DRAKE VM2050 Manuel utilisateur

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Instruction Manual
® is a registered trademark of the R.L. Drake Holdings LLC
Printed in China.
®
VM2050/VM2551
Commercial Video Modulator
(For use in NTSC systems)
Rev: 20151111
1002412A/1002423A
VM SERIES VIDEO MODULATOR
© Copyright 2015 R.L. Drake Holdings LLC P/N: 651232400B
2
1. Read Instrucons—All the safety and operang instrucons should be read before
the product is operated.
2. Retain Instrucons—The safety and operang instrucons should be retained for
future reference.
3. Heed Warnings—All warnings on the product and in the operang instrucons
should be adhered to.
4. Follow Instrucons—All operang and use instrucons should be followed.
5. Cleaning—Unplug this product from the wall outlet before cleaning. Do not use
liquid cleaners or aerosol cleansers. Use a damp cloth for cleaning.
6. Aachments—Do not use aachments that are not recommended by the product
manufacturer as they may cause hazards.
7. 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 swim-
ming pool; and the like.
8. Accessories—Do not place this product on an unstable cart, stand, tripod, bracket,
or table. The product may fall, causing serious injury to a child or adult, and serious
damage to the product. Use only with a cart, stand, tripod, bracket, or table recom-
mended by the manufacturer, or sold with the product. Any mounng of the product
should follow the manufacturer’s instrucons, and should use a mounng accessory
recommended by the manufacturer.
9. A product and cart combinaon should be moved with care. Quick stops, excessive
force, and uneven surfaces may cause the product and cart combinaon to overturn.
10. Venlaon—Slots and openings in the cabinet are provided for venlaon and to
ensure reliable operaon of the product and to protect it from overheang, and these
openings must not be blocked or covered. The openings should never be blocked by
placing the product on a bed, sofa, rug, or similar surface. This product should not be
placed in a built-in installaon such as bookcase or rack unless proper venlaon is
provided or the manufacturer’s instrucons have been adhered to.
11. Power Sources—This product should be operated only from the type of power
source indicated on the marking label. If you are not sure of the type of power sup-
plied to your home, consult your product dealer or local power company. For products
intended to operate from baery power, or other sources, refer to the operang
instrucons.
12. Grounding or Polarizaon—This product may be equipped with a polarized
alternangcurrent line plug (a plug having one blade wider than the other). This plug
will t into the power outlet only one way. This is a safety feature. If you are unable to
insert the plug fully into the outlet, try reversing the plug. If the plug should sll fail to
t, contact your electrician to replace your obsolete outlet. Do not defeat the safety
purpose of the polarized plug. Alternate Warnings—If this product is equipped with
a three-wire grounding-type plug, a plug having a third (grounding) pin, the plug will
only t into a grounding-type power outlet. This is a safety feature. If you are unable
to insert the plug into the outlet, contact your electrician to replace your obsolete
outlet. Do not defeat the safety purpose of the grounding-type plug.
13. Power-Cord Protecon—Power-supply cords should be routed so that they are
not likely to be walked on or pinched by items placed upon or against them, paying
parcular aenon to cords at plugs, convenience receptacles, and the point where
they exit from the product.
14. Outdoor Antenna Grounding—If an outside antenna or cable system is connect-
ed to the product, be sure the antenna or cable system is grounded so as to provide
some protecon against voltage surges and built-up stac charges. Arcle 810 of the
Naonal Electrical Code, ANSI/NFPA 70, provides informaon with regard to proper
grounding of the mast and supporng structure, grounding of the lead-in wire to an
antenna discharge unit, size of grounding conductors, locaon of antenna-discharge
unit, connecon to grounding electrodes, and requirements for the grounding elec-
trode. See Figure A.
15. Lightning—For added protecon for this product during a lightning storm, or when
it is le unaended and unused for long periods of me, unplug it from the wall outlet
and disconnect the antenna or cable system. This will prevent damage to the product
due to lightning and power-line surges.
16. Power Lines—An outside antenna system should not be located in the vicinity of
overhead power lines, other electric light or power circuits, where it can fall into such
power lines or circuits.
17. Overloading—Do not overload wall outlets, extension cords, or integral conve-
nience receptacles as this can result in a risk of re or electric shock.
18. Object and Liquid Entry—Never push objects of any kind into this product through
openings as they may touch dangerous voltage points or short-out parts that could
result in a re or electric shock. Never spill liquid of any kind on the product.
19. Servicing—Do not aempt to service this product yourself as opening or removing
covers may expose you to dangerous voltage or other hazards. Refer all servicing to
qualied service personnel.
20. Damage Requiring Service—Unplug this product from the wall outlet and refer
servicing to qualied service personnel under the following condions:
a. When the power-supply cord or plug is damaged,
b. If liquid has been spilled, or objects have fallen into the product,
c. If the product has been exposed to rain or water,
d. If the product does not operate normally by following the operang instrucons.
Adjust only those controls that are covered by the operang instrucons as an im-
proper adjustment of other controls may result in damage and will oen require ex-
tensive work by a qualied technician to restore the product to its normal operaon,
e. If the product has been dropped or damaged in any way, and
f. When the product exhibits a disnct change in performance—this indicates a need
for service.
21. Replacement Parts—When replacement parts are required, be sure the service
technician has used replacement parts specied by the manufacturer or have the
same characteriscs as the original part. Unauthorized substutes may result in re,
electric shock or other hazards.
22. Safety Check—Upon compleon of any service or repairs to this product, ask the
service technician to perform safety checks to determine that the product is in proper
operang condion.
23. Wall or Ceiling Mounng—The product should be mounted to a wall or ceiling
only as recommended by the manufacturer.
24. Heat—The product should be situated away from heat sources such as radiators,
heat registers, stoves, or other products (including ampliers) that produce heat.
NOTE TO CATV SYSTEM INSTALLERS:
THIS REMINDER IS PROVIDED TO CALL THE CATV
SYSTEM INSTALLER’S ATTENTION TO ARTICLE 820 - 40
OF THE NEC WHICH 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.
FIGURE A
Example of antenna grounding as per Naonal Electrical Code, ANSI/NFPA 70
ANTENNA
LEAD IN
WIRE
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING
CONDUCTORS
(NEC SECTION 810-21)
POWER SERVICE GROUNDING ELECTRODE
SYSTEM (NEC ART 250, PART H)
ELECTRIC
SERVICE
EQUIPMENT
GROUND CLAMPS
GROUND CLAMP
NEC - NATIONAL ELECTRIC CODE
WARNING: TO PREVENT FIRE OR
ELECTRICAL SHOCK DO NOT
EXPOSE TO RAIN OR MOISTURE
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE POWER SUPPLY COVERS
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
! CAUTION !
CAUTION STATEMENT
An appliance and cart combinaon should be moved with care. Quick stops, excessive
force and uneven surfaces may cause the appliance and cart combinaon to overturn.
The exclamaon point within an equilateral triangle is intended to alert the user to
the presence of important operang and maintenance (servicing) instrucons in the
literature accompanying the appliance.
The lightning ash with arrow head symbol, within an equilateral triangle, is intended to
alert the user to the presence of uninsulated “dangerous voltage” within the product’s
enclosure that may be of sucient magnitude to constute a risk of electric shock to
persons.
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE. DO NOT OPEN THE CABINET, REFER
SERVICING TO QUALIFIED PERSONNEL ONLY.
CAUTION:
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS (POLARIZED) PLUG WITH AN
EXTENSION CORD RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN
BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
Important Safety Instructions
3
Importantes De Sécurité
1. Lire les direcves—Toutes les direcves de sécurité et d’ulisaon devraient être
lues avant de mere l’appareil en opéraon.
2. Conserver les direcves—Les direcves de sécurité et d’ulisaon devraient être
conservées pour consultaon future.
3. Tenir compte des averssements—Tous les averssements apparaissant sur l’appar-
eil et dans les consignes d’ulisaon devraient être respectés.
4. Suivre les direcves—Toutes les direcves d’opéraon et d’ulisaon devraient
être suivies.
5. Neoyage—Débrancher l’appareil de la prise électrique murale avant le neoyage.
Ne pas uliser de neoyants liquides ou aérosols. Employer un linge humide pour le
neoyage.
6. Fixaon—Ne pas uliser d’autres xaons que celles recommandées par le manu-
facturier; elles pourraient être source de dangers.
7. Eau et humidité—Ne pas uliser cet appareil près de l’eau. Par exemple, près d’une
baignoire, d’un bac de lavage, d’un évier de cuisine ou d’une cuvee de lessivage; dans
un sous-sol humide; ou à proximité d’une piscine; et autres environnements similaires.
8. Accessoires—Ne pas installer cet appareil sur un chariot, un socle, un trépied, un
support ou une table instables. Lappareil pourrait tomber, entraînant des blessures
graves à un enfant ou à un adulte, et des dommages importants à l’appareil. Employer
seulement avec un chariot, un socle, un trépied, un support, ou une table recom-
mandés par le fabricant ou vendu avec l’appareil. Toute installaon de l’appareil
devrait être conforme aux direcves du manufacturier et devrait uliser des acces-
soires d’installaon recommandés par celui-ci.
9. Un chariot supportant l’appareil devrait être déplacé avec précauon. Les arrêts
brusques, la force excessive et les surfaces inégales peuvent renverser le chariot.
10. Venlaon—Des fentes et ouvertures dans le châssis sont prévues pour la
venlaon de l’appareil, pour en assurer la abilité d’opéraon et le protéger contre
la surchaue. Ces ouvertures ne doivent pas être bloquées ou recouvertes. Ces
ouvertures ne devraient jamais être bloquées en plaçant l’appareil sur un lit, un sofa,
une couverture, ou une surface semblable. Cet appareil ne devrait pas être installé
dans un meuble encastré comme une bibliothèque ou une étagère à moins de lui
fournir une venlaon adéquate ou que l’installaon soit conforme aux direcves du
manufacturier.
11. Sources d’alimentaon électrique—Cet appareil devrait être ulisé seulement
avec le type d’alimentaon électrique inscrite sur l’équee. Si vous n’êtes pas certain
du type d’alimentaon électrique fourni à votre maison, consultez le vendeur de l’ap-
pareil ou l’entreprises d’énergie locale. Pour des appareils alimentés par une baerie
ou d’autres sources, se référer aux consignes d’ulisaon.
12. Mise à la terre ou Polarisaon—Cet appareil est équipé avec un cordon d’ali-
mentaon à trois ls. Il est a brancher sur une prise ayant un connecteur a la terre.
Assurez-vous que la connecon a la terre ne manque pas.
13. Protecon du cordon d’alimentaon—Les cordons d’alimentaon devraient être
disposés de façon à ce qu’on ne puisse marcher dessus ou qu’ils soient suscepbles
d’être coincés par des arcles placés sur ou contre eux. Une aenon parculière doit
être portée aux ches, prises de courant, et aux points où ils sortent de l’appareil.
14. Mise à la terre de l’antenne extérieure—Si un système extérieur d’antenne ou de
câble est relié à l’appareil, s’assurer que le système d’antenne ou de câble est muni
d’une mise à la terre an de fournir une certaine protecon contre les surtensions et
les charges d’électricité staque. Larcle 810 du code électrique naonal, ANSI/NFPA
70, fournit l’informaon nécessaire en ce qui concerne la mise à la terre appropriée du
mât et de la structure porteuse, la mise à la terre du câble de connexion à une unité
de décharge d’antenne, le calibre des conducteurs de mise à la terre, la locaon de
l’unité de décharge d’antenne, le raccordement aux électrodes de mise à la terre et les
spécicaons pour les électrodes de mise à la terre.
Voir la gure A.
15. Foudre—Pour une protecon supplémentaire de cet appareil pendant un orage
électrique, ou quand il est laissé sans surveillance et inulisé pendant de longues
périodes, le débrancher de la prise électrique murale et déconnecter le système
d’antenne ou de câble. Ceci préviendra les dommages à l’appareil dus à la foudre et
aux surtensions.
16. Lignes électriques—Un système d’antenne extérieur ne devrait pas être situé à
proximité de lignes électriques aériennes ou de tout autre circuit électrique, où il
pourrait tomber sur de tels circuits ou lignes électriques. Lors de l’installaon d’un
système d’antenne extérieur, d’extrêmes précauons devraient être prises an de
prévenir tout contact avec des lignes ou circuits électriques. Entrer en contact avec de
tels circuits ou lignes électriques pourrait être fatal.
17. Surcharge—Ne pas surcharger les prises de courant murales, les rallonges élec-
triques ou les prises de courant intégrées. Un risque d’incendie ou de choc électrique
pourrait résulter d’une telle surcharge.
18. Inseron d’objet ou de liquide—Ne jamais insérer d’objet par les ouvertures de
cet appareil. Il pourrait toucher des points de voltage dangereux ou court-circuiter des
pièces, ce qui pourrait résulter en incendie ou en choc électrique. Ne jamais verser de
liquide sur l’appareil.
19. Entreen—Ne pas essayer de faire soi-même l’entreen de cet appareil. En ouvrir
ou en rerer les couvercles pourrait vous exposer à des voltages dangereux ou à d’au-
tres dangers. Coner tout entreen à un personnel de service qualié.
20. Dommage exigeant un entreen—Débrancher cet appareil de la prise de courant
électrique et coner l’entreen au personnel de service qualié dans les éventualités
suivantes:
a. Quand le cordon d’alimentaon ou sa che sont endommagés,
b. Si des objets sont tombés dans l’appareil, ou si du liquide y a été renversé,
c. Si l’appareil a été exposé à la pluie ou à l’eau,
d. Si l’appareil ne fonconne pas normalement en suivant les consignes d’ulisaon.
Ajuster seulement les commandes qui sont menonnées dans le guide d’opéraon.
Un mauvais ajustement des autres commandes pourrait causer des dommages à
l’appareil et souvent exiger un travail supplémentaire de la part d’un technicien
qualié pour remere l’appareil en état normal d’opéraon.
e. Si l’appareil a été échappé ou endommagé de n’importe quelle façon, et
f. Quand l’appareil montre un changement notable de performance – ceci indique
qu’un entreen est nécessaire.
21. Pièces de rechange—Si des pièces de rechange sont nécessaires, s’assurer que le
technicien de service a employé des pièces de rechange spéciques du manufacturier
ou ayant les mêmes caractérisques que les pièces originales. L’ulisaon de pièces
de rechange non autorisées pourrait résulter en incendie, choc électrique ou autres
dangers.
22. Véricaon de sécurité—À la suite de toute réparaon ou entreen de cet appar
-
eil, demander au technicien de service d’exécuter des véricaons de sécurité an de
s’assurer que l’appareil est en condion normale de fonconnement.
23. Montage au mur ou au plafond—Lappareil ne devrait être monté au mur ou au
plafond qu’uniquement de la façon recommandée par le manufacturier.
24. Chaleur—Lappareil devrait être situé loin de sources de chaleur telles que des
radiateurs, des registres de chaleur, des fourneaux, ou d’autres appareils (y compris
amplicateurs) produisant de la chaleur.
NOTE AUX INSTALLATEURS DE SYSTÈME DE CATV:
CE RAPPEL EST FOURNI POUR PORTER À LATTENTION DES
INSTALLATEURS DE SYSTÈME DE CATV, LARTICLE 820 - 40 DU
NEC QUI DONNE DES DIRECTIVES POUR UNE MISE À LA TERRE
APPROPRIÉE ET, EN PARTICULIER, SPÉCIFIE QUE LE CÂBLE DE
MISE À LA TERRE DEVRAIT ÊTRE RACCORDÉ AU SYSTÈME DE
MISE À LA TERRE DU BÂTIMENT LE PLUS PRÈS POSSIBLE DE
L’ENTRÉE DU CÂBLE.
FIGURE A
Exemple de mise à la terre d’antenne selon le Code Électrique Naonal, ANSI/NFPA 70
ANTENNA
LEAD IN
WIRE
UNITÉ DE DÉCHARCHE D’ANTENNE
(NEC SECTION 810-20)
CONDUCTEURS DE MISE À LA TERRE
(NEC SECTION 810-21)
SYSTÈME DE MISE À LA TERRE DU BÂTIMENT
(NEC ART 250, PART H)
APPAREILS
ÉLECTRIQUES
DE SERVICE
ATTACHES DE
MISE À LA TERRE
ATTACHES DE
MISE À LA TERRE
NEC - CODE ÉLECTRIQUE NATIONAL
AVERTISSEMENT: AFIN D’ÉVITER TOUT RISQUE D’INCENDIE
OU D’ÉLECTROCUTION, NE PAS EXPOSER CET APPAREIL À LA
PLUIE OU À L’HUMIDITÉ.
RISQUE DE CHOC ELECTRIQUE -
NE PAS OUVRIR
ATTENTION: POUR RÉDUIRE LE RISQUE D’ÉLECTROCUTION, NE PAS
ENLEVER LE DOS DE LAPPAREIL NI OUVRIR LE BOÎTIER. AUCUNE PIÈCE N’EST
RÉPARABLE PAR L’UTILISATEUR À L’INTÉRIEUR. SE RÉFÉRER UNIQUEMENT À
DES TECHNICIENS QUALIFIÉS POUR L’ENTRETIEN.
! AVERTISSEMENT !
Une combinaison de l’appareil et chariot doit être déplacé avec précauon. Des arrêts
brusques, une force excessive et des surfaces inégales peuvent causer la combinaison
de l’appareil et le chariot.
Le point d’exclamaon à l’intérieur d’un triangle équilatéral est desné à alerter
l’ulisateur sur la présence d’opéraons d’entreen importantes au sujet desquelles des
renseignements se trouvent dans le manuel d’instrucons.
Le symbole de l’éclair à l’intérieur d’un triangle équilatéral est desné à alerter
l’ulisateur sur la présence d’une “tension dangereuse” non isolée dans le boîer du
produit. cee tension est susante pour provoquer l’électrocuon de personnes.
ATTENTION DÉCLARATION
AVERTISSEMENT:
AFIN D’ÉVITER TOUT RISQUE D’INCENDIE OU D’ÉLECTROCUTION, NE PAS
EXPOSER CET APPAREIL À LA PLUIE OU À L’HUMIDITÉ. NE PAS OUVRIR LE
BOÎTIER, CONFIER TOUS TRAVAUX À DU PERSONNEL TECHNIQUE QUALIFIÉ.
CAUTION:
POUR PREVENIR LES CHOCS ELECTRIQUES, NE PAS UTILISER CETTE FICHE
POLARISEE AVEC UN PROLONGATEUR, UNE PRISE DE COURANT OU UNE
AUTRE SORTIE DE COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES A
FOND SANS EN LAISSER AUCUNE PARTIE A DECOUVERT.
4
Table of Contents / Description / Specifications
2 Caution Statements
2 Important Safety Instructions
4 Table of Contents / Description / Specifications
5 Front/Rear Panel Controls and Indicators
TABLE OF CONTENTS
The R.L Drake VM2050 and VM2550 Video Modulators are high quality, vesgial
sideband units with synthesized visual and aural carriers. They are designed to accept
NTSC video and audio baseband signals from a satellite receiver or similar equipment.
Front panel video and audio level controls with accompanying modulaon
indicators permit easy setup of the proper modulaon levels. The A/V rao and
RF output level controls are also provided on the front panel. A rear panel EAS
alternate IF input is also provided.
Synthesized operaon provides complete frequency agility, allowing front panel
selecon of any standard CATV channel from 2 to 78 (VM2551) and T7 to 78
(VM2050) . FCC required osets for aeronaucal channels are automacally
provided for each channel that requires an oset. For special applicaons, IRC or
HRC CATV frequencies or o-air broadcast frequencies can be selected from the
front panel.
A high quality IF SAW lter with FCC predistoron eliminates adjacent channel
interference and provides opmum delay characteriscs.
A manual or auto-switching alternate IF input, labeled EAS input, is provided for
connecon of an Emergency Alert System 44 MHz IF signal. When the EAS IF signal
appears at the EAS input, the main video and audio modulated IF is replaced by
the EAS input signal.
The EAS/Alternate IF feature allows a choice between manual and automac
selecon of the EAS/ALT IF input signal. This is done through a 3 posion terminal
strip on the rear of the unit. In the manual mode the EAS/ALT IF feature is
acvated by a contact closure switch, which completes a ground connecon. In
the automac mode, two posions on the terminal strip are jumpered together
enabling an automac detecon circuit in the unit. When an EAS/ALT IF signal is
routed to the EAS/ALT port the unit automacally switches to that alternate signal.
DESCRIPTION
SPECIFICATIONS - VM2050 / VM2551
6 Operation
7 Adjustments
8 Channel Assignments
VIDEO INPUT
Connector:
Impedance:
Return Loss:
Video Input Level:
Signal-to-Noise Rao:
Dierenal Gain:
Dierental Phase:
Over-modulaon Indicator:
L/C Delay:
“F” Female
75 Ω
18 dB
0.7 volt Peak-to-Peak
58 dB
2.0%
1.0 degree
87 to 92%
Per FCC Requirements
RF OUTPUT
Connector:
Impedance:
Return Loss:
Channel Modes:
Power Level Range:
Video Flatness:
Carrier-to-Noise:
Broadband Noise:
Spurious Outputs:
Aural/Visual Carrier Rao:
“F” Female
75 Ω
12 dB
CATV (STD,IRC,HRC) UHF, VHF
(SUB VM2050 only)
+50 to +60 dBmV (in 0.2 dB increments)
fv-0.5 to fv+4.2 MHz : 1.5 dB p/v
-63 dB
-77 dBc
-63 dBc
-15 ± 5 dB
GENERAL
AC Power:
Fuse:
Temperature Range:
Dimensions (WxDxH):
Weight:
117 VAC ± 10%, 60 Hz, 23W max
0.4A Type T 250 V
32 to 122 °F (0 to 50 °C)
19.0 x 14.25 x 1.75 in
(482.6 x 361.95 x 44.45 mm)
7 lbs. (3.18 kg)
MONO AUDIO
Connector:
Input Impedance:
Input Level:
Frequency Range:
Frequency Response:
Total Harmonic Distoron:
Signal-to-Noise Rao:
Over-modulaon Threshold:
RCA
Greater than 10k Ω, unbalanced
0.5 to 4.0 volt Peak-to-Peak
50 Hz to 15 kHz
± 0.5 dB
1% @ 25 kHz deviaon
59 dB
25 ± 2 kHz peak deviaon
IF
Input/Output Connector:
Aural Frequency:
Visual Frequency:
“F” Female
41.25 MHz
45.75 MHz
Composite IF Output
Aural:
Visual:
+20 dBmV
+35 dBmV
Input/Output Impedance:
Input/Output Return Loss:
75 Ω
16/15 dB
EAS/Alternave IF
Connector:
Input Level:
“F” Female
+30 dBmV @ 45.75 MHz
Switch Isolaon: Greater than 60dB
VM SERIES VIDEO MODULATOR
5
Front and Rear Panel Controls and Indicators
Operating Controls
All operating controls and indicators for the modulator are located on, or are accesible from the front panel.
[1] EAS/ALT INDICATOR: Lights Red when EAS/ALT is active.
[2] VIDEO OVERMODULATION LED: Lights when modulation is above 87.5%
[3] VIDEO MODULATION LEVEL: Adjusts percentage of modulation.
[4] AURAL-TO-VISUAL CARRIER RATIO: Controls amplitude of aural RF carrier relative to visual RF carrier.
[5] AUDIO MODULATION LEVEL: Adjusts aural carrier modulation.
[6] AUDIO OVERMODULATION LED: Lights when peak deviation of aural carrier is over 25 kHz.
[7] DISPLAY MODE BUTTON: Used to scroll through channel configuration, output level and modes.
[8] CHANNEL, CHANNEL CONFIGURATION/OUTPUT LEVEL DISPLAY
[9] UP/DOWN BUTTONS: Used to scroll through the channel, channel configuration and output level modes.
[10] ENTER BUTTON: Evokes the current settings in the channel/output display when depressed.
[11] STEREO INDICATOR: Not Used
Note: All connections to the unit are made at the rear panel.
[1] RF OUTPUT: +60dBmV
[2] IF INPUT: +35 dBmV IF Input
[3] EAS/ALT IF INPUT: Emergency Alert or Alternate IF Input
[4] IF OUT: +35 dBmV IF Outpout (See note #8 below)
[5] EAS/ALT IF TERMINAL: EAS/ALT IF mode selection (see page 7)
[6] AUDIO INPUT: Audio input (standard)
[7] VIDEO INPUT: 1 Volt PP video input
[8] IF LOOP CABLE: The IF loop cable (supplied) must be installed to provide RF continuity. The modulator will not have
an RF output without the IF loop installed.
[1] [6] [5] [4] [3] [2] [7] [8] [9]
Figure 1 - Front Panel
[11] [12]
[1] [2] [3] [4] [6] [7]
[5]
Figure 2 - Rear Panel
[8]
Operation6
Opera n
Display Mode
This bu
on scrolls through the selec of Channel, Channel Congura Output Level mode in this order.
The res
g state (default) of the modulator’s display mode is the channel number.
Channel
The output channel is selected by pressing the UP or DN bu on when in the channel display mode.
The LED display will blink indica
g a transi state.
The actual channel is not changed un
the ENTER bu on is pressed.
If the ENTER bu
on is not pressed, the display will return to res g state a er 30 seconds.
Pressing and holding the UP or DN bu
on will allow for faster scrolling of channel.
All internal a
enuators are temporarily set for maximum a enua during channel change (output is muted).
Channel Configura
The Channel Congura is changed by pressing the UP or DN bu on when in the Channel Congura display mode.
The LED display will blink indica
g a transi state.
The channel congura
is not changed un the ENTER bu on is pressed.
If the ENTER bu
on is not pressed, the display will return to res g state a er 30 seconds.
If the mode is to be changed and it is not a valid mode for the exis
g channel, when the ENTER bu on is pressed, the new
mode will be selected, and the channel will default to channel-2.
The available Channel Congura
are as follows:
C = Standard (default from factory)
I = IRC
H = HRC
U = Broadcast VHF/UHF
Error
The Display will show a ashing "EE1" if the PLL1 is not locked.
The Display will show a ashing "EE2" if the PLL2 is not locked.
The Display will show a ashing "EE3" if both PLL1 and PLL2 are not locked.
All internal a
enuators are automa cally set for maximum a enua in any of the above condi (output is muted).
Please contact our Service Department should any of these errors condi
occur.
VM2050 (only) Subchannel display in standard
and
7
Adjustments
Adjustments
VIDEO LEVEL: With the intended signal source connected and a representa ve video program present turn the Video
Level Adjust control clockwise un
the Video Overmodula light just ashes, then back o slightly.
Alterna
vely, while watching the picture on a good TV monitor, adjust the control to the highest (clockwise)
level that does NOT cause the highlights (white por
of the picture) to become “washed out”.
AUDIO LEVEL: Turn the Audio Level Adjust control clockwise un the Audio Overmodula light just ashes slightly on
the loudest peaks of the audio program material.
OUTPUT LEVEL: The Output Level is adjusted by pressing the UP or DN bu
on when in the Output Level display mode.
The LED display will blink indica
g a transi on state. The output level is not changed un the ENTER
bu
on is pressed. If the ENTER bu on is not pressed, the display will return to its res g state a er 30
seconds. Pressing and holding the UP or DN bu
on will allow for faster scrolling. The Level increments in
0.2 dB steps. Output level accuracy is typically +/- 1 dB of display, +/- 2 dB worst case.
A/V CARRIER RATIO: To adjust the aural-to-visual carrier ra
o, tune the RF indicator device to the aural carrier frequency
and adjust the Aural Carrier control to obtain the desired aural carrier level. Recommended ra
is
-15 dB.
EAS/ALT IF:
AUTOMATIC: Connect a jumper to the terminal strip auto posi
EAS will switch on when
a +30 dBmV EAS IF signal is detected.
MANUAL: EAS is ac
ve with a ground connec on the manual posi of the terminal strip.
Channel Assignments
8
69
70
71
72
73
74
75
76
77
78
HRC
72.00
54.00
60.00
66.00
78.00
84.00
174.00
180.00
186.00
192.00
198.00
204.00
210.00
120.00
126.00
132.00
138.00
144.00
150.00
156.00
162.00
168.00
216.00
222.00
228.00
234.00
240.00
246.00
252.00
258.00
264.00
270.00
276.00
282.00
288.00
294.00
300.00
306.00
312.00
318.00
324.00
330.00
336.00
342.00
348.00
354.00
360.00
366.00
372.00
378.00
384.00
390.00
396.00
402.00
408.00
414.00
420.00
426.00
432.00
438.00
444.00
450.00
456.00
462.00
468.00
474.00
480.00
486.00
492.00
498.00
504.00
510.00
516.00
522.00
528.00
534.00
540.00
546.00
EIA CH# /
Output Channel
Switch Setting
01
02
03
04
05
06
07
08
09
10
11
12
13
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
Visual Carrier
Frequency (MHz)
STD IRC
N/A
55.25
61.25
67.25
77.25
83.25
175.25
181.25
187.25
193.25
199.25
205.25
211.25
121.2625
127.2625
133.2625
139.25
145.25
151.25
157.25
163.25
169.25
217.25
223.2625
229.2625
235.2625
241.2625
247.2625
253.2625
259.2625
265.2625
271.2625
277.2625
283.2625
289.2625
295.2625
301.2625
307.2625
313.2625
319.2625
325.2625
331.275
337.2625
343.2625
349.2625
355.2625
361.2625
367.2625
373.2625
379.2625
385.2625
391.2625
397.2625
403.25
409.25
415.25
421.25
427.25
433.25
439.25
445.25
451.25
457.25
463.25
469.25
475.25
481.25
487.25
73.25
79.25
85.25
TABLE 1:
CATV
493.25
499.25
505.25
511.25
517.25
523.25
529.25
535.25
541.25
547.25
T7 7
T8 13
T9 19
T10 25
T11 31
T12 37
T13 43
T14 49
Sub Band Channels
Channel Standard Video
9 Channel Assignments, continued
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
14
15
16
17
18
19
20
21
22
23
24
25
26
27
UHF BROADCAST CHANNELSUHF BROADCAST CHANNELS
UHF BROADCAST CHANNELSUHF BROADCAST CHANNELS
UHF BROADCAST CHANNELS
Channel Number
55.25
61.25
67.25
77.25
83.25
175.25
181.25
187.25
193.25
199.25
205.25
211.25
2
3
4
5
6
7
8
9
10
11
12
13
Visual Carrier
Frequency (MHz)
VHF BROADCAST CHANNELSVHF BROADCAST CHANNELS
VHF BROADCAST CHANNELSVHF BROADCAST CHANNELS
VHF BROADCAST CHANNELS
Channel Number
TABLE 2:
BROADCAST TV
10 Repairs and Returns
A Return Material Authorization (RMA) Number is required on ALL PRODUCT RETURNS (regardless of whether the
product is being returned for repair or for credit). Product that is received at the factory without an RMA Number will be
returned to the sender, unopened.
RMA Numbers must be used when returning product for credit or repair. Use of RMA Numbers will ensure efcient
processing. When needing to return your product to R.L. Drake Holdings, LLC., please follow these simple steps listed
below (in the order that they appear).
Service
1. Contact R.L. Drake Holdings, LLC.’s Service Department
in one of three ways:
Phone: 732-313-4256
Fax: 732-679-4022
2. Request from Drake Service a copy of the Product Return
Authorization Form.
3. Complete the Product Return Authorization Form fully.
4. Return the completed Product Return Authorization Form
to the Drake Service Department using one of the contact
methods listed in Step 1.
5. After completing Steps 1 through 4, an RMA Number will
be assigned to you.
6. Securely pack the product and mark the box with your
RMA Number. If shipping multiple boxes, all boxes must
be marked with the RMA Number. Place the RMA Number
near the return address in large, bold print (approx. 2” in
height).
1. Contact R.L. Drake Holdings, LLC.’s Service Department
in one of three ways:
Phone: 937-746-6990
Fax: 937-806-1510
2. Request from Drake Service a copy of the Product Return
Authorization Form.
3. Complete the Product Return Authorization Form fully.
4. Return the completed Product Return Authorization Form
to the Drake Service Department using one of the contact
methods listed in Step 1.
5. After completing Steps 1 through 4, an RMA Number will
be assigned to you.
6. Securely pack the product in its original undamaged box
(returning the product without its original packaging in
good, new condition may cause the incursion of additional
fees). Pack this box within another shipping container or
box. Mark the shipping box or container with your RMA
Number. Place the RMA Number near the return address
in large, bold print (approx. 2” in height).
Ship your “CREDIT RETURNS ONLY” return to:
R.L. Drake Holdings, LLC.
Attn: Product Credit Returns
One Jake Brown Road
Old Bridge, NJ 08857
Ship your “SERVICE REPAIR ONLY” return to:
R.L. Drake Holdings, LLC.
Attn: Product Service Returns
One Jake Brown Road
Old Bridge, NJ 08857
SERVICE REPAIRS ONLY CREDIT RETURNS ONLY
*NOTE: All Credit Returns are subject to a 15% Restock Fee
*NOTE: All shipments are to be PRE-PAID by the sender. NO COD’s will be accepted.
IF YOU NEED TECHNICAL HELP
Call our Customer Service/Technical Support line at +1 (937) 746-6990 weekdays between 8:00 A.M. and 4:00 P.M. Eastern Standard
Time. Please have the unit’s serial number available. We will also need to know the specics of any other equipment connected to the
unit. When calling, please have the unit up and running, near the phone if possible. Our technician(s) will likely ask certain questions to
aid in diagnosis of the problem. Also, have a voltmeter handy, if at all possible.
DRAKE also provides technical assistance by
Fax: (937) 806-1510
Many of the products that are sent to us for repair are in perfect working order when we receive them. For these units, there is a
standard checkout fee that will be charged. Please perform whatever steps are applicable from the product’s Instruction Manual before
calling or writing as this could save unnecessary phone charges. Please do not return the product without calling Drake Service and
following the steps above rst; it is preferred to help troubleshoot the problem over the phone (or by Email) rst, saving you both time
and money.
11
Limited Warranty
Seller will at its sole option, either repair or replace (with a new or factory reconditioned product, as Seller may determine) any product manufactured or sold (or in the case of software,
licensed) by Seller which is defective in materials or workmanship or fails to meet the applicable specifications that are in effect on the date of shipment or such other specifications as may
have been expressly agreed upon in writing: (i) for a period of three (3) years from the date of original purchase for all stock hardware products (other than those specifically referenced herein
below having a shorter warranty period); (ii) for a period of one (1) year from the date of original purchase, with respect to all MegaPort™, IPTV products, test equipment and fiber optics
receivers, transmitters, couplers and integrated receiver/distribution amplifiers; (iii) for a period of one (1) year from the date of original purchase (or such shorter period of time as may be set
forth in the license agreement specific to the particular software being licensed from Seller) with respect to all software products licensed from Seller (other than Core Product Software) that
is (a) developed for a specific function or application, (b) complimentary to and does not function without the Core Product Software, and (c) listed with a specific model number and stock
number in Sellers Price List (“Non-Core Software”); (iv) for a period of ninety (90) days from the date of original purchase, with respect to non-serialized products and accessories, such as
parts, sub-assemblies, splitters and all other products sold by Seller (other than Core Product Software and Refurbished/Closeout Products) not otherwise referred to in clauses (i) through (iii)
above. The warranty period for computer programs in machine-readable form included in a hardware product, which are essential for the functionality thereof as specifically stated in the pub-
lished product specifications (“Core Product Software”) will be coincident with the warranty period of the applicable hardware product within which such Core Product Software is installed.
Software patches, bug fixes, updates or workarounds do not extend the original warranty period of any Core Product Software or Non-Core Software.
Notwithstanding anything herein to the contrary,
(i) Sellers sole obligation for software that when properly installed and used does not substantially conform to the published specifications in effect when the software is first shipped by Seller,
is to use commercially reasonable efforts to correct any reproducible material non-conformity (as determined by Seller in its sole discretion) by providing the customer with: (a) telephone or
e-mail access to report non-conformance so that Seller can verify reproducibility, (b) a software patch or bug fix, if available or a workaround to bypass the issue if available, and (c) where
applicable, replacement or damaged or defective external media, such as CD-ROM disk, on which the software was originally delivered;
(ii) Seller does not warrant that the use of any software will be uninterrupted, error-free, free of security vulnerabilities or that the software will meet the customer’s particular requirements; and
the customers sole and exclusive remedy for breach of this warranty is, at Sellers option, to receive (a) suitably modified software, or part thereof, or (b) comparable replacement software
or part thereof;
(iii) Seller retains all right, title and interest in and to and ownership of all software (including all Core Product Software and Non-Core Software) including any and all enhancements, modi-
fications and updates to the same; and
(iv) in some cases, the warranty on certain proprietary sub-assembly modules manufactured by third-party vendors and contained in Sellers products, third party software installed in certain of
Sellers products, and on certain private-label products manufactured by third-parties for resale by Seller, will be of shorter duration or otherwise more limited than the standard Seller limited
warranty. In such cases, Sellers warranty with respect to such third-party proprietary sub-assembly modules, third-party software and private-label products will be limited to the duration and
other terms of such third-party vendors warranty, if any. The limited warranty set forth above does not apply to any product sold by Seller, which at the time of sale constituted a Refurbished/
Closeout Product, the limited warranty for which is provided in the following paragraph.
Seller will at its sole option, either repair or replace (with a new or factory-reconditioned product, as Seller may determine) any product sold by Seller which at the time of sale constituted a
refurbished or closeout item (“Refurbished/Closeout Product”), which is defective in materials or workmanship or fails to meet the applicable specifications that are in effect on the date of
shipment of that product or fails to meet such other specifications as may have been expressly agreed upon in writing between the parties, for a period of ninety (90) days from the date of original
purchase. Notwithstanding the foregoing, in some cases the warranty on certain proprietary sub-assembly modules manufactured by third-party vendors and contained in Seller products, third
party software installed in certain of Sellers products, and on certain private-label products manufactured by third-parties for resale by Seller will be of shorter duration or otherwise more lim-
ited than Seller limited warranty for Refurbished/Closeout Products. In such cases, Sellers warranty for Refurbished/Closeout Products constituting such third party proprietary sub-assembly
modules, third party software, and private-label products will be limited to the duration and other terms of such third-party vendor’s warranty, if any. In addition, notwithstanding the foregoing,
(i) certain Refurbished/Closeout Products that are not manufactured (but are resold) by Seller, may carry the original OEM warranty for such products, if any, which may be longer or shorter
than Sellers limited warranty for Refurbished/Closeout Products. All sales of Refurbished/Closeout Products are final.
To obtain service under this warranty, the defective product, together with a copy of the sales receipt, serial number if applicable, or any other satisfactory proof of purchase and a brief descrip-
tion of the defect, must be shipped freight prepaid to Seller at the following address: One Jake Brown Road, Old Bridge, New Jersey 08857.
This warranty does not cover failure of performance or damage resulting from (i) use or installation other than in strict accordance with manufacturers written instructions, (ii) disassembly
or repair by someone other than the manufacturer or a manufacturer-authorized repair center, (iii) misuse, misapplication or abuse, (iv) alteration, (v) exposure to unusual physical or electrical
stress, abuse or accident or forces or exposure beyond normal use within specified operational or environmental parameters set forth in applicable product specifications, (vi) lack of reasonable
care or (vii) wind, ice, snow, rain, lightning, or any other weather conditions or acts of God.
OTHER THAN THE WARRANTIES SET FORTH ABOVE, SELLER MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND, EXPRESS OR
IMPLIED, AS TO THE CONDITION, DESCRIPTION, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR AS TO ANY OTHER MATTER, AND SUCH
WARRANTIES SET FORTH ABOVE SUPERSEDE ANY ORAL OR WRITTEN WARRANTIES OR REPRESENTATIONS MADE OR IMPLIED BY SELLER OR BY ANY
OF SELLER’S EMPLOYEES OR REPRESENTATIVES, OR IN ANY OF SELLER’S BROCHURES MANUALS, CATALOGS, LITERATURE OR OTHER MATERIALS. IN
ALL CASES, BUYER’S SOLE AND EXCLUSIVE REMEDY AND SELLER’S SOLE OBLIGATION FOR ANY BREACH OF THE WARRANTIES CONTAINED HEREIN
SHALL BE LIMITED TO THE REPAIR OR REPLACEMENT OF THE DEFECTIVE PRODUCT F.O.B SHIPPING POINT, AS SELLER IN ITS SOLE DISCRETION
SHALL DETERMINE. SELLER SHALL IN NO EVENT AND UNDER NO CIRCUMSTANCES BE LIABLE OR RESPONSIBLE FOR ANY CONSEQUENTIAL, INDIRECT,
INCIDENTAL PUNITIVE, DIRECT OR SPECIAL DAMAGES BASED UPON BREACH OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE, STRICT TORT
LIABILITY OR OTHERWISE OR ANY OTHER LEGAL THEORY, ARISING DIRECTLY OR INDIRECTLY FROM THE SALE, USE, INSTALLATION OR FAILURE OF
ANY PRODUCT ACQUIRED BY BUYER FROM SELLER.
All claims for shortages, defects, and non-conforming goods must be made by the customer in writing within five (5) days of receipt of merchandise, which writing shall state with particularity
all material facts concerning the claim then known to the customer. Upon any such claim, the customer shall hold the goods complained of intact and duly protected, for a period of up to sixty
(60) days. Upon the request of Seller, the customer shall ship such allegedly non-conforming or defective goods, freight prepaid to Seller for examination by Sellers inspection department
and verification of the defect. Seller, at its option, will either repair, replace or issue a credit for products determined to be defective. Sellers liability and responsibility for defective products is
specifically limited to the defective item or to credit towards the original billing. All such replacements by Seller shall be made free of charge f.o.b. the delivery point called for in the original
order. Products for which replacement has been made under the provisions of this clause shall become the property of Seller. Under no circumstances are products to be returned to Seller without
Sellers prior written authorization. Seller reserves the right to scrap any unauthorized returns on a no-credit basis. Any actions for breach of a contract of sale between Seller and a customer
must be commenced by the customer within thirteen (13) months after the cause of action as accrued. A copy of Sellers standard terms and conditions of sale, including the limited warranty,
is available from Seller upon request. Copies of the limited warranties covering third-party proprietary sub-assembly modules and private-label products manufactured by third-parties may
also be available from Seller on request. (Rev 0713)
R.L. DRAKE HOLDINGS
Sales: 937-746-4556 • Support: 937-746-6990 • Fax: 937-806-1510
www.rldrake.com
R.L. Drake Holdings LLC
710 Pleasant Valley Drive
Springboro, Ohio 45
066
Customer Service and Parts Telephone: +1 (937) 746-6990
Telefax: +1 (937) 806-1510
World Wide Web Site: http://www.rldrake.com
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DRAKE VM2050 Manuel utilisateur

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