Appendix 1. Specifications
AP1-1
1. NAVTEX RECEIVER
1.1 Receiving frequency 518 kHz and 490 kHz (or 4209.5 kHz),
receive both frequencies simultaneously
1.2 Mode of reception F1B
1.3 Sensitivity 2 µV e.m.f. (50 ohms), 4 % error rate or less
1.4 Input protection Withstands 30 Vrms for 15 minutes or more (w/ pre-amp unit)
1.5 Spurious emission 1 nW or less
1.6 Message category A: Navigation warning
B: Meteorological warning
C: Ice report
D: Search and rescue information/ pirate attack warnings
E: Meteorological forecast
F: Pilot message
G: AIS
H: Loran message
I: Spare
J: SATNAV messages
K: Other electronic navigational aid and system message
L: Navigational warning (addition to “A”)
V to Y: Special services allocation by the NAVTEX
Co-ordinating Panel
Z: QRU (no message on hand)
2. DISPLAY UNIT
2.1 Display system 5-inch, 76 (W) x 100 (H) mm, monochrome LCD,
240 x 320 dots
2.2 Display modes Message selection mode, Message display mode
2.3 Message storage 200 messages x 2 channels
(100,000 characters x 2 channels)
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