Rainbow Aircraft Inc. V10 Manual Do Utilizador
The V10 transceiver monitors the temperature of the transmitter power stage. The result of
this measurement is alternated with the voltage display. The V10 transceiver is designed to
prevent transmitter damage due to overheating caused by misuse, very badly matched
antennas or antenna cable wiring faults.
As a temperature of 70 degrees Celsius is reached power is gradually reduced, reaching a
minimum of about 4W carrier power if the temperature is higher than 95 degrees Celsius at
the transmitter power transistor.
this measurement is alternated with the voltage display. The V10 transceiver is designed to
prevent transmitter damage due to overheating caused by misuse, very badly matched
antennas or antenna cable wiring faults.
As a temperature of 70 degrees Celsius is reached power is gradually reduced, reaching a
minimum of about 4W carrier power if the temperature is higher than 95 degrees Celsius at
the transmitter power transistor.
Stuck PTT
The V10 transceiver is designed to automatically disconnect the PTT if the transmitter is
continuously keyed for more than 35 seconds. In this case the “>>>STUCK PTT<<<'
message will show on the display and the transmitter is switched off and the transceiver
returns to receiver mode.
If it was the intention to transmit for more than 35 seconds, simply let go of the PTT and key
again to start a new 35 second cycle. There is no limit to the number of 35 second cycles
allowed.
continuously keyed for more than 35 seconds. In this case the “>>>STUCK PTT<<<'
message will show on the display and the transmitter is switched off and the transceiver
returns to receiver mode.
If it was the intention to transmit for more than 35 seconds, simply let go of the PTT and key
again to start a new 35 second cycle. There is no limit to the number of 35 second cycles
allowed.
Transmit signal modulator
The V10 transmitter has a digital modulator that is directly under microprocessor control. The
audio signal to be transmitted is processed using digital signal processing algorithms before
being presented to the transmitter.
Software control of the modulator allows the system to control modulation under varying
power and temperature conditions. It also allows wide range control of the audio signal
strength (amplitude) to the modulator. This allows effective prevention of over modulation
while at the same time allowing deep and rich modulation of the carrier frequency. This results
in very good audio quality of the transmitted signal and consequent extension of effective
range of the transmitter.
audio signal to be transmitted is processed using digital signal processing algorithms before
being presented to the transmitter.
Software control of the modulator allows the system to control modulation under varying
power and temperature conditions. It also allows wide range control of the audio signal
strength (amplitude) to the modulator. This allows effective prevention of over modulation
while at the same time allowing deep and rich modulation of the carrier frequency. This results
in very good audio quality of the transmitted signal and consequent extension of effective
range of the transmitter.