AP2.3 DSC/WATCH Receiver
AP2-13
AP2.3 SPECIFICATIONS OF THE DSC/WATCH RECEIVER
AP2.3.1 DSC-60
1. DSC TERMINAL
(1) Line out 0 dBm (adjustable between -12dBm and +12dBm),
600 ohms, balanced
(2) Line in -30 to +10 dBm, 600 ohms, balanced
(3) Frequency shift Mark: 1615 Hz, Space: 1785 Hz
(4) Baud rate 100 baud’s ± 30 x 10
-6
(5) Protocol Complies with ITU-R Rec.493-9, 541-8, 1082-1
2. DSC WATCH KEEPING RECEIVER
(1) Receiving Frequency
For MF spec: 2187.5 kHz
For MF/HF spec : 2187.5 kHz, 4207.5 kHz, 6312 kHz, 8414.5 kHz,
12577 kHz and 16804.5 kHz
(2) Class of Emission F1B, J2B
(3) Frequency Stability within ±10 Hz
(4) Intermediate Frequency 1st: 54455 kHz, 2nd: 455 kHz
(5) Selectivity -6 dB: 270 Hz or more
-30 dB: within ±380Hz
-60 dB: within ±550Hz
(6) RF Input Impedance 50 ohms
(7) Receiving Sensitivity Better than 0dBµ (at error rate within 1%)
(8) Warming-up Time 1 minute (oven 30 minutes)
3. GENERAL WATCH KEEPING RECEIVER (OPTION)
(1) Receiving Frequency 1.6 MHz to 27.5 MHz
(2) Class of Emission F1B, J2B
(3) Frequency Stability within ±10Hz
(4) Intermediate Frequency 1st: 54455 kHz, 2nd: 455 kHz
(5) Selectivity: -6 dB: 270 or more
-30 dB: within ±380Hz
-60 dB: within ±550Hz
(6) RF Input Impedance: 50 ohms
(7) Receiving Sensitivity: Better than 0dBµ (at error rate within 1%)
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