Meinberg GPSANT GPS Antenna User’s Manual
User Manual: Meinberg GPSANT GPS Antenna User’s Manual Troubleshoot Meinberg GPSANT GPS Antenna |
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MANUAL GPS Antenna Antenna / Converter Unit 26th November 2015 Meinberg Radio Clocks GmbH & Co. KG Page 0 Table of Contents 1 Safety Hints Antenna 1 2 Meinberg GPS Antenna/Converter Unit 2.1 Mounting the GPS Antenna . . . . . . . . . . . . . . . . 2.1.1 Example: . . . . . . . . . . . . . . . . . . . . . . 2.1.2 Antenna Assembly with Surge Voltage Protection 2.1.3 Antenna Short-Circuit . . . . . . . . . . . . . . . 2.2 MBG S-PRO - Technical Speci cations . . . . . . . . . . 2.2.1 MBG S-PRO - Physical Dimensions . . . . . . . 2.2.2 Installation and Grounding . . . . . . . . . . . . 2.3 Features of GOAL . . . . . . . . . . . . . . . . . . . . . 0 . . . . . . . . . . . . . . . . Date: 26th November 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 4 5 6 7 9 9 10 GPS Antenna Page 1 1 Safety Hints Antenna WARNING! DANGER TO LIFE BY ELECTRICAL SHOCK! Make sure to comply with the occupational health and safety standards when installing the antenna. Never work without a proper fall protection device! Do not carry out any installation or maintenance work on the antenna system or cabling when there is a potential risk of lightning. Surge Voltage Protector Due to extremely high currents associated with lightning no surge protection device can provide absolute safety from the impacts caused by lightning! GPS Antenna Date: 26th November 2015 1 Page 2 2 Meinberg GPS Antenna/Converter Unit 2 Meinberg GPS Antenna/Converter Unit - Antenna/Converter Unit Preformed Cable Holder for Wall Mounting Clamps for Pole Mounting Optional: Voltage Protector Antenna: Antenna/converter unit with remote power supply Length of cable: Refer to chapter "Mounting the Antenna" Antenna Input GPS: Antenna circuit 1000 V DC insulated Receiver Input Frequency: 1575.42 MHz (L1) Local Oscillator to Converter Frequency: 10 MHz First IF Frequency: 35.4 MHz Connector: female type-N Protection Class: IP66 Ambient Temperature: -40◦ C ... +65◦ C Humidity: 95% Weigth: 420g (without accessories) 1 1 (1) these frequencys are transfered via the antenna cable. Power Requirements: 12V ... 18V, 100mA (via antenna cable) 2 Date: 26th November 2015 GPS Antenna Page 3 Physical Dimensions: 140 6 180 68 84 450 70 44 M6 240 GPS Antenna Date: 26th November 2015 3 Page 4 2 Meinberg GPS Antenna/Converter Unit 2.1 Mounting the GPS Antenna The GPS satellites are not stationary, but circle round the globe with a period of about 12 hours. They can only be received if no building is in the line-of-sight from the antenna to the satellite, so the antenna/downconverter unit must be installed in a location that has as clear a view of the sky as possible. The best reception is achieved when the antenna has a free view of 8◦ angular elevation above the horizon. If this is not possible, the antenna should be installed with the clearest free view to the equator, because the satellite orbits are located between latitudes 55◦ North and 55◦ South. If this is not possible, you may experience di culty receiving the four satellites necessary to complete the receiver's position solution. The antenna/converter unit can be mounted on a wall, or on a pole up to 60 mm in diameter. A 50 cm plastic tube, two wall-mount brackets, and clamps for pole mounting are included. A standard RG58 coaxial cable should be used to connect the antenna/downconverter unit to the receiver. The maximum length of cable between antenna and receiver depends on the attenuation factor of the coaxial cable. Up to four receivers can be run with one antenna/downconverter unit by using an optional antenna splitter. The total length of an antenna line from antenna to receiver must not be longer than the max. length shown in the table below. The position of the splitter in the antenna line does not matter. The optional delivered MBG S-PRO protection kit can also be used for outdoor installation (degree of protection: IP55). 2.1.1 Example: Type of cable diameter Ø Attenuation at 100MHz max lenght. RG58/CU [mm] [dB]/100m [m] 5mm 17 300 (1) RG213 10.5mm 7 700 (1) (1)This speci cations are made for antenna/converter units produced after January, 2005 The values are typically ones; the exact ones are to nd out from the data sheet of the used cable 4 Date: 26th November 2015 GPS Antenna 2.1 Mounting the GPS Antenna Page 5 2.1.2 Antenna Assembly with Surge Voltage Protection Optional a surge voltage protector for coaxial lines is available. The shield has to be connected to earth as short as possible by using the included mounting bracket. Normally you connect the antenna converter directly with the antenna cable to the system. GPS Antenna Date: 26th November 2015 5 Page 6 2 Meinberg GPS Antenna/Converter Unit 2.1.3 Antenna Short-Circuit (systems with front display only) In case of an antenna line short-circuit the following message appears in the display: ANTENNA SHORT-CIRCUIT DISCONNECT POWER !!! If this message appears the clock has to be disconnected from the mains and the defect eliminated. After that the clock can be powered-up again. The antenna supply voltage must be 15VDC . 6 Date: 26th November 2015 GPS Antenna 2.2 MBG S-PRO - Technical Speci cations Page 7 2.2 MBG S-PRO - Technical Specifications Attachment plug with replaceable gas discharge tube for coaxial signal interfaces. Connection: N connector female/female. The MBG S-PRO set includes a surge voltage protector (Phoenix CN-UB-280DC-BB), a preassembled coax cable and a mounting bracket. The surge voltage protector for coaxial lines has to be installed in the antenna line. The shield has to be connected to earth as short as possible. CN-UB-280DC-BB is equipped with two type-N female connectors. It has no dedicated input/output polarity or prefered mounting orientation. Phoenix CN-UB-280DC-BB Features: • High RF Performance • Multiple Strike Capability • 20 kA Surge Protection • Bi-directional Protection • Rugged and Waterproof Mounting type Type Direction of action Connection-speci c intermediate plugging Attachment plug Line-Shield/Earth Ground Maximum continuous operating voltage UC (wire-ground) 280 V DC 195 V AC Nominal current IN 5 A (25 ◦ C) Operating eective current IC at UC ≤ 1 µA Nominal discharge current Nennableitstoÿstrom In (8/20)µs (Core-Earth) In (8/20)µs (Core-Shield) 20 kA 20 kA Total surge current Total surge current (8/20)µs (10/350)µs 20 kA 2,5 kA GPS Antenna Date: 26th November 2015 7 Page 8 2 Meinberg GPS Antenna/Converter Unit Max. discharge current Imax (8/20)µs maximum (Core-Shield) 20 kA Nominal pulse current Ian (10/1000)µs (Core-Shield) 100 A Impulse discharge current (10/350) µs, peak value Iimp 2,5 kA Output voltage limitation Output voltage limitation at 1 kV/µs (Core-Earth) spike at 1 kV/µs (Core-Earth) spike ≤ 900 V ≤ 900 V Response time Response time tA (Core-Earth) tA (Core-GND) ≤ 100 ns ≤ 100 ns Input attenuation aE, asym. typ. 0.1 dB (≤ 1.2 GHz) typ. 0.2 dB (≤ 2.2 GHz) Cut-o frequency fg (3 dB), asym. (shield) in 50 Ohm system > 3 GHz Standing wave ratio SWR in a 50 Ω system Permissible HF power Pmax at VSWR = xx (50 ohm system) 700 W (VSWR = 1.1) 200 W (VSWR = ∞) Capacity Capacity (Core-Earth) asymmetrical (shield) typ. 1,5 pF typ. 1,5 pF Surge current resistance (conductor-ground) C1 - 1 kV/500 A C2 - 10 kV/5 kA C3 - 100 A D1 - 2,5 kA Ambient temperature (operation) -40 ◦ C ... 80 ◦ C Degree of protection IP55 Housing material Nickel-plated brass Color nickel Dimensions Height 25 mm, Width 25 mm, Depth 67 mm Connection data Standards/regulations IN OUT typ. 1.1 (≤ 2 GHz) N-Connector 50 Ohm N-Connector Buchse N-Connector Buchse IEC 61643-21 Source: PHOENIXCONTACT.COM Surge Voltage Protector - CN-UB-280DC-BB 8 Date: 26th November 2015 GPS Antenna 2.2 MBG S-PRO - Technical Speci cations Page 9 2.2.1 MBG S-PRO - Physical Dimensions 11 25 13,4 67 15,8 2.2.2 Installation and Grounding GPS Antenna Date: 26th November 2015 9 Page 10 2 Meinberg GPS Antenna/Converter Unit 2.3 Features of GOAL GOAL is a GPS Optical Antenna Link set for connecting a Meinberg GPS antenna to a Meinberg GPS receiver via one optical multimode ber. The module GOAL/R is to connect to the receivers antenna input via a patch cable and can be assembled somewhere around. The module GOAL/A is to mount indoor, connected to the Meinberg antenna via a coaxial cable. Both modules are linked to each other via a single GI50/125µm or GI62,5/125µm multimode gradient ber. This kind of connection provides several advantages: - large antenna cable distances (up to 2000 mtrs.) - no destructive overvoltage via the antenna cable - no unintentional monitoring via optical ber The receiver-side module GOAL/R is supplied with power via the antenna input connector of the GPS receiver, therefore no external power supply is necessary. The module GOAL/A needs an external supply for operating and feeding the GPS antenna. Whenever the antenna is not connected, or a short circuit occurs on the antenna cable, this is shown by a status LED in the front panel. A second status LED shows that the 10MHz reference clock, coming from the GOAL/R, is received within a su cient signal strength and therefore the FO link is working. The GOAL system is suitable for all Meinberg GPS receivers (except GPS166!), also for the later extension of existing systems. When using the GOAL system together with the GPS signal converter GPSGEN1575 it is to be noted that operation of connected GPS receivers from third-party manufacturers can not be guaranteed! Physical Dimensions: GOAL/A: 44mm x 105mm x 165mm (height x width x depth) GOAL/R: 25mm x 25mm x 95mm (height x width x depth) 10 Date: 26th November 2015 GPS Antenna Konformitätserklärung Declaration of Conformity Doc ID: GPSANT-02092014 Hersteller Manufacturer Meinberg Funkuhren GmbH & Co. KG Lange Wand 9 D-31812 Bad Pyrmont erklärt in alleiniger Verantwortung, daß das Produkt declares under its sole responsibility, that the product Produktbezeichnung GPSANT Product Designation auf das sich diese Erklärung bezieht, mit den folgenden Normen übereinstimmt to which this declaration relates is in conformity with the following standards EN55022:2010, Class B Limits and methods of measurement of radio interference characteristics of information technology equipment EN55024:2010 Limits and methods of measurement of Immunity characteristics of information technology equipment EN 50581:2012 Technical documentation for the assessment of electrical and electronic products with respect to the restriction of hazardous substances gemäß den Richtlinien 2004/108/EG (Elektromagnetische Verträglichkeit), 2006/95/EG (Niederspannungsrichtlinie), 2011/65/EU (Beschränkung der Verwendung bestimmter gefährlicher Stoffe) und 93/68/EWG (CE Kennzeichnung) sowie deren Ergänzungen. following the provisions of the directives 2004/108/EC (electromagnetic compatibility), 2006/95/EC (low voltage directive), 2011/65/EU (restriction of the use of certain hazardous substances) and 93/68/EEC (CE marking) and its amendments. Bad Pyrmont, den 02.09.2014
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