FCC ID: K6620165X40
IC IF: 511B-20165X40
Alignment
Vertex Standard Co., Ltd.
3
oscillator shields and circuit boards firmly affixed in place. Also, the test equipment
must be thoroughly warmed up before beginning.
Notes: Signal levels in dB referred to in alignment are based on 0 dBµ = 0.5 µV.
All items tune and/or adjust by Auto-Tuning Mode or Manual Tuning Mode.
PLL Reference Frequency
With the wattmeter, dummy load and frequency counter connected to the antenna
jack.
Tune the transceiver 435.05 MHz and set the TX power level to low power mode.
Key the transceiver, adjust the counter frequency is within ±100 Hz of 435.05 MHz.
Transmitter Deviation
With the wattmeter, dummy load and deviation meter connected to the antenna
jack.
Inject a 1 kHz audio signal as a level of 80 mV to pin 5 of the
MIC
jack (pin 4 is
Ground).
Key the transmitter on 146.05/440.05 MHz. Adjust the frequency deviation is
within 4.0-4.4 KHz on the deviation meter.
CTCSS Deviation
With the wattmeter, dummy load and deviation meter connected to the antenna
jack.
Key the transmitter on 146.05/440.05 MHz. Adjust the frequency deviation is
within 0.65-0.75 KHz on the deviation meter.
DCS Deviation
With the wattmeter, dummy load and deviation meter connected to the antenna
jack.
Key the transmitter on 146.05/440.05 MHz. Adjust the frequency deviation is
within 0.50-0.60 KHz on the deviation meter.