Integrated Microwave Technologies 27CMT1-L5-E1P5 Microwave Transmitter User Manual users manual

Integrated Microwave Technologies, LLC. Microwave Transmitter users manual

users manual

Nucomm Inc. 101 Bilby Road Hackettstown, NJ 07840 Tel: 908-852-3700 Fax: 908-813-0399 www.Nucomm.com CHANNELMASTER TX1 Portable Microwave Transmitter User Manual NUCOMM PUBLICATION: M01-0026-00A, REV 2.2
Revision 2.2 ii ChannelMaster TX1 Transmitter Warranty Equipment manufactured by Nucomm, Inc. is warranted to meet all customer specifications and to be free from defects in material and workmanship within a period of two years from date of shipment from Nucomm. The company’s liability under this warranty is limited to: • Servicing or adjusting equipment. • Replacement of defective parts. Any equipment returned to the factory shall have the freight paid for by the buyer. Equipment showing damage by misuse, abnormal conditions of operation, or attempts to repair by other than authorized service personal shall be excluded from this warranty. Nucomm, Inc. shall in no event be responsible for incidental injury or property damage. Since Nucomm, Inc. has no control over conditions of use, no warranty is made or implied as to suitability for the customer’s intended use, beyond such performance specifications as are made part of the purchase order. There are no warranties expressed or implied, except as stated herein. This limitation on warranties shall not be modified by verbal representations. Proprietary & Disclaimer Notice All information and graphic images herein contained within this manual are considered the sole property of Nucomm, Inc. and are issued in the strictest of confidence. This material may not be reproduced, stored, copied, or converted in any form, nor shall it be disclosed to others or used for manufacturing or any other purpose without the written permission of an authorized representative of Nucomm, Inc. Nucomm, Inc. has made every effort to ensure the accuracy of this material at the time of printing. However, as the specifications, equipment, and this manual are subject to change without notice, Nucomm, Inc. assumes no responsibility or liability whatsoever for any errors or inaccuracies that may appear in this manual, or for any decisions based on its use. This manual is supplied for informational purposes only and should not be construed as a commitment by Nucomm, Inc. © Copyrighted 2005, Nucomm, Inc., Hackettstown, New Jersey 08740
Revision 2.2 ChannelMaster TX1 Transmitter iii Customer Service Information Equipment Returns Customer Service technicians at Nucomm are available to extend technical assistance to customers installing or operating Nucomm equipment. They will also assist customers with equipment troubleshooting. If this cannot be successfully accomplished by telephone, the equipment may be returned to the factory for repair. Loaner equipment is often available until Nucomm is able to ship repaired units. Do not return any Nucomm product to the factory until you have received a return authorization (RA) number and shipping instructions from Nucomm. When returning equipment to Nucomm, please enclose a letter containing the following: • RA number. • Model number. • Serial number. • Frequency operating range (in the case of modules). • A detailed description of the problem. • Name of an engineer or technician we may contact in regards to this problem. • Include a “ship to” and “bill to” address. Ship to: Nucomm, Inc. 101 Bilby Road Hackettstown, New Jersey 07840 For International orders In the case of units being shipped from outside the United States, Nucomm recommends the use of a courier such as Federal Express, UPS, etc, and that the goods be shipped DOOR-TO-DOOR PRE-PAID. This will eliminate Customs costs, handling charges, and delays. Enclose all the information above, plus a statement that the equipment was manufactured in the United States (the latter is needed to expedite customs processing). Nucomm evaluates all returned units free of charge, and then confers with customers on corrective action. Telephone Consultation Should there be a need for emergency telephone consultation, please have your model number and serial number available for the Customer Service representative. Nucomm Customer Service representatives are available to deal with all technical questions or difficulties.
Revision 2.2 iv ChannelMaster TX1 Transmitter Replacement Modules Troubleshooting to the component level is often not cost-effective and frequently impossible. Often the practical method of effecting field repairs is to substitute known good spare modules for suspect units. Nucomm maintains an inventory of replacement modules for its standard line of products. Field Repair Nucomm products are designed with easy access to components to facilitate service. When troubleshooting, the user is cautioned to read all module descriptions in this manual. Some Nucomm modules cannot be serviced in the field. Warnings are included in the circuit descriptions and on certain modules themselves, however; the lack of a warning cannot be construed as a statement of safety. To prevent the voiding of the Nucomm warranty that protects the equipment, please contact Nucomm before servicing or making any repairs. Shipping Damage Equipment shipped FOB Nucomm, Inc.; shall become the property of buyer upon delivery to and receipt from carrier. Any damage in shipment should be handled by the buyer directly with the carrier. Immediately request the carrier’s inspection upon evidence of damage in shipment. Do not return any Nucomm product to the factory until a return authorization (RA) number has been given, along with shipping instructions, as discussed previously. Contact Information Nucomm Inc. 101 Bilby Road Hackettstown, NJ 07840 Tel: 908-852-3700 Fax: 908-813-0399 www.Nucomm.com During Nucomm business hours, 8:30am – 5:30pm EST (-5:00 GMT): US: ...................................................................................... (908) 852-3700 International:......................................................................... 001 - 1 - (908) 852-3700 24-Hour Hotline: US: ....................................................................................... (888) 531-3892 International:......................................................................... 001 - 1 - (888) 531-3892
Revision 2.2 ChannelMaster TX1 Transmitter v CAUTION! RISK OF ELECTRICAL SHOCK. DO NOT REMOVE COVERS. • Do not remove any covers. • Refer servicing to qualified technicians only. • Disconnect all power before servicing. • Read and perform all instructions carefully. Failure to follow suggested instructions and guidelines may void all warranties. FCC STATEMENT  !!""#$%#&'()*'+)'+.
Revision 2.2 vi ChannelMaster TX1 Transmitter TABLE OF CONTENTS 1. DESCRIPTION ......................................................................................................................................1-1 2. FEATURES............................................................................................................................................2-1 2.1 Configuration ......................................................................................................................................2-1 2.2 Physical Description...........................................................................................................................2-2 2.3 Options ...............................................................................................................................................2-2 2.4 Accessories ........................................................................................................................................2-2 3. SPECIFICATIONS & FREQUENCY PLANS........................................................................................3-1 3.1 Frequency Plans (USA) .....................................................................................................................3-4 4. INSTALLATION .....................................................................................................................................4-1 4.1 Unpacking and Inspection .................................................................................................................4-1 4.2 Pre-Installation Checkout...................................................................................................................4-1 4.3 Mechanical Installation.......................................................................................................................4-1 4.4 Electrical Installation ..........................................................................................................................4-1 5. OPERATION..........................................................................................................................................5-1 5.1 Power Up............................................................................................................................................5-1 5.1.1 Changing Characters .................................................................................................................5-1 5.2 Button Operation................................................................................................................................5-2 5.2.1 Changing Operating Frequency.................................................................................................5-3 5.3 Presets................................................................................................................................................5-3 5.4 Status Indicators (9)...........................................................................................................................5-6 5.5 Main Menu Selections........................................................................................................................5-6 5.6 Data Rate ...........................................................................................................................................5-9 5.7 Nextel BAS Relocation Settings ......................................................................................................5-16 5.7.1 Audio Sub-Carrier Frequency ..................................................................................................5-16 5.7.2 Channel Bandwidth and Band Plan.........................................................................................5-17 5.7.3 Switchover to “Post-Nextel” Settings .......................................................................................5-17 LIST OF TABLES Table 3-1 ChannelMaster TX1 Specifications..................................................................................................3-1 Table 3-2: Frequency Plan (US), 2GHz 17MHz...............................................................................................3-4 Table 3-3: Frequency Plan (US), 2GHz 12MHz...............................................................................................3-5 Table 3-4: Frequency Plan (US), 7GHz ...........................................................................................................3-6 Table 3-5: Frequency Plan (US), 12GHz .........................................................................................................3-7 Table 3-6: Frequency Plan (US), 13GHz .........................................................................................................3-8 Table 5-1ChannelMaster 8 MHz B/W Data Rates...........................................................................................5-9 Table 5-2 ChannelMaster 7 MHz B/W Data Rates........................................................................................5-10 Table 5-3 ChannelMaster 6 MHz B/W Data Rates .....................................................................................5-10 LIST OF FIGURES Figure 2-1 ChannelMaster TX1 Block Diagram ...............................................................................................2-3 Figure 4-1 ChannelMaster TX1 Front Panel....................................................................................................4-2 Figure 4-2 ChannelMaster TX1 Rear Panel.....................................................................................................4-2 Figure 4-3 RS 232 Connector...........................................................................................................................4-3 Figure 4-6 AC Line Cord Construction .............................................................................................................4-4 Figure 4-7 Audio Cable Construction ...............................................................................................................4-5 Figure 4-8 High Power Unit Detail...................................................................................................................4-6 Figure 5-1: ChannelMaster TX1 Front Panel Controls and Indicators...........................................................5-1 Figure 5-2 ChannelMaster Menu Tree ...........................................................................................................5-18
Revision 2.2 ChannelMaster TX1 Transmitter vii Document Revision Date Modified Revision Modified by Modification Detail May 25, 2005 October 10, 2005 January 18, 2006 April 3, 2006 November 6, 2006 0 1 2 2.1 2.2 M Hardy M Hardy M Hardy M Hardy R Risch / M Hardy Initial release Removed reference to RS422 on Page 4-3, Fig 4-3. Added “Frequency Direct” info on 5-2. Updated weights & specs. Added BAS relocation. Updated presets. Misc. fixes; channel offsets Addition of new features and Menu functions, expanding of operation section (text and graphics). Nucomm makes every effort to ensure our documentation is accurate, and as complete as possible. In the event that you find any errors or omissions in our documentation, please contact Nucomm Customer Service at (908) 852-3700, or via email at service@nucomm.com.
Revision 2.2 viii ChannelMaster TX1 Transmitter
Revision 2.2 Description 1-1 1. DESCRIPTION Nucomm’s ChannelMaster TX1 is a Digital-Analog Portable Microwave Transmitter. The tripod mounted Microwave Transmitter System is designed to operate in any specified band in the 1.00 GHz to 15.5 GHz frequency range. Each unit is field programmable and configurable to meet a wide range of customer requirements. Standard features include fifteen presets (the first five presets allow single button operation), integrated dynamic color bars, HD transport capability, field programmable RF and Audio Sub-carrier frequencies, RF power control, local LCD display for control and monitoring. Also, special menus have been included to ease the BAS (US) relocation process. The ChannelMaster is fully integrated with an Analog FM modulator, compliant super-low delay MPEG 2 Encoder, and Multimode Digital Modulator. Available modulations include FM (NTSC / PAL), COFDM, optional single carrier QAM, and optional VSB. As additional digital modulation formats become available, the system can easily be software updated. The ChannelMaster TX1 is designed to be an extremely flexible system, with limited circuit complexity. The system video inputs include SDI, ASI, Composite Video and External 70 MHz. The system comes standard with two analog audios or one digital AES. Optionally, the system can support four analog audios or two digital AES. Other available options include: high power amplifier, multi-band operation, and standby power sourcing, as well as other features and options. Contact Nucomm for details. This manual is written in general form to cover all configurations and options for the series within the 1.00 GHz to 15.5 GHz frequency range.
Revision 2.2 1-2 ChannelMaster TX1 Transmitter Given the model number, the unit' configuration can be determined using the following: AAAAA – CMTX1 – BBCC – X – YZ Options Emphasis Type Specified Frequency Plan Power Output Model Generalized Frequency Band Designator Where: AAAAA = mean frequency band center in GHz rounded to the closest GHz. This number is then multiplied by 10. For multiple bands, each center frequency designation is separated by a backslash "/". BB = Used to identify the power output, per the following Power Output Designators: Power Output is represented by Letters (A-Z; A=1, B=2, C=3, etc) for the analog power, and Numbers (0-9) for the digital power. For example, a 5W Analog / 2W digital system would be described with a power indicator of "E2". A Dual-Band system would have two sets of power indicators, to show the power levels at both bands. CC = Nucomm assigns a frequency chart number for each unique frequency channel combination. Contact your Nucomm representative for further information. X = Type Emphasis; 1 = NTSC and PAL M; 2 = PAL B/G YZ = Miscellaneous options as listed below (append as many letters as needed) M = FM only M1 = COFDM only M2 = FM / COFDM M3 = FM / COFDM / DVBS M4 = COFDM / DVBS M5 = DVBS only M6 = External 70MHz Options that are not a standard part of the system, will be shown by shaded text as shown here.
Revision 2.2 Features 2-1 2. FEATURES 2.1 Configuration Nucomm’s ChannelMaster TX1 Series Digital-Analog Portable Microwave Transmitters are among the most comprehensive portable radios in the world. The ChannelMaster TX1 features are designed for both Analog and Digital operation in portable links, as well as helicopter and ENG/OB applications. In the Digital mode, the ChannelMaster accepts an external digitally modulated signal with QPSK, 8PSK, 16QAM, 8VSB, COFDM, DVBS and multi-level FSK. We also offer internal FM, COFDM, VSB, and DVBS (future). The rugged ChannelMaster TX1 includes video and audio processing boards, power supply, 70 MHz modulator, power amplifier, up-converter, and low noise frequency synthesizer enclosed in a weatherproof enclosure that typically mounts on a tripod. See Figure 1−1 for the system block diagram. The antenna (supplied separately) can be either mounted directly to the transmitter using one of our available mounting adapters, or can be remotely mounted to the transmitter and connected via standard RF cables with N-Type connectors. Many state-of-the-art options are available on the ChannelMaster, some not found on any other portable Transmitters, leading to a more cost-effective approach to portable Microwave Systems. The Nucomm ChannelMaster TX1 Series of transmitters are available in single, dual, and multi-band models. The ChannelMaster TX1 series radios provide full coverage of the 2, 7, & 13 GHz US frequency bands and/or other bands as required internationally, from 1 GHz to 15.5 GHz. The US frequency bands are given in Table 1 through Table 5. Band and channel selections are made and clearly displayed via the Front Panel LCD Interface. Prime Power All ChannelMaster TX1 transmitters feature a built-in power supply, which operates on power ranging from 90 to 240 VAC (40 to 60Hz), or +11 to +32 VDC without the need for internal jumpers or switch settings. Audio Sub-carriers Two (four optional) field programmable synthesized audio sub-carriers feature individual LINE/OFF/TONE source selection, and automatic gain control (AGC). The sub-carrier frequencies, Mode, and additional gain are front panel adjustable using the LCD interface. Standby Mode In the Standby mode, the ChannelMaster TX1 is powered on, but the RF output is muted, enabling the transmitter to be tuned safely without radiating off-frequency emissions. The ChannelMaster TX1 will remain in Standby until on-frequency lock has been obtained. Switching from Standby to the Normal (operating) mode results in instantaneous on-frequency
Revision 2.2 2-2 ChannelMaster TX1 Transmitter transmission. If the synthesizer has not attained a lock when the unit is switched from Standby mode to Normal, the unit will remain in Standby until on-frequency lock has been obtained. Signal Strength Indicators Transmitted signal strength is indicated on the LCD display by a digital readout. The digital readout indicates the transmitted signal level directly in watts. (This function is intended as an approximate reading of power only.) Video Presence Detector The Video Presence Remote Standby mode enables the camera operator to remotely turn on the color bars or put the ChannelMaster TX1 in standby. Internal Self-Test Built-in diagnostic features include a 1 kHz audio test tone and a 761.5 kHz (1.512 MHz for PAL) video deviation test signal. Other Standard Features: • Digitally synthesized microwave oscillator tuning • Independent Gain Control for audio inputs (Two audio sub-carriers standard, four optional) • RS232/RS485 Remote • Power Adjustments • Analog/Digital Operation • Field Programmable RF and ASC settings 2.2 Physical Description The ChannelMaster TX1 measures 7.5 inches (19.05 cm) wide by 5.0 inches (12.7 cm) high by 13.25 inches (33.65 cm) deep. It features a robust housing design to withstand rough handling in the field. The case is weather-resistant, and all connectors are weatherproofed. 2.3 Options • Test Pattern/ID Test Generator with: o SMPTE RS-170A Color Bars (EBU Pattern) o A 16-character programmable ID (can be placed in the Vertical Interval and Gen-locked to the incoming Video signal) • Remote Control Software allowing the ChannelMaster TX1 to be fully monitored and controlled from an IBM Compatible PC through a RS232C/RS485 port. • High Power Amplifier enabling enhanced MER. 2.4 Accessories ChannelMaster TX1 transmitters ship with AC & DC power cords and manual. With the addition of a modem, the ChannelMaster can pass DS3/E3 or a variety of other digital signals. The ChannelMaster can accept PSK, QPSK, 8PSK, DVB-S, Multi-Level FSK, 16QAM, and COFDM signals directly through the 70 MHz input connector with no internal modifications. Nucomm also offers a full line of antennae and antenna mounting equipment that seamlessly integrate with the ChannelMaster series.
Revision 2.2 Features 2-3 Figure 2-1 ChannelMaster TX1 Block Diagram 36 to 70 MHz up-Converter Amplifier902-M055-01UpperFrontPanelLCDUprocLowerFrontPanelModulatorPower Supply70MHzI2c, RF_Pwr, 12V, 12V_Adj+12V, I2CVideo InSDI InASI InVideo, ASI, SDI Out, 4 Audio/AES+12V+12VI2CRS2324 Audio InAC/DC Input902-C111-01902-C122-01902-M054-01902-P051-05IF & RF UP Converter902-I058/S088YIG VCO901-S089RF Output-1PADetRF Output-2PADet36 MHz+12V_PA, 12V_AdjStdby-1Stdby-2AC/DCRF Output2 AESI2c, RF_Pwr_Out, 12V, +5VDet_1 & 2I2c, 12VExt 70 MHz Input70MHz70 MHz Monitor Output0000Channel Master Interface902-C108-01
Revision 2.2 2-4 ChannelMaster TX1 Transmitter
Revision 2.2 Specifications 3-1 3. SPECIFICATIONS & FREQUENCY PLANS Table 3-1 ChannelMaster TX1 Specifications RF Performance: Frequency Bands:.................................... bands from 1.9 GHz to 13.25 GHz available (higher frequencies pending). Multi-band models available. Please contact Nucomm for specifics. Tuning step size: ..................................... 250 kHz (US), 100 kHz (International) 70 MHz input:........................................... –10 dBm to 0 dBm (75 ) Frequency stability: ................................. ± 5 ppm (.0005%) Power Output Standby mode: Standby: ............................................ No RF output Normal: .............................................. HI power = Full power .............................................. LOW power = 3.5 dB drop (typical) Modulation Modes Standard selectable: Modulation 1: .......................................... COFDM: QPSK, 16QAM, 64 QAM Code Rate: .......................................... 1/2, 2/3, 3/4, 5/6 and 7/8 Guard Interval: .................................... 1/32, 1/16, 1/8, 1/4, Bandwidth: .......................................... 6 MHz, 7 MHz, and 8 MHz Number of Audios:............................... Two audio standard; Four audio available Data Rates: ......................................... to 32 Mbps Modulation 2: Analog FM Two field tunable sub-carriers; 4 available Analog Modulation Deviation, selectable: ......................3 MHz/volt or 4 MHz/volt Modulation 3: .......................................... VSB: 2VSB, 4VSB, 8VSB, 8VSBT (Other modulation formats available with optional download.) Video & Digital Input Performance: Video: ...................................................... 525/625 lines NTSC/PAL field selectable Pre-emphasis: ..................................... (Analog) NTSC/PAL-B,G or M LCD selectable (CCIR 405) Video Low-Pass-Filter LCD selectable: .....................3.9 MHz, 4.5 MHz, 4.75 MHz, and 5.6 MHz Frequency Response: ......................... ± 0.25 dB (10 Hz to video filter selected) Base-Band Response: ........................ ± 0.50 dB (10 Hz to 9 MHz) Signal-to-noise ratio: ........................... 69 dB typical (65 dB minimum) Differential Phase: .............................. ± 1.0 degrees Differential Gain: ................................. ± 1.0 % SDI Video: ............................................... SMPTE 259M Level C De-Embedded Audio DVB-ASI: ................................................. Data Rates to 31.66845 Mbps Input impedance: .................................... 75  Return loss:.............................................. –26 dB (10 Hz to 5 MHz)
Revision 2.2 3-2 ChannelMaster TX1 Transmitter Table 3-1. ChannelMaster TX1 Specifications (Continued) Audio Performance: Standard: ................................................. 2 line audio and 1 digital AES/EBU inputs Available: ................................................. 4 line audio and 2 digital AES/EBU inputs (audios can be analog, AES/EBU or SDI De-embedded) Analog Audio Mode Sub-Carriers: ........................................... selectable and field tunable from front panel; Tunable in 5 kHz steps 4.8 MHz to 9.0 MHz Frequency Response: 30 Hz to 10 kHz: ................................ 0.5 dB 10 kHz to 15 kHz: .............................. 1.0 dB Deviation: ................................................ 75 kHz peak at 1 kHz (100 kHz for PAL) Pre-emphasis: ......................................... 75 µs & 50 µs LCD selectable Digital Audio Mode: Frequency Response:.............................. 30 Hz to 20 kHz: 0.5 dB Digital & Analog Modes: Line output: US:...................................................... +8 dBm, 600  for 75 kHz peak deviation International:....................................... +12 dBm, 600  for 100 kHz peak deviation Signal-to-noise: Line audio: ......................................... 65 dB Harmonic distortion: Line audio:.......................................... 0.5% maximum (typically 0.2%) Remote Control:..................................... RS-232/RS-485; 9 Pin “D” Power Requirements:............................ AC 90 to 240 VAC or +11 to +32 VDC. Environmental: Temperature range: Full specification:................................ –30° to +60°C Storage: ............................................. –40° to +80°C Humidity: ................................................. 0 to 95% non-condensing
Revision 2.2 Specifications 3-3 Table 3-1. ChannelMaster TX1 Specifications (Continued) Physical Characteristics: Size (Low Pwr Unit): ............................... 4.89" (12.42 cm) x 7.5" (19.05 cm) x 12.0" (30.48 cm) Size (Hi Pwr Unit): ................................... 5.2" (13.21 cm) x 7.5" (19.05 cm) x 12.0" (30.48 cm) Weight: Single-Band (2 GHz), Low-Power:..... 15.25 lbs (6.86 kg) Duale-Band (2/7 GHz), Low-Power: .. 16.50 lbs (7.43 kg) Single-Band (2 GHz), High-Power:.... 15.75 lbs (7.09 kg) Duale-Band (2/7 GHz), High-Power:.. 17.00 lbs (7.65 kg) Connectors: Video / SDI / DVB-ASI / 70MHz IF: ........ Type BNC-F RF Output: ............................................... Type “N-F” RF Head Audio: ...................................................... Multi-pin, Detoronics DT02H-14-15PN (XLR break-out cable provided) Power: ..................................................... Multi-pin MS Type, Detoronics DT02H-14-18PN (XLR break-out cable provided) Remote Control: ...................................... 9 Pin “D” Female Case: Ruggedized to withstand rough handling in the field with handles that protect controls from damage. Case is weather-resistant and all connectors are weatherproofed.
Revision 2.2 3-4 ChannelMaster TX1 Transmitter 3.1 Frequency Plans (USA) The standard US frequency plans apply to all units sold into markets covered by the FCC. Frequency plans for all systems sold into non-US markets are individualized to meet specific customer requirements and licensing restrictions, as specified at the time of purchase. CHANNEL / FREQUENCY PLAN - CHART NO: 326 2 GHz (17 MHz) (Frequency Range 1,994 MHz – 2,497 MHz) Channel Offset Receive Frequency MHz 1 – 1,994.75 1 0 1,999.00 1 + 2,003.75 2 – 2,012.25 2 0 2,016.50 2 + 2,020.75 3 – 2,029.25 3 0 2,033.50 3 + 2,037.75 4 – 2,046. 25 4 0 2,050.50 4 + 2,054.75 5 – 2,063.25 5 0 2,067.50 5 + 2,071.75 6 – 2,080.25 6 0 2,084.50 6 + 2,088.75 7 – 2,097.25 7 0 2,101.50 7 + 2,105.75 8 – 2,454.25 8 0 2,458.50 8 + 2,462.75 9 – 2,471.00 9 0 2,475.25 9 + 2,479.50 10 – 2,487.50 10 0 2,491.75 10 + 2,496.00 Table 3-2: Frequency Plan (US), 2GHz 17MHz
Revision 2.2 Specifications 3-5 CHANNEL / FREQUENCY PLAN - CHART NO: 326 2 GHz (12 MHz) (Frequency Range 2,025 MHz – 2,496 MHz) Channel Offset Receive Frequency MHz 1 – 2,028.50 1 0 2,031.50 1 + 2,034.50 2 – 2,040.50 2 0 2,043.50 2 + 2,046.50 3 – 2,052.50 3 0 2,055.50 3 + 2,058.50 4 – 2,064.50 4 0 2,067.50 4 + 2,070.50 5 – 2,076.50 5 0 2,079.50 5 + 2,082.50 6 – 2,088.50 6 0 2,091.50 6 + 2,094.50 7 – 2,100.50 7 0 2,103.50 7 + 2,106.50 8 – 2,454.25 8 0 2,458.50 8 + 2,462.75 9 – 2,471.00 9 0 2,475.25 9 + 2,479.50 10 – 2,487.50 10 0 2,491.75 10 + 2,496.00 Table 3-3: Frequency Plan (US), 2GHz 12MHz
Revision 2.2 3-6 ChannelMaster TX1 Transmitter CHANNEL / FREQUENCY PLAN - CHART NO: 326 (Frequency Range 6,431 MHz – 7,119 MHz) Channel Offset Receive Frequency MHz 1 – 6,881.25 1 0 6,887.50 1 + 6,893.75 2 – 6,906.25 2 0 6,912.50 2 + 6,918.75 3 – 6,931.25 3 0 6,937.50 3 + 6,943.75 4 – 6,956.25 4 0 6,962.50 4 + 6.993.75 5 – 6,981.25 5 0 6,987.50 5 + 6,993.75 6 – 7,006.25 6 0 7,012.50 6 + 7,018.75 7 – 7,031.25 7 0 7,037.50 7 + 7,043.75 8 – 7,056.25 8 0 7,062.50 8 + 7,068.75 9 – 7,081.25 9 0 7,087.50 9 + 7,093.75 10 – 7,106.25 10 0 7,112.50 10 + 7,118.75 11 – 6,431.25 11 0 6,437.50 11 + 6,443.75 12 – 6,456.25 12 0 6,462.50 12 + 6,468.75 13 – 6,481.25 13 0 6,487.50 13 + 6,493.75 14 – 6,506.25 14 0 6,512.50 14 + 6,518.75 Table 3-4: Frequency Plan (US), 7GHz
Revision 2.2 Specifications 3-7 CHANNEL / FREQUENCY PLAN - CHART NO: 10 (Frequency Range 12,706MHz - 12,950MHz) Channel Offset Receive Frequency MHz 1 - 12,706.25 1 0 12,712.50 1 + 12,718.75 1 ++ 12,725.00 2 - 12,731.25 2 0 12,737.50 2 + 12,743.75 2 ++ 12,750.00 3 - 12,756.25 3 0 12,762.50 3 + 12,768.75 3 ++ 12,775.00 4 - 12,781.25 4 0 12,787.50 4 + 12,793.75 4 ++ 12,800.00 5 - 12,806.25 5 0 12,812.50 5 + 12,818.75 5 ++ 12,825.00 6 - 12,831.25 6 0 12,837.50 6 + 12,843.75 6 ++ 12,850.00 7 - 12,856.25 7 0 12,862.50 7 + 12,868.75 7 ++ 12,875.00 8 - 12,881.25 8 0 12,887.50 8 + 12,893.75 8 ++ 12,900.00 9 - 12,906.25 9 0 12,912.50 9 + 12,918.75 9 ++ 12,925.00 10 - 12,931.25 10 0 12,937.50 10 + 12,943.75 10 ++ 12,950.00 Table 3-5: Frequency Plan (US), 12GHz
Revision 2.2 3-8 ChannelMaster TX1 Transmitter Table 3-6: Frequency Plan (US), 13GHz CHANNEL / FREQUENCY PAN - CHART NO: 10 (Frequency Range 12,976MHz - 13,250MHz) Channel Offset Receive Frequency MHz 1 - 12,956.25 1 0 12,962.50 1 + 12,968.75 1 ++ 12,975.00 2 - 12,981.25 2 0 12,987.50 2 + 12,993.75 2 ++ 13,000.00 3 - 13,006.25 3 0 13,012.50 3 + 13,018.75 3 ++ 13,025.00 4 - 13,031.25 4 0 13,037.50 4 + 13,043.75 4 ++ 13,050.00 5 - 13,056.25 5 0 13,062.50 5 + 13,068.75 5 ++ 13,075.00 6 - 13,081.25 6 0 13,087.50 6 + 13,093.75 6 ++ 13,100.00 7 - 13,106.25 7 0 13,112.50 7 + 13,118.75 7 ++ 13,125.00 8 - 13,131.25 8 0 13,137.50 8 + 13,143.75 8 ++ 13,150.00 9 - 13,156.25 9 0 13,162.50 9 + 13,168.75 9 ++ 13,175.00 10 - 13,181.25 10 0 13,187.50 10 + 13,193.75 10 ++ 13,200.00 11 - 13,206.25 11 0 13,212.50 11 + 13,218.75 11 ++ 13,225.00 12 - 13,231.25 12 0 13,237.50 12 + 13,243.75 12 ++ 13,250.00
Revision 2.2 Installation 4-1 4. INSTALLATION 4.1 Unpacking and Inspection Unpack and visually inspect the unit for LCD, connectors, and surface area damage. All claims should be filed with the carrier. Save all shipping and packing materials for possible re-use. 4.2 Pre-Installation Checkout Connect the ChannelMaster RF output through a 30 watt, 30 dB attenuator to a spectrum analyzer. Verify the output frequency and level correspond directly to the transmitter front panel settings. 4.3 Mechanical Installation The unit ships pre-assembled and requires no mechanical installation other than cabling. Optional accessories such as Triax cable, tripod, direct mounting antenna, or rack/vehicle mounting kits, are shipped with necessary instructions. 4.4 Electrical Installation The unit front and back panels are shown in Figure 4-1 and Figure 4-2. Connector details are shown in Figures 4-3 to 4-5. Power Connection (1) The built-in power supply accepts 90 to 240 VAC (40 to 60 Hz) or +11 VDC to +32 VDC without requiring any jumper or switch settings. See Figure 4-5. Nucomm ships a DC cable, and the appropriate local AC line cord. Alternate line cords are available upon request. Optional "Standby" Power feature: For power redundancy, the unit can be configured to accept both AC AND DC. ASI, SDI, Composite & 70MHz ports All video inputs are made via 75  BNC coaxial cables to the appropriate, clearly marked, front panel port. ASI (to 31.66845 Mbps) or SDI signals are input via the ASI IN (2) or SDI IN (3) ports. Composite or Baseband video is input via VIDEO IN (4). 70 MHz is input via the 70 MHz IN port (5). Select the appropriate input type via the front panel interface. See Section 5 for details. Optionally, the unit can be fitted with an ASI OUT port (not shown), for use as a standalone ASI encoder. AUDIO Inputs (6) All audio inputs are made via this connector. See Figure 4-4. The Digital AES/EBU inputs are on Audios 1 & 3. Only one Digital audio is available in the standard “two audio” configuration. RS232 connector (left side of unit) This port is for control and monitoring via RS232 or RS485. See Figure 4-3. RF OUTPUT (7) RF output is via a Type-N connector at the rear of the unit. Directly connect a suitable antenna, or a 50 , low-loss coaxial cable (such as RG-214U) between the RF Output and the antenna connector. POWER SWITCH and FUSES (8) The unit has AC & DC fuses. The AC fuse is 2.5 Amps (fast blow). The DC fuse is 10 Amps (fast blow).
Revision 2.2 4-2 ChannelMaster TX1 Transmitter Figure 4-1 ChannelMaster TX1 Front Panel Figure 4-2 ChannelMaster TX1 Rear PanelDCACON7 8
Revision 2.2 Installation 4-3 Pin # Function RS232 RS485 1 N/C N/C 2 RX / IN RX/A 3 TX / OUT TX/A 4 N/C N/C 5 GND GND 6 N/C TX/B 7 N/C N/C 8 N/C RX/B 9 +11Volts +11Volts Figure 4-3 RS 232 Connector 1 6 9 5 RS 232 (DB9-F) PIN-OUT DESCRIPTION C AC Neutral E Chassis GND G AC Line H, S GND P, U, B +DC IN M RS232 TX / OUT L RS232 RX / IN Nucomm P/N: 512-M2001-000 Detoronics P/N: DT02H-14-18PN Mating Connector Nucomm P/N 512-F3001-000 Mil-C-26482, Series 1 P/N: MS3116F-14-1PS Figure 4-5 Power Connector (1) PIN-OUT DESCRIPTION J +…….Analog1/AES1 H GND..Analog1/AES1 G -……..Analog1/AES1 M +…….Analog2 L GND..Analog2 K -……..Analog2 F +…….Analog3/AES2 E GND..Analog3/AES2 D -……..Analog3/AES2 C +…….Analog4 B GND..Analog4 A -…….Analog4 Nucomm P/N: 512-M2014-015 Detoronics P/N: DT02H-14-15PN Mating Connector Nucomm P/N 512-F3012-015 Mil-C-26482, Series 1 P/N: MS3116J-14-15S Figure 4-4 Audio Connector (6)
Revision 2.2 4-4 ChannelMaster TX1 Transmitter Figure 4-6 AC Line Cord Construction
Revision 2.2 Installation 4-5 CM Transmitter Audio Cable PIN-OUT DESCRIPTION J +…….Analog1/AES1 H GND..Analog1/AES1 G -……..Analog1/AES1 M +…….Analog2 L GND..Analog2 K -……..Analog2 F +…….Analog3/AES2 E GND..Analog3/AES2 D -……..Analog3/AES2 C +…….Analog4 B GND..Analog4 A -…….Analog4 Figure 4-7 Audio Cable Construction
Revision 2.2 4-6 ChannelMaster TX1 Transmitter Figure 4-8 High Power Unit Detail
Revision 2.2 Operation 5-1 5. OPERATION Figure 5-1: ChannelMaster TX1 Front Panel Controls and Indicators 5.1 Power Up Upon powering up the unit, you will see three quick screens showing the equipment type, the model number, and the serial number. After that, the unit will display the DEFAULT screen, which will look similar to the following photo (depending on your configuration). Once this screen appears, options and settings can then be changed and initialized through the use of the front panel "Quick-Keys" and pre-set buttons, or via the menu system. The front panel of the unit is depicted in Figure 5-1. Menu navigation is via the rotary "Quick Knob" switch (2) to the right of the LED display. Turn the "Quick Knob" clockwise or counter-clockwise to move the cursor through the menus. By pressing the "Quick Knob", you are able to select, or activate, menu items. As such, the "Quick Knob" may also be referred to as the "Enter" button. 5.1.1 Changing Characters 1. Begin by rotating the “Quick Knob” until the desired screen item is hightlighted. Press Enter to select the item. 2. The left-most character position of the name will then be highlighted. Rotate the “Quick-Knob” until the desire alpha-numeric character appears. 3. Press the “Quick-Knob” to save the character. 4. Move the cursor to the second character, rotating the “Quick-Knob”. 5. Press the “Quick-Knob” to select the character. 6. Rotate the “Quick-Knob” until the desire alpha-numeric character appears.
Revision 2.2 5-2 ChannelMaster TX1 Transmitter 7. Again, Press the “Quick-Knob” to save the character. 8. Repeat Steps 2 thru 7 until either the desired name is assigned or all character positions are filled. On certain screens (as with system settings), an arrow is used to show the current setting, as in the following where "SDI" is currently set: Note the highlighted arrow at the bottom left of the screen. This highlighting is the "cursor", and indicates an item that is ready to be selected. Note: After one minute of inactivity the display reverts to the DEFAULT screen, and any un-activated selections are discarded. 5.2 Button Operation Set Modulation Mode (3) The ChannelMaster TX1 modulation mode is set to ANALOG or DIGITAL, based on the Modulation Mode selected on the front panel through the use of the “DIGI_ANLG” Button. Pressing the “DIGI_ANLG” Button, immediately switches the ChannelMaster TX1 from the one mode to the other (from Digital to Analog, or from Analog to Digital Mode). This is made apparent from the Input LED’s (located next to the button) and a text message displayed on the LCD. Switching to Digital Mode When digital modulation is selected, the available input selections will be: Composite - The signal is converted to digital via the MPEG Encoder and routed to the digital modulator. SDI - The signal routes through the MPEG Encoder and then to the digital modulator. External 70 MHz Digital - This input bypasses the encoder and modulator, and routes to the heterodyne up-converter. ASI - Input bypasses the Encoder and goes to the digital modulator. (The ASI rate must be at or below the maximum digital modulation rate.) Switching to Analog Mode
Revision 2.2 Operation 5-3 When analog modulation is selected, the available input selections will be: Composite - The composite signal is routed through the internal low pass filter (bandwidth ± 4.0 MHz NTSC, ± 5.6 MHz PAL typical.) then sent to the FM modulator. SDI - Internal circuits convert SDI inputs to Composite. The signal is then processed as Composite. External 70 MHz FM - This input bypasses the modulator, and routes to the heterodyne up-converter. Set Power Level (4) The user can toggle between HI or LOW power by merely pressing the “HI/LO” Button. The LCD will then immediately display the change at the bottom right corner. Unit in Low Power Mode 5.2.1 Changing Operating Frequency 1. Ensure that the Main Menu screen is displayed on the LCD. 2. Rotate the “Quick-Knob” to highlight the preset parameter to be changed. 3. Press the “Quick-Knob” to enter the selection. 4. Rotate the “Quick-Knob” to adjust the value of the selection. 5. Press the “Quick-Knob” to enter the changed value. 6. Rotate the "Quick Knob" until the digit that needs to be changed is highlighted. 7. Press "Enter". 8. Change the digit as needed. 9. Press "Enter". 10. Repeat until all digits are correct. 11. When all digits are correct, move the cursor to the end of the frequency where it says “GHz”. 12. Press "Enter". When the operating frequency is changed, the unit goes into standby while the synthesizer re-tunes to the new frequency. Transmission resumes when the new frequency is reached. 5.3 Presets There are 15 Channel Presets. These Presets are either changed or recalled through the numbered “Preset” Buttons, or through the “PRE” Button. The numbered Preset Buttons are pa1 through pa5, located just below the LCD. These five numbered preset keys are provided to rapidly store and recall five custom configurations without button operation. Accessing the remaining presets requires using the “PRE” Button.
Revision 2.2 5-4 ChannelMaster TX1 Transmitter “PRE” Button As well as also bringing up the first group of presets (pa1 – pa5), the other two sets of presets are only accessible through the “PRE” (Preset) Button. Pressing the “PRE” Button once brings up the presets pa1 – pa5. Pressing the “PRE” Button twice, brings up the presets pb1 – pb5. Pressing the “PRE” Button three times, brings up the presets pc1 – pc5. These presets are set and saved in the same way as the numbered “Preset” Buttons. Changing & Setting Preset Parameters. Before saving a preset, program the radio with the desired parameters. To change these parameters, refer to Section 5.2.1 or 5.5. For Presets pa1 – pa5, simply press & hold the numbered button just below the desired preset to save it. Press & hold numbered button below the desired preset to save it. For Presets pb1 – pb5, & pc1 – pc5, press the “PRE” Button the appropriate amount of times to bring up the set containing the desired preset. Rotate the “Quick-Knob” until it highlights the desired preset, and press & hold the “Quick-Knob” to save it until the confirmation message is displayed (approximately 4 seconds). When a preset is saved, all system parameters are stored into memory with the associated preset. These parameters include: • Modulation Parameters • Input Type • Power Mode • Channel Number & Frequency • Audio Settings The ChannelMaster LCD indicates which of the presets have been programmed as well as those that have not been programmed. All presets represented by capital letters have been programmed.
Revision 2.2 Operation 5-5 All presets represented by lowercase letters have not been programmed. Example: • PA1 - has been programmed. • pa1 - has not been programed. Changing & Setting Preset Name Each preset can be given a name up to 16 characters long. The name can consist of alpha-numeric characters only (characters A – Z & 1 – 9). The preset, however, must have the channel, frequency, and band saved first before it can be assigned a name. To assign a name to a preset, perform the following: 1. From any menu screen, press the “PRE” Button the appropriate amount of times to bring up the set containing the desired preset. 2. Rotate the “Quick-Knob” to highlight the preset to be assigned a named. 3. Press the “Quick-Knob” to enter the selection. 4. Rotate the “Quick-Knob” until the name area is hightlighted. 5. Press the “Quick-Knob” to enter the selection. (Refer to Section 5.1.1 for Changing Characters.) Highlighted Name Area 6. When completed, move the cursor over the arrow at the bottom-right. 7. Press the “Quick-Knob” to select the arrow. The name has now been saved. Recalling A Preset Briefly press the preset to recall settings. When any of the first five Presets have been recalled, the associated Preset LED will illuminate. Preset 1 recalled NOTE: If the unit is enabled for Preset Lock RF CHN, the frequency cannot be changed by a preset and will remain the current operating channel. TX MODE (7) The TX MODE key is used to select from the following operating modes: • NORMAL: Transmitter is active, with or without a video (or composite) input signal. • STANDBY:Transmitter is in STANDBY until switched to another mode. Frequency synthesizer is locked on frequency. • VID STB (Video Standby): Not functional at this time. AUDIO Quick Key (8) The AUDIO quick key provides a shortcut to the audio settings. When modulating digitally, the system will display the Encoder's audio settings
Revision 2.2 5-6 ChannelMaster TX1 Transmitter as if you had selected the following menu items: Menu>Encoder>Audio. (Refer to Section 5.5; Encoder Menu Selections.) When modulating in analog, the system displays the FM audio settings, as if the following items were selected: Menu> Modulation> Parameters> FM> Audio. (Refer to Section 5.5; FM.) 5.4 Status Indicators (9) The following show the unit's status: RF (Green): RF present at output port. Color Bars: Color Bars are active. Alarm (Red): Indicates an improper setting or a module failure. The exact reason for the alarm can be determined from the Alarm section of the Main Menu. Remote: Unit is under remote control. Video (Green): Indicates that video is present. 5.5 Main Menu Selections The user can customize the ChannelMaster TX1 operation (rather than using the factory defaults) through the Main Menu. After pressing the Main Menu Button, the Main Menu Screen will appear. From the Upper Level Menu, the user can select one of six sub-menus to access. They are: • Input Menu • Modulation Settings Menu • Encoder Settings Menu • System Settings Menu • Monitoring Menu • Alarms (Current) Input Menu Selections The Input Menu works in conjunction with the DIGI_ANLG (Digital/Analog) Button. Once the type of modulation is chosen, the operator then uses the Input Menu to manually select the input source that is to be made active.
Revision 2.2 Operation 5-7 As previously discussed in Section 5.2, the Digital inputs consist of: • Composite • SDI • External 70 MHz • ASI As previously discussed in Section 5.2, the Analog inputs consist of: • Composite • SDI • External 70 MHz Remember, only one input can be made active at any time. Only the Input Menu can select the active input, regardless of whether there are signals present on any of the input connectors, Modulation Menu Selections The Modulation Menu establishes the operating parameters for both Analog and Digital modulation schemes. The Modulation Menu has two sub-menus: • Mode Select. • Parameter Setup. Mode Select is used strictly for selecting the type of Digital Modulation to be utilized by the TX1. Choices are COFDM, DVB-S, and VSB. Parameter Setup allows the user to change or adjust the various parameters affecting the different modulation types. These parameters are for: • FM • COFDM • DVB-S (Future) • VSB FM For FM (Analog), there are two sub-categories: Audio, and Video. Under the FM Audio sub-menu, the user can chose between any one of four Analog audio channels (SC1L, SC1-R, SC2-L, & SC2-R) and change any of the following: • Input: Off, Line, Tone, AES/EBU, and Embedded • Insertion: Adjusts from –40 dB to –20 dB; (default –28 dB.) • Gain: Adjusts from –6 dB to +6 dB; (default 0.0 dB) • Nextel Frequency Band: Adjusts sub-carrier frequency - (Refer to table in Section 5.7.1 - Audio Sub-carrier Frequencies.) (Refer to Section 5.2.1: Changing Operating Frequency.) If LINE is selected, the unit accepts balanced 600  inputs at +8 dBm Analog (–10 dBu Digital). At 1 kHz input, headroom is +18 dBm Analog (0 dBu Digital). Under the FM Video sub-menu, the user can change any one of four selections. They are: • Inverse: Normal, Inverse • Emphasis: Emphasis, Flat • Filter: Bypass, 3.90 MHz, 4.50 MHz, 4.75 MHz, 5.60 MHz • Deviation Bandwidth: (Display Only)
Revision 2.2 5-8 ChannelMaster TX1 Transmitter COFDM For the COFDM (Digital) sub-menu, the following parameters can be changed: • Power: On, Off • Constellation: QPSK, 16QAM, 64QAM • Code Rate (error correction):1/2, 2/3, 3/4, 5/6, 7/8 • Guard Interval (guard spacing - delay between intervals): 1/32, 1/16, 1/8, 1/4. • Bandwidth: 6 MHz, 7 MHz, 8 MHz
Revision 2.2 Operation 5-9 5.6 Data Rate Use the following tables to identify the resulting Data Rate that will be set when selecting the ChannelMaster's Code Rate: (Modulation>Parameter Setup> COFDM >Code Rate) Table 5-1ChannelMaster 8 MHz B/W Data Rates Modulation Code Rate Guard Interval System 1/32 1/16 1/8 1/4 IF = 9.142857 MHz Flo = 60.857143 MHz BW = 8 MHz Clk=36.571429 Mbit/s Data Rate (Mbit/s) 1/2 6.032086 5.854671 5.529412 4.976471 2/3 8.042781 7.806228 7.372549 6.635294 QPSK 3/4 9.048128 8.782007 8.294118 7.464706 5/6 10.053476 9.757785 9.215686 8.294118 7/8 10.55615 10.245675 9.676471 8.708824 1/2 12.064172 11.709342 11.058824 9.952942 2/3 16.085562 15.612456 14.745098 13.270588 16-QAM 3/4 18.096256 17.564014 16.588236 14.929412 5/6 20.106952 19.51557 18.431372 16.588236 7/8 21.1123 20.49135 19.352942 17.417648 1/2 18.096258 17.564013 16.588236 14.929413 2/3 24.128343 23.418684 22.117647 19.905882 64-QAM 3/4 27.144384 26.346021 24.882354 22.394118 5/6 30.160428 29.273355 27.647058 24.882354 7/8 31.66845 30.737025 29.029413 26.126472
Revision 2.2 5-10 ChannelMaster TX1 Transmitter Table 5-2 ChannelMaster 7 MHz B/W Data Rates Modulation Code Rate Guard Interval System 1/32 1/16 1/8 1/4 IF = 7.999999875 MHz Flo = 62.000000125 MHz BW = 7 MHz Clk=32.0000 Mbit/s Data Rate (Mbit/s) 1/2 5.27807525 5.12283713 4.8382355 4.35441213 2/3 7.037433375 6.8304495 6.45098038 5.80588225 QPSK 3/4 7.917112 7.68425613 7.25735325 6.53161775 5/6 8.7967915 8.53806188 8.06372525 7.25735325 7/8 9.23663125 8.96496563 8.46691213 7.620221 1/2 10.5561505 10.2456743 9.676471 8.70882425 2/3 14.07486675 13.660899 12.9019608 11.6117645 16-QAM 3/4 15.834224 15.3685123 14.5147065 13.0632355 5/6 17.593583 17.0761238 16.1274505 14.5147065 7/8 18.4732625 17.9299313 16.9338243 15.240442 1/2 15.83422575 15.3685114 14.5147065 13.0632364 2/3 21.11230013 20.4913485 19.3529411 17.4176468 64-QAM 3/4 23.751336 23.0527684 21.7720598 19.5948533 5/6 26.3903745 25.6141856 24.1911758 21.7720598 7/8 27.70989375 26.8948969 25.4007364 22.860663 Table 5-3 ChannelMaster 6 MHz B/W Data Rates Modulation Code Rate Guard Interval System 1/32 1/16 1/8 1/4 IF = 6.85714275 MHz Flo = 63.14285725 MHz BW = 6 MHz Clk=27.428571 Mbit/s Data Rate (Mbit/s) 1/2 4.5240645 4.48248248 4.2334561 3.81011061 2/3 6.03208575 5.854671 5.5294118 4.9764705 QPSK 3/4 6.786096 6.58650525 6.2205885 5.5985295 5/6 7.540107 7.31833875 6.9117645 6.2205885 7/8 7.9171125 7.68425625 7.2573533 6.531618 1/2 9.048129 8.7820065 8.294118 7.4647065 2/3 12.0641715 11.709342 11.058824 9.952941 16-QAM 3/4 13.572192 13.1730105 12.441177 11.197059 5/6 15.080214 14.6366775 13.823529 12.441177 7/8 15.834225 15.3685125 14.514707 13.063236 1/2 13.5721935 13.1730098 12.441177 11.1970598 2/3 18.0962573 17.564013 16.588235 14.9294115 64-QAM 3/4 20.358288 19.7595158 18.661766 16.7955885 5/6 22.620321 21.9550163 20.735294 18.6617655 7/8 23.7513375 23.0527688 21.77206 19.594854
Revision 2.2 Operation 5-11 VSB For the VSB (Digital) sub-menu, the following parameters can be changed: • Type: 2VSB, 4VSB, 8VSB, 16VSB, 8TVSB • Bandwidth: 6 MHz, 7 MHz, 8 MHz BW = 6 MHz Data Rate (Mbit/s) 2 VSB 9.7 VSB 4/8T VSB 19.4 8 VSB 29.1 16 VSB 38.8 BW = 7 MHz Data Rate (Mbit/s) 2 VSB 11.3 VSB 4/8T VSB 22.6 8 VSB 33.9 16 VSB 45.3 BW = 8 MHz Data Rate (Mbit/s) 2 VSB 12.9 VSB 4/8T VSB 25.5 8 VSB 38.8 16 VSB 51.7 Note that the data rate for non-Trellis coded 4 VSB is the same as 8 VSB with Trellis coding. 8 VSB with Trellis coding @ 6MHz is the ATSC standard. VSB Data Rates Encoder Menu Selections The Encoder Menu establishes the operating parameters for the MPEG 2 Encoder (Digital). The Encoder Menu has four active sub-menus: • Audio • Video • Table • GOP Under the Audio sub-menu, the user can choose between Digital Audio Channel 1 and Digital Audio Channel 2 (if active). For each of these channels, changes can be made to the following parameters: • Input: Off, Line, Tone, AES/EBU, and Embedded • Sample Rate: (Display Only) • Level (L): Adjusts left-side input level from –6 dB to +6 dB; (default 0.0 dB) • Level (R): Adjusts right-side input level from –6 dB to +6 dB; (default 0.0 dB) The digital audio gain adjustment allows for ±6 dB of gain, and can be used to compensate for variance in line levels. If AES is selected, the unit accepts de-embedded SDI audio on Audio 1 (and Audio 3 in a four audio unit) and sends it to the MPEG encoder. If only two audio channels are configured, they will be the first channel in Group 1.
Revision 2.2 5-12 ChannelMaster TX1 Transmitter Under the Video sub-menu, the user can change any one of three Digital video selections. They are: • Standard (format): NTSC, PAL • Profile (video encoding): 4:2:2, 4:2:0 • Aspect (Ratio): 4:3, 16:9 The Table sub-menu addresses how MPEG-2 data packets are identified during transmission. The following values can be set by the user: • Service Name: (16 characters) • Service Provider: (16 characters) • PCR PID: (hexadecimal value) • Video PID: (hexadecimal value) • Audio 1 PID: (hexadecimal value) • Audio 2 PID: (hexadecimal value) (Refer to Section 5.1.1: Changing Characters.) With the GOP sub-menu, the user can set the type of frames, the amount frames, and the sequence used. The options for this sub-menu are: • 0: Low Delay – very fast encoding with low latency (the time it takes a data packet to move across a network connection). • 1: IP–15 – encoding utilizing Intra and Prediction frames, with a sequence of 15 frames. • 2: IP–45 – encoding utilizing Intra and Prediction frames, with a sequence of 45 frames. • 3: IPB–15 – (default) encoding utilizing Intra, Prediction, and Bi-directional frames, with a sequence of 15 frames. • 4: IPB–45 – encoding utilizing Intra, Prediction, and Bi-directional frames, with a sequence of 45 frames. • 5: IPBB–15 – the slowest encoding utilizing Intra, Prediction, and Bi-directional frames, with a sequence of 15 frames, but with double bi-directional frames. It has the highest type of encoding quality. System Menu Selections The System Menu establishes the general operating parameters for the ChannelMaster TX1. The System Menu has seven sub-menus: • Options • Remote • Version • Restore • Frequency • Factory • Nextel
Revision 2.2 Operation 5-13 With the Option sub-menu, the user can set the various miscellaneous parameters utilized by the system. The parameters for this sub-menu are: • Frequency Direct: (Yes, No) - If “Yes”, the user can change the frequency from the main menu, via the Quick Knob. If “No”, the frequency can only be changed via the frequency menu. • Start in Standby: (Yes, No) - tells the system to either start in the Standby mode (Yes), or begin transmitting immediately when powered-up (No). • Preset Change: (Yes, No) - either enables (Yes) or disables (No) the use of Presets. • Nextel Menu: (Yes, No) - The system will display (Yes) or hide (No) the Nextel options menu. • Preset Lock RF CH: (Yes, No) - If “Yes”, the channel may not be changed by a preset. • Video Present: (Stdby, Bars) - should the video signal be lost, this parameter allows the user to choose between the TX1 going into Standby Mode or displaying Color Bars. With the Remote sub-menu, the user can set the various parameters utilized by the system for distance remote control communications. The parameters for this sub-menu are: • Mode: (Remote/Local, Local) - allows the unit to be toggled between Remote & Local control, and Local (only) control. • Interface: (RS232, RS485) - selects between the two types of serial interface communication. • Address: (hexadecimal value) - sets the remote address of the ChannelMaster TX1. • Baud Rate: (2400, 9600, 19200) - sets the speed of the serial connection. With the Version sub-menu, the user can access version information about the system. The options for this sub-menu are: • Serial Number • Model Number • Front Panel Revision • Configuration Data • Frequency Plan Number The Restore option allows the user to restore all factory defaults to the TX1 at any given time. Caution, all previously stored changes will be erased from memory. The Frequency option allows an experienced user to modify the frequency plan utilized by the ChannelMaster TX1. Extreme caution should be used, since making any errors in the programming will effect the functioning of the unit.
Revision 2.2 5-14 ChannelMaster TX1 Transmitter The Factory Settings are to be used by Nucomm authorized personnel only! Any unauthorized tampering could make the unit unusable. For the Nextel sub-menu, see Section 5.7: Nextel BAS Relocation Settings. Monitor Menu Selections The Monitor option allows the user to monitor operational conditions of several components while the unit is in use. These include: • PSU • Temperature • Modulator • Upconverter • RF Head NOTE: For PSU values, all voltages are set to alarm at a condition of ± 10%. Alarms Alarms are reported when errors occur during the operation of the ChannelMaster TX1. The alarm may be the result of a detected broken communications link or an improper input (etc.), and not the fault of the unit itself. Regardless of the problem, the Alarm LED will illuminate, and the LCD will flash a text message stating the alarm problem. Alarm History List Working in conjunction with the Alarms function, the Alarm History List allows the user to view any active alarm(s) currently affecting the system. If the alarm problem is resolved, the alarm will disappear from the listing.
Revision 2.2 Operation 5-15
Revision 2.2 5-16 ChannelMaster TX1 Transmitter 5.7 Nextel BAS Relocation Settings For our US clients, the ChannelMaster is designed so that, when properly configured per the following guidelines, you will only need to change one setting on one screen when it’s time to switch over to the “post-Nextel” 2 GHz band plan. To preset the unit to allow a “one setting” switchover, there are two groups of settings that must be made in advance: “AUDIO SUB-CARRIER FREQUENCY” and “CHANNEL BANDWIDTH & BAND PLAN”. These are described below. 5.7.1 Audio Sub-Carrier Frequency In this section, you set your “pre-Nextel” and “post-Nextel” Audio Sub-Carrier (ASC) frequencies, so that when you make the switchover they will be ready to go. Start the ASC set-up procedure by making the following menu selections: MENU>MODULATION>PARAMETER SETUP>FM>AUDIO This brings up a screen similar to the one at right, with the settings and selections as described below: All ASC’s are modified in the same fashion. ASC#1 is used as the example. 2(17)/7/13 This setting controls the frequency for the selected Sub-Carrier when operating in the “pre-Nextel” 2 GHz band (USA), as well as for all the other frequency bands (i.e. 7 GHz or 13 GHz). The possible range for this setting is 4.83 MHz to 8.5 MHz. (Refer to Section 5.2.1 - Changing Operating Frequency.) 2(12) 1-7 This setting controls the frequency for the selected Sub-Carrier when operating in the “post-Nextel” 2 GHz band (USA) on channels 1 through 7. The possible range for this setting is 4.83 MHz to 5.8 MHz. (Refer to Section 5.2.1 - Changing Operating Frequency.) 2(12) 8-10 This setting controls the frequency for the selected Sub-Carrier when operating in the “post-Nextel” 2 GHz band (USA) on channels 8 through 10. The possible range for this setting is 4.83 MHz to 8.5 MHz. (Refer to Section 5.2.1 - Changing Operating Frequency.) Nucomm’s Default Audio Sub-carrier Frequencies Band-plan ASC1 ASC2 ASC3* ASC4* 2(17)/7/13 4.83 MHz 6.20 MHz 6.80 MHz 7.50 MHz 2(12) 1-7 4.83 MHz 5.80 MHz 6.80 MHz 7.50 MHz 2(12) 8-10 4.83 MHz 6.20 MHz 6.80 MHz 7.50 MHz *NOTE: Due to bandwidth limitations, only two ASC’s can be active on the “post-Nextel” 2 GHz band-plan (US), regardless of how the unit is hardware configured.  SC1 Insertion: (-20 to -40dBc) 2(17)/7/13: 4.83 MHz 2(12) 1-7: 4.83 MHz 2(12) 8-10: 4.83 MHz
Revision 2.2 Operation 5-17 2GHz Freq Plan: 2G(17), 2G(12) BW(2G(17)/7/13): 4MHz, 3MHz BW(2G(12)8-10): 4MHz, 3MHz 5.7.2 Channel Bandwidth and Band Plan In this section, you can set your “pre-Nextel” and “post-Nextel” Video Bandwidth Deviation, so that when you make the switchover they will be ready to go. Start this set-up procedure by making the following menu selections: MENU>SYSTEM>Nextel. Note: If the Nextel screen is not visible then it must be enabled by selecting MENU>SYSTEM>OPTIONS>NEXTEL MENU=YES This brings up the screen at right, with the settings and selections as described below: 2GHz Freq Plan This setting controls the 2 GHz Frequency Plan, which will be used by the radio. Select the 17 MHz “pre-Nextel” band-plan by choosing “2G(17)”, or the 12 MHz “post-Nextel” band-plan by choosing “2G(12)”. BW(2G(17)(7/13) This setting controls your Video Deviation bandwidth when operating in the “pre-Nextel” 2 GHz band (USA), as well as for all the other frequency bands (i.e. 7 GHz or 13 GHz). The possible selections are 3 MHz or 4 MHz. BW(2G(12) 8-10) This setting controls the Video Deviation bandwidth when operating in the “post-Nextel” 2 GHz band (USA) on channels 8 through 10. The possible selections are 3 MHz or 4 MHz. NOTE: Due to bandwidth limitations of the “post-Nextel” 2 GHz band-plan, in “2G(12)” mode, the Video Deviation bandwidth of 2 GHz channels 1 through 7 is locked at 3 MHz. 5.7.3 Switchover to “Post-Nextel” Settings For our US clients, when your DMA switchover date arrives, assuming you have already set the unit per the preceding guidelines, you will only need to take the following steps to put the radio on the new “post-Nextel” settings: Step #1: Navigate to the following menu: MENU>SYSTEM>NEXTEL Step #2: Change your “2 GHz Freq Plan” setting from “2G(17)” to “2G(12)” Step #3: Done!
Revision 2 5-18 ChannelMaster TX1 Transmitter Figure 5-2 ChannelMaster Menu Tree MENU

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