Japan Radio NTG420 Solid State Transmitter-Receiver User Manual Usera manual Installation
Japan Radio Co Ltd. Solid State Transmitter-Receiver Usera manual Installation
Contents
- 1. Usera manual(Installation)
- 2. Users manual(Operation)
Usera manual(Installation)
7ZPRR0001 INSTALLATION MANUAL FOR THE NTG-420 SOLID STATE TRANSMITTER-RECEIVER Document No. 7ZPRR0001 APR. 2016 7ZPRR0001 Table of Contents 1. SELECTING THE INSTALLATION POSITION .................................................................. 2 2. INSTALLATION PROCEDURE.......................................................................................... 7 3. CONNECTING THE INSTALLATION CABLE ................................................................. 10 4. INSTALLATION OF SOLID STATE TRANSMITTER-RECEIVER (NTG-420) .................. 12 5. SOLID STATE TRANSMITTER-RECEIVER(NTG-420) WIRING ..................................... 13 6. INSTALLATION CABLE AND WAVEGUIDE ................................................................... 17 APPENDIX .......................................................................................................................... 20 MAXIMUM PERMISSIBLE EXPOSURE(MPE) CALCULATION.......................................... 29 FCC CAUTION .................................................................................................................... 31 IC (INDUTRY CANADA) ...................................................................................................... 31 7ZPRR0001 - Preface This instruction manual describes installation method of the NTG-420 Transmitter-Receiver. This manual describes radar system configuration with X-band Radar Antenna and NCD-2247-1B PC type radar monitor display as an example. 1. Selecting the installation position 1) Physical selection criteria • Install the antenna at the center of the mast on the keel line. • If the antenna cannot be installed at the above position for some reason, the amount of deviation must be minimized. And, reinforce the mount base and the platform and take precautions to protect the antenna from vibration and impact at the installation position. • To avoid the radiating section coming in contact with other installed objects while it is rotating, ensure that there is at least 200 millimeters from the swing circle (turning radius) to other installed objects (Fig.1-1). The swing circle of the X-band Radar Antenna is as shown in Table 1-1. Over 200mm 200mm 以上 min-offset オフセット最小 min-height 必要最小高さ reinforcing member 補強材 Fig.1-1 Installation of antenna Table 1-1 Swing circle Antenna Swing circle X-band Radar Antenna 2825mm 7ZPRR0001 • Avoid having a rope or signal flag from winding around the radiating section thereby preventing it from rotating. • Avoid the effects of dust and heat caused by smoke from a chimney. • When determining the appropriate antenna height and installation location, take into consideration the reduction of vibration, the strength of the hull and the antenna mount base, and maintenance properties. • Provide for maintenance space: platform, safety link, hand rail, steps, etc. The lower edge of a radar antenna should be a minimum of 500 mm above any safety rail. • When installing the antenna, select a location where there are the fewest structural objects in the surrounding area so that the capability to drive the motor will not be depressed by the non-equability wind which is likely to rotate the antenna. 2) Electrical selection criteria • The installation height of the antenna relates to the maximum detection distance. The higher is the better. (However, if it is too high, radio wave energy greatly attenuates above the antenna's vertical beam width (the point -3dB from the peak of the main lobe). As a result, it is difficult to detect a close-in target. Sea clutter also increases. Determine the installation height by taking into consideration the weight, maximum length of the cable, and maintenance after installation. • If the installation height of the antenna is low, it is difficult to detect a long distance target. The ship's mast, derrick, and construction objects interfere with radiating beam causing the range that cannot be viewed on the radar display to increase. Generally, the lowest antenna installation position is supposed to be on the A-B line shown in Fig.1-2. In the case of the radar antenna, 2θ equals 20°. Specifically, the antenna position is normally elevated so that the building etc do not interfere with radiating beam. The inside of A point might be blind area due to antenna beam does not propagation. So, if near distance should be covered, antenna installation position must be considered carefully. θ = 10° Sea surface θ Building etc. Blind area Fig.1-2 Antenna installation height vs Vertical beam width 7ZPRR0001 • If it is considered that sufficient installation height cannot be provided when the antenna is installed directly on the roof of the building, use a mounting rack or radar mast (Fig.1-3). Normally, when the antenna installation height is less than 2 meters from the roof of the building, provide a mounting rack assembled at an angle frame to install the antenna. When the antenna installation height is 2 meters or higher from the roof of the building, provide a cylindrical radar mast to install the antenna. Consider the convenience of the service staff who take care of installation, maintenance, adjustment, and repair of the antenna by providing adequate footholds to the mounting rack and the radar mast. Installation Installation Fig.1-3 Mounting rack and mast for the antenna • When installing the antenna, select a location where there are the fewest structural objects in the surrounding area so that false images which interfere with target detection will not be generated by signal reflection from other antennas, equipments, and cargos. Only as a guide, note that structural objects should not exist within the range of the vertical beam width (Fig.1-4). Vertical beam width of X-band Radar Antenna: Approx. 20° (±10.0° when the height of the radiating section is 0°). ビーム幅 Beam width Fig.1-4 Antenna and the surrounding structural objects 7ZPRR0001 1m (min) • When installing two or more antennas, antennas in close proximity should have a minimum vertical elevation separation angle of 20 and a minimum vertical separation of 1m where possible, so that those antennas do not enter each other's vertical beam width range. 20°(min) Fig.1-5 Installing two or more antennas • To avoid interference with other equipment and to prevent radio noise from generating, do not place the VHF antenna, AIS/GPS antenna, and VSAT/INMARSAT's dome within the range of the vertical beam width. If there is a concern that structural objects existing within the vertical beam width may generate false images, equip the structural objects with a radio wave absorber. (There are two types of absorbers: broadband type having no specific resonant frequency and narrowband type which can absorb a band with a specific frequency. Use those where applicable.) Furthermore, it is effective to install a metal reflector, which reflects radio waves upwardly, between the antenna and a structural object so that the radar's radio wave will not directly come in contact with the structural object. When the structural objects exist in the surrounding area of Antenna unit, the false echo may appear. The sector blank function is effective to reduce the signal reflection from the structural objects. Because of it can stop transmission. Therefore, it may reduce the false echo appearance. Note: Because most radio wave absorbers have poor durability, some must be replaced every year. When installing a reflector, the area to the rear of the reflector becomes a blind sector. Therefore, minimize the size of the reflector. When the sector blank function set to on, ensure a sufficient view field in the surveillance area. * The above procedures for selecting an antenna installation position are described based on the radar's antenna. Comprehensively select the antenna position by considering other antennas' installation procedure manual, building tower mast structure, strength of the selected position, and vibration. 3) Confirmation during test run 7ZPRR0001 If the antenna vibrates a lot during test run, try to reduce or prevent vibration by reinforcing the antenna mount base or using wire stays attached to the radar mast. 4) Others • The design of the mounting platform for the antenna should take into account the vibration requirements defined by IEC 60945. Vibration Frequency 2 to 13.2Hz 13.2 to 100Hz Amplitude +/-1mm +/-10% Acceleration 7m/s2 constant • All installations should facilitate protection of equipment, including cabling, from damage. The cables should be kept as short as possible to minimize attenuation of the signal. • Crossing of cables should be done at right angles(90°) to minimize magnetic field coupling. • Eliminating the interference on frequencies used for marine communications due to operation of the radar. All cables of the radar are to be run away from the cables of radio equipment. (ex. Radiotelephone. Communications receiver and direction finder, etc.) Especially inter-wiring cables between antenna unit and display unit of the radar should not be run parallel with the cables of radio equipment. • Cable should not be exposed sharp bends. • The grounding of equipment units should be carried out according to this manual. 5) After installation After you have completed the installation work, check and test the installation work with customer(s) and confirm with each other. 7ZPRR0001 2. Installation procedure 1) Precautions for transporting and storing the antenna • An antenna is a heavy load. Be very careful about handling it. • Do not allow the antenna fall on its side while it is stored or being installed. • Do not apply rope to the antenna in the way that squeezes or deforms the radiating section. • When hoisting the antenna by a crane, do not hoist it by attaching a belt or a rope only to the antenna's radiating section as shown in Fig.2-1. • When lifting the antenna(Fig.2-2): Wrap a cloth around the antenna's support section located at the bottom of the radiator, and then attach a belt to it to lift the antenna. Fig.2-1 Improper way to hoist Wrap a cloth Fig.2-2 Lifting the Antenna 2) Installation procedures a) Maintain a flat level surface on which to install the antenna. • Use sufficiently thick steel material and reinforcement material for the antenna's installation surface (mount base) to reduce vibration and impact. Keep the mount base flat and smooth. • If there is a partial gap between the mount base and the antenna chassis's legs, work on the installation surface so that it becomes flat and smooth. If a gap exists and the antenna is tightly clamped, the chassis will distort and become damaged by vibration. 7ZPRR0001 b) Avoid using vibration-proof rubber and resin • Do not insert an elastic body, such as vibration-proof rubber or resin, between the mount base and the antenna chassis' legs. If rubber or resin is inserted, the amplitude of vibration increases, resulting in the possibility of damage to the antenna. Furthermore, if installation bolts become loose due to deterioration of rubber or resin, the antenna may be damaged or fall from its mount. 3) Installation and clamping method a) Installation direction • Installation should be done so that the cable gland side is oriented accessibility by maintenance staffs. b) Bolts, nuts and tightening torque to be used • Use stainless steel bolts for the antenna and uniformly tighten all of the bolts using double nuts for each bolt so that the antenna will not become loose (Table 2-1). • Although the length of the bolt will differ according to the thickness of the mount base, use a bolt long enough so that more than 4 millimeters of thread protrudes beyond the double nuts after the double nuts have been tightened. Table 2-1 Length of antenna mounting bolts and tightening torque Antenna Unit Thickness of Mount Base (mm) Bolt Torque (N-m) 12 M10×55(mm) SUS304 40 c) Use of washer and corrosion-resistant measures • At the location where a bolt's head or nut comes in contact with the antenna chassis' legs and the mount base, insert a plain washer which fits the bolt; and, at the location where the nut comes in contact with the plain washer, insert a spring washer, and then securely tighten the nuts (Fig.2-3). • To prevent corrosion due to the contacts between different metals, such as the antenna chassis' legs, installation surface, bolts, nuts, etc., cover the bolt's head and nuts with sealant (Fig.2-3). 7ZPRR0001 Fig.2-3 Use of washer and corrosion-resistant measures d) Grounding and corrosion-resistant measures • Ground the antenna chassis and the installation surface (hull) by using an earth line. Apply sealant to the connection portion of the earth line to prevent corrosion and damage by vibration (Fig.2-4). Fig.2-4 Grounding and corrosion-resistant measures 7ZPRR0001 3. Connecting the installation cable 10 7ZPRR0001 11 7ZPRR0001 4. Installation of Solid State Transmitter-Receiver (NTG-420) The mounting place of NTG-420 Solid State Transmitter-Receiver is shown below. It is required to secure a space for equipment and maintenance. Min. 250 Min. 400 Min. 250 Waveguide Min. 370 Fig.4-1 NTG-420 Installation (Space for Mounting Place) 12 7ZPRR0001 5. Solid State Transmitter-Receiver(NTG-420) Wiring Table 5-1 Connect Terminal of NTG-420 Terminal No. Waveguide flange(UG-51/U) P1 P2 Not Used for this System P3 Not Used for this System P4 RJ-45JJ Optical Communication Board (AGM-741 daughter board ) Earth Point Connect X-band 9ft Antenna Cable DC Power Supply (DC 48V) External Equipment (ex. Radar Data Processor) External Equipment (ex. Radar Data Processor) X-band Radar Antenna NCD-2247—1B Radar Control/Monitoring PC NCE-5584-1B IQ Data Recording PC Earth line WRJ-9 Waveguide) Power Cable RE-422 cable or equivalent 14-core shield composite cable(2695110056). 14-core shield composite cable(2695110056) or equivalent LAN cable Cat.6a Optical Cable 2C IV-5.5 or equivalent PS I/F Circuit ANT I/F Circuit NFB Connector Board Cable Clamp Earth Point (Chassis) Optical Fiber Cable inlet (See below) Fig.5-1 Inside View of NTG-420 13 7ZPRR0001 Table 5-1 Signal Layout of each Terminal Table 5-1 (1) P1 Pin No. Pin Name +48V +48V RTN GND In/Out In In Description +48V +48V Return Ground Table 5-1 (2) P2 Pin No. Pin Name MNT-TX-P MNT-TX-N MNT-RX-P MNT-RX-N MNT E NC NC NC NC In/Out Out Out In In In/Out Description Maintenance Port RS-422 output-P Maintenance Port RS-422 output-N Maintenance Port RS-422 input-P Maintenance Port RS-422 input-N Shield (Ground) Reserved Reserved Reserved Table 5-1 (3) P3 Pin No. Pin Name VD VD_E TRIG TRIG_E BP BPE BZ BZE NMEA_P 10 NMEA_N 11 NMEA_E 12 NC 13 NC 14 NC 15 SHIELD In/Out Out Out Out Out Out Out Out Out In/Out In/Out In/Out Description Radar Video Signal Radar Video Signal Return Radar Trigger Signal Radar Trigger Signal Return Antenna Bearing Pulse Signal Antenna Bearing Pulse Signal Bearing Reference Signal Bearing Reference Signal Return Control/Monitoring Signal(RS-485)-P Control/Monitoring Signal(RS-485)-N Return Reserved Reserved Reserved Table 5-1 (4) P4 Pin No. Pin Name SAF SW2 SAF SW+ ΦZ ΦZE ΦA ΦAE ΦB ΦAE NC 10 NC 11 NC In/Out In In In In In In In In Description Antenna Safety Switch Return Antenna Safety Switch Signal Antenna Bearing Pulse (ΦZ-Phase) Return Antenna Bearing Pulse (ΦA-Phase) Return Antenna Bearing Pulse (ΦB-Phase) Return Reserved Reserved Reserved 14 7ZPRR0001 12 13 14 15 +12V ISO +12V RET NC SHIELD Out Out 15 +12V Antenna Encoder Power Return Reserved 7ZPRR0001 Flange (M4 x 4) Waveguide inlet for NTG-420 (UG-51/U) Fig. 5-2 Waveguide Flange (UG-51U) of NTG-420 16 7ZPRR0001 6. Installation Cable and Waveguide 6.1 CM14CXVBTBTV(2695110056) This is composite cable of 14 wires with shielded coaxial cable. This cable is using between Antenna and TRX. Also, equivalent cable can be used which is provided by customer. Fig.6-1 CM14CXVBTBTV(2695110056) Component Table 6-1 CM14CXVBTBTV(2695110056) material Core (No.) 10 11 12 13 14 Cross Section No. of wire / φ (m2) 0.5 0.5 0.5 0.5 5.5 5.5 5.5 0.3 0.3 1.25 1.25 0.5 19 / 0.18 19 / 0.18 19 / 0.18 19 / 0.18 35 / 0.45 35 / 0.45 35 / 0.45 12 / 0.18 12 / 0.18 37 / 0.26 37 / 0.26 50 / 0.18 50 / 0.18 1 / 0.18 Color Black 1 Black 2 Black 3 Black 4 Yellow Green Brown White Orange Red Blue Black Purple Gray Max. diameter: 23.0mm 17 Remarks Coaxial Cable Coaxial Cable Coaxial Cable Coaxial Cable Twisted pair cable with Shield sheath white Shield wire 7ZPRR0001 6.2 Waveguide and Cable Installation Fig.6-2 Waveguide and Cable Installation Diagram for NTG-420 with peripheral equipment 18 7ZPRR0001 (No.) Table 6-2 Waveguide Materials List (for Example) WAVEGUIDE Flange A Flange B ① Tapered Transit Waveguide (Flat): UG-51/U (Choke) : No.185BC (Choke) : No.185BC ② Flexible Waveguide ANDREW Model :Elliptical Waveguide Type:EW85 Frequency Range : 7.7-9.8GHz ③ Tapered Transit Waveguide (Flat): UG-39/U Remarks (Flat) : UG-39/U (Choke) : UG-52B/U Notes: For detailed assembling method, please contact waveguide manufacturer(s) including required special tools and materials 19 7ZPRR0001 APPENDIX Drawing OUTLINE DRAWING X-BAND RADAR ANTENNA NTG-420 X-BAND SOLID STATE TRANSMITTER-RECEIVER BLOCK DIAGRAM X-BAND RADAR ANTENNA NTG-420 X-BAND SOLID STATE TRANSMITTER-RECEIVER WIRING DIAGRAM INTERCONNECTION FOR NTG-420 X-BAND SOLID STATE TRANSMITTER-RECEIVER (REFERENCE) WAVEGUIDE CATALOGUE 20 7ZPRR0001 Outline Drawing of X-band Radar Antenna Note: Performance Monitor does not included in this system. 21 7ZPRR0001 Outline Drawing of NTG-420 X-Band Solid State Transmitter-Receiver 22 7ZPRR0001 Block Diagram of X-band Radar Antenna Slotted Array Antenna Turning Unit Motor Driver Rotary Joint Motor Encorder Safety Switch AC100/110 or 220/230V 50/60, 1Φ Status Error RF Inlet 23 Bearing Output(ΦA,ΦB,ΦZ) 24 LC Type connector +12V ISO Safety Switch Bearing Signal in DC48V in Trig. Video out RS-485 Cont RS-422 Cont Bearing Signal out Radar Data LAN PS circuit Buffer PS I/F Circuit Optical Fiber Cable Signal Distribution Circuit ANT I/F Circuit Signal Processor Waveform Gen. Optical Communication Board (AGM-741 daughter board ) D/A MPU RJ-45 S/P Circuit A/D D/A RX IF TX IF AMP AMP MIX LNA LOC OSC LIM SSPA TRX Module STC ATT TX MON RF BPF CIR Transducer Microwave Component Circuit 7ZPRR0001 Block Diagram of NTG-420 X-Band Solid State Transmitter-Receiver RF Inlet 7ZPRR0001 Interconnection for NTG-420 X-Band Solid State Transmitter-Receiver (Reference) (Confirm the antenna motor power before installation) For Antenna Motor AC100/110V or 220/230V Provided by User (5.5sq or more) Terminal Board NFB YEL GRN Cable CM14CXVBTBTV (2695110056) Transmitter Receiver NTG-420 NC P2 (D-SUB 9P) 1 MNT_TX_N 2 MNT_TX_P JRC Standard X-Band Radar Antenna 3 MNT_RX_P 4 MNT_RX_N NC MNT_E FG P3 (D-SUB 15S) VD VD_E TRIG TRIG_E BP BPE P4 (D-SUB 15P) BZ BZE NMEA_P 10 NMEA_N NMEA_E 15 SHIELD Radar Control/Monitoring PC display NCD-2247-1B SEF SW- 12 BLK SAF SW+ 13 PUR ΦZ ΦZE TB103 +12V ΦA SAF SW- ΦAE 10 ΦZE ΦB 11 ΦBE 12 NC 10 NC 11 NC 15 ΦZ ΦA Optical Comm. Board (APX-741A-1) 48V DC PS DC+48V +48V_RTN Optical Fiber Cable Optical Comm. Board (AGM-741) PTI NC PTE NC LVR NC PMS 16 NC NC TXI NC TXE SAF SW+ NC VERR1 NC 10 Waveguide WRJ-9 or equivalent Flange UG-52B/U GND AC 25 ΦB P1 (JR13PK-3P(71)) +48V 2 +48V_RTN 10 ORG WHT Signal Processor Board (CDC1469) IQ Data Recording PC (NCE-5584-1B) FG FG LAN cable Cat.6a PCI-ex TB104 SHIELD LAN NC NC RJ-45 J2 RJ-45JJ 12 +12V ISO +12V 13 RET 14 NC Radar Data Relay Terminal Flange UG-51/U FG 7ZPRR0001 Waveguide Catalogue (1) Taper Waveguide Elliptical Waveguide Side Antenna Side 26 7ZPRR0001 (2) Elliptical Waveguide 27 7ZPRR0001 (3)Taper Waveguide Elliptical Waveguide Side Transmitter Side 28 7ZPRR0001 Maximum Permissible Exposure(MPE) Calculation The MPE was calculated with the antenna used as the highest antenna gain which may be used. Radiofrequency radiation exposure limits.(Frequency: 10MHz to 300GHz) Limits for Occupational/Controlled Exposure(mW/cm2)=5.00 Limits for General Population/Uncontrolled Exposure(mW/cm2)=1.00 NTG-420 Performance characteristics Antenna gain(dB)= Output Average Power(W)= Frequency(MHz) = Cable Loss(dB) = Calculated EIRP mW) = 38 Assumed 22feet Slotted Array Antenna 4.6 (dBm)= 9410 36.628 Assumed 10m Waveguide Lengh 23054613 73.628 (dBm) Power Density(SmW/cm2)=EIRP/4・π・r2 (r=cm) EIRP Distance mW cm 23054612.7 1500 23054612.7 1450 23054612.7 1355 23054612.7 1350 23054612.7 1300 23054612.7 1250 23054612.7 1200 23054612.7 1150 23054612.7 1100 23054612.7 1050 23054612.7 1000 23054612.7 950 23054612.7 900 23054612.7 850 23054612.7 800 23054612.7 750 23054612.7 700 23054612.7 650 23054612.7 610 23054612.7 550 23054612.7 500 23054612.7 450 23054612.7 400 Distance Feet 49.21 47.57 44.46 44.29 42.65 41.01 39.37 37.73 36.09 34.45 32.81 31.17 29.53 27.89 26.25 24.61 22.97 21.33 20.01 18.04 16.40 14.76 13.12 Power Density (S) mW/cm2 0.81539 0.87259 0.99924 General population 1.00665 1.08558 1.17416 1.27405 1.38724 1.51622 1.66406 1.83463 2.03283 2.26497 2.53928 2.86661 3.26156 3.74414 4.34232 4.93047 Occupational 6.06489 7.33851 9.05989 11.46643 29 7ZPRR0001 23054612.7 23054612.7 23054612.7 23054612.7 23054612.7 23054612.7 23054612.7 350 300 250 200 150 100 50 11.48 9.84 8.20 6.56 4.92 3.28 1.64 14.97656 20.38476 29.35405 45.86570 81.53903 183.46282 733.85127 Conclusion: Frequency 10MHz-300GHz General population Limit Minimum Distance(feet) Occupational Limit Minimum Distance(feet) 44.46 20.01 The NTG-420 is radar system for operating at the land based services. The radiating structure for the radar is typically mounted as following diagram. The radar system will satisfy the requirements of RF exposure per rule. Typical Installation of radar system 30 7ZPRR0001 FCC Caution Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: 1) Reorient or relocate the receiving antenna. 2) Increase the separation between the equipment and receiver. 3) Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. 4) Consult the dealer or an experienced radio/TV technician for help. This device complies with Part 80 and Part 90 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. IC (Indutry Canada) This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following two conditions: (1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : 1) l’appareil ne doit pas produire de brouillage; 2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. 31
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.5 Linearized : Yes Author : PC01 Create Date : 2016:08:01 13:32:48+09:00 Modify Date : 2016:08:01 13:32:58+09:00 Subject : Tagged PDF : Yes XMP Toolkit : Adobe XMP Core 5.6-c015 84.158975, 2016/02/13-02:40:29 Metadata Date : 2016:08:01 13:32:58+09:00 Creator Tool : Word 用 Acrobat PDFMaker 15 Document ID : uuid:4466fd10-da06-4126-af39-d26fa1d73bec Instance ID : uuid:392cdb9d-a5aa-458a-bceb-bb25999ed291 Format : application/pdf Title : Description : Creator : PC01 Producer : Adobe PDF Library 15.0 Keywords : Source Modified : D:20160801043159 Company : Nikkei Printing Inc. Page Layout : OneColumn Page Count : 32EXIF Metadata provided by EXIF.tools