HYT TC-610 Manual 

58 Adjustment Description ⅠDiagram of Operation Key (Take TC-610 for example) Ⅱ Instrument Radio Communication Test Set (HP8921) 1 set 10V/3A DC Regulated Power Supply 1 set Digital Voltmeter 1 set Ammeter 1 set Ⅲ Preparation Before Adjustment Put the board to be tested on the test clamp and turn the power on. Note: Each test point must be in good contact with the clamp. Ⅳ Adjustment Steps 1. Operations Before Adjustment 1）Adjustment of PCB Board After program is downloaded onto the PCB board and EEPROM is initialized with the configuration file (program is d ...

63 W Rotate to CH6, CH7 and CH8 respectively and CTCSS is set to low, medium and high respectively. Press PTT to enable this function. Wide band Short press PTT to switch frequencies on each channel. Adjust VR601 with a ceramic alignment screwdriver and check each frequency. Enter the mode to adjust finely with SK1/SK2 to limit the CTCSS deviation to the required range if necessary. 500~900Hz (It is recommended to adjust to 550-650Hz) CTCSS Deviation N Long press PTT (≥1.5s) to enter narrow band on CH6, CH7 and CH8 and short press PTT to switch frequencies. Radio communication test set BPF: <20Hz~300Hz Antenna VR601 SK1 SK2 ...

63 W Rotate to CH6, CH7 and CH8 respectively and CTCSS is set to low, medium and high respectively. Press PTT to enable this function. Wide band Short press PTT to switch frequencies on each channel. Adjust VR601 with a ceramic alignment screwdriver and check each frequency. Enter the mode to adjust finely with SK1/SK2 to limit the CTCSS deviation to the required range if necessary. 500~900Hz (It is recommended to adjust to 550-650Hz) CTCSS Deviation N Long press PTT (≥1.5s) to enter narrow band on CH6, CH7 and CH8 and short press PTT to switch frequencies. Radio communication test set BPF: <20Hz~300Hz Antenna VR601 SK1 SK2 ...

64 Rotate to CH9. VOX 1 Press SK1 or SK2 to enable the function. Radio communication test set BPF: <20Hz~15kHz AF:1kHz 10mV Adjust with SK1/SK2 and rotate the Channel Selector knob to save after one-point adjustment. Rotate to CH10. VOX 2 Press SK1 or SK2 to enable the function. Radio communication test set BPF: <20Hz~15kHz AF:1kHz 6mV Adjust with SK1/SK2 and rotate the Channel Selector knob to save after one-point adjustment Rotate to CH11. VOX 3 Press SK1 or SK2 to enable the function. Radio communication test set BPF: < 20Hz~15kHz AF:1kHz 4.5mV Adjust with SK1/SK2 and rotate the Channel Selector knob to save after one-po ...

65 Rotate to CH1 and SQL level 1 ON is set. Press SK1 or SK2 to enable the function. The channel spacing is wide band. Low frequency Short press PTT to switch frequencies. Radio communication test set SSG: -122dBm MOD: 1KHz DEV: 3KHz Filter: 0.3～ 3KHz Squelch Level 1: -122±1dB Rotate to CH2 and SQL level 5 ON is set. Press SK1 or SK2 to enable the function. The channel spacing is wide band. Low frequency Short press PTT to switch frequencies. Radio communication test set SSG: -119dB MOD: 1KHz DEV: 3KHz Filter: 0.3～ 3KHz Squelch Level 5: -119±1dB W Rotate to CH3 and SQL level 9 ON is set. Press SK1 or SK2 to enable the ...

66 Rotate to CH4 and SQL level 1 OFF is set. Press SK1 or SK2 to enable the function. The channel spacing is wide band. Low frequency Short press PTT to switch frequencies. Radio communication test set SSG: -124dBm MOD: 1KHz DEV: 3KHz Filter: 0.3～3KHz Squelch Level 1: -124±1dB Rotate to CH5 and SQL level 5 OFF is set. Press SK1 or SK2 to enable the function. The channel spacing is wide band. Low frequency Short press PTT to switch frequencies. Radio communication test set SSG: -121dBm MOD: 1KHz DEV: 3KHz Filter: 0.3～ 3KHz Squelch Level 5: -121±1dB W Rotate to CH6 and SQL level 9 OFF is set. Press SK1 or SK2 to enabl ...

67 Appendix 1: Reference Software Values for TC-610/620 Source Radio Wide Narrow Test Items Freq. 1 Freq. 2 Freq. 3 Freq. 4 Freq. 5 Freq. 1 Freq . 2 Freq. 3 Freq. 4 Freq. 5 Adjust Preset Tx Power 446 Tx Low Power 742 714 692 676 672 Tx High Power 1111 1076 1055 1047 1072 CDCSS Deviation 66 67 67 67 69 38 38 39 40 39 CTCSS (67Hz) Deviation 121 125 128 131 135 69 72 72 75 77 CTCSS (151.8Hz) Deviation 121 124 126 128 131 68 70 72 73 75 CTCSS (254.1Hz) Deviation 133 135 137 140 143 75 77 78 78 81 VOX 1 55 VOX 2 45 VOX 3 25 VOX 4 19 VOX 5 15 Tx Low Voltage Threshold 158 Squelch Level 1 ON 27 25 27 25 24 18 18 17 17 20 Squelch Level ...

68 Appendix 2: Reference Voltage Setting of Battery Capacity Check in transmit mode Green LED (70%-100%) >7.35V 18min Orange LED (50%-70%) 7.15V - 7.35V 12min Red LED (30%-50%) 7.00V - 7.15V 12min LED flashes red（<30%） 6.20V - 7.00V 18min LED flashes red with a warning tone 5.80V - 6.20V Halt <5.80V Check in transmit and standby modes (or press the battery capacity check key. Green LED (70%-100%) >7.55V 18min Orange LED (50%-70%) 7.35V -7.55V 12min Red LED (30%-50%) 7.00V - 7.35V 20min LED flashes red (<30%) 6.50V - 7.00V 18min LED flashes red and a warning tone is heard every 10 seconds. 5.80V - 6.50V ...