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Appendix E: Additional Information
Specifications
Size: 0.8" x 5.2" x 5.2" (21 mm x 133 mm x 133 mm)
Weight: 11 oz (0.32 kg)
Power Requirements:
6 V dc to 25 V dc, less than 30 mA (LEDS on, unit active)
6 V dc to 25 V dc, less than 15 mA (LEDS off, unit inactive)
Power Plug Polarity: Center pin positive
Watch Dog Timer: Approximately 2-1/2 minutes
External Carrier Detect (XCD): Pulldown to ground
External Reset: Pulldown to ground
PTT Output: Open drain, +50 V dc max, 200 mA max
Audio Output:
Continuously adjustable: 1 mV p-p to 4 V p-p
Output Impedance (ac coupled): 600 Ω
Modulation:
1200 bps FSK, full duplex
CCITT V.23 (1300 Hz / 2100 Hz)
Audio Input:
Input Sensitivity: 5 mV p-p
Dynamic Range: 70 dB
Input Impedance (unbalanced): 10 kΩ (600 Ω with Jumper J3 installed)
Max Input Voltage: 12 V dc; 35 V p-p sinusoidal
Modes of Operation Packet, WeFax, KISS, XKISS, Host, GPS
Other Features: PBBS, KA-NODE, Remote Access, and, as an option, K-Net
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