Avalon RF TX600-18-23-30 Wireless Video and Audio Transmitter User Manual TX600 Series Manual Rev C2
Avalon RF Inc. Wireless Video and Audio Transmitter TX600 Series Manual Rev C2
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| Date Submitted | 2003-10-06 00:00:00 |
| Date Available | 2003-10-06 00:00:00 |
| Creation Date | 2003-10-01 20:07:34 |
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| Document Title | TX600 Series Manual Rev C2 |
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TX600/TX618/TX623/TX630 2.4GHz Video Transmitters User's Guide & Operating Manual AV030201/1-000 REV. C2 - 1 October 2003 FCC ID: Q7ITX600-18-23-30 Authored by Guru Mujumdar Prepared by Steve Jones http://www.avalonrf.com/ Avalon RF, Inc. • 344 Coogan Way • El Cajon, CA 92020 Phone: (619) 401-1969 • Fax: (619) 401-1971 • Email: sales@avalonrf.com AVALON RF, INC. TX600 Series User’s Guide & Operating Manual Page ii FCC INFORMATION FCC ID: Q7ITX600-18-23-30 This unit complies with Parts 74 & 90 of the FCC regulations. Maximum Permissible Exposure Any Wireless Equipment can pose health hazards if precaution is not exercised in its use/operation, especially its proximity to the human body. Excessive absorption of RF energy in the body is known to cause Cancer and/or other diseases. The FCC has issued guidelines to determine the safe distance of a transmitting antenna from the human body, to limit absorption to safe levels. Please follow the instructions given in this manual. WARNING: Refer to Table 4 in Section 3 (Operating the transmitter) to determine the MINIMUM DISTANCE the Transmitter with Antenna mounted, or the Antenna itself (if connected via coax to the transmitter), must be placed away from the body to minimize the health hazard. Also, note the Warning for TX630 after Table 4. User’s failure to comply with the instructions in this manual voids the site license granted. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 1. 2. 3. 4. Page iii Table of Contents General .................................................................................................1 Table 1 – Model/Output Power .............................................................1 Figure A – TX600 Series Controls and Connectors ..............................3 Video.....................................................................................................4 Audio.....................................................................................................4 Talk Back Audio Channel (Optional).....................................................4 Two Way Digital Data Link (DDL) (Optional) ........................................4 Motion Sensor Input (Optional) .............................................................4 Telemetry Input (Optional) ....................................................................5 RF Outputs............................................................................................5 Specifications ........................................................................................6 User Interface .......................................................................................6 Setup ....................................................................................................6 Electrical Interface ................................................................................7 Table 2 – Current Consumption............................................................7 Table 3 – Power Output ........................................................................8 Interconnecting .....................................................................................9 Figure B – DB 15 ..................................................................................9 Figure C – Power/Video......................................................................10 Figure D – Video .................................................................................10 Figure E – Audio .................................................................................10 Figure F – Data Input ..........................................................................11 Mounting .............................................................................................12 Mechanical Data .................................................................................13 Environmental Conditions ...................................................................14 Operating the transmitter. ...................................................................15 Operater Controls & Indicators ...........................................................15 General Guidelines .............................................................................16 Table 4 – Minimum Safe Distance ......................................................17 Ordering information ...........................................................................18 Base Models .......................................................................................18 Options ...............................................................................................19 Recommended Accessories ...............................................................20 Antennas .........................................................................................20 Table 5 – Permissible Antenna/Transmitter Model Combinations...21 Cables .............................................................................................22 Battery Packs ..................................................................................22 AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 1. Page 1 General The TX600 series rugged transmitters are intended for use in military, homeland security, mobile security, broadcasting and motion picture production. The TX600 Series is an FM modulated transmitter with a tuning range of 2.4GHz-2.483GHz and an optional extended range of 2.15GHz2.5GHz. The following table details the RF output power of the various models: Model Output Power TX600 1mW TX618 70mW TX623 200mW TX630 900mW Table 1 – Model/Output Power Each Transmitter is available with a choice of 2 types of End Connector’s: Suffix ‘B’ is Broadcast style and comes with LEMO connectors. Suffix ‘S’ is Security style and has only a DB15 connector. Refer to Figure ‘A’ for connector style. The type of connector is primarily a matter of preference for the user, with only 1 audio being a limitation of the ‘Security’ type. The Broadcast industry also prefers to use the LEMO connector for its robustness for connect-disconnect applications, typical to that industry. LEMO connectors are also expensive connectors. While ordering, please specify the desired style with the above suffix e.g. TX630B for LEMO connectors. All transmitters offer the following features: • A single broadcast quality video channel with no delay. • One/Two broadcast quality audio channels depending on model. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual Optional features (each ordered individually). • • • • Two-way Wireless Data Link (WDL) to a DX series receiver. Talk back audio channel. Alarm/Motion sensor interface. Telemetry inputs. Page 2 AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 10 Page 3 Top View Power Switch WDL Antenna Main Antenna Bottom View – Broadcast Power/Video Input – see Figure C Data Input – see Figures F Video Input – see Figure D Audio Input – see Figure E Bottom View – Security Power/Video Input – see Figure B Side Views Power LED Indicator Channel Select Dip Switch Figure A – TX600 Series Controls and Connectors AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 1.1 Page 4 Video. The video input is buffered, combined with the two audio subcarriers, then DC level restored, limited by a white level clipping circuit, preemphasized and FM modulates the transmitter RF carrier. Avalon RF offers the following video indices of modulation: • Industry standard frequency deviation of 4MHz. Compatible to GMS, Coherent and others. This option offers longer range at reference quality. • Wide frequency deviation of 6MHz. Compatible to Dynapix, Trango and others. This option offers broadcast quality but with slightly shorter range. 1.2 Audio. The two audio inputs are buffered and FM modulated on two subcarriers. The factory preset subcarrier frequency is 6MHz and 6.5MHz but may be programmed to any frequency from 5MHz to 7.5MHz. 1.3 Talk Back Audio Channel (optional). The talk back audio channel allows the camera operator (on the transmit side) to receive instructions from the operator at the receiver’s side. It drives an earpiece. 1.4 Two Way Wireless Digital Link (WDL) (optional). The WDL serves as a Pan-Tilt-Zoom (PTZ) / general-purpose twoway RS422/RS485 digital link. 1.5 Alarm/Motion Sensor Input (optional). The motion sensor option turns the transmitter on whenever a dry contact relay closes an external circuit and controls a remote relay in the receiver. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 1.6 Telemetry Inputs (optional). The telemetry input has 3 analog inputs. These inputs are sampled and transmitted out to the receiver through the WDL. 1.7 RF Outputs. The transmitters have two RF outputs (Only 1 for a standard unit, without WDL or Talk Back Audio Option). A female SMA connector for the main transmitter and a MCX for the WDL. Both outputs feed antennas, either directly or through a cable. Page 5 AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 2. Specifications 2.1 User Interface. Page 6 a) On/Off Switch. The TX600 series transmitter has an on/off switch. This shuts off power to the entire transmitter. b) Power on LED. This LED has the following states: i) Green when power in on. ii) Red when the transmitter is on air. c) Hands Free Back Channel (optional). This option allows the receiver operator to communicate with the transmitter operator via a headset that includes an earpiece and a microphone, when the transmitter is on air. 2.2 Setup. The TX600 series transmitters have the following setups: a) Video carrier frequency (2.4GHz to 2.483GHz(*)). b) Audio 1 sub-carrier frequency (5MHz to 6MHz). c) Audio 2 sub-carrier frequency (6MHz to 7.5MHz). (*) Option 04 extends the tuning range. See Section 4. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 2.3 Page 7 Electrical Interface. The transmitter has the following interfaces: 2.3.1 Power Input a) The transmitters operate off a 9Vdc-16Vdc unregulated voltage source. a) This input is switched and protected against reverse polarity. b) Typical power input current consumption for the basic configuration is (with video present): Model Input Current TX600/TX618 <200mA TX623 350mA TX630 450mA Table 2 – Current Consumption ‘Video Presence’ detection circuitry will turn off the power amplifier if no video is detected. This conserves power considerably and reduces the RF output by more than 30 dB (1000 times less), if no video is present. Addition of option 11 (WDL) will increase the current draw by a maximum of 170mA. 2.3.2 Video Input. a) The video input accepts RS170, CCIR, NTSC or PAL signals. b) Input voltage is 1Vp.p with a negative sync tip of 0.3V. c) The input impedance is 75 Ω (ohm). 2.3.3 Audio 1 and Audio 2 Inputs. The audio inputs accept signals of 1Vp.p. and have an input impedance of 600 Ω (ohm). 2.3.4 "Talk back" audio channel to the transmitter operator (optional). The “talk back” output drives an electromagnetic earpiece. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual Page 8 2.3.5 Two Way Wireless Digital Link (WDL) (Option 11) The WDL is a 9.6KBaud (standard, other Baud rates are supported) Half-Duplex RS485 compatible serial interface. 2.3.6 Main RF output to antenna. a) The main RF output connector is a 50 Ω (ohm) female SMA receptacle. b) The RF output power is as follows: Model Output Power TX600 1mW at VSWR of 1.5:1 TX618 70mW at VSWR of 1.5:1 TX623 200mW at VSWR of 1.5:1 TX630 900mW at VSWR of 1.5:1 Table 3 – Power Output 2.3.8 Wireless Digital Link (WDL) RF output. The WDL RF output is via a 50 Ω (ohm) MCX connector. Maximum output power is 10dbm. The main RF and the WDL RF outputs are identical on all the transmitter versions. 2.3.9 Alarm/Motion Sensor input (optional – Security Type Only). The Alarm/Motion Sensor input is an interface to a dry contact relay. Whenever the relay circuit is closed, the transmitter goes on air. 2.3.10 Telemetry inputs (optional). These analog inputs (3 on Security Type, 1 on Broadcast Type) have a 1M Ω (ohm) input impedance and a sampling rate of 500Hz. Resolution is 8 bit. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 2.4 Page 9 Interconnecting. All interfaces to/from the transmitter are available in one of the following connector configurations: 2.4.1 Security Type - DB15P connector with the following pin-out: Figure B – DB15 Pin # Function Power Input (+9Vdc to +16Vdc) Video Input Video Return Ground Audio 1 Input Microphone Input Microphone Bias Earpiece Output Power Return Ground Pin # 10 11 12 13 14 15 Function Signal Ground Telemetry 1 Input Alarm/Motion Sensor Input RS-485 I/O ‘A’ RS-485 I/O ‘B’ Telemetry 2 Input Telemetry 3 Input NOTE: This connector option allows for one audio input only, Audio 1 at 6.0 MHz (default factory set). AVALON RF, INC. TX600 Series User’s Guide & Operating Manual Page 10 2.4.2 Broadcast Type - multiple connectors. a) Power/Video Input. Pin Number Function Power Return Video Input Video Return Power Input Figure C – Power/Video b) Video Input. The video signal is input either through the video 75 Ω (ohm) SMB connector (Figure D) or the power connector (Figure C). Figure D – Video c) Audio Input. Pin Number Figure E – Audio Function Audio Return Audio 1 Input Audio 2 Input N/C N/C AVALON RF, INC. TX600 Series User’s Guide & Operating Manual Page 11 2.4.2 Broadcast Type - multiple connectors (continued). c) Data Input. Pin Number Figure F – Data Input Function Telemetry Microphone Input Speaker Output Microphone Bias Output RS-485 I/O ‘A’ RS-485 I/O ‘B’ Ground AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 2.5 Mechanical Page 12 2.5.1 Mounting. Mounting can be done in one of the following methods: a) Clamping. Clamping (or hard mounting) is the only method of mounting in all fixed installations. Clamping is the preferred method of mounting in all mobile installations where most electrical interfaces are used. This is due to the heat sinking needed and the weight of the connector’s and the cable’s. b) Clip on. Avalon RF offers a clip on kit. This method is recommended when only one or two interfaces are in use. Not practical for TX623 and TX630. c) Velcro® to a flat surface. Using Velcro® to secure the transmitter is recommended when only a few interfaces are in use. Not practical for TX623 and TX630. d) Drop-in. The transmitter can be dropped into a bucket mounted on the side of the video camera, like the ones usually found in ENG service. This can be done for the TX623 or TX630 only if adequate ventilation (for cooling) is available in the bucket and care is taken with other cables/equipment not being damaged from the transmitter heat. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 2.5.2 Mechanical Data. a) Size 3.07” x 1.73” x 1.0 (see Figure G) 78mm x 44mm x 25.4mm b) Weight <5.6 oz. <158 gram c) Shipping weight <32 oz. <900 gram Figure G – TX600 Series Mechanical Outline Page 13 AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 2.6 Environmental Conditions. Page 14 The TX600 Series is designed to meet the following environmental conditions: 2.6.1 Operating temperature -4° to 122° F -20° to 50° C 2.6.2 Storage temperature -13° to 150° F -25° to 65° C 2.6.3 Vibration 1.5G, from 10Hz to 2KHz, sine wave, 3 axis 2.6.4 Shock 15G, 25msec, half sine wave, three axis 2.6.5 Humidity 5 to 95%, non-condensing 2.6.6 Inclination Any 2.6.7 Altitude -1500 feet to 15,000 feet -450 meter to 4,500 meters AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 3. Page 15 Operating the transmitter. Before applying power, make sure all connectors and all antennas are hooked up. NOTE The transmitter will not transmit unless it has an antenna. 3.1 The transmitter has two operator controls and one indicator: a) Channel select. Units that have a manual synthesizer have a 4-position dip switch that selects a channel number (from 1 to 16). The preset channel numbers are defined by a label on the side wall of the transmitter. The user is advised to select a channel within the permissible frequency range to begin with, and if any interference is observed, switch over to another channel. b) On/Off switch. 3.2 The wireless data link is a secondary/utility link that is used to transfer data/voice in the reverse direction and some alarms/telemetry data in the forward direction. It is a narrow band UHF link operating at 473 MHz. Following are the characteristics: a) VOICE: Voice is transmitted from the receiver (DX side) to the Transmitter side (TX side). It is implemented as a VOX (voice operated transmit) and only the headset microphone is used on the DX side & only the earpiece is used on the TX side. The microphone is an electret mic. b) DATA: The data rate is 9.6KBaud fixed (other data rates supported) on a RS485 interface. c) TELEMETRY/ALARMS: This data is sent about 5-6 times a second. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 3.3 Page 16 General Guidelines The choice of a Transmitter and the Antenna to be used is dictated by power consumption, required distance of operation of the link, if it is a fixed or a mobile environment, the space constraints, the location itself (indoors or outdoors, presence of nearby objects like trees, bridges, etc.) and etc. Avalon RF will work with you to determine the right combination. Placement/positioning of the transmitter antenna is important for proper operation of the wireless video link. The antenna shipped with the unit is omni-directional, which means it will radiate in all directions and when upright (vertical) will be vertically polarized. The receiver side antenna’s then, must also be mounted vertically. While the above method would be the usual / most common way, certain applications need a different placement. As an example, to transmit between floors in a high rise building, the transmit & receive antennas can be small, directional, high gain panel antennas, mounted horizontally, directly ‘looking’ at each other. Circular polarized antennas are more expensive, but give a far better performance, especially in mobile applications. For proper operation of the wireless link, the transmitter antenna should be kept clear of metal objects, trees, buildings, etc. If the transmitter is mobile such as on a video camera, ensure the antenna is sufficiently clear of the operator’s body, especially the head. A 2.4 GHz link is a line-of-sight communications, which means the receive antennas should ‘see’ the transmit antenna. Another very important aspect relates to health hazards from RF energy absorption in the body. To minimize the risk, we ask that the user ENSURE the minimum distance of the transmitting antenna from the human body per Table 4. These values have been calculated per FCC Bulletin OET65, Supplement C & related documents. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual Minimum Distance from Body (in Inches) Model ! Antenna Gain " 0 dBi 3 dBi 10 dBi TX600/TX618 2” 3” 4” Distance TX623 3” 4” 8” TX630 ** 6” 9” 16” Table 4 – Minimum Safe Distance Page 17 27 dBi 48” 84” WARNING: ** An Antenna extender cable is shipped with the TX630, it is meant to hold the antenna at the minimum safe distance from the human body. This extender cable MUST be used whenever the TX630 is operated in a mobile environment (such as on a camera) and the user should mount the transmitter in a way that does not defeat the purpose of this cable. If the transmitter is mounted in a manner other than intended with the extender cable, it SHALL be the user’s responsibility to ensure the above minimum distance from ‘any’ human being. Avalon RF will help/advise you if necessary. Failure to comply with these instructions will void the grant of the site license under part 74 or part 90 (as the case may be). If the antenna you received is not one of the above, use the next higher distance or call/e-mail Avalon RF. Operating range will depend on the transmit and receive antennas used - a wide choice of antennas is available from Avalon RF. Please visit the website (www.avalonrf.com) for more details. For fixed installations, power saving can be achieved by turning off the video camera or the video source. A ‘video presence’ detection circuitry will turn off the power amp when no video is detected - power will be restored when the video signal is restored. Besides power conservation, it also eliminates high power RF transmission by reducing the output by about 30 dB (1000 times less) when no video is present. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 4. Ordering information 4.1 Base Models TX600 TX618 TX623 TX630 Page 18 2.4GHz-2.483GHz, FM modulated, O/P of 1mW 2.4GHz-2.483GHz, FM modulated, O/P of 70mW 2.4GHz-2.483GHz, FM modulated, O/P of 200mW 2.4GHz-2.483GHz, FM modulated, O/P of 900mW NOTE Models with 200mW and up are licensed to customers per FCC Part 74 and Part 90 or for export only. While ordering, please specify the desired connector style with the proper suffix e.g. TX630B for LEMO connectors. Suffix ‘B’ is Broadcast style and comes with LEMO connectors. Suffix ‘S’ is Security style and has only a DB15 connector. Refer to Figure ‘A’ for connector style. All units come with the following standard accessories: 4.1.1 Omni directional whip antenna 4.1.2 A 3-foot power cord with flying leads, to be connected to a customer specific battery pack. 4.1.3 User guide and operating manual (this manual). 4.1.4 A heavy-duty reusable carton. AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 4.2 Page 19 Options. 4.2.1 Option 01 – Remote programming. Requires option 11 4.2.2 Option 04 – Extended tuning range TX600 series – 2.150GHz to 2.5GHz This is ONLY the available range. User should indicate specific frequencies licensed to them in this band at the time of ordering. 4.2.3 Option 11 – Wireless Data Link (WDL) Includes an AX402 omni-directional whip antenna with MCX connector. 4.2.4 Option 31 – Talk back audio channel. Requires option 11. 4.2.5 Option 41 – Alarm/Motion Sensor input. Requires option 11. 4.2.6 Option 51 – Telemetry inputs (3 on Security Type, 1 on Broadcast Type). Requires option 11. 4.2.7 Option NM – Basic unit installed in an outdoor NEMA 4 box with an internal power and signal distribution panel. 4.2.8 Option SP – Basic unit installed in an outdoor NEMA 4 box with solar panel, charger and internal lead-acid battery AVALON RF, INC. TX600 Series User’s Guide & Operating Manual 4.3 Page 20 Recommended accessories. 4.3.1 Antennas The following is a list of antennas available from Avalon RF. Only certain antennas can be used with high power models like TX623 & TX630 to comply with FCC’s EIRP restrictions. Overseas customers must check local regulations for compliance before ordering. The choice of a particular antenna is dictated by transmitter power consumption, the application environment, physical size constraints, governing local regulations, etc. As a rule, the higher the antenna gain, the larger it’s size and narrower the beam width (the more directional the antenna). Omni-directional antennas for mobile application: Gain 0dbi 3dbi 3dbi 4dbi 6dbi 8dbi 10dbi 2.4GHz AX600 AX603CP AX603 AX604 AX606 AX608 AX610 Comments ¼ wave whip (needs ground plane) Circular polarized whip Linear polarized Linear polarized Linear polarized Linear polarized Linear polarized Directional antennas for fixed point-to-point applications: Gain 10dbi 13dbi 16dbi 24dbi 27dbi 2.4GHz AX610CP AX613CP AX616CP AX624PD AX627PD Comments Circular polarized panel Circular polarized panel Circular polarized panel Parabolic Dish Parabolic Dish AVALON RF, INC. TX600 Series User’s Guide & Operating Manual Page 21 The following table shows permissible Antennas that can be used with the different transmitters: Antenna AX600 AX603 AX603CP AX604 AX606 AX608 AX610 AX610CP AX613CP AX616CP Permissible for use with Model FCC Part 15 RSS210 FCC Part 90 (License Free) (Canada) (Licensed) TX600 Any TX6XX Any TX6XX TX600 TX618 Any TX6XX TX623 TX600 Any TX6XX TX618 TX623 TX600 TX618 Any TX6XX TX623 TX600 TX600 TX618 TX618 TX623 TX600 TX600 TX618 TX618 TX623 TX600 TX600 TX618 TX623 TX600 TX600 TX618 FCC Part 74 (Licensed) Any TX6XX Any TX6XX Any TX6XX Any TX6XX Any TX6XX Any TX6XX TX600 TX618 TX623 TX600 TX618 TX623 AX624PD* TX600 TX600 TX600 AX627PD* * These antennas must be mounted on a roof or mast. Table 5 - Permissible Antenna/Transmitter Model Combinations AVALON RF, INC. TX600 Series User’s Guide & Operating Manual Page 22 4.3.2 Cables The length of the cable between the transmitter and the antenna will have a bearing on the output power transmitted. It is not recommended to have more than 30 feet of cable, as the cable loss will become appreciable, even with a low loss cable. If a cable must be used, we recommend a low loss cable like the LMR240 or LMR400 or equivalent. 4.3.3 Battery packs a) BAT80 – 14.4V/80WH Li-Ion battery pack with charger and power cable to transmitter - will run a TX630 transmitter for approximately 9 hours. b) BAT92 – 14.4V/92WH Li-Ion battery pack with charger and power cable to transmitter - will run a TX630 transmitter for approximately 12 hours. c) BAT103 – 14.4V/103WH Li-Ion battery pack with charger and power cable to transmitter - will run a TX630 transmitter for approximately 15 hours.
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