User manual DRAKE DIGITAL MM806

[. . . ] Follow Instructions--All operating and use instructions should be followed. Attachments--Do not use attachments that are not recommended by the product manufacturer as they may cause hazards. Water and Moisture--Do not use this product near water--for example, near a bathtub, wash bowl, kitchen sink or laundry tub; in a wet basement; or near a swimming pool; and the like. Accessories--Do not place this product on an unstable cart, stand, tripod, bracket, or table. [. . . ] Unauthorized substitutes may result in fire, electric shock or other hazards. Safety Check--Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition. Wall or Ceiling Mounting--The product should be mounted to a wall or ceiling only as recommended by the manufacturer. Heat--The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat. Figure A Example of antenna grounding as per National Electrical Code, ANSI/NFPA 70 NOTE TO CATV SYSTEM INSTALLERS: THIS REMINDER IS PROVIDED TO CALL THE CATV SYSTEM INSTALLER'S ATTENTION TO ARTICLE 820 - 40 OF THE NEC THAT PROVIDES GUIDELINES FOR PROPER GROUNDING AND, IN PARTICULAR, SPECIFIES THAT THE CABLE GROUND SHALL BE CONNECTED TO THE GROUNDING SYSTEM OF THE BUILDING, AS CLOSE TO THE POINT OF CABLE ENTRY AS PRACTICAL. GROUND CLAMP ANTENNA DISCHARGE UNIT (NEC SECTION 810-20) ELECTRIC SERVICE EQUIPMENT GROUNDING CONDUCTORS (NEC SECTION 810-21) GROUND CLAMPS ANTENNA LEAD IN WIRE NEC - NATIONAL ELECTRIC CODE POWER SERVICE GROUNDING ELECTRODE SYSTEM (NEC ART 250, PART H) 4 2 3 4 5 6 7 8 9 Table of Contents / Description Caution Statements Important Safety Instructions Table of Contents / Description Specifications Front Panel Controls and Indicators Rear Panel Controls and Connections Installation Reference Chart of Off-Air and CATV Channels 10 Service / If You Need To Call For Help 11 Warranty MM806 MODULATION MONITOR MODE CHANNEL VIDEO AUDIO POWER BCTV CATV CATV +100 2 5 % MODULATION 0 20 40 60 80 100 % MODULATION 0 20 40 60 80 100 DEPTH OF MODULATION 100% = 25 kHz PEAK The R. L. Drake MM806 is a professional quality agile television demodulator with video and audio metering that demodulates any VHF, UHF, or CATV channel (54 - 806 MHz). One MM806 may be added to a headend installation with the combined headend output sampled with a directional coupler and the sampled output fed to the MM806 RF input. Any NTSC channel from the headend can be selected and monitored on the MM806. The desired off-air VHF or UHF television channel from 2 through 69 or CATV channel from 2 through 125 is selected by a front panel pushwheel switch and associated slide switch. The MM806 provides a standard negative sync video output at a nominal level of 1 Vp-p. Also provided is an audio output signal. Two modulation meters simultaneously provide readout of video modulation percentage and audio deviation percentage of 25 kHz peak deviation. As previously described, channel selection switches are located on the front panel. The RF Input is through an "F" type connector located on the rear panel. Unbalanced Audio Output is through a rear panel RCA type phono connector. The unit is powered through the attached AC line cord by a nominal 115 VAC, 60 Hz source of power. Specifications RF Input Frequency: 54 - 806 MHz, Off-Air: Channels 2 - 69. Unbalanced Audio Output is RCA phono. 5 6 Front Panel Controls and Indicators F1 F2 F3 F4 F5 MM806 MODULATION MONITOR MODE CHANNEL VIDEO AUDIO POWER BCTV CATV CATV +100 2 5 % MODULATION 0 20 40 60 80 100 % MODULATION 0 20 40 60 80 100 DEPTH OF MODULATION 100% = 25 kHz PEAK Figure 1 F1 - POWER Indicator Lights when the unit is connected to the required source of AC power. The third position sets a leading "1" for CATV channels from 100 through 125. Units should be spaced apart by at least one panel height wherever possible, and some air movement is advisable in enclosed rack cabinets. Excessive heat will shorten component life and system performance will be degraded without proper cooling. TYPICAL HEADEND MONITOR APPLICATION Choose a Tap value so the video carrier level to the MM806 is in the 0 dBmV to +15 dBmV range. Headend Combiner Modulators Directional Coupler Tap Combined Output IN IN OUT To Distribution 1-WAY TAP -30dB 5-1000 MHz -130dB RFI OUT TAP TAP RF Input MM806 MM806 MODULATION MONITOR MODE CHANNEL VIDEO AUDIO POWER BCTV CATV CATV +100 2 5 % MODULATION 0 20 40 60 80 100 % MODULATION 0 20 40 60 80 100 DEPTH OF MODULATION 100% = 25 kHz PEAK Figure 3 - Installation using a Directional Coupler Headend Combiner Modulators To Distribution Combined Output Output Monitor Port RF Input MM806 MM806 MODULATION MONITOR MODE CHANNEL VIDEO AUDIO POWER BCTV CATV CATV +100 2 5 % MODULATION 0 20 40 60 80 100 % MODULATION 0 20 40 60 80 100 DEPTH OF MODULATION 100% = 25 kHz PEAK Figure 4 - Installation using an Output Monitor Port Reference Chart of Off-Air and CATV Channels OFF-AIR VHF BROADCAST CHANNELS Channel Number 2 3 4 5 6 7 8 9 10 11 12 13 9 Visual Carrier Frequency (MHz) CATV CABLE TV CHANNELS Channel Designation Visual Carrier Frequency (MHz) B A N D CATV CABLE TV CHANNELS Channel Designation Visual Carrier Frequency (MHz) 55. 25 61. 25 67. 25 77. 25 83. 25 175. 25 181. 25 187. 25 193. 25 199. 25 205. 25 211. 25 B A N D L O W Standard Alphanumeric Identification 2 3 4 5 6 A-5 A-4 A-3 A-2 A-1 A B C D E F G H I 7 8 9 10 11 12 13 J K L M N O P Q R S T U V W AA BB CC DD EE FF GG HH II JJ KK LL MM NN OO PP QQ RR SS TT UU VV WW XX YY ZZ EIA/NCTA Numeric Equivalent 2 3 4 5 6 95 96 97 98 99 14 15 16 17 18 19 20 21 22 7 8 9 10 11 12 13 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 SCA 55. 25 61. 25 67. 25 77. 25 83. 25 91. 25 97. 25 103. 25 109. 25 115. 25 121. 25 127. 25 133. 25 139. 25 145. 25 151. 25 157. 25 163. 25 169. 25 175. 25 181. 25 187. 25 193. 25 199. 25 205. 25 211. 25 217. 25 223. 25 229. 25 235. 25 241. 25 247. 25 253. 25 259. 25 265. 25 271. 25 277. 25 283. 25 289. 25 295. 25 301. 25 307. 25 313. 25 319. 25 325. 25 331. 25 337. 25 343. 25 349. 25 355. 25 361. 25 367. 25 373. 25 379. 25 385. 25 391. 25 397. 25 403. 25 409. 25 415. 25 421. 25 427. 25 433. 25 439. 25 445. 25 451. 25 Standard Alphanumeric Identification AAA BBB CCC DDD EEE FFF GGG HHH III JJJ KKK LLL MMM NNN OOO PPP QQQ RRR SSS TTT UUU VVV WWW XXX EIA/NCTA Numeric Equivalent 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 SCA 457. 25 463. 25 469. 25 475. 25 481. 25 487. 25 493. 25 499. 25 505. 25 511. 25 517. 25 523. 25 529. 25 535. 25 541. 25 547. 25 553. 25 559. 25 565. 25 571. 25 577. 25 583. 25 589. 25 595. 25 601. 25 607. 25 613. 25 619. 25 625. 25 631. 25 637. 25 643. 25 649. 25 655. 25 661. 25 667. 25 673. 25 679. 25 685. 25 691. 25 697. 25 703. 25 709. 25 715. 25 721. 25 727. 25 733. 25 739. 25 745. 25 751. 25 757. 25 763. 25 769. 25 775. 25 781. 25 787. 25 793. 25 799. 25 OFF-AIR UHF BROADCAST CHANNELS Channel Number Visual Carrier Frequency (MHz) 471. 25 477. 25 483. 24 489. 25 495. 25 501. 25 507. 25 513. 25 519. 25 525. 25 531. 25 537. 25 543. 25 549. 25 555. 25 561. 25 567. 25 573. 25 579. 25 585. 25 591. 25 597. 25 603. 25 609. 25 615. 25 621. 25 627. 25 633. 25 639. 25 645. 25 651. 25 657. 25 663. 25 669. 25 675. 25 681. 25 687. 25 693. 25 699. 25 705. 25 711. 25 717. 25 723. 25 729. 25 735. 25 741. 25 747. 25 753. 25 759. 25 765. 25 771. 25 777. 25 783. 25 789. 25 795. 25 801. 25 M I D 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 H Y P E R H I G H S U P E R H Y P E R 10 Service / If You Need To Call For Help Should you want to return your unit for service, package the unit carefully using the original carton or other suitable container. Write your return address clearly on the shipping carton and on an enclosed cover letter describing the service required, symptoms or problems. Also include your daytime telephone number and a copy of your proof of purchase. DRAKE COMPANY Limited Warranty and returned to you. SERVICE INFORMATION You may contact the R. L. DRAKE Service Department for additional information or assistance by calling +1 (937) 746-6990, Monday through Friday, between 8:00 A. M. [. . . ] Some states do not allow limitations on how long an implied warranty lasts or do not allow the exclusions or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from state to state. Customer Service and Parts Telephone: +1 (937) 746-6990 Telefax: +1 (937) 743-4576 World Wide Web Site: http://www. rldrake. com R. L. Customer Service and Parts Telephone: +1 (937) 746-6990 Telefax: +1 (937) 743-4576 World Wide Web Site: http://www. rldrake. com MM806 Modulation Monitor Specifications Sheet For: Direct A/V Inc. MM806 MODULATION MONITOR MODE CHANNEL VIDEO AUDIO POWER BCTV CATV CATV +100 2 5 % MODULATION 0 20 40 60 80 100 % MODULATION 0 20 40 60 80 100 DEPTH OF MODULATION 100% = 25 kHz PEAK RF Input Frequency: 54 - 806 MHz, Off-Air: Channels 2 - 69. [. . . ]