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USER'S GUIDE____________________________________________________________________

16 __________________________________________________________________ M210843EN-C

Connecting Cables

The antenna set is delivered with all the cables connected. It is
recommended to store the CG31 with the cables connected.

0705-202

Figure 12

CG31 Cabling

The following numbers refer to Figure 12:

1 = Cable

holder

2 = Cable

guide

3 = OUT

connector

4 = ANT1

connector

5

=

Connector in the Helix UHF antenna

6

=

Arm of the GPS antenna

7

=

Connector in the GPS antenna

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Содержание CG31

Страница 1: ...USER S GUIDE Vaisala Portable Antenna Set CG31 M210843EN C ...

Страница 2: ...mechanical including photocopying nor may its contents be communicated to a third party without prior written permission of the copyright holder The contents are subject to change without prior notice Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user All legally binding commitments and agreements are included exclusively in...

Страница 3: ...mation 3 General Safety Considerations 4 Feedback 4 Product Related Safety Precautions 4 ESD Protection 5 Recycling 5 Warranty 5 Technical Support 6 CHAPTER 2 PRODUCT OVERVIEW 7 Introduction to Portable Antenna Set CG31 7 Antenna Assembly 8 CHAPTER 3 INSTALLATION 9 Selecting Location 9 Assembling the Antenna Set 10 Connecting Cables 16 Disassembly for Transportation 19 Maintenance 21 CHAPTER 4 TEC...

Страница 4: ...USER S GUIDE____________________________________________________________________ 2 ___________________________________________________________________ M210843EN C This page intentionally left blank ...

Страница 5: ...s manual consists of the following chapters Chapter 1 General Information provides general notes for the manual and the product Chapter 2 Product Overview introduces the features advantages and the product nomenclature Chapter 3 Installation instructs you in installing the antenna set Chapter 4 Technical specifications provides the technical data of the antenna set Chapter 5 Parts list contains th...

Страница 6: ...ctions carefully at this point the product could be damaged or important data could be lost NOTE Note highlights important information on using the product Feedback Vaisala Customer Documentation Team welcomes your comments and suggestions on the quality and usefulness of this publication If you find errors or have other suggestions for improvement please indicate the chapter section and page numb...

Страница 7: ...nd yourself to the equipment chassis before touching the boards Ground yourself with a wrist strap and a resistive connection cord When neither of the above is possible touch a conductive part of the equipment chassis with your other hand before touching the boards Always hold the boards by the edges and avoid touching the component contacts Recycling Recycle all applicable material Dispose of bat...

Страница 8: ...ala com Fax 358 9 8949 2790 If the product needs repair please follow the instructions below to speed up the process and to avoid extra costs to you 1 Read the warranty information 2 Contact Vaisala technical support via e mail or fax and request for RMA Return Material Authorization and shipping instructions 3 Proceed as instructed by Vaisala technical support NOTE RMA must always be requested fr...

Страница 9: ...nna set consists of a Helix UHF antenna a GPS antenna and the Antenna Amplifier and Switch RAA111 on a tripod mount The coloring of the parts is adjusted for field operation conditions One person can transport and assemble the antenna set Portable Antenna Set CG31 receives radiosonde signals in 400 MHz meteorological range The antenna set can be used in conjunction with the Vaisala DigiCORA soundi...

Страница 10: ...____________________________________ M210843EN C Antenna Assembly The Portable Antenna Set CG31 consists of the following parts 0704 014 Figure 1 Antenna Set CG31 Assembly The following numbers refer to Figure 1 1 Helix UHF antenna 2 GPS antenna 3 Antenna Amplifier and Switch RAA111 4 Tripod 5 Antenna cable UHF GPS ...

Страница 11: ...nificant degree unless it is exceptionally dense or very close less than 20 meters from the antenna set Sparse forest can cause some attenuation but is usually not a real hindrance Other antenna masts and metal structures of small diameter do not disturb reception if situated more than 20 meters away from the antenna set However metal roofs or other large surfaces may reflect signals causing short...

Страница 12: ... antenna set is delivered with the Amplifier and Switch and the cable holder assembled If you disassemble these parts you must reassemble them to the exact locations in order for the antenna set to fit in the transport case The tripod legs contain small markings that indicate the location for the top edge of the parts 0704 015 Figure 2 CG31 Finger Nuts Peg Hole and Cable Holder The following numbe...

Страница 13: ...____________________________________________ 11 1 Take the tripod out of the transport case and place the tripod in an upright position 2 Remove the strap that holds the tripod legs together 0705 194 Figure 3 Removing the Strap 3 Loosen the locking ring with the finger nut 0705 195 Figure 4 Finger Nut for the Locking Ring ...

Страница 14: ...0843EN C 4 Spread the tripod legs and push the locking ring all the way down to the end of the bar The support bars should be horizontal 0705 196 Figure 5 Locking Ring Pushed to the End of the Bar 5 Lock the locking ring by tightening the finger nut 0705 197 Figure 6 Locking the Locking Ring CAUTION Be careful not to pinch the cables during installation ...

Страница 15: ... the finger nuts Visually check that the antenna set is standing straight 0705 198 Figure 7 Adjusting the Legs NOTE The higher the antenna is the better the reception 7 If the ground is soft attach the foot pads number 3 in Figure 8 under the legs to prevent the tripod from sinking Insert a peg number 1 in Figure 8 through the hole number 2 in Figure 8 to the ground to secure the leg Repeat this f...

Страница 16: ...____________________ 14 __________________________________________________________________ M210843EN C 0311 049 Figure 8 Attaching Foot Pads 8 Lift the Helix UHF antenna up and lock it by tightening the finger nut 0705 199 Figure 9 Lifting the Helix UHF Antenna ...

Страница 17: ...re 10 Lifting the GPS Antenna 10 Check that all cables are connected If they are not connected refer to section Connecting Cables for more information 11 Connect the cables to the UHF and GPS antenna connectors in the sounding system 12 Wind any extra cable length on the cable holder on the tripod leg in the pattern of figure eight This will prevent the cable from becoming twisted and difficult to...

Страница 18: ...onnecting Cables The antenna set is delivered with all the cables connected It is recommended to store the CG31 with the cables connected 0705 202 Figure 12 CG31 Cabling The following numbers refer to Figure 12 1 Cable holder 2 Cable guide 3 OUT connector 4 ANT1 connector 5 Connector in the Helix UHF antenna 6 Arm of the GPS antenna 7 Connector in the GPS antenna ...

Страница 19: ...ing 1 Assemble the antenna set 2 Run the dual antenna cable from the cable holder to the guide on the tripod leg 3 Connect the UHF antenna cables Connect the UHF part of the dual antenna cable to the OUT connector in the Antenna Amplifier and Switch 0705 203 Figure 13 OUT Connector in the Antenna Amplifier and Switch Connect the UHF antenna cable to the ANT1 connector in the Antenna Amplifier and ...

Страница 20: ...ble to the guide on the tripod leg and through the hinge in the Helix UHF antenna Connect the end of the cable to the connector in the antenna 0705 205 Figure 15 Connecting the Cable to the Helix UHF Antenna 4 Connect the GPS antenna cable Run the GPS part of the dual antenna cable inside the arm of the GPS antenna 0705 206 Figure 16 Cable Inside the Arm of the GPS Antenna ...

Страница 21: ... them and put them in the tools bag 2 Disconnect the cables from the sounding system and wind the cable on the cable holder on the tripod leg in the pattern of figure eight This will prevent the cable from becoming twisted and difficult to handle NOTE Do not disconnect the cables to the antennas and the Amplifier and Switch It is recommended to store the CG31 with the cables connected 3 Loosen the...

Страница 22: ...843EN C 6 Fold the tripod legs together and attach the strap that holds the legs together 0704 016 Figure 18 CG31 Disassembled for Transportation 7 Place the antenna set in the transport case Legs pointing to the wheels of the transport case GPS antenna pointing upwards Refer to Figure 19 for the correct placement of the antenna set in the transport case ...

Страница 23: ...e 19 CG31 Packed for Transportation Maintenance Under normal conditions the CG31 needs only a minimal amount of maintenance Clean the antenna set regularly by removing excess dirt and dust Inspect the cables for breaks cracks in the protective coating or connectors and bent or damaged pins Replace broken cables when needed Lubricate the tripod attachment screw with grease once a year ...

Страница 24: ...USER S GUIDE____________________________________________________________________ 22 __________________________________________________________________ M210843EN C This page intentionally left blank ...

Страница 25: ...plifier Gain 20 dB typical Noise figure 2 dB Power input 10 12 VDC typically 130 mA through RF cable Output impedance Output impedance 50 ohms VSWR 1 5 GPS Antenna Module Primary power 5 volts DC 10 Power consumption 22 mA 0 11 watts nominal Output impedance 50 Ohms Frequency L1 1575 MHz Polarization Right Hand Circular Polarization RHCP VSWR 2 1 Axial Ratio 2 dB at zenith 10 dB above 10 elevation...

Страница 26: ...N C Property Value Total height assembled 1695 mm Transportation case dimensions 1380 x 355 x 385 mm Weight antenna set including case 10 5 kg 23 5 kg Standard cable length 20 m Environmental conditions Operating temperature range 40 55 C Operating humidity range 0 100 RH Operating precipitation Unlimited Storage temperature 50 71 C Storage humidity 0 100 RH ...

Страница 27: ...na Set CG31 Part no Item Quantity DRW220676 Tripod for CG31 1 DRW224063 Antenna Cable Dual UHF GPS 20m 1 DRW220836 GPS Antenna TNC green for CG31 1 RAA111 UHF Antenna Amplifier and Switch Green AN11 1 216425MW Helix Antenna Synergetics 15A N Green 285 1 DRW220872 Transport Case EPP for CG31 1 DRW220856 Antenna Cable 0 8m 1 QMY103M Set of Pegs and Pads with Bag 3 3 1 25926 Hammer 1 0 kg 1 QM40142 P...

Страница 28: ...USER S GUIDE____________________________________________________________________ 26 __________________________________________________________________ M210843EN C This page intentionally left blank ...

Страница 29: ...www vaisala com ...

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