with care. Quick stops, excessive force and uneven
surfaces may cause the product and cart combination
to overturn.
The lightning flash 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 sufficient
magnitude to constitute a risk of electric shock to
persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the product.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS PRODUCT TO
RAIN OR MOISTURE.
A product and cart combination should be moved
DO NOT OPEN THE CABINET, REF
ER 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.
ATTENTION: 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.
Important Safety Instructions:
1.Read Instructions: All the safety and operating instructions should be read before the product is operated.
2. Retain Instructions: The safety and operating instructions should be retained for future reference.
3. Heed Warnings: All warnings on the product and in the operating instructions should be adhered to.
4. Follow Instructions: All operating and use instructions should be followed.
5. Cleaning: Unplug this product from the wall outlet before cleaning. Do not use liquid cleaner
6. Attachments: Do not use attachments 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 swimming 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 recommended by the manufact
the product. Any mountin
manufacturer.
9. A product and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the product and cart
combination to overturn.
10. Ventilation: Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from
overheating, and these openings must not be blocked or covered. The openings should never be blocked by placing the product on a be
or similar surface. This product should not be placed in a built-in installation such as bookcase or rack unless proper ventilation is provided or the
manufacturer's instructions 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 supplied to your home, consult your product dealer or local power company. For products intended to operate from battery power, or other
sources, refer to the operatin
12. Grounding or Polarization: This product may be equipped with a polarized alternating-current line plug (a plug having one blade wider than the
other). This plug will fit 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 still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the saf
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 fit
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.
g of the product should follow the manufacturer's instructions, and should use a mounting accessory recommended by the
g instructions.
s or aerosol cleansers. Use a damp cloth for cleaning.
d, sofa, rug,
ety purpose of the polarized
Page 3
Cautions Statements continued
13.
Outdoor Antenna Grounding: If an outside antenna or cable system is connected to the product, be sure the antenna or cable system is
grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code,
ANSI/NFPA 70, provides information with regard to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an
antenna discharge unit, size of grounding conductors, location of antenna-discharge unit, connection to grounding electrodes, and requirements for
the grounding electrode.
14. Power-Cord Protection: 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 particular attention to cords at plugs, convenience receptacles, and the point where they exit from the product.
15. Lightning: For added protection for this product during a lightning storm, or when it is left unattended and unused for long periods of time, 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. When installing an outside antenna system, extreme care should be taken to keep from touching such power
lines or circuits as contact with them may be fatal.
17. Overloading: Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of fire 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 fire or electric shock. Never spill liquid of any kind on the product.
19. Servicing: Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or other hazards.
Refer all servicing to qualified service personne
20. Damage Requiring Service: Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions:
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 operating instructions.
Adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in damage and will
often require extensive work by a qualified technician to restore the product to its normal operation, e. If the product has been dropped or damaged
in any way, and f. When the product exhibits a distinct 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 specified by the manufacturer
or have the same characteristics as the original part. Unauthorized substitutes may result in fire, electric shock or other hazards.
22. 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.
23. Wall or Ceiling Mounting: 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 amplifiers) that
produce heat.
l.
3
Page 4
4 T
able of Contents / Description / Specifications
TABLE OF CONTENTS
2Caution Statements
2Important Safety Instructions
4Table of Contents / Description / Specifications
5Front/Rear Panel Controls and Indicators
6Operation
7Adjustments
8
Channel Assignments
10
Service / If You Need To Call For Help
11
Warranty
VM SERIES VIDEO MODULATOR
DESCRIPTION
The R.L Drake VM2860 and VM2862 Video Modulators are high
quality, vestigial 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
modulation indicators permit easy setup of the proper modulation
levels. The A/V ratio and RF output level controls are also provided
on the front panel. A rear panel EAS alternate IF input is also
provided. The VM2860 model is for applications with mono audio
and the VM2862 model provides BTSC stereo encoded audio.
Synthesized operation provides complete frequency agility, allowing
front panel selection of any standard CATV channel from 2 to 135
(54 to 862 MHz band). FCC required offsets for aeronautical
channels are automatically provided for each channel that requires
an offset. For special applications, IRC or HRC CATV frequencies
or off-air broadcast frequencies can be selected from the front panel.
A high quality IF SAW filter with FCC predistortion eliminates
adjacent channel interference and provides optimum delay
characteristics.
SPECIFICATIONS - VM2860 / VM2862
VIDEO INPUT
Connector: “F” Female
Impedance: 75 ohms
Video Input Level: 0.7 volt Peak-to-Peak
Signal-to-Noise Ratio: 58 dB
Differential Gain: 2.0%
Differental Phase: 1.0 degree
Over-modulation Indicator: 87 to 92%
Channel Modes: CATV (STD,IRC,HRC) UHF, VHF
Power Level Range: +50 to +60 dBmV
Video Flatness: fv-0.5 to fv+4.2 MHz : 1.5 dB p/v
Carrier-to-Noise: -63 dB
Broadband Noise: -77 dBc
Spurious Outputs: -63 dBc
Aural/Visual Carrier Ratio: -15 ± 5 dB
Return Loss: 18 dB
L/C Delay: Per FCC Requirements
RF OUTPUT
Connector: “F” Female
Impedance: 75 ohms
Return Loss: 12 dB
GENERAL
AC Power:
Temperature Range:
Fuse: Fuse: 0.4A Type T 250 V
Size: 19.0 x 14.25 x 1.75 in
Weight:
117 VAC ± 10%, 60 Hz,
29 Watts max
32° to 122° F
7 lbs.
A manual or auto-switching alternate IF input, labeled EAS input,
is provided for connection 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 automatic selection of the EAS/ALT IF input signal. This
is done through a 3 position terminal strip on the rear of the unit.
In the manual mode the EAS/ALT IF feature is activated by a contact
closure switch, which completes a ground connection. In the
automatic mode, two positions on the terminal strip are jumpered
together enabling an automatic detection circuit in the unit. When an
EAS/ALT IF signal is routed to the EAS/ALT port the unit automatically
switches to that alternate signal.
MONO AUDIO (VM2860)
Input Impedance: Greater than 10k ohms, unbalanced.
Frequency Range: 50 Hz to 15 kHz
Frequency Response: ± 0.5 dB
controls and indicators for the modulator are located on, or are accessible from the front panel.
[11]
[1]
[6] [5] [4] [3] [2]
[7][8]
[1] EAS/ALT INDICATOR: Lights Red when EAS/ALT is ac ve.
[2] VIDEO OVERMODULATION LED: Lights when modula
[3] VIDEO MODULATION LEVEL: Adjusts percentage of modula
is above 87.5%.
.
[4] AURAL-TO-VISUAL CARRIER RATIO: Controls amplitude of aural RF carrier rela
[5] AUDIO MODULATION LEVEL: Adjusts aural carrier modula
[6] AUDIO OVERMODULATION LED: Lights when peak devia
[7] DISPLAY MODE BUTTON: Used to scroll through channel configura
Used to scroll through the channel, channel configuration and output level modes.
[10] ENTER BUTTON:
[11] STEREO INDICATOR:
Green LED lights when equipped with stereo (VM2862).
[10]
VM SERIES VIDEO MODULATOR
[9]
Figure 1 - Front Panel
ve to visual RF carrier.
5 Front and Rear Panel Controls and Indicators
Note: All c to the unit are made at the rear panel.
[5]
[3]
[4]
[8]
[1]
[2]
[1] RF OUTPUT: + 60 dBmV
[2] IF INPUT: +35 dBmV IF Input
[3] EAS/ALT IF INPUT: Emergency Alert or Alternate IF Input
[4] IF OUT: +35 dBmV IF Output (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 con
not have an RF output without the IF loop installed.
[6]
Figure 2 - Rear Panel (VM2860 Shown)
ty. The modulator will
[7]
Page 6
Operation6
Operan
Display Mode
This bu
The res
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
The actual channel is not changed un
If the ENTER bu
Pressing and holding the UP or DN bu
All internal a
on scrolls through the selec of Channel, Channel Configura Output Level mode in this order.
g state (default) of the modulator’s display mode is the channel number.
g a transi state.
the ENTER bu on is pressed.
on is not pressed, the display will return to resg state a er 30 seconds.
on will allow for faster scrolling of channel.
enuators are temporarily set for maximum a enua during channel change (output is muted).
Channel Configura
The Channel Configura is changed by pressing the UP or DN bu on when in the Channel Configura display mode.
The LED display will blink indica
The channel configura
If the ENTER bu
If the mode is to be changed and it is not a valid mode for the exis
mode will be selected, and the channel will default to channel-2.
The available Channel Configura
C = Standard (default from factory)
I = IRC
H = HRC
U = Broadcast VHF/UHF
Error
The Display will show a flashing "EE1" if the PLL1 is not locked.
The Display will show a flashing "EE2" if the PLL2 is not locked.
The Display will show a flashing "EE3" if both PLL1 and PLL2 are not locked.
All internal a
Please contact our Service Department should any of these errors condi
on is not pressed, the display will return to resg state a er 30 seconds.
enuators are automa cally set for maximum a enua in any of the above condi (output is muted).
is not changed un the ENTER bu on is pressed.
g a transi state.
g channel, when the ENTER bu on is pressed, the new
are as follows:
occur.
Page 7
Adjustments
7
Adjustments
VIDEO LEVEL: With the intended signal source connected and a representa ve video program present turn the Video
Level Adjust control clockwise un
Alterna
level that does NOT cause the highlights (white por
vely, while watching the picture on a good TV monitor, adjust the control to the highest (clockwise)
the Video Overmodula light just flashes, then back off slightly.
of the picture) to become “washed out”.
AUDIO LEVEL: Turn the Audio Level Adjust control clockwise un
the loudest peaks of the audio program material.
OUTPUT LEVEL: The Output Level is adjusted by pressing the UP or DN bu
The LED display will blink indica
bu
on is pressed. If the ENTER bu on is not pressed, the display will return to its resg state a er 30
seconds. Pressing and holding the UP or DN bu
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
and adjust the Aural Carrier control to obtain the desired aural carrier level. Recommended ra
-15 dB.
EAS/ALT IF:
AUTOMATIC: Connect a jumper to the terminal strip auto posi
a +38 dBmV EAS IF signal is detected.
MANUAL: EAS is ac
ve with a ground connec on the manual posi of the terminal strip.
g a transi on state. The output level is not changed un the ENTER
the Audio Overmodula light just flashes slightly on
on will allow for faster scrolling. The Level increments in
o, tune the RF indicator device to the aural carrier frequency
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. and 4:00 P.M. Eastern Time, except on holidays.
You may also contact the R.L. DRAKE Service Department by E-mail at the following address: TechSupport@
rldrake.com or by Telefax: +1 (937) 806-1510.
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.
The unit will be serviced under the terms of the R.L. DRAKE HOLDINGS LLC Limited Warranty and returned to
you.
IF YOU NEED TO CALL FOR HELP
Call our Customer Service/Technical Support line at +1 (937) 746-6990 between 8:00 A.M. and 4:00 P.M. Eastern
Time, weekdays. Please have the unit’s serial number available. We will also need to know the specifics 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 possible. R.L. DRAKE also provides technical assistance by e-mail: TechSupport@rldrake.com or by Telefax: +1
(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 you will be charged. Please perform whatever steps are applicable
from the installation sections of the Owner's Manual before calling or writing—this could save unnecessary phone
charges. Please do not return the unit without contacting R.L. DRAKE first: it is preferred to help troubleshoot the
problem over the phone (or by mail) first, saving you both time and money.
Inside the carton, enclose a note with your name, address, daytime phone number, and a description of the unit’s
problem.
The unit must be sent to the following address:
Service Department
R.L. DRAKE
710 Pleasant Valley Drive
Springboro, Ohio 45066. USA
Be sure to include your street address which will be needed for UPS return. UPS Surface (Brown Label) takes
7-10 days to reach us depending on your location, Blue takes 2-3 days.
Red is an overnight service. Send the unit in a way that it can be traced if we can’t verify receipt of shipment. We
suggest UPS or insured postal shipment.
If the unit is still under the original owner’s warranty, R.L. DRAKE will pay the cost of the return shipment to you.
Our return shipping policy is that we will return it UPS Brown if received Brown or by US Mail, it will be returned
Blue if received Blue or Red—or it will be returned however you prefer if you furnish the return cost for the
method you select.
If the unit is out of warranty, use one of the following methods for return shipment:
1) You designate billing to American Express, VISA, MasterCard or Discover card;
2) You prepay the service charges with a personal check, or
3) You specify some other method of return and payment.
When calling, the technician can estimate the repair charges for you over the phone. This is another good reason
to call before sending a unit in for repair.
Typically, equipment is repaired in five to ten working days after it arrives at R.L. DRAKE if we have all the
facts. If we must call you, it may take longer. R.L. DRAKE is not responsible for damage caused by lightning,
nonpro
fessional alterations, “acts of God”, shipping damage, poor storage/handling, etc. R.L. DRAKE will make
note of any shipping damage upon receipt.
You will need to send proof of purchase to receive warranty service. Typically, a copy of the invoice from an R.L.
DRAKE dealer will suffice. The warranty is for the original owner only and is not transferable.
Page 11
Warranty
Warranty
11
Three Year Limited Warranty
R.L. DRAKE HOLDINGS LLC 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.
During the warranty period R.L. DRAKE HOLDINGS LLC or an authorized Drake service facility will provide,
free of charge, both parts and labor necessary to correct defects in material and workmanship. At its option, R.L.
DRAKE HOLDINGS LLC may replace a defective unit.
To obtain such a warranty service, the original purchaser must:
1. Retain invoice or original proof of purchase to establish the start of the warranty period.
Notify R.L. DRAKE HOLDINGS LLC or the nearest authorized service facility, as soon as possible after
2.
discovery of a possible defect, of:
a) the model and serial number,
b) the identity of the seller and the approximate date of purchase; and
A detailed description of the problem, including details on the electrical connection to associated
c)
equipment and the list of such equipment.
Deliver the product to R.L. DRAKE HOLDINGS LLC or the nearest authorized service facility, or ship
3.
the same in its original container or equivalent, fully insured and shipping charges prepaid.
Correct maintenance, repair, and use are important to obtain proper performance from this product. Therefore
carefully read the Instruction Manual. This warranty does not apply to any defect that R.L. DRAKE HOLDINGS
LLC determines is due to:
Improper maintenance or repair, including the installation of parts or accessories that do not conform
1.
to the quality and specifications of the original parts.
2. Misuse, abuse, neglect or improper installation.
3. Accidental or intentional damage.
All implied warranties, if any, including warranties of merchantability and fitness for a particular purpose, terminate
three (3) years from the date of the original purchase.
The foregoing constitutes R.L. DRAKE HOLDINGS LLC'S entire obligation with respect to this product, and the
original purchaser shall have no other remedy and no claim for incidental or consequential damages, losses or
expenses. 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.
This warranty shall be construed under the laws of Ohio.
For Service, contact:
R.L. DRAKE HOLDINGS LLC
710Pleasant Valley Drive
Springboro, Ohio 45066. USA.
Customer Service and Parts Telephone: +1 (937) 746-6990
Telefax: +1 (937) 806-1510
Web Site: http://www.rldrake.com
Page 12
R.L. Drake Holdings LLC
710 Pleasant Valley Drive
Springboro, Ohio 45066
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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