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ADJUSTMENT 1 Required Test Equipment Table 1 Number Name Parameter requirements Computer Above P2, compatible IBM PC, WINDOWS 98/ME/2000/XPOperating System Programming ARD001 software Programming cable Dubbing cable CPL-01 Output voltage:7.4V, output electric current:≥ 5A DC regulator Test range: 0.5---10W power Frequency range: 100MHz—500MHz meter Resistance: 50Ω...
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Figure 1 External Speaker/microphone Interface Definition 2 Adjustment Items Some detection and adjustment shall be made to the station technical data after changing the components during the maintenance. The debugging introduction of some related circuits goes as follows: Some parameters of the product can be adjusted (“Interphone Performance Tuning”) by use of ARD001 Programming Software of our company.
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Table 2 High/ Intermediate/ Low Frequency Point of All Models Low Frequency Point Intermediate High Frequency Point Frequency Point DR6000-1 DR6100-1 173.975 MHz 136.000 MHz 155.100 MHz DR7000-1 DR7100-1 3.2 PLL frequency calibration Double-click to enter “Frequency Stability” in “Interphone Performance Tuning” to achieve the rated transmitting frequency by adjusting the number from 0 to 255 (Error<200Hz).
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is the same as that of “QT(670) frequency offset”. 3.8 Receiving Sensitivity Double-click to enter “Receiving Sensitivity” in “Interphone Performance Tuning” Mode to adjust the five frequency points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively and the number from 0 to 255 for setting max sensitivity of all points.
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Table 4 Receiving part Item Test condition Instrumentation Test point Remarks Correcting Requirement member Power of Test frequency: RF signal Audio (Volume knob Intermediate Frequency generator Power Speaker clockwise Point internal Interface the end) Audio Oscillograph Antenna Interface Input: speaker: Power>0.3W :...
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Frequency CTCSS Computer Adjust CTCSS:67Hz deviator/Integration ±50Hz Test Mode ±0.375kHz Tester Frequency Computer Adjust DCS DEV DCS:023N deviator/Integration ±50Hz Test Mode ±0.375kHz Tester Indicator light Battery Computer Battery Terminal: 6.8V twinkles after Warning Test Mode adjustment...
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