435MHz 420 - 455MHz 440 - 475MHz 465 - 500MHz 485 - 520MHz Number of Channels Channel Spacing Operation Mode Antenna Impedance Power Supply Consumption Environmental Conditions Dimensions Weight 64 channels (observe duplexer limitations) 12.5/20/25/30KHz Semi Duplex/Full Duplex 50 ohm unbalanced DC 13.
