TABLE OF CONTENTS Page SAFETY INFORMATION 5 2 GENERAL RADIO OPERATING PROCEDURES 7 3 SPECIFICATIONS 9 4 INTRODUCTION 11 5 MAIN FEATURES 11 BLOCK DIAGRAM AND DESCRY N 13 6.1 FRONT END 13 62 INTERMEDIATE FREQUENCY 13 6.3 POWER AMPLIFIER 14 6.4 CONTROLLER BOARD 14 7 SETUP 15 7.1 PROGRAMMING SOFTWARE INSTALLATION 15 72 CHANNEL MODULE CONNECTIONS 15 73 MODE OF OPERATION SETTING 16 7.4 FREQUENCY OF OPERATION SETTING 17 7.5 GAIN SETTING 17 7.5.1 NORMAL GAIN SETTING 17 7.5.
FCC Class A Digital Device or Peripheral Information to User NOTE This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant 0 Part 15 of the FCC Rules. These limits are designed 10 provide reasonable protection against harmful interference when the equipment is operated in a commercial environment, This equipment generates, uses, and can radiate radio frequency energy and.
L DAE AR A a Soi 1 SAFETY INFORMATION The following information may of may not be applicable to your product. In any case. precautions should always be taken when handling any electrical product. + This manual contains important safety and operating instructions, therefore keep this manual always on hand! « Prior to using any product, follow all warning, safety and operating instructions written on the product and in the user's manual.
The operator of any mobile radio should be aware of certain hazards common to the operation of vehicular radio transmissions. A list of possible hazards follows: 1. Explosive Atmospheres To ensure safety, make sure that the radio is off while fueling the vehicle. When the radio is mounted in the back of the Tuk, never have containers of fuel in the trunk of the vehicle.
Mobile radio installations in vehicles powered Dy liquefied petroleum gas with the LP gas container in the trunk or other sealed-off space within the inferior of the vesicle must conform to the National Fire Protection Association standard (PAN) 58 requiring that: a. The space containing the radio equipment shall be isolated by a seal from the space containing the LP gas container and its fittings. b. Outside filling confections ball be used for the LP gas container. £.
The IC and FCC requires the operator to manumit station identification at certain times Dy means of call Setters. Refer to the IC and FCC rules for your station's particular type of operation for the proper procedure. No changes or adjustments shall be made to the equipment except by an authorized or certified electronics technician.
Electrical Specifications CM YHF LP CM UHF LP [CM B00LP Frequency of Operation 136-174 MHz 403-470 MHz | 806-960MHZ. Sensitivity -117 dBm Input Carrier Detection Threshold 11010 -30 dBm Carrier Detection Threshold Adjustment Step DBMS Carrier Detection Attack Time elms ‘Maximum Gen Range On-Channel Repeater (OCR) 7010 120 dB {Programmable} Translator 7010 145 dB AGC Range 70dB AGC Attack Time sims AGC Decay Time sims Output Power 10 to +30 dBm Output Power Tolerance 0dB.
Electrical Specifications Fa CM VHF HP CM UHF Frequency of Operation 136.174 MHz 403470 MHz [ 806-960MHZ Sensitivity -117 dBm Input Carrier Detection Threshold “110 to -50 dBm. Carrier Detection Threshold Adjustment Step 24Bm Carrier Detection Attack Time
4 INTRODUCTION This manual describes the Future com Channel Module (CM). The Chan net Mauled is a synthesized, microprocessor-based, high performance radio unit. Iris designed to increase the coverage xed of an existing radio site by receiving and rebroadcasting from host to user (downwind, and from user 10 host (linkup. The operation of the Channel Module is fully transparent to the user of the host radio system.
the unit. Software upgrade/change can be performed remotely in the same way as personality change. The chassis of the Channel Module is made of cast aluminum. The rugged construction of the unit minimizes micro phonics and internal feedback. The unit is in standard double Euro card format. The installation of the Channel Module is performed by simply plugging it inch a 19” rack mount card cage which is 6 Rack Unit high (10.5) and connecting RF input and output to SMA connectors.
6 BLOCK DIAGRAM AND DESCRIPTION The block diagram of the Channel Module is shown in 8DO46A14 drawing. The Channel Module consists of four blocks: Front End, Intermediate Frequency, Power Amplifier and Controller module, 6.1 FRONT END Front End starts with a band-pass filter that filters out of pans unwanted frequencies. 1t is followed by an amplifier which can be switched in/out of the signal path under software control. A software 30dB controlled attenuation is next.
The output from the Intermediate Frequency section is the final output frequency. 6.3 POWER AMPLIFIER The Power Amplifier is capable of delivering up to 20W output. A band-pass filter filters out of band unwanted signals. The driver and the power amplifier provide the required output power. The output power level is set under software control. The real output power is compared with the desired output power level.
7 SET UP 7.1 PROGRAMMING SOFTWARE INSTALLATION Future com GA046X01 Programming Software must be installed on a personal computer which will be used for the Channel Module field system installation, The personal computer must run under MS-DOS operating system. Software must be installed only once before the first Channel Module installation. 1 The following steps must be performed for the Future com Channel Module Programming Software installation: Select the hard disk drive where software will reside, e.g.
7:3 MODE OF OPERATION SETTING The procedure to set up the mode of operation for the Channel Module is as follows: L w 16 Make sure that the Future com Chanel Module Programming Software is installed as described earlier. Connect the Channel Module as described in Channel Module Connections section and power it up. Connect the personal computer to the Channel Module front panel RS-232 connector with Future com CM Serial Programming Cable, part number TWO38XA1-0L.
10. Select “File” field and then select “Enif” using cursor keys. Press . With cursor keys select Yes as an answer 10 Exit from program. Press . 7.4 FREQUENCY OF OPERATION SETTING The procedure to set up the mode of operation for the Channel Module is as follows: 1. Follow Steps MODE OF OPERATION SETTING section. Set the frequency of operation in “Rx Frequency” field for the OCR mode. Set the frequencies of operation in “Rx Frequency” and “Tx Frequency” fields for the Extender mode.
The procedure to setup the Channel Module is as follows: 1 18 Folio Steps MODE OF OPERATION SETTING section, Note their fields starting with “7” are readings. All otter fields are used to set desired parameters of the Channel Module. Set power in “RF Amp” field 0 Revel over DBMS. Tum on the Tx power amplifier by setting the lowest possible RF level in “Ry Level threshold compactor.
7.5.2. Strong Si in Set The “From: End Sensitivity” should be always lower (more sensitive) than “Rx Level threshold comparative” setting. If the input RF signal is a strong signal, ie. “Rx Level threshold comparative” is set at -DBMS or stronger, “Front End Sensitivity” should be adjusted before “Rut Max. Gain”. Decreasing “Front End Sensitivity” decreases inter modulation products in the Front End which is important for stronger RE input signals. (Decreasing “Rx/Tx Mux.
8 OPERATION 8.1 GENERAL The Channel Module does not require any supervision once it is installed and set up. The status of the unit is indicated by Front Panel Indicators: . TX DIS Indicator is a dual function indicator. . TX DIS Indicator is on when transit is disabled as described later. TX DIS Indicator is flashing when one of the synthesizers is out of Jock (likely due to the Channel Module not being properly programmed). DC ON Indicator shows that the Channel Module is supplied by DC power supply.
83 RESET RESET switch is accessed via the front panel hole with 2 round tool 2.5mm in diameter. RESET switch is used to reset the Channel Module in an likely event of malfunction.
PROGRAMMABLE OPTIONS 9 PROGRAMMABLE OPTIONS The Channel Module provides several programmable options. The only option of interest for the user is summarized below: « Gamier Control Timer (CCT) sets the maximum time the Channel! Module can remain keyed up. The Carrier Control Timer can be programmed for OFF and minuteness to minuteness in 0.25 minute (sec) steps as follows: 1. Follow Steps MODE OF OPERATION SETTING section. 2. Move around the screen using cursor keys till “CCT Timer” field is searched.
REVISIONS _— = 8D046A14 Sy Ingres alkaline SHT 1 & FINAL TITLE CONFIDENTIAL CHANNEL MODULE FIRST MADE FOR : F.C.F.0. FRONT END INPUT BPF LNA ond | Attenuation i ! Lo-1 Y Attenuation and Automatic Level Contort Lc DRAWN BY FLC MAY 4/97 CH £D BY Fist Tow 5 , 197 | TELEMETRY GROUCH IMC.
WARRANTY Computer Systems Group Tuc. warns to te original purchaser all standard produces sid by Forecourt Systems Group Inc. o be {res of defects in magnesia and workmanship for one (1) year from te date of shipment frees Futurologist Systems Group Ine.