User's Manual

09/2003, CATTRON-THEIMEG
™
Page 3 of 4
Radio Frequency (RF) Transceiver, continued.
Figure 1-7. R3HNX Transceiver & RF Amplifier Board LED Indicators
TRANSCEIVER BOARD
RF AMPLIFIER BOARD
VCO
LOCK
LED
TX
RX
DATA
LED
RF POWER
LED
TO ANT
TO RX
TO TX
Q-SYNC
LED
CARRIER
DETECT
LED
RECEIVER
POWER
LED
Table 1-2. R3HNX Transceiver & RF Amplifier Board LED Indicators
LED Description
Transceiver Power This red LED indicates the presence of DC power on the transceiver
circuit board.
Carrier Detect The green Carrier Detect LED indicates that the receiver section is
receiving a RF signal.
Data This yellow LED indicates that the received RF message contains data.
Q-Sync This orange LED indicates an interrupt that signifies the computer/
decoder has received a new message.
VCO Lock This red LED (located undernneath the EMI/RFI shield) illuminates when
the transceiver frequency synthesizer is unable to lock onto the required
frequency.
RF Power LED This red LED (located on the RF amplifier) flashes when the transmitted
digital RF ‘POLLING
™
’ data from the R3HNX transmitter is being
amplified and sent to the RCT