FDK_Multi-700AX_user.pdf

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1、 FDK INSTRUCTION MANUAL MULTI-700AX 2m FM 1-25W PLL TRANSCEIVER Fukuyama Fukuyama ELECTRONICS CO., LTd. Downloaded by? RadioAmateur.EU GENERAL INFORMATION The Fukuyama Electronics Co., Ltd. (FDK) Model MULTI-700AX mobile and base station 2 meter transceiver is reliable and MULTI functionable amateur

2、 radio equipment. It is designed and assembled with selected components to give even characteristics and is all solid-state. In normal use, and with proper care it will gve long and trouble-free service. Communication range depends upon the usual factors such as antenna in use, operating location, R

3、F output power level and band conditions. Read manual carefully before taking the equipment into use. TABLE CONTENTS GENERAL INFORMATION. 1 OUTSTANDING FEATURES . 3 SPECIFICATIONS. . 4 CONTROLS AND LAYOUD. 5 TOP VIEW WITH COVER REMOVED. 6 BOTTOM VIEW WITH COVER REMOVED. 7 NAME OF FUNCTION . 8 GENERA

4、L OPERATION. . 10 REMOVAL OF TOP/BOTTOM COVERS AND FRONT/CHASSIS PANEL 10 OFFSET FREQUENCY PROGRAM. 11 TONE BURST / SQUELCH INSTALLATION . 12 BLOCK DIAGRAM . 18 SCHEMATIC DIAGRAM . 21 OUTSTANDING FEATURES Desirable Synthesizer Selection Plus Free One Memory Function: Full an 800 channel from 144.000

5、MHz to 147.995MHz each 5KHz step with thece rotary and one push switches free selection frequency. Also desired one channel free memorable frequency from entire the range. Dependable R.F Output Power Module: Selectable an R.F Power output from 1 watt to upto 25 watts variable Power control type, emp

6、loyed high efficient hy-brid Power module with dependable performance and stability. Much Improved Cross-modulation and Blocking: Employed dual stage an R.F helical-resonator section with dual-gate MOSFET in R.F top circuit. Desirable Offset Function: The transmit frequency provided at +/-600KHz shi

7、ft frequency before shipping factory and set an above frequency also available. Programmable offset frequency appropriated for your local repeater facility. Built-in Automatic Protection: In the event of accidental high VSWR open or short circuit antenna output, there is automatic power module prote

8、ction. Employed Power Supply Noise Filter: The supply line from battery to the equipment is a common source of high noise level as a conductor of ignition and alternator interference. This is eliminated by an effective line filter associated with the Power unit. SPECIFICATIONS GENERAL; Frequency ran

9、ge: 144.000 - 147.995MHz plus 143.950MHz Channel capacity: 800 channels plus 143.950MHz, 1 channel Mode: F3 (16F3) Antenna impedance: 50 - 52 ohm (unbalanced) Supply voltage: 11 - 15 volts D.C (13.8V nominal) Negative GND. Consumption power: 6.0 amps at 25W transmit, 1.8 amps at 1W transmit, 1.7 amp

10、s at Audio max. receive, 1.0 amp at squelched receive. Temperature range: -10C to +60C degrees Frequency tolerance: Within +/-0.002% ref, at 25C. Dimensions: 162mm W x 70.5mm H x 260mm D. Weight: Approx. 2.3 Kg TRANSMITTER; RF output power: 1 - 25 watts (continuous) Modulation: Variable reactance fr

11、equency Frequency deviation: +/-5KHz max. (factory preset) Spurious and Harmonics: Less than 65 dB Offset frequency: +/-600KHz and programmable frequency upto 1.6MHz Optional tone function: Burst: 1,750Hz +/-1Hz, approx. 1 second duration Squelch: Standard EIA frequency continuous Microphone sensiti

12、vity: -43 dBm dynamic, 600 ohm with PTT function switch RECEIVER; Receiving method: Double superheterodyne Sensitivity: Less than 0.4mV at 20 dB N.Q. Squelch sensitivity: -5 dBu (threashold) Intermediate frequency: 1st 16.9MHz 2nd 455 KHz Spurious Microphone with connector . . . . . . . . . . . . .

13、. . . . . . . . . . . . . . . . . . . 1 Black/Red power cord with plug . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Mounting bracket with screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Desk top angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14、 . . . . . . 1 Speaker plug 1) VOL/SQ, BCD ROTARY SWITCH, PWR CONTROL and MHz SELECTOR switches. If further access to Chassis is required, first remove the two Philips (metalized) top and bottom screws and the two black screws at both end mid-panel height. Remove slow1y with great care and it may al

15、so be necessary to disconnect the ribbon wires from their channel switching board connectors. (Straight slow pull from connectors. DO NOT BEND OR FOLD THESE WIRES.) BOTTOM COVE R: When removed, this will give access to; WARNING 1) Main PLL board, with PLL local crystal and Main receiver board with H

16、elical-resonator and optional Tone unit installation. 2) Power protect diode with Noise eliminator power board. Remove the four black screws, slide way back to rear panel, and slightly lift. It may also be necessary to remove speaker connector leads from the receiver board. THE ABOVE PANELS AND COVE

17、RS SHOULD BE REMOVED IF THE OWNER HAS THE NECESSARY TECHNICAL ABILITY TO CARRY OUT THE REQUIRED ADJUSTMENT ONLY. SUITABLE TEST EQUIPMENT AND TOOLS MUST BE AVAILABLE. OTHERW1SE REFER TO DEALER FOR SERVICE OR MAINTENANCE. If memory channel operation, just depress the M.R (Memory Recall) push switch, a

18、lso operates memory channel to be offset function if switched. connector. Remove the four black screws. Slide baclt and lift to clear. quency program circuit. 2) Transmitter board. 3) Part of the Transmitter power board and Accessory When removed, this will give access to; 1) Channel switching selec

19、tor board with OFFSET fre OFFSET FREQUENCY PROGRAM The offset frequency has been programmed +/-600KHz before shipping factory. If use your local repeater access frequency, modification method under above following. NOTE: Modification diodes are not provided with the transceiver, could be use any kin

20、d silicon type diode (example; 1N-914, 1S-1588 etc.). MODI FICATION: 1) Remove the an upper cover, upper side right hand of the channel switching board, (see above illust.). Programmable frequency each individual, may not necessary cut the pattern and remove diode, if required keep the - 600KHz posi

21、tion left side from the dot line. 2) Further carefully remove the 3 terminal regulator I.C mounted plastic screw from chassis, (should be use fitted with the Philips type screw driver) and four edges of screws from channel switching board. 3) The channel switching board (program side) turn-up only 4

22、5 degrees from chassis surface (if necessary remove bottom side PLL output harness). 1. +/-600KHz (before modify) Cut the pattern and remove a diode. CUT REMOVE DIODES 2. +/-700KHz program 3. +/-1,000KHz program 4. +/-1,200KHz program 5. +/-1,600KHz program Downloaded by? RadioAmateur.EU TONE SQUELC

23、H/BURST INSTALLATION This unit provide Tone Squelch a capability to exclude unwanted transmissions by allowing the receiver to respond only to an appropriate tone coded signal system or Tone Burst for an open the repeater station facility system for one of each unit are available to installation. BO

24、TTOM SIDE RECEIVER BOARD For both unit installation space at speaker side of bottom cover, an optional installation and wiring detail figure under shown above. NOTE: Tone ON/OFF Switching Tone Audio The Tone Squelch unit may also be available to use a TS-1 made by communication specialists co., wiri

25、ng connection see above instruction sheet and above pin wiring schematic. Downloaded by? RadioAmateur.EU Downloaded by? RadioAmateur.EU Downloaded by? RadioAmateur.EU Downloaded by? RadioAmateur.EU Downloaded by? RadioAmateur.EU Downloaded by? RadioAmateur.EU Downloaded by? RadioAmateur.EU FDK FUKUYAMA electronics TOKYO, JAPAN. Downloaded by? RadioAmateur.EU