Eclipse2 UHF / VHF / 800MHz Base Station Technical Manual Publication Reference – TPR-03XX920015 Issue 1.5 – July 2009.
Revisions Version Description Publication Date 1.0 1.5 Initial release March 9 2008 2009 List of Associated Publications Document Number Description TPR-0308920019 TPR-0309920010 IP Commander User Manual Eclipse2 Application Guide 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 REVISIONS ...........................................................................................................2 CONTENTS ...........................................................................................................3 INTRODUCTION .....................................................................................................6 FEATURES ...........................................................................................................6 SPECIFICATIONS .................
Description ................................................................................................................................ 15 Channel Capacity ........................................................................................................................... 15 Sub Audio Signaling ....................................................................................................................... 15 Channel Programming..............................................................
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 Software Defined Radio (SDR) Base Station designed for Conventional Analogue FM and Conventional APCO P25 modes of operation. Utilising a DSP and RISC platform The base station uses a modular design concept, which provides extensive flexibility for users, e.g. stand alone transmitter/receiver, cross-band repeater operation, etc. Utilizing DSP technology and the built-in Ethernet port, all operating parameters can be monitored and controlled remotely.
Power Supply: Current Drain: Operating temperature: +13.8VDC +/-10% (Negative Ground) 2A Max with 5 Watt TX output power 750mA Max with TX OFF -30°C to +60°C Receiver Frequency Spread: Frequency Stability: Frequency Step: IF frequency: Sensitivity: Selectivity: Spurious Rejection: Intermodulation: Modulation acceptance: Noise squelch: Carrier squelch: Audio Response: Audio Distortion: Line output level: VHF 38MHz UHF 10MHz +/-1ppm (-30°C to +60°C) 1Hz 45 MHz 12dB SINAD @ -119dBm (0.
Figure1: Eclipse2 Transceiver Front panel Buttons: Status Test Up Down Left Right Reset – – – – – – – Press this button to listen to the voice report Press this button to key up the exciter (if front panel test key enabled) Press this button to increase the speaker volume Press this button to decrease the speaker volume Press this button to channel change down Press this button to channel change up The reset switch mounted inside base station, used for reset the Reciter without power cycle, use a small p
21 Monitor speaker output 9 22 10 23 11 24 12 System serial bus, Data in System serial bus, CS0 System serial bus, CS1 T/R relay output External squelch input Spare GPIO input Spare GPIO output Output: unbalanced 8 ohm 300 to 3000Hz, 3 Watt maximum Input: +3.3V TTL logic Output: +3.3V TTL logic Output: +3.3V TTL logic Output: open collector, Imax = 100mA Input: Low active (Vin ≤ +2.5V) Input: Low active level ≤ +2.
RS232 and external reference clock (optional) The female D shell, 9-pin connector is an optional interface to the transceiver. RS232 and external reference clock (EXT_REF) signals share this connector. The pins of the connector are described in table 3. Pin No.
Technical Description The transceiver consists of three sub assemblies: Control Board, Interface board, and RF modules. Control Board The Control Board is a multi-layer, double side component mounted PCB assembly. The most important parts of the base station, such as CPU, DSP and digital IF receiver, are embedded in this master board, two 40-pin connectors on this board allows user inserting/removing it from the interface (main) board.
(down to 0Hz DC) signals, the DC offset of input signal is shifted by the bias circuit which is controlled by the RISC processor to give the maximum dynamic range for the ADC. The CODEC has two identical channels, the output of channel 1 is used for line output. PCM signal from the DSP is decoded to analog audio, and amplified, buffered by op-amplifier U10, coupling through the line matching transformer (T2), and sent to the RJ45 E/M Line connector and the D25 system connector.
Header (H4) is used only for emergency system booting purpose, do not assert jumper into this header. Clock generator the 12.8MHz TCXO (X1) output is buffered (by U26) and divided by 4 (U29) to provides PLL reference frequency for exciter and receiver. The frequency doubler double 12.8MHz frequency to 25.6MHz to provide system clock for digital IF receiver. Voltage regulators There are nine voltage sources generated by the voltage regulator VTX VRX D3V3 A3V +12V +5V +1V8 -20V -12V – – – – – – – – – +12.
Amplifiers (U1, U2) increase the VCO output to a sufficient level to drive the power amplifier (U3). The output power level of the PA is controlled by RISC processor via bias pin of U3. The directional coupler (D3, D4) detects the forward and reverse power components, the detected voltages are then amplified by U7 and U8 to provide proportional dc levels to the RISC processor. The output from U3 is further filtered by the low pass filter to reduce higher order harmonics.
Each RX module has an EEPROM for storing the individual module information such as, TX module serial number, model name, frequency range, calibration data etc. This is allows user to simply replace the RX module in the transceiver without redo the alignment and calibration. The data is transferred between EEPROM and RISC processor via the serial bus.
Connectors Antenna Connector Receiver: Exciter: Type N 50ohm Female Mounted on the module rear panel SMA or Optional N Type 50ohm Female Mounted on the module rear panel.
RF Exposure This amplifier and associated exciter constitute 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.
Warning Statement NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
