Eclipse2 UHF / VHF / 800MHz Base Station Technical Manual 3 August 2012
List of Associated Publications Document Number Description TPR-0308920019 IP Commander User Manual Disclaimer Due to our policy of continuous improvement of our products and services, technical specifications and claims that were correct at time going to print maybe subject to variation without notice.
Contents CONTENTS ...........................................................................................................3 INTRODUCTION .....................................................................................................6 FEATURES ...........................................................................................................6 SPECIFICATIONS ....................................................................................................6 General ..........................
Channel Programming.................................................................................................................... 16 Channel Selection .......................................................................................................................... 16 Physical Configuration .............................................................................................................. 16 Connectors ................................................................................
Warnings Although there are no dangerous mains voltages present within the equipment, the following general safety precautions as would normally apply, should be observed during all phases of operation, service and repair of this equipment. AROUND THE EQUIPMENT To minimise any possible shock hazard from an external power supply or lightning strike, the chassis or equipment cabinet must be connected to an electrical ground. Provide adequate ventilation around the rear of the equipment.
Introduction The Eclipse2 series is a Base Station designed for Conventional Analogue FM and Conventional APCO P25 modes of operation. Internally, it is driven by software, allowing future firmware releases to track the development of radio standards and add new modes. Based on a DSP and RISC platform, the base station has a modular design, which provides extensive flexibility for users. For example, it may act as a standalone transmitter/receiver, crossband repeater, and more.
Noise squelch: Carrier squelch: Audio Response: Adjustable from 0 to 26 dB SINAD Adjustable from –120dbm to –60dBm 300Hz to 3000Hz +1/-3dB, Flat or 6dB per Octave de-emphasis < 3% -20dbm to +10dbm @600ohm Audio Distortion: Line output level: Auxiliary Audio Output Frequency Response: 0Hz to 3000Hz DC offset: 4.6 V Peak-peak voltage: 7.
Operation The Reciter will need approximately 30 seconds to boot up after power up. When the transceiver is ready to operate, a voice report (if enabled) can be heard from the front panel speaker, and the Digital/Analog LED will indicate the current operational mode. Front Panel Controls and Indicators The front-panel includes LED indicators, tactile switch buttons, a microphone connector and an USB (type A) connector, refer figure.
Pin No.
Ethernet: The RJ45 Ethernet connector is used for networking the base station via IP protocol, a PC can use this connector to monitor and control the base station locally or remotely. The Reciter supports the 10/100Mbs specification (defined by IEEE802.3u) and the MDI/MDI-X auto crossover function which means either a straight though or crossover cable can be used to connect the base station.
Connecting with Ethernet Ethernet is the interface of the base station, especially for remote monitoring and controlling via an IP Network. Each base station has a unique IP address, to connect, the host PC must be in the same subnet with the base station. Connecting with USB The front-panel USB connector can be also used for connecting to a computer, IP Commander Software loads a USB driver to recognize the base station.
The clock of ADC, DDC and DSP is derived from the system interface board. Interface (Main) board The Interface (Main) board provides the interfaces among the Processor (main) board, RF modules and external equipment. The function of the Interface board can be described as following sub sections. Audio signal processing External audio signals from/to the base station are processed in this section.
Channel Channel Channel Channel Channel Channel Channel Channel Channel 0: 1: 2: 3: 4: 5: 6: 7: 8: monitor speaker volume control 600 ohm audio Line input gain control exciter reverse power of the power amplifier AUX audio input bias setting AUX audio output bias setting receiver IF amplifier gain control (not used in release1 RX module) exciter RF output power control exciter VCO bias setting receiver VCO bias setting The op-amplifiers (U4, U28) are used for converting DAC output to proper voltage which
TX module The TX module can be divided into the VCO, PLL, PA and the Data storage section. The Voltage Controlled Oscillator (VCO) The Voltage Controlled Oscillator uses a junction FET (Q2) which oscillates at the required transmitter output frequency. Varactor diodes (D2, D9, D10, and D11) are used by the PLL and bias control circuits to keep the oscillator on the desired frequency. Transistor Q1 is used as an active filter to reduce the noise on the oscillator supply voltage.
4dB. The network (C28, C74, L29, L15, L16 and R20) passes the IF frequency of 45 MHz and terminates the RF and LO components. The Local Oscillator (LO) The LO is a Voltage Controlled Oscillator (Q2) which oscillates at the required transmitter output frequency. Varactor diodes (D2, D9 - D11) are used by the PLL and bias control circuits to keep the oscillator on the desired frequency. Transistor Q1 is used as an active filter to reduce the noise on the oscillator supply voltage.
Channel Programming The channel information is stored in Flash memory and can be programmed via the Ethernet, USB or RS232 interface using a Host PC and RF Technology’s Service Kit software. Channel Selection Channel can be select by Service Kit or front panel buttons (if enabled). Physical Configuration The transceiver is designed to fit in a 19-inch rack mounted frame. The installed height is 4 RU (178 mm) and the depth 350 mm. The transceiver is 63.5 mm.
RF Exposure. This transmitter exciter constitutes a RF transmitting system that both the FCC and Industry Canada has established RF exposure requirements for. In order to comply with the RF exposure requirements of both countries the transmitting antenna must maintain a specific physical separation from all persons. The antennas for this device usually are mounted on outdoor permanent structures and the installer must see that the separation distance be maintained.
