Soli-State Radio Module GKP-2781 Solid-State Radio Module GKP-2781 Users Manual 2018 November PREFACE BEFORE OPERATION GRAPHIC INDICATION Various graphic indications are included in this manual and are shown on the equipment so that it can be operated safely and correctly and prevent any danger to the operator and/or to other persons and any damage to property during operation. Such indications and their meanings are as follows. Understand them before reading this manual. WARNING This indication is shown where it indicates that any person will be in danger of seriously injured or loss of life if this indication is neglected and the equipment are not operated correctly. CAUTION This indication is shown where it indicates that any person will be in danger of seriously injured or loss of life if this indication is neglected and the equipment are not operated correctly. EXAMPLES OF GRAPHIC INDICATION Soli-State Radio Module GKP-2781 PRECAUTIONS WARNING Do not touch Transmitter/ Receiver. Transmitter/ Receiver is a moving part, and it may cause injury. For internal inspection and repair work of equipment components, consult with our branch office, branch shop, sales office, or our distributor in your district. This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter. This device complies with Part 90 of the FCC rules. 2 Soli-State Radio Module GKP-2781 Table of content PREFACE .......................................................................................................................................................................................... 1 BEFORE OPERATION ............................................................................................................................................................ 1 PRECAUTIONS ....................................................................................................................................................................... 2 1.General ........................................................................................................................................................................................... 1 2. Specifications ............................................................................................................................................................................. 2 2.1 Interface ................................................................................................................................................................................ 2 2.2 Performance ........................................................................................................................................................................ 2 3 Soli-State Radio Module GKP-2781 1.General GKP-2781 is sloid-state radio module of compact weather radar. It is composed with STALO, Signal Processor, and Transmitter/Receiver Module. The source oscillation signal is generated in Signal Processor. Transmitter/Receiver up-convert the source oscillation to the transmission frequency by mixing it with the local signals generated in STALO. Since this is solid-state type, it does not require either pre-heat or tune-up. Also, it is possible to keep stable transmission and low power consumption for longer period of time. Details of the components are shown in the next page. STALO 1st Local Signal DCN-DC922-102IR 2nd Local Signal Signal Processor CMJ-569 Source Oscillation Signal Transmitter
/Receiver CMN-827 Transmission Signal To Antenna Block Diagram of transmission 1/2 Soli-State Radio Module GKP-2781 2. Specifications 2.1 Interface STALO DCN-DC922-102IR RF OU T1 REF OUT1 Signal Processor CMJ-569 J1 TX OUT Transmitter
/Receiver CMN-827 J6 1st LO IN J7 2nd LO IN J2 TX OUT To Antenna J1 TX IF STALO No Port Name Detail Spec. Remarks Signal Processor J1 RF OUT1 REF OUT1 1st Local Signal Output 2nd Local Signal Output TX OUT IF Signal Output Transmitter/Receiver J1 J2 J6 J7 TX IF TX OUT 1st LO IN 2nd LO IN TX IF Signal Input TX RF Signal Input 1stLO Input 2ndLO Input 2.2 Performance SMAJ SMAJ SMAJ SMAJ SMAJ SMAJ SMAJ Item Specification Remarks Transmission frequency 9700 MHz, 9800 MHz filter has a bandwidth as low as a The transmission RF bandpass little lower than 300MHz No 1 2 3 Transmission /
Receive IF frequency 60MHz Duty 4 OBW 10% or less 8MHz or less 5 6 7 Transmit RF output 130 W (Peak) Operating
-20+50 temperature range Storage temperature
-30+60 range 8 Power Supply DC12V: STALO, Signal Processor DC+24V: Transmitter/Receiver 2/2