Mode Combination; Rpu416A Circuit Description - HYT RPU416A Manual

1. Mode
User mode: Turn on the power to enter.
PC mode"Set and adjust with PC software or programmer.
2. Parts description:
(1) Antenna
(2) Channel (frequency) selector knob
Turn the knob to choose channel from 1~16(channel 16 may be set by distributor as scan channel).
(3) LED light
Lights red while transmitting, green while receiving a signal. Flashes red when the battery voltage is
low while transmitting.
(4) Power switch/Volume control
Turn the knob clockwise to switch the transceiver ON, anti-clockwise to turn off the power till there is
a "click" sound, rotate to adjust the volume level.
(5) Speaker
(6) Microphone
(7) PTT switch (push to talk)
Press the button while transmitting, and release it while receiving.
(8) Monitor key
Press it to shut off squelch, noise could be heard, release to connect squelch.
(9) Speaker/microphone jack
(10) Belt clip
(11) Battery (TB-82)
1. Frequency configuration
The receiver utilizes double conversion. The first IF is 38.85MHz and the second IF is 450kHz. The first
local oscillator signal is supplied from the PLL circuit.
The PLL circuit in the transmitter generates the necessary frequencies. Fig.1 shows the frequencies.
RPU416A frequency range: 450MHz—470MHz

Mode Combination

RPU416A Circuit Description

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