Chapter 4: Installing the ADU
ADU cables
21
4444
Recommended Antenna Cables:
Furthermore it has to be checked in the data sheet from the cable supplier,
that both the RF- attenuation and the DC-resistance are kept within the
maximum specified values:
•
Antenna Cable RF-attenuation max: 10 dB excl. connector.
•
Antenna Cable loop DC-resistance max: 0.54
Ω
.
Also it has to be ensured that the specified minimum bending radius is
respected. If this is not the case, the loss in the cable will increase. Check the
instruction from the cable supplier.
The coax cable can be extended if it complies with the specified losses listed
below.
•
Maximum RF loss, 1525 - 1660 MHz: 10 dB
•
Maximum DC loss, R loop: 0.54
Ω
•
Maximum RF loss, 3.5 - 4.0 MHz: 2 dB
Cable Type
Absolute maximum length
RG214U
25 m
02Y(st)C2YC 2.7/7.3AF
50 m
SA07272 (TT-116689)
50 m
SA12272 (TT-108740-060)
60 m
LCF12-50J
100 m
Содержание TracPhone F55
Страница 1: ...A Guide to the TracPhone F55 F77 Satellite Communications KVH TracPhone F55 F77 installation manual...
Страница 22: ...Table of Contents x...
Страница 28: ...Chapter 2 GMDSS Installations 6 Power Supply...
Страница 40: ...Chapter 3 Placing the Antenna 18 Antenna Mast Design...
Страница 48: ...Chapter 5 Installing the BDU 26 Grounding the BDU...
Страница 54: ...Chapter 6 F77 Distress Cradle 32 Assembly Alternative...
Страница 58: ...Chapter 7 F55 Passive Cradle 36 Passive Cradle Assembly...
Страница 64: ...Chapter 8 Connecting Power 42 Power supply specification...
Страница 84: ...Chapter 10 Hardware Interfaces 62 Discrete I O interface...
Страница 109: ...Appendix B F55 77 ADU Technical Specifications Outline Dimensions Flange 87 BBBB B 6 Outline Dimensions Flange...
Страница 116: ...Appendix C F55 77 BDU Technical Specifications 94 Measuring the Ship Source Impedance...
Страница 120: ...Appendix D Distress Cradle Technical Specifications 98 Outline Dimensions...
Страница 122: ...Chapter E Passive Cradle Technical Specifications 100 Outline Dimensions E 2 Outline Dimensions Dimension are in mm...
Страница 123: ...Chapter E Passive Cradle Technical Specifications Outline Dimensions 101 EEE...
Страница 124: ...Chapter E Passive Cradle Technical Specifications 102 Outline Dimensions...
Страница 126: ...Chapter F Handset Technical Specifications 104 Outline Dimensions F 2 Outline Dimensions Dimension are in mm...