User manual DRAKE DIGITAL DDC864A

[. . . ] TM DDC864A DIGITAL DOWNCONVERTER 1 2 FRONT PANEL CONTROLS and INDICATORS 12 POSITION RACK MOUNT POWER SUPPLY F1 POWER SUPPLY DDC864A PWR/ ERROR SIGNAL F2 F3 2 DDC864A PWR/ ERROR SIGNAL DUC864 PWR/ ERROR DDC864A PWR/ ERROR SIGNAL DUC864 PWR/ ERROR DDC864A PWR/ ERROR SIGNAL DUC864 PWR/ ERROR DDC864A PWR/ ERROR SIGNAL DUC864 PS8 PWR/ ERROR 5 2 5 2 1 2 5 2 1 2 5 2 1 2 5 2 1 CATV +100 CATV BC TV CATV +100 CATV BC TV CATV +100 CATV BC TV CATV +100 CATV BC TV GAIN GAIN GAIN GAIN DDC864A DOWNCONVERTER Figure 1 F1 - POWER/ERROR Indicator Lights when the unit is connected to the required source of DC power via the rear panel DC INPUT connector. A flashing condition indicates an invalid channel setting or other conditions that would cause the unit to operate on an invalid channel. [. . . ] Units should be spaced apart vertically by at least 1. 75" wherever possible, and some air movement is mandatory in enclosed rack cabinets. Excessive heat will shorten component life and performance will be degraded without proper cooling. R1 IF OUT POWER +12 V GND +5 V CONNECTIONS AND CONTROLS All connections to and from each upconverter are made through the rear panel. DESCRIPTION Figure 3 shows a typical installation utilizing the Drake DRMM12 rack with 4 DDC864A downconverters, and 4 DUC upconverters. A PS8 power supply module is used to power all units. R2 +12 V GND +5 V R3 RF IN POWER SUPPLY Figure 2 R1 - IF OUTPUT Connector This is the 44 MHz IF output. R2 - DC INPUT Connector This 3-pin connector (Male) accepts the appropriate mating DC power cable. R3 - RF IN Connector This is the downconverter RF input from an antenna or CATV feed. DDC864A DIGITAL DOWNCONVERTERS 100-240 V ~ 50/60 Hz 85 WATTS DC OUTPUTS X 8 12V GND 5V IF IN POWER +12 V GND +5 V IF OUT POWER +12 V GND +5 V IF IN POWER +12 V GND +5 V IF OUT POWER +12 V GND +5 V IF IN POWER +12 V GND +5 V IF OUT POWER +12 V GND +5 V IF IN POWER +12 V GND +5 V IF OUT POWER +12 V GND +5 V DC OUTPUT RATING. +12V:2. 5A MAX. RF OUT RF IN RF OUT RF IN RF OUT RF IN RF OUT RF IN AC POWER CONNECTOR DUC864 UPCONVERTERS Figure 3 BROADCAST TV CHANNEL INPUT FREQUENCIES CATV CHANNEL INPUT FREQUENCIES TABLE 2: BC TV VHF BROADCAST CHANNELS Channel Number 2 3 4 5 6 7 8 9 10 11 12 13 5 5 6 SPECIFICATIONS UHF BROADCAST CHANNELS Channel Number 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 Center of Channel Frequency (MHz) 473 479 485 491 497 503 509 515 521 527 533 539 545 551 557 563 569 575 581 587 593 599 605 611 617 623 629 635 641 647 653 659 665 671 677 683 689 695 701 707 713 719 725 731 737 743 749 755 761 767 773 779 785 791 797 803 Center of Channel Frequency (MHz) 57 63 69 79 85 177 183 189 195 201 207 213 RF INPUT Frequency Range: 54 to 806 MHz; OFF-AIR channels 2 to 69, Input level Range: -25 dBmV to +30 dBmV. Impedance: 75 Ohms, return loss of 8 dB Noise Figure: 10 dB, maximum Image Rejection: >75 dB. Output IF Frequency: Level: Impedance: Frequency Stability: Channel Bandwidth: SSB Phase Noise: Amplitude Flatness (6 MHz Channel): 44 MHz. ±1 dB over 4 MHz GENERAL DC Power Input: +12 V ±5% @ 150 mA . (0. 31 Kg). Specifications subject to change without notice or obligation. WARRANTY THREE YEAR LIMITED WARRANTY 7 R. L. DRAKE COMPANY warrants to the original purchaser this product shall be free from defects in material or workmanship for three (3) years from the date of original purchase. DRAKE COMPANY or an authorized Drake service facility will provide, free of charge, both parts and labor necessary to correct defects in material and workmanship. To obtain such warranty service, the original purchaser must: (1) Retain invoice or original proof of purchase to establish the start of the warranty period. [. . . ] 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) 806-1576 WORLD WIDE WEB SITE: http://www. rldrake. com [. . . ]