Instruction Manual Video Transmitter CVT-M Video Receiver CVR-200 Contents © 1999, 2000 Coherent Communications, Inc., all rights reserved, rev 09/00 Printed in USA 1 What? Read the manual. You must be joking!!! OK, we know you’re in a hurry to get your neat new equipment on the air, so here’s how, see our Quick Start information on the next pages. Also PLEASE read the great installation & operation tips we’ve put in the Instruction Manual. 2 Contents SUBJECT PAGE 1. WHAT, Read the Manual? 2 2. FCC & Industry Canada Statements 4 3. CVR-200 Receiver Quick Start Instructions 5 4. CVT-M Transmitter Quick Start Instructions 6 5. Specifications: CVR-200 Receiver and CVT-M Transmitter 7 6. General Operating Instructions for CVT-M and CVR-200 8 7. Compatibility with other Coherent Wireless Products 9 8. Installation Tips---Antennas & Antenna Selection 9 9. Antenna Golden Rules 10 10. Antenna Orientation 12 11. Wiring Instructions CVT-M Transmitter 15 12. Wiring Instructions CVR-200 Receiver 16 13. Application Notes 1 -- Operating Distance 17 14. Application Notes 2 – Antenna Cable Specifications 18 15. Application Notes 3 -- Video Cable Specifications 19 16. Application Notes 4 – Link Margins and Range Calculations 20 17. Service & Calibration 22 18. Warranty Information and Safety Terms 23 19. Notes 24 3 FCC Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used according to 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 and correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Shielded cables and I/O cords must be used for this equipment to comply with the relevant FCC regulations. Changes or modifications not expressly approved in writing by Coherent Communications, Inc. may void the user’s authority to operate this equipment. Industry Canada Statement This device complies with RSS-210 of Industry Canada. 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. Thank you for purchasing our products. We hope that they will serve you well. 4 MINIATURE WIRELESS VIDEO RECEIVER Model CVR-200 0.93 in Rear 2.4 cm ON A B 6. Video Out 1 2 3 4 5 7. 12 VDC Power In 3.38 8. Antenna In Front in 1. Power On/Off Switch VIDEO RECEIVER 2.32 in / 5.9 cm 2. Signal Strength: GOOD 8.6 MODEL CVR-200 3. Signal Strength: OK cm 4. Signal Strength: POOR 5. Channel Selector Switch 1 2 Features: 6 7 8 • A truly small size for maximum flexibility and convenience • Extremely rugged and lightweight Aluminum enclosure; electronics use latest surface mounted technology for maximum reliability • Two switch selectable channels in 902-928 MHz band, US/Canada -- no license required • Works from a 9 Volt Alkaline battery for up to 6 hours • FM Video for highest quality picture and most resistance to interference • Wide power supply range from 7.6 to 14 VDC or AC Adapter. • Color coded side markers to distinguish between multiple Transmitter and Receiver sets. • Crystal referenced, synthesized PLL design for best frequency stability and reliability over temperature • Three section signal strength indicators are a real help in evaluating location, antenna position and range. The first light is green showing excellent to moderate signal strength. The next light is yellow, warning of a weaker signal. The red light means that the signal is probably not usable. Quick Start for CVR-200 1. Connect Antenna to BNC Jack marked “Antenna” 2. Plug in 12 VDC Power Supply to jack marked “12 VDC In” 3. Plug a 75 Ohm video cable into BNC Jack marked “Video Out”. Connect other end to a Video monitor, VCR, or any standard composite 1 V p-p Video input. 4. Turn on CVR-200. If the channel is clear, only a random “snow” will appear on the monitor. If you see any kind of pattern, lines, flashes, etc. there is interference. In this case, switch Channel selector to the alternate channel and check it. If interference appears on both channels, use the one with the least disturbance to the picture. 5. Once the Transmitter is on, an initial range check can be made without the monitor by observing the signal strength lights. Green is best, yellow is OK and Red is weak. 6. The Receiver's channel selector switch is on the bottom. Verify that the Transmitter and Receiver are switched to the same channel. 5 MATCHBOX WIRELESS VIDEO TRANSMITTER Model CVT-M ACTUAL SIZE! 0.6 in Front 1.4 cm 1. Channel Selector 2. Power & Video input jack 1.8 3 4 5 6 in VIDEO 1.5 in -- 3.9 cm Rear TRANSMITTER 4.7 MODEL CVT-M 3. Power On/Off cm 4. Power On Indicator 5. Low Battery Indicator 6. Antenna Connector 1 2 Features: • A truly tiny size for maximum flexibility in placement & concealment—may be body worn, put in helmet, etc. • Extremely rugged and lightweight Aluminum enclosure, all surface mounted parts for maximum reliability • Two switch selectable channels in 902-928 MHz band, US / Canadian approved power levels -- no license required • Higher powered export model available between 900 and 1300 MHz • Works from a 9 Volt Alkaline battery for up to 8 hours (not including camera) • FM Video for highest quality picture and most resistance to interference • Wide power supply range from 7.6 to 14 VDC or AC Adapter. • Color-coded side markers to distinguish between multiple Transmitter and Receiver sets. • Crystal referenced, synthesized PLL design for best frequency stability and reliability over temperature Quick Start for CVT-M 1. Push Antenna and its miniature plug into the jack marked “ANT.” It will click when seated. 2. Push black Power and Video connector into jack at bottom of Transmitter marked “Power/Video”. Note key way on plug and match on jack before pushing. Push firmly and it will click in place. To remove, pull firmly on plug, NOT on wires. 3. Plug 9 V battery into holder or plug power cable into appropriate source of 7.6 to 14 VDC. 4. Turn On/Off switch to ON position. Red LED will light. 5. When battery falls below operating range, the yellow LED will light. NOTE: If you are using the CVT-M with a miniature CCTV (board) camera, the camera will only operate to about 8.5 VDC, so battery life will be short, about 1 hour. The CVT-M operates from 7.6 to 14 VDC. You may wire in a 12 V supply if desired for testing. 6. The channel selector switch is on the bottom. Verify that the Transmitter and Receiver are switched to the same channel. 7. Mount Transmitter to Camera with Velcro tape if desired. 6 8. SPECIFICATIONS CVR-200 RECEIVER SPECIFICATIONS Operating Distance: 1000 ft (305m) line of sight with supplied antennas. May be more or less depending on conditions, antennas used, elevation, etc. For greater range (1 to 2 miles), see price list for high gain Yagi antennas. Operating Frequency: 902-928 MHz. An Export model will be available to 1300 MHz, greatly increasing the number of available channels. Frequency stability: (-20ºC to +60ºC, -4ºF to +131ºF) ±0.005% Receiver sensitivity: Usable picture to approximately -83 dBm Video System: (with CVT-1000 Transmitter at -40 dBm RF in) NTSC or PAL, automatic selection Video level 1.0 Volt p-p into 75 Ohms Video bandwidth 10Hz - 4.2MHz ± 1dB typical, 10 Hz to 5.5 MHz +1, -3 dB Differential Gain at -40 dBm RF input <5 % Differential Phase at -40 dBm RF input <8º Signal to noise ratio -40 dBm RF input 55 dB weighted 3 dB Voltage & Current consumption. 7.6 to 14 VDC, 80 mA at 12 VDC Mechanical Size 3.38 L x 2.32 W x 0.93 H in. (8.6 x 5.9 x 2.4 cm) Weight 0.27 LB (121 g) Antenna connector 50 Ohm BNC Video Connector 75 Ohm BNC Power connector 5.5 x 2.5 mm Coaxial jack Environmental Operating temperature -20ºC to +60ºC (-4ºF to +131ºF) Storage temperature -40ºC to +70ºC (-40ºF to + 158ºF) Humidity range (non-condensing) 5 to 90% CVT-M TRANSMITTER SPECIFICATIONS Operating Distance: 1000 ft (305m) line of sight (US / Canadian version). May be more or less depending on conditions, antennas used, elevation, etc. To extend range, see our price list for high gain Yagi antennas. Higher power Government & Export version will have considerably more range. Operating Frequency: 902-928 MHz. An Export model will be available to 1300 MHz, greatly increasing the number of available channels. Transmitter Type: FM, Crystal referenced, synthesized phase locked loop, Deviation is ±3 MHz nominal, but may be adjusted. RF Power Out: Per FCC 15.249 Frequency stability: (-20ºC to +60ºC, -4ºF to +131ºF) ±0.005% Video System: (with CVR-1000 Receiver) NTSC or PAL, automatic selection Video level 1.0 Volt p-p into 75 Ohms Video bandwidth 10Hz - 4.2MHz ± 1dB typical, 10 Hz to 5.5 MHz +1, -3 dB Voltage & Current consumption: 7.6 to 14 VDC, 45 mA at 12 VDC Mechanical: Size 1.5W x 1.8L x 0.6D in (3.9 x 4.7 x 1.4 cm) Weight 2 oz.