Hytera Communications MD78XIU1 Digital Mobile Radio User Manual

Hytera Communications Corporation Limited Digital Mobile Radio Users Manual

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MD78XIU1 User Manual

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UHF1 (400–470 MHz) Contents i UHF1 (400–470 MHz)

Contents UHF1 (400–470 MHz) ii Contents 1. Product Controls .................................................................................................................................. 1 2. Disassembly and Reassembly ............................................................................................................ 3 3. Exploded View and Packing Guide .................................................................................................... 5 4. Specifications and Blind Spot ............................................................................................................ 8 5. Interface Definition ............................................................................................................................. 12 6. Tuning Description ............................................................................................................................. 24

UHF1 (400–470 MHz) 80 1. Product Controls Front Panel No. Part Name No. Part Name 1 Volume Control/Group Call Selector Knob 8 Up Key 2 LED Indicator 9 Down Key 3 LCD Display 10 Speaker 4 OK/Menu Key 11 Redial/Answer/Call Key 5 Back/Group Call Management Key 12 Programmable Keys 6 Dial-back/End/Home Screen Key 13 Microphone Connector 7 Power On/Off Key 14 Microphone Installation Index Note The above-mentioned product control is based on the mobile radio in the trunking mode. In the conventional mode, No. 1 serves as Volume Control / Channel Selector Knob, and No. 6 & No.11 serve as the Programmable Keys.

UHF1 (400–470 MHz) 2 Rear Panel No. Part Name No. Part Name 1 RF Antenna Connector 3 Accessory Connector 2 Power Inlet 4 GPS Antenna Connector Note The GPS antenna interface is only available for MD78XG.

UHF1 (400–470 MHz) 80 2. Disassembly and Reassembly 2.1 Disassembling the Radio Step 1 Turn off the radio and remove the power cord, and loosen the two screws to remove the radio. Step 2 Remove the antenna. Step 3 Loosen the three screws to remove the front panel. Then remove the FFC. Step 4 Detach the volume control knob and loosen the four screws. Then remove the PCB from the control panel. Step 5 Undo the clips on both sides of the radio, and then remove the rear cover.

UHF1 (400–470 MHz) 4 Step 6 Loosen the eleven screws to remove the upper shield cover. Step 7 Loosen the screw fixing the antenna connector and two screws fixing the PA module. Then take the PCB out. 2.2 Reassembling the Radio To reassemble the radio, perform the above steps in a reverse way.

UHF1 (400–470 MHz) 80 3. Exploded View and Packing Guide 3.1 Exploded View Part list: No. Part No. Description Qty. No. Part No. Description Qty. 1 6300109000000 Aluminum chassis 1 27 6100334000000 O-ring for encoder switch 1 2 7500358000000 Heat sink pad 1 28 4399030000020 Rotary switch 1 3 6100492101000 Waterproof ring for front case 1 29 41078001000J0 PCB for control panel 1 4 4210090000200 Signal cable 1 30 6100533101000 Waterproof ring for aluminum chassis 1 5 5208010100010 Connector (male) 1 31 6300126000000 Upper cover of the aluminum chassis 1 6 6001079000000 Light-guide plate for keys 1 32 7103015000000 Machine screw 11 7 7300048000000 Metal dome 1 33 6001080000000 Plastic upper cover 1 8 6100408001000 Waterproof ring for microphone jack 1 34 6100496000000 Conductive silicone rubber for main board 1 9 6100488000000 P+R front panel keys 1 35 7103008000400 Machine screw 2 10 6201893000000 Speaker fixing sheet 1 36 7500272000000 Heat sink pad 2 11 7102606021000 Self-tapping screw 6 37 / Semi-finished PA with heat sink pad 1

UHF1 (400–470 MHz) 80 3.2 Packing Guide

UHF1 (400–470 MHz) 8 4. Specifications and Blind Spot 4.1 Specifications General Frequency Range 400–470 MHz Channel Capacity 1024 Group Capacity 64 (each with a maximum of 16 channels) Channel Spacing 12.5 kHz / 25 kHz Operating Voltage 13.6V±15% DC Current Drain  Standby: <0.6 A  Receive: <2.0 A  Transmit: 5 W: <5 A; 25 W: <8 A, 45 W: <12 A Frequency Stability ±2.5 ppm Antenna Impedance 50 Ω Dimensions (H×W×D) 60 mm × 174 mm × 200 mm (2.4 inch × 6.9 inch × 7.9 inch) Weight 1.7 kg (3.75 lbs) LCD Display 220*176 pixels, 262000 colors, 2.0-inch, 4 rows Transmitter Power Output  Low: 1–25 W  High: 1–45 W Conducted/Radiated Emission  -36 dBm <1 GHz  -30 dBm >1 GHz FM Modulation  10K1F3E@12.5 kHz  15K1F3E@25 kHz 4FSK Digital Modulation  12.5 kHz (data only): 7K70FXD Modulation Limit  ±2.5 kHz@12.5 kHz  ±5.0 kHz@25 kHz

UHF1 (400–470 MHz) 80 FM Hum and Noise  40 dB@12.5 kHz  45 dB@25 kHz Adjacent Channel Power  60 dB@12.5 kHz  70 dB@25 kHz Audio Response +1 dB to -3 dB Audio Distortion ≤3% Digital Vocoder Type AMBE++ or SELP Digital Protocol ETSI-TS102 361-1, -2, -3 Receiver Sensitivity Analog:  0.3 μV (12 dB SINAD)  0.22 μV (Typical) (12 dB SINAD)  0.4 μV (20 dB SINAD) Digital:  0.3 μV /BER5% Adjacent Channel Selectivity  TIA-603: 65 dB@12.5 kHz/75 dB@25 kHz  ETSI: 60 dB@12.5 kHz/75 dB@25 kHz Intermodulation  TIA-603: 75 dB@12.5/25 kHz  ETSI: 70 dB@12.5/25 kHz Spurious Response Rejection  TIA-603: 75 dB@12.5/25 kHz  ETSI: 70 dB@12.5/25 kHz Blocking  TIA-603: 90 dB  ETSI: 84 dB Hum and Noise  40 dB@12.5 kHz  45 dB@25 kHz Rated Audio Power  Internal (20 Ω load): 3 W  External (8 Ω load): 7.5 W Max. Audio Power  Internal (20 Ω load): 8 W

UHF1 (400–470 MHz) 10  External (8 Ω load): 20 W Rated Audio Distortion ≤ 3% Audio Response +1 dB to -3 dB Conducted Spurious Emission < -57 dBm Environment Operating Temperature -30℃ to +60℃ Storage Temperature -40℃ to +85℃ ESD IEC 61000-4-2 (level4) ±8 kV (contact) ±15 kV (air) American Military Standard MIL-STD-810 C/D/E/F/G Dust & Water Protection IP54 Humidity Per MIL-STD-810 C/D/E/F/G Standards Shock and Vibration Per MIL-STD-810 C/D/E/F/G Standards GPS (for MD780XG only) Accuracy specs are for long-term tracking (95th percentile values>5 satellites visible at a nominal -130dBm signal strength). TTFF (Time To First Fix) Cold Start < 60s TTFF (Time To First Fix) Hot Start <10s Horizontal Accuracy <10 m Note All Specifications are tested according to applicable standards, and subject to change without notice due to continuous development.

UHF1 (400–470 MHz) 80 4.2 Blind Spot No. Blind Spot (MHz) No. Blind Spot (MHz) 1 403.2 5 414 2 422.4 6 432 3 441.6 7 450 4 460.8 8 468

UHF1 (400–470 MHz) 12 5. Interface Definition 5.1 10-Pin Connector The 10-pin connector on the front panel is used for audio accessories or data cable connection. The definition of each pin is described as below. Pin No. Name Type Signal Electrical Performance Description 1 Accessory identification interface 1 Digital input 3.3 V CMOS Pin 1 and Pin 10 (accessory identifier interface 2) compose an accessory identification matrix. Please refer to the “10-pin Accessory Identification Matrix Table” below for detailed function definitions. 2 PTT input Digital input 3.3 V CMOS PTT input for the palm microphone, which is valid at low level. 3 External audio output Analog output Load impedance >1 kΩ Vrms=600mV±10%@1 kHz 60% system max. deviation Accessory audio output. When “Mic Audio Output” is selected via CPS, this pin will output the received audio signal. 4 USB_D- USB data cable- USB data When this pin is used for USB function, USB function of DB26 will be disabled. 5 GND Ground cable / / 6 USB_VBUS USB power supply Power supply: 5 V; current limiting: 500 mA This pin provides power supply to the USB accessory. It outputs a 5 V voltage when accessory identification code is 00|01|10, and outputs low level when the code is 11.

UHF1 (400–470 MHz) 80 Pin No. Name Type Signal Electrical Performance Description 7 Mic input Analog input Modulation sensitivity Vrms=80mV±10%@1kHz 60%system max. deviation Mic input for palm microphone 8 USB_D+ USB data cable+ USB data When this pin is used for USB function, USB function of DB26 will be disabled. 9 HOOK Digital input 3.3V CMOS High level by default; valid at low level. HOOK and MONITOR functions: Press this key, the level changes from high to low. When palm microphone is detected or press the key of the palm microphone, this pin is used for HOOK function; when desktop microphone is detected, this pin is used for MONITOR function. 10 Accessory identification interface 2 Digital input 3.3V CMOS Pin 1 and Pin 10 (accessory identifier interface 1) compose an accessory identification matrix. Please refer to the “10-pin Accessory Identification Matrix Table” below for detailed function definitions. 10-pin Accessory Identification Matrix Table (composed of Pin 1 and Pin 10): Pin 1 Pin 10 Radio Status Low level Low level Reserved Low level High level The mobile radio is in USB master mode or connected to a USB smart accessory (such as palm microphone with keypad). High level Low level The mobile radio is connected to an external speaker (including desktop microphone with earpiece).

UHF1 (400–470 MHz) 14 Pin 1 Pin 10 Radio Status High level High level The mobile radio is in USB slave mode, or it is not connected to any accessory, or it is connected to a palm microphone without keypad. 5.2 DB26 Accessory Interface DB26 accessory interface, namely the 26-pin further development interface on the rear panel, is mainly used for accessory connection of mobile radio, or compatibility with other interfaces. Users can further develop the radio via this interface. The figure and definition of each pin is as follows. Pin No. Name Type Signal Electrical Performance Description 1 Vbus USB power supply Power output Power supply: +5V; current limiting: 500 mA Pin 1 and Pin 10 (accessory identification interface 2) compose an accessory identification matrix. This pin outputs a 5 V voltage when accessory identification code is 00|01|10, and outputs low level when the code is 11. 2 Ground Power supply (grounding) / / 3 GP5_3 (Chan_Act) GPIO 5V TTL GPIO. Programmable via CPS. 4 SWB+ Power output Power supply :13.2V±15%; output current ≤1 A Power output: 13.2 V; output current: ≤1 A

UHF1 (400–470 MHz) 80 Pin No. Name Type Signal Electrical Performance Description 5 External Alarm Analog voltage output 13 V alarm output Programmable output pin (“External Horn & Lights” feature by default, programmable via CPS). 6 Power Ground Power supply (grounding) / / 7 TX Audio Analog signal input Vrms=80 mV±10%@1 kHz 60% system max. deviation This pin is used for signal input of external MIC. The audio path is valid when the external Mic PTT is held down. 8 RX Audio Analog signal output Load impedance>1kΩ Vrms=300 mV±10%@1 kHz 60% system max. deviation Default output is 300 mV. The output signal amplitude can be changed by modifying the “Analog RX Gain” value via CPS. 9 SPK- Analog output It forms differential output together with SPK+. Max power output: 10 W(R=8 Ω) External speaker output- 10 D+ USB data cable+ USB data USB data cable+ 11 USB_GROUND Ground cable / / 12 GP5_2 (Monitor) GPIO 5V TTL GPIO. Programmable via CPS; Monitor feature by default. 13 ACC_IO2 Digital input 5V TTL Accessory identification interface; high level by default. This pin and Pin 15 (ACC_IO3) can compose three accessory identification statuses. Please refer to the “DB26 Accessory Identification

UHF1 (400–470 MHz) 16 Pin No. Name Type Signal Electrical Performance Description Matrix Table” below for detailed function definitions. 14 Emerg Sw Digital input 5V TTL Emergency switch. This pin is valid when low level is input. 15 ACC_IO3 Digital input 5V TTL Accessory identification interface; high level by default. This pin and Pin 13 (ACC_IO2) can compose three accessory identification statuses. Please refer to the “DB26 Accessory Identification Matrix Table”” below for detailed function definitions. 16 PRGM_IN_PTT Digital input 5V TTL Programmable input pin (PTT key of external Mic by default; its function is programmable via CPS). It is valid at low level. 17 Audio Ground Audio (grounding) / / 18 SPK+ Analog signal output It forms differential output together with SPK-. Max power output: 10 W(R=8 Ω) External speaker output+ 19 D- USB data cable- USB data USB data cable- 20 GP5_8 Digital input/output 5V TTL GPIO. Programmable via CPS. 21 Ground Ground cable / / 22 GP5_7 Digital input/output 5V TTL GPIO. Programmable via CPS.

UHF1 (400–470 MHz) 80 Pin No. Name Type Signal Electrical Performance Description 23 GP5_6 Digital input/output 5V TTL GPIO. Programmable via CPS. 24 AUX Audio Out 1 Analog output Load impedance >1 kΩ Vrms=300 mV±10% Auxiliary audio (external speaker) output 1 25 AUX Audio Out 2 Analog output Load impedance >1 kΩ Vrms=300 mV±10% Auxiliary audio (external speaker) output 2 26 Ign Sense Detect Pin Analog voltage input Ignition voltage input >7 V Input pin for ignition voltage Note When a pin is marked with 5 V TTL level, this pin has the pull-up function. If the pin needs to be set to high level, empty this pin. DB26 Accessory Identification Matrix Table (composed of Pin 13 and Pin 15): Pin 13 Pin 15 Radio Status High level High level Default status. The mobile radio is in USB slave mode or not connected to any accessory. High level Low level The mobile radio is in USB master mode or connected to a USB smart accessory (such as palm microphone with keypad). Low level High level The mobile radio is connected to an external speaker (including desktop microphone with earpiece). Low level Low level Reserved 5.3 Other Interfaces J2 (LCD Display Interface) Pin No. Name Description 1 GND Grounding pin 2 VCI 2.5–3.3 V adjustable port 3 VCI 2.5–3.3 V adjustable port 4 IOVCC 1.65–3.3 V adjustable I/O port

UHF1 (400–470 MHz) 18 Pin No. Name Description 5 FLM Synchronization signal control port 6 CS Chip select signal 7 RS Register select 8 WR Write signal 9 RD Read signal 10 DB0 Data bus 11 DB1 12 DB2 13 DB3 14 DB4 15 DB5 16 DB6 17 DB7 18 DB8 19 DB9 20 DB10 21 DB11 22 DB12 23 DB13 24 DB14 25 DB15 26 DB16 27 DB17 28 RESET Reset signal 29 IM3 Select data cable

UHF1 (400–470 MHz) 80 Pin No. Name Description 30 IM0 31 LEDA LED anode 32 LED_K1 LED cathode 33 LED_K2 34 LED_K3 J4 (Aviation Interface of Front Panel) Pin No. Name Description 1 ACC_IO1 Digital input 2 PTT_IN Digital input 3 External_Audio Analog output 4 USB_D- USB data cable 5 GND Ground cable 6 USB_VBUS Power supply 7 MIC_IN Analog input 8 USB_D+ USB data cable 9 HOOK Hook signal input 10 ACC_IO2 Digital input J400 (Option Board Interface) Pin No. Signal Function I/O of the Radio Voltage (Option Board VDD=3.3 V) Remark 1 GPIO1 GPIO I/O VIH MIN=0.7VDD VIL MAX=0. 3VDD VOH MIN=0.8VDD VOL MAX=0.22VDD GPIO5: output signal of resetting the option board. GPIO4/GPIO5: Unidirectional output interfaces. They require their input resistances are greater than or 3 GPIO2 5 GPIO3 7 GPIO4 O 9 GPIO5 RESET-OUT O

UHF1 (400–470 MHz) 20 Pin No. Signal Function I/O of the Radio Voltage (Option Board VDD=3.3 V) Remark equal to 47 kΩ. 11 UART-TX UART O UART 13 UART-RX I 15 UART-CTS I 17 UART-RTS O 2 I2C –SDA I2C I/O I2C 4 I2C -SCL O 6 MCBSP-DR MCBSP I McBSP: Multi-channel buffered serial port 8 MCBSP-WCLK I/O 10 MCBSP-DX O 12 MCBSP-FSX I/O 14 AGND AGND / / / 16 AF OB TO MB AF I 80 mV (standard output from the option board to the main board) MAX: 700 mV 18 AF MB TO OB AF O 80 mV (standard output from the main board to the option board) MAX: 700mV 19 DGND DGND / / / 20 3V6 or 5V Power O Voltage: 5.0 V /

UHF1 (400–470 MHz) 80 J403 (Pin Interface) Pin No. Name Description 1 Vbus USB Power supply: +5 V 2 Ground Ground cable 3 GP5_3 Digital input/output 4 SW B+ sense Power supply 5 External Alarm Analog voltage output 6 Power Ground Power supply (grounding) 7 Tx Audio Analog input 8 RX Audio Analog output 9 Spkr- Analog output 10 D+ USB USB data cable+ 11 USB_GROUDN Ground cable 12 GP5_2 Digital input/output 13 ACC_IO2 Digital input 14 Emerg Sw Digital input 15 ACC_IO3 Digital input 16 PRGM_IN_PTT Digital input 17 Audio Ground Audio ground 18 Spkr+ Analog output 19 D- USB USB data cable- 20 GP5_8 Input/output 21 Ground Ground cable 22 GP5_7 Input/output 23 GP5_6 Digital input/output 24 AUX Audio Out 1 Analog output

UHF1 (400–470 MHz) 22 Pin No. Name Description 25 AUX Audio Out 2 Analog output 26 Ign Sense Analog voltage input J404 (Front Panel Interface) Pin No. Name Description 1 INT_MIC Audio input 2 MIC_GROUND Audio input (grounding) 3 ACC_IO1 Accessory identification interface 1 4 USB_VBUS USB power supply 5 HOOK HOOK 6 PTT PTT 7 USB_D- USB data cable D- 8 USB_D+ USB data cable D+ 9 ACC_IO2 Accessory identification interface 2 10 UART2_RXD_A Volume control port 11 UART2_TXD_B / 12 EXTERNAL_AUDIO Audio signal output by accessory (mobile radio) 13 SPKR1+ Speaker audio signal cable+ 14 SPKR1- Speaker audio signal cable- 15 5VD Power supply 16 PRST Reset signal 17 KB_C0 Matrix keyboard 18 KB_C1 19 KB_C2 20 KB_C3 21 B_R0

UHF1 (400–470 MHz) 80 Pin No. Name Description 22 B_R1 23 B_R2 24 CSLED Backlight control IC chip select 25 CLOC Backlight control IC clock 26 DATA Backlight control IC data 27 OE_LCD LCD read enable 28 WE_LCD LCD write enable 29 CS2_LCD LCD chip select 30 F_A1_LCD LCD register select enable 31 F_D7 LCD data bus 32 F_D6 33 F_D5 34 F_D4 35 F_D3 36 F_D2 37 F_D1 LCD data bus 38 F_D0 39 GND Grounding 40 PWB_IN Power On/Off signal

UHF1 (400–470 MHz) 24 6. Tuning Description 6.1 Required Test Instruments  Radio communication test sets: HP8921 and Aeroflex 3920  Power supply: 15 A/30 V  Multimeter  Tuner software 6.2 Tuning Procedures 6.2.1 Tuning the Radio After re-assembling the radio, you need to tune it with the Tuner software and HP8921. The specific operations are described in the table below. After tuning the items of the current channel, you must switch the radio to the next channel; otherwise, the adjustments will not be saved to the radio properly. Items Method TX Section Reference Oscillator Warp 1. Connect the radio to HP8921 via the antenna connector, and set HP8921 to TX test mode. 2. Open the Tuner software and go to “TUNE_DATA -> TX -> Reference Oscillator Warp” in the left navigation tree. Then click the “Transmit On” button. 3. Adjust the vernier on the Tuner until the frequency offset between the frequency displayed on HP8921 and the frequency (Tx) displayed on Tuner is less than or equals to ±40 Hz. 4. Click the “Save” button on Tuner to save the existing value to the radio. 5. Click the “Transmit Off” button on Tuner. Transmit Power Calibration Here takes the tuning of low TX power for example. 1. Connect the radio to HP8921 via the antenna connector, and set HP8921 to TX test mode. 2. Open the Tuner software and go to “TUNE_DATA -> TX -> Transmit Power Calibration” in the left navigation tree. Then select an appropriate channel.

UHF1 (400–470 MHz) 80 Items Method 3. Click the “Transmit On” button on Tuner.4. Adjust the power to the required level as follows:Low power: 1 W (for version D/F)Medium power: 25 WHigh power: 45 W5. Click the “Save” button on Tuner to save the existing value to the radio.Transmit-to-Deviation 1.Connect the radio to HP8921 via the antenna connector, and set HP8921to TX test mode.2. Set the parameters on the HP8921 as follows:IF Filter: 230 kHzFilter1: <20 Hz HPFFilter2: <15 kHz LPFDe-Emphasis: off3. Open the Tuner software and go to “TUNE_DATA -> TX ->Transmit-to-Deviation” in the left navigation tree. Then click the “TransmitOn” button. Then set the modulation signal of HP8921 to “100 Hz”.4.Adjust the vernier on Tuner until the frequency deviation displayed onHP8921 is “5 kHz”.5. Click the “Save” button on Tuner to save the existing value to the radio.6. Click the “Transmit Off” button on Tuner.Modulation Balance Here takes the low frequency deviation for example. 1.Connect the radio to HP8921 via the antenna connector, and set HP8921to TX test mode.2. Set the parameters on the HP8921 as follows:IF Filter: 230 kHzFilter1: <20 Hz HPFFilter2: <15 kHz LPFDe-Emphasis: off3. Open the Tuner software and go to “TUNE_DATA -> TX -> ModulationBalance” in the left navigation tree. Then select an appropriate channel.4.Click the “Transmit On” button on Tuner. Then set the modulation signal

UHF1 (400–470 MHz) 26 Items Method of HP8921 to “100 Hz”. 5. Adjust the value in the dialog box on Tuner until the frequency deviation displayed on HP8921 is “5 kHz”. 6. Press the Enter key on the keyboard to confirm your settings. 7. Click the “Save” button on Tuner to save the existing value to the radio. 8. Click the “Transmit Off” button on Tuner. Transmit Oscillator Voltage 1. Connect the radio to HP8921 via the antenna connector, and set HP8921 to TX test mode. 2. Open the Tuner software and go to “TUNE_DATA -> TX -> Transmit Oscillator Voltage” in the left navigation tree. 3. Click the “Save” button to save the existing value to the radio. RX Section Front-end Filter 1. Connect the radio to HP8921 via the antenna connector. 2. Connect the Audio Out port of the radio to the Audio In port of HP8921, and set HP8921 to RX test mode. 3. Set the parameters on the HP8921 as follows: Output RF signal: -118 dBm/Frequency (current channel frequency) Modulation frequency: 1 kHz Modulation deviation: 3 kHz 4. Open the Tuner software and go to “TUNE_DATA -> RX -> Front-end Filter” in the left navigation tree. Adjust the vernier on Tuner until the “SINAD” value displayed on HP8921 is greater than 14 dB. 5. Set the output RF signal of HP8921 to -25 Bm/(current channel frequency -36.675 MHz). 6. Adjust the vernier on Tuner until the “SINAD” value displayed on HP8921 is less than 14 dB. 7. Press the Enter key on the keyboard to confirm your settings. 8. Click the “Save” button on Tuner to save the existing value to the radio. Front-end Gain 1. Connect the radio to HP8921 via the antenna connector, and set HP8921 to RX test mode. 2. Set HP8921 to output an unmodulated RF signal with a value of “-70

UHF1 (400–470 MHz) 80 Items Method dBm/Frequency (current channel frequency)”. 3. Press the Enter key on the keyboard to confirm your settings. 4. Click the “Save” button on Tuner to save the existing value to the radio. Receive Oscillator Voltage 1. Connect the radio to HP8921 via the antenna connector, and set HP8921 to RX test mode. 2. Open the Tuner software and go to “TUNE_DATA -> RX -> Receive Oscillator Voltage” in the left navigation tree. 3. Set HP8921 to output an unmodulated RF signal with a value of “-47 dBm/Frequency (current channel frequency)”. 4. Click the “Save” button to save the existing value to the radio. 6.2.2 Testing the Radio After tuning all the items of the radio, you need to test the digital RF signal of the mobile radio via Aeroflex 3920 (Digital Radio Test set). Transmitting Step 1 Connect the mobile radio to Aeroflex 3920 via the antenna connector. Step 2 Open the Tuner software and go to “TEST -> TX -> Transmit BER (0.153)”. Step 3 Select the channel to be tested and select the corresponding power level (High Power or Low Power) in “Parameter” on Tuner. Step 4 Click the “Transmit On” button on Tuner. Step 5 Set the parameters on the Aeroflex 3920 as follows:  Frq: Be consistent with the TX frequency of the channel to be tested.  STD IB 511: .153 Step 6 Observe the “avg” value of “UUT TX Bit Err” parameter in “UUT Measurements” module of Aeroflex 3920, which is the average bit error rate of the tested channel during transmitting. The radio is operating properly when the Aeroflex 3920 parameters are as follows:  FSK Error: ≤5%  Symbol Clock Err: ≤100 Hz  Signal Power: 3.9–4.5W  Magnitude Error: ≤1%  UUT TX Bit Err = 0%

UHF1 (400–470 MHz) 28 Step 7 Click the “Transmit Off” button on Tuner to finish testing. Receiving Step 1 Connect the antenna connector of the radio to the RF port of Aeroflex 3920, and set Aeroflex 3920 as follows (remain default values for other parameters):  Frq: Be consistent with the frequency of the channel to be tested.  STD IB 511: .153  Lv1 (signal strength): -116 dBm (-110 dBm by default) Step 2 Open the Tuner software and go to “TEST -> RX -> Receiver BER (0.153)”. Step 3 Select the channel to be tested and click the “Start” button on Tuner. Step 4 Observe the “Average Rate” displayed on Tuner. You can set different “Average Num” (the calculation base of BER, which is “10” by default) to obtain different “Average Rate”. Step 5 Modify the value of “Lv1” parameter of Aeroflex 3920, so as to obtain the average BERs of the tested channel under different signal strengths. The mobile radio is operating properly when the average BER is less than 5%. Note When the parameter “Lv1” is set to “-110 dBm”, the mobile radio is operating properly when the average BER is less than 1%. Step 6 Click the “Stop” button on Tuner to finish testing.

UHF1 (400–470 MHz) 81 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. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC radiation exposure limits set forth for an controlled environment. This equipment should be installed and operated with minimum distance 100cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This equipment complies with IC RSS-102 radiation exposure limits set forth for an controlled environment. This equipment should be installed and operated with minimum distance 100cm between the radiator and your body. Cet équipement est conforme aux limites d'exposition aux radiations IC CNR-102 établies pour un environnement contrôlé. Cet équipement doit être installé et utilisé avec une distance minimale de 440 cm entre le radiateur et votre corps. This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device. L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) L’appareil ne doit pas produire de brouillage;

UHF1 (400–470 MHz) 80 (2) L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.