ELECTRONIC SYSTEMS LTD NOTICE The information in this document has been carefully checked and is considered reliable. No responsibility is assumed for inaccuracies. KP ELECTRONIC SYSTEMS LTD. reserves the right to introduce changes in its products to improve reliability, function or design. KP ELECTRONIC SYSTEMS LTD.
K ELECTRONIC SYSTEMS LTD 1 1 GENE 2.1 Fup 22 APPEARANCE I THEORY OF OPERATION 3.1 RECEIVE Trans M LTH ir Arterial | 0 Harmonies Fi 32.3 Power Amplifier. 3.3 SYNTH 331 MARISOL 3.3.2 TXO2258 rrr! Bookmark not defined Taiiufivr Amplifier Rui Buffer Amplifier. Feedback Buffer Amplifies 3.4 row SOFTWARE DESCRIPTION German mess bl 4.1 Function 2 3 PROGRAMMABLE PARA TROUBLESHOOTING AND 5 & 54 Teethe Screen 12 52 GuelO™ Mummery PROGRAM 3 3.24 Operating Instructions.
KK ELECTRONIC SYSTEMS LTD ~ 1 Introduction This document is intended for experienced technical personnel, and it explains the sherry of operation, software and programming guide description, testing, adjusting, and tuning procedures Tor the BER 100™ transceiver fn manufacturing and laboratory conditions. It contains the following chapters: «Introduction # General Description «Theory of Operation eo Software Description « Programming Guide # Megalomaniac Testing Se lap DE = Testing.
i ELECTRONIC SYSTEMS LTD ® Jd: A L-pin contact connector connects the following: Connector Pin GND RS232 OU 4 prT ) 5 AUDIO IN . DIAGNOSTIC MODE [7 AUDIOLOGY ? Optional e J30 A Retype Ninepins rear panel connector connects the following: Connector Pin Pry i wee.
31 a1 342 KP Lesion The BSRI108 transceiver consists of five major blogs: & Receiver » Transmitter e Synthesizer » Microcomputer + Poe The following is a description of operation for the five major blocks and their modules, Receiver The Recent cof tour ms VHF Front-end Circuits Double-Balanced Mixer «45 MHz IF Section and Back-end IF 1C with RES] meter and channel x fi VHF Front-end Circuits Tre VHF Front-end circuits consists of tree blocks of veniremen: Pr-selector, RE amplifier, and Post-selector ter.
ad I Lak 3.2 KK ELECTRONIC SYSTEMS LTD 45 MHz IF Section and Backed WF I The Intermediate Frequency (IF) Section consists of 45 Mile IF and back-end IF IC Blocks. The first TO signal and RF signal mux with the FF frequency of 43 MHz and then enter the IF portion of the radio. The: signal passes through a dip lexer network (DN) 0 optimize intercept point performance by not allowing any signals, especially Local oscillator om harmonies, (0 te reflected back into the mixer.
3.23 3.3 ELECTRONIC SYSTEMS LTD The Antenna Switch serenity consists of two PIN diodes and lumped elements to simulate the Wid section. When 134 and £32 are both ON, transmit mode is active, When [¥and 12 are both OFF, receive mode is active. To activate receive isolation while transmitting, use 32 as a short-circuit termination for the 3/4 section. PIN diode DMUI01F provides bi isolation, low loss, and low distortion, and cap handle over 1O0W of transmitter power in VHF and UHE bands.