SD-174 Data Radio User Instruction Manual
FCC RF Exposure Compliance Requirements The Federal Communications Commission (FCC), with its action in General Docket 93-62, November 7, 1997, has adopted a safety standard for human exposure to Radio Frequency (RF) electromagnetic energy emitted by FCC regulated equipment. Maxon subscribes to the same safety standard for the use of its products. Proper operation of this radio will result in user exposure far below the Occupational Safety and Health Act (OSHA) and Federal Communications Commission limits.
Specifications GENERAL Equipment Type ……………………………………………………… Data radio Performance Specifications…………………………………………TIA / EIA-603 & AS-4295 Band …………………………………………………………………… UHF Channel Spacings …………………………………………………… 25 kHz, 12.5 kHz programmable RF Output Power …………………………………………………… 5 watt / 1 watt programmable Modulation Type …………………………………………………… F2D, F3E Intermediate Frequency …………………………………………… 45.
TRANSMITTER Specification Carrier Power: ………………………………………………………… Nom. Max. Min. High …………………………………………………………5W < 6W > 4.5W Low …………………………………………………………1W < 1.5W > 0.8W Sustained Transmission …………………………………………… Nominal conditions Time : 5 10 30 Sec. Power: >90% >85% >80% Frequency Error ……………………………………………………… ±5.0 ppm Extreme condition for UHF Frequency Deviation: 25 kHz Channel Spacing…………………………………………… Peak ±5.0, Min. ±3.8 12.5 kHz Channel Spacing………………………………………… Peak ±2.5, Min. ±1.
RECEIVER Specification Sensitivity (12dB Sinad) …………………………………………… Standard B.W < -118 dBm, Narrow B.W <-117 dBm @ Nom. Condition Standard B.W < -115 dBm, Narrow B.W <-114 dBm @ Extreme Condition Amplitude Characteristic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±3 dB Adjacent Channel Selectivity: 25 kHz Channel Spacing …………………………………………… > 70 dB @ Nom., > 60 dB @ Extreme Condition 12.5 kHz Channel Spacing ………………………………………… > 60 dB @ Nom.
Unpacking information Remove and carefully inspect the contents of your package(s) for the following items: Radio Fused power cord User manual If any items are missing, please contact the dealer from which you purchased the radios, or contact us at phone number 1816-241-8500 or Fax. 1-816-241-5713. SD-174 Features • Synthesized Operation with 16 channel capability • 1 / 5 Watt programmable output power • Programmable 12.
Description of radio components Antenna connector DB-15 connector Power connector GPS Antenna connector (option) LED (Busy / Tx indicator) Exterior View 2 1 CON407 5 7 RV401 maxon RV402 RV403 6 SW401 Digital Board 4 3 Antenna installation Fasten the antenna to the radio by turning the antenna cable clockwise into the receptacle on left of radio when looking at front of radio.
Powering the data radio Your data radio accepts many sources of DC power to permit more versatile use. This radio operates from 9V to 18V DC and standard voltage for test is 12V DC. Connecting the data radio to DC power Connect DC power plug of power cable to radio’s DC IN power connector and then fasten power plug to the radio by turning the ring clockwise.
SD-170 Series Operation Channel select / SCAN Your radio’s channel can be selected by inner DIP-S/W or serial command inputted from external control system. To change channel by inner DIP-S/W ( ), you should open the upper cover and then look for the DIP-S/W( ) on the digital board of the bottom cover. Once located change the DIP-S/W to select wanted channel according to channel dip switch chart. To use a serial command for channel selection, it should be inputted by external equipment or device(ex.
Scan modes Scanning is a dealer programmable feature that allows you to monitor a number of channels. Your dealer will help you define a scanning mode and your channel “scan list” Channel scan Once the scan list has been established, initiate scan by serial commands. If a conversation is detected on any of the channels in the scan list, the radio will stop on that channel and you will be able to hear the conversation.
Channel dip switch chart CHANNEL NO.
Data Protocol Protocol for input Serial command Protocol of data transmission from external equipment or device (: PC) to radio : External equipment or device Radio Input serial command Response Receive response Protocol for output data Protocol of data transmission from radio to external equipment or device (: PC) : External equipment or device Radio Output Data (with command) Receive Data Output Data (with command) Receive Data Serial Commands Transmit Command & data Mode 1. 2. 3.
0x66 From Radio To Pc 0x65 Error Message 4. Control of GPS Power 0x63 GPS mode 5. 0x6a Control of GPS Data Modem test mode 6. Modem alignment mode GMSK 0x75 0x7a 0x7c FFSK 0x7e 0x00 : 1 Channel 0x01 : 2 Channel 0x02 : 3 Channel 0x66 + 0x00 0x66 + 0x01 *Only for Unmute Channel, Correct Call Channel 0x0f : 16 Channel It occurs when Scan Delete command comes except for Busy/Correct Call It occurs when PTT key is pushed except for Busy/Correct Call.
Status indicators and audible alert tones Your SD-170 series data radio has a sophisticated microprocessor control which provides a range of LED displays. LED displays operation mode, current status of radio, warning, and etc.
DB 15 PIN descriptions with input/output level D-Type Pin No. 1 Function Description Data modulation IN (Tx Mod) Signal is directly injected to MOD through data Analog signal low pass filter without pre-emphasis. 1KHz audio at 60% peak system deviation input level = 100 to 120mVrms Discriminator audio from the SD-170. This is Analog signal the unprocessed AF signal prior to tone 1KHz audio at 60% filtering and de-emphasis.
13 GPS data input 14 DGPS data input 15 GPS data output TTL level Data input for initial setting of GPS module. It follows NMEA 0183 format and uses asynchronous data format. Data input for DGPS Correction of GPS TTL level module. It follows NMEA 0183 format and uses asynchronous data format. Position data output from the GPS module. It TTL level follows NMEA 0183 format and uses asynchronous data format.
Modem option for data communication DESCRIPTION The ACC-513 and ACC-514 are internal option-modems, which are applied to the SD-170 series to increase capability for data applications. The goal of an internal modem is to improve the efficiency for data transmission and provide maximum flexibility for user applications. The most obvious method of increasing the data efficiency is to maximize the data signaling speed in the limited channel bandwidth.
Channel Space Narrow (12.5KHz) Standard (25KHz) DTE Baud Rate 4800 4800 9600 Modem Baud Rate 4800 4800 9600 Table 2. Available Baud rate for GMSK modem Transmission GPS Data through Modem The SD-170 supports GPS data handling. That may help your implementation for a system related to GPS. If it is not enough for your application, received position data from the GPS module placed in an SD-170 can be reprocessed by your own application.
Option board pin-out chart FFSK Modem Option board Connector Pin No. No. Function Description 1 VCC 6V to 12V Power Input 2 GND Ground 3 PTT Signal from the digital board to transmit data key the SD170 transmitter 4 TXD_EN It ensures that the radio has stabilized in transmission before the data is processed for modulation. 5 TX_END To finish transmission, it indicates memory buffer of Master MCU of digital board is empty.
GMSK Modem Option board Connector Pin No. No. Function Description 1 VCC 6V to 12V Power Input 2 GND Ground 3 PTT Signal from the digital board to enable transmitter circuit of modem board. 4 TXD_EN It ensures that the radio has stabilized in transmission before the data is processed for modulation. 5 TX_END To finish transmission, it indicates memory buffer of Master MCU of digital board is empty.
GPS Option board Pin Function No. Description Input/ Output 1 VCC 6V to 12V Power Input I/P 2 VBAT Backup Power Input (3.
