The lightning flash with arrowhead symbol within an equilateral
triangle is intended to alert you
to the presence of uninsulated
“dangerous voltage” within the
product’s enclosure that may be
of sufficient magnitude to consti
tute a risk of electrical shock to
persons.
-
The exclamation point within an
equilateral triangle is intended
to alert you to the presence of
important operating and main
tenance (servicing) instructions
in the literature accompanying
the product.
TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER FROM THIS UNIT.
NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE
NOTE TO CATV SYSTEM INSTALLER
This reminder is provided to call the CATV System Installer’s attention that the cable distribution
system should be grounded (earthed) in accordance with ANSI/NFPA 70, the National Electrical Code
(NEC), in particular Section 820.93, Grounding of Outer Conductive Shield of a Coaxial Cable
Unpacking and Handling
Each unit is shipped with all equipment assembled, wired, factory tested, and then packaged in an appropriate
shipping container.
Ensure that all accessories are removed from the container and packing material before they are discarded.
Mechanical Inspection
Inspect the front and rear of the equipment for shipping damage. Make sure the equipment is clean, and no wires,
cables, or connectors are broken, damaged or loose.
Precautions
Adherence to the initial installation precautions outlined in the Table below will help prevent problems arising
during the installation and future maintenance of the unit.
Damage in Shipment
Should any damage be discovered after unpacking the unit, immediately file a claim with the carrier. A full report
of the damage shall be made and a copy forwarded to Blonder Tongue Laboratories Inc. The company will then
advise what disposition is to be made of the equipment.
.
-
Returning Product for Repair or Credit
A Return Material Authorization (RMA) Number is required on all products returned to
Blonder Tongue, regardless if the product is being returned for repair or credit. Before
returning product, please contact the Blonder Tongue Service Department at 1-800-523-6049, Ext. 4256
or visit our website: www.blondertongue.com for further information.
PRECAUTIONS REQUIREMENTS
Avoid Heat Buildup Allow (1) EIA rack space (1
Ensure easy access to rack wiring. Allow a minimum of 18 inches behind the equipment rack(s)
Facilitate servicing and maintenance. Allow a minimum of 36” of clearance in front of the equipment rack(s).
Avoid direct heating or air conditioning. If unavoidable, use deflector plates.
AC power source outlets. Locate equipment near sufficient outlets to provide power for test equipment and power
Rack Support. Make certain rack supports are sufficiently rigid to support racks.
Building leakage. Beware of dripping water onto equipment from leaky roofs, waveguide roof entries, and
Table 1 - Installation Precautions Table
3/4
") between powered headend products in the equipment
racks.
tools.
cold water pipe condensations.
Page 3
Instruction Manual
3FAxM Series
Safety Instructions
You should always follow these instructions to help ensure against injury to
yourself and damage to your equipment.
➧ Read all safety and operating instructions before you operate the unit.
➧ Retain all safety and operating instructions for future reference.
➧ Heed all warnings on the unit and in the safety and operating instructions.
➧ Follow all installation, operating, and use instructions.
➧ Unplug the unit from the AC power outlet before cleaning. Use only a damp cloth for cleaning the exterior of
the unit.
➧ Do not use accessories or attachments not recommended by Blonder Tongue, as they may cause hazards, and
will void the warranty.
➧ Do not operate the unit in high-humidity areas, or expose it to water or moisture.
➧ Do not place the unit on an unstable cart, stand, tripod, bracket, or table. The unit may fall, causing serious
personal injury and damage to the unit. Install the unit only in a mounting rack designed for 19” rack-mount
ed equipment.
➧ Do not block or cover slots and openings in the unit. These are provided for ventilation and protection from
overheating. Never place the unit near or over a radiator or heat register. Do not place the unit in an enclo
sure such as a cabinet without proper ventilation. Do not mount equipment in the rack space directly above
or below the unit.
➧ Operate the unit using only the type of power source indicated on the marking label. Unplug the unit
power cord by gripping the plug, not the cord.
➧ The unit is equipped with a three-wire ground-type plug. This plug will fit only into a ground-type
power outlet. If you are unable to insert the plug into the outlet, contact an electrician to replace the
outlet. Do not defeat the safety purpose of the ground-type plug.
-
-
➧ Route power supply cords so that they are not likely to be walked on or pinched by items placed upon
or against them. Pay particular attention to cords at plugs, convenience receptacles, and the point
where they exit from the unit.
➧ Be sure that the outdoor components of the antenna system are grounded in accordance with local, federal, and
National Electrical Code (NEC) requirements. Pay special attention to NEC Sections 810 and 820.
See the example shown in the following diagram:
Page 4
4FAxM Series
Instruction Manual
➧ We strongly recommend using an outlet that contains surge suppression or ground fault protection.
For added protection during a lightning storm, or when the unit is left unattended and unused for long
periods of time, unplug it from the wall outlet and disconnect the lines between the unit and other
equipment. This will prevent damage caused by lightning or power line surges.
➧ Do not locate the antenna near overhead power lines or other electric light or power circuits, or where
it can fall into such power lines or circuits. When installing an antenna, take extreme care to avoid
touching such power lines or circuits, as contact with them can be fatal.
➧ Do not overload wall outlets or extension cords, as this can result in a risk of fire or electrical shock.
➧ Never insert objects of any kind into the unit through openings, as the objects may touch dangerous
voltage points or short out parts. This could cause fire or electrical shock.
➧ Do not attempt to service the unit yourself, as opening or removing covers may expose you to
dangerous voltage and will void the warranty. Refer all servicing to authorized service personnel.
➧ Unplug the unit from the wall outlet and refer servicing to authorized service personnel whenever the
following occurs:
❐ The power supply cord or plug is damaged;
❐ Liquid has been spilled, or objects have fallen into the unit;
❐ The unit has been exposed to rain or water;
❐ The unit has been dropped or the chassis has been damaged;
❐ The unit exhibits a distinct change in performance.
➧ When replacement parts are required, ensure that the service technician uses replacement parts
specified by Blonder Tongue. Unauthorized substitutions may damage the unit or cause electrical
shock or fire, and will void the warranty.
➧ Upon completion of any service or repair to the unit, ask the service technician to perform safety
checks to ensure that the unit is in proper operating condition.
Page 5
Instruction Manual
Description
The FAxM Series are professional quality multi-channel agile audio/video modulators with an output frequency
range of 54-860 MHz.
The units provide a modulated aural & visual carrier on any channel in the 54 to 860 MHz range. Frequency
plans including Standard CATV, IRC, HRC and Broadcast are accommodated via front panel selection. Channel
tuning is easily accomplished with the use of front panel buttons following the entry instructions. All channels with
appropriate FCC offsets are pre-programmed and tuned electronically via microprocessor.
The units accept any standard audio/video source such as satellite receivers, television camera, video tape recorders
or demodulators. The advanced design ensures front panel access with LED indicators for all level and overmodulation controls.
Features
• One, Two or Three Combined Channels: 54 - 860 MHz, One +50 dBmV Combined Output
• Supports All Broadcast and CATV Channels, Including All HRC and IRC Assignments
• Custom SAW Filter Providing True VSB Response with Built-In FCC CATV Group Delay Pre-Distortion
Adjacent Aural and Below: -40 dB
Adjacent Picture and Above: -50 dB
Spurious Outputs: -60 dBc
C/N Ratio In Channel: 63 dB (b)
Broadband Noise: -70 dBc (b)
Output Impedance: 75 ohms
Output Return Loss: 12 dB
Video
Input Level: 1.0 V p-p (d)
Frequency Response fv-0.5 MHz to fv+4.2 MHz:
±1.0 dB
P-P Video to RMS Hum Ratio: 65 dB
Video Signal-to-Noise Ratio, NTC-7 Weighted:
62 dB
Differential Gain: 2.0 % (d)
Differential Phase: 1.0 ° (d)
C/L Delay Inequality: see note(c)
Over Modulation Indicator: 87.5, ±2.5 %
Input Impedance: 75 ohm
Input Return Loss: 24 dB, min
Audio
Input Level: 140 mV RMS (e)
Frequency Range: 20 Hz to 20 kHz
Pre-Emphasis-Mono: 75 µs
Frequency Response: ±1.0 dB (g)
If Pre-Emphasis Defeated: +0.5 dB
Audio Signal-to-Noise: 58 dB (e)
Total Harmonic Distortion: 0.6% (h)
Over Modulation Indicator : 25, ±2 kHz
Input Impedance: Greater than 10 K ohm,
unbalanced
General
Power Requirements: 110 VAC to 260 VAC
Frequency: 47 to 63 Hz
Temperature Range: 0° to +50° C
AC Current (l): 0.32 Amp for 115 VAC
Output Voltage: +12 Vdc, + 5 Vdc
Max Current Output / Voltage: 0.7 Amp
Mechanical
Dimensions (WxHxD): 19 x 1.75 x 14.25 in
Weight: 7 lbs (approx)
Channel Selection: Up/Down Push-Buttons
Video Level: Control
A/V Ratio: Control
Audio Level: Control
RF Output Level: Control
Channel Enter: Push-Button
Indicators (Front Panel)
2 Digital LED Channel Display
+100 Indicator: LED, RED
Video Over Modulation: LED, RED
Audio Over Modulation: LED, RED
Stereo Indicator: LED, GREEN - Not Used
color transmission
(d) 87.5% depth of modulation
(e) for 25 kHz peak deviation
(f) available via internal jumper setting
(g) referenced to standard 75 µs pre-emphasis
(h) 30 Hz to 15 kHz, 25 kHz deviation
(i) 0 °C to +50 °C
(k) continuously adjustable, optimum performance at
+40 to +50 dBmV
(l) AC current with 3 modules installed
Page 7
7FAxM Series
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+100
ENT
RF
LEVEL
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1
2
3
4
5
6
7
8
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AMCM
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STEREO
CAUT ION
FOR CONT INUED
PROTEC TION AGAINST
FIRE HAZ ARD REPLACE
WITH SAM E TYPE FUSE
117V, 0.4A , 60 Hz
1A, 250 V, TYPE T
MADE IN USA
AUDIO
ININ
VIDEO
FA3M-50- 860, STOCK NO. 59713B
MOD
NO.3
AUDIO
ININ
VIDEO
MOD
NO.2
AUDIO
IN
IN
RF OUT
VIDEO
MOD
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COMBIN ED
BLONDE R TONGUE
LABORA TORIES, INC .
FREQUE NCY AGILE
MODULA TORS
13
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LISTED
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FA2M-50- 860, STOCK NO. 59712B
FA1M-50- 860, STOCK NO. 59711B
Instruction Manual
Operating Controls
All operating controls and indicators for the modulators are located on, or are accessible from the front
panel.
1. Stereo Indicator - Lit when video and stereo audio are present.
2. Audio/Video Ratio Adjustment - Adjustment of the A/V Ratio is permitted from approximately -19
dB (full clockwise position) to approximately -10 dB
(full counterclockwise position) by rotating the potentiometer.
3. Video Adjustment - Adjustment of the Video Modulation Level is permitted
by rotating the potentiometer.
4. Video Over Modulation LED Indicator
5. Audio Adjustment - Adjustment of the Audio Modulation Level is permitted by
rotating the potentiometer.
6. Audio Over Modulation LED Indicator
7. Up/Down Buttons - Used to set the desired channel or mode.
8. +100 Indicator - Lights when channel settings are 100 -135.
9. Channel ENT Button - Enter button used to enter a desired channel or mode.
10. RF Level Adjustment - Potentiometer adjustment used to set the output
level. Has a range of 15 dB, optimum performance with a 10 dB adjustment.
Front Panel View
Connections
All connections to the units are made at the rear panel.
12. Video Input - “F” Connector
13. Audio Input - RCA Connector
14. RF Output - “F” Connector
Rear Panel View
Page 8
Instruction Manual
ATTENTIO N!
Unit Mounting
Mount the unit in a standard 19” EIA rack, ensuring access to rear connections and front controls. Make sure adequate ventilation
exists in the vicinity of the unit.
Preparation for Use
Plug in the 3-prong connector of the AC power cord into a suitable 117 Volt, 60 Hz AC outlet of adequate current carrying capacity.
Use appropriate cables (75 Ohm coaxial) to connect the program source to the video and audio input connectors and the RF output
of the unit to the system input.
Programming Each Agile Modulator
Each unit comes factory set to operate in the Standard CATV Mode. Each unit has 4 valid operating modes, STD CATV, IRC, HRC &
Broadcast UHF/VHF. If you wish to change the operating mode skip to the next section.
Programming the Unit
The AMCM unit comes factory set to operate in the Standard CATV mode.
The unit has 4 valid operating modes: STD CATV, IRC, HRC & Broadcast UHF/VHF. (Skip to the next section for
programming the operating mode)
Programming a Channel
1. Navigate to the desired channel number by depressing the CH p UP and q DN buttons.
a. Continuous past 99 for channels 100-135, the +100 red LED will illuminate.
2. Press the ENT button when you reach the desired channel setting. This will tune the modulator output to the
corresponding channel frequency for this entry.
a. The LED display will blink continuously during the channel programming process and will not change the
output frequency the unit is programmed until the ENT button is depressed.
b. The unit has a special feature that alerts an operator of an inadvertent or desired change to the channel
display by flashing the LED readout. The LED display will continue to flash for 30 seconds if the ENT button is
not depressed and then will return to the display of the previously programming channel entry setting.
8FAxM Series
See Appendix A For a complete list of available channels CATV STD; IRC & HRC 1-135 and Broadcast 2-69
Operating Mode Selection
The unit has 4 valid operating modes: STD CATV, IRC, HRC & Broadcast UHF/VHF.
The AMCM unit comes factory set to operate in the Standard CATV mode.
To change the operating mode:
1. Simultaneously depress the CH p UP and q DN buttons for approximately
5 seconds.
2. The Channel LED display will switch to the operating mode selection.
3. Use the CH
a. C = STD CATV
b. H = HRC
c. I = IRC
d. U = Broadcast (VHF/UHF)
4. After selecting the desired mode depress the ENT button to set the mode.
5. The unit will return to the channel display mode.
a. Programming will reflect the mode chosen – See Appendix A for a detailed frequency plan.
b. The programming mode will also flash continuously during the programming process. The LED display will continue to
p UP and q DN buttons to select the desired mode:
flash for 30 seconds if the ENT button is not depressed and then will return to the display of the previously programming
channel & mode entry setting.
Page 9
9FAxM Series
Instruction Manual
Troubleshooting
A continuous flashing Channel Display indicates a Error Condition detected by the unit
microcontroller. Sample conditions include:
• Channel Selector Entry does not match the channel number on which the modulator is
operating, the display will flash for 30 seconds and then revert back to the previous CH entry
• Mode Selector Entry does not match the mode on which the modulator is
operating, the display will flash for 30 seconds and then revert back to the previous mode entry
• E1 is displayed if the Input & VCO is Not Locked
• E2 is displayed if the Output VCO is Not Locked
Correction Suggestions
The User should perform the following steps to correct an Error Condition:
1. Check that the Channel Display is set to the desired channel & reset as appropriate
2. Check that the unit is set to the appropriate desired operating mode
3. Verify the unit output on a spectrum analyzer
4. Disconnect & reconnect power to the unit
If an error condition continues to be displayed, unit should be replaced and serviced
Page 10
Appendix A
Instruction Manual
10FAxM Series
Frequency Allocation Tables
EIA Standard Incremental Harmonic
Chan. Video Video
NOTE: Refer to unit specifications for their respective operating ranges.
Page 11
Notes
Page 12
Limited Warranty
Blonder Tongue Laboratories, Inc. (BT) will at its sole option, either repair or replace (with a new or factory reconditioned product, as BT may
determine) any product manufactured by BT which proves to be defective in materials or workmanship or fails to meet the specifications which
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 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), with respect to iCentral™ (hardware and software) and all other software products (including embedded software)
licensed from BT, (ii)) for a period of one (1) year from the date of original purchase, with respect to all MegaPort, IPTV products and fiber
optics receivers, transmitters, couplers and integrated receivers/distribution amplifiers (including TRAILBLAZER™, RETRO-LINX™ and TWIN
STAR™ products) as well as for VideoCipher® & DigiCipher® satellite receivers, and (iii) for a period of three (3) years from the date of original
purchase, with respect to all other BT products. Notwithstanding the foregoing, in some cases, the warranty on certain proprietary sub-assembly
modules manufactured by third party vendors and contained in BT products and on certain private-label products manufactured by third parties
for resale by BT are of shorter duration or otherwise more limited than the standard BT limited warranty. In such cases, BT’s warranty with
respect to such third party proprietary sub-assembly modules and private-label products will be limited to the duration and other terms of such
third party vendor’s warranty. In addition, certain products, that are not manufactured but are resold by BT, carry the original OEM warranty for
that product. The limited warranty set forth in this paragraph does not apply to any product sold by BT, which at the time of sale constituted a
Closeout Product.
BT will at its sole option, either repair or replace (with a new or factory reconditioned product, as BT may determine) any product sold by
BT which at the time of sale constituted a refurbished or closeout items (“Refurbished Product” and “Closeout Product”), which proves to be
defective in materials or workmanship or fails to meet the specifications which are in effect on the date of shipment or such other specifications
as may have been expressly agreed upon in writing, for a period of ninety (90) days from the date of original purchase. Notwithstanding the
foregoing, in some cases, the warranty on third party software and on certain proprietary sub-assembly modules manufactured by third party
vendors and contained in BT products and on certain private-label products manufactured by third parties for resale by BT are of shorter
duration or otherwise more limited than the BT limited warranty for Closeout Products. In such cases, BT’s warranty for Closeout Products
constituting such third party software, third party proprietary sub-assembly modules and private-label products will be limited to the duration
and other terms of such third party vendor’s warranty. In addition, notwithstanding the foregoing, (i) certain Closeout Products that are not
manufactured (but are resold) by BT, carry the original OEM warranty for such products, which may be longer or shorter than the BT limited
warranty for Refurbished or Closeout Products. All sales of Refurbished or Closeout Products are final.
To obtain service under this warranty, the defective product, together with a copy of the sales receipt or other satisfactory proof of purchase
and a brief description of the defect, must be shipped freight prepaid to: Blonder Tongue Laboratories, Inc., One Jake Brown Road, Old Bridge,
New Jersey 08857.
This warranty does not cover damage resulting from (i) use or installation other than in strict accordance with manufacturer’s 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) lack of reasonable care or (vi) wind, ice, snow, rain, lightning, or any other weather conditions or acts of God.
OTHER THAN THE WARRANTIES SET FORTH ABOVE, BT MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF
ANY KIND, EXPRESS OR IMPLIED, AS TO THE CONDITION, DESCRIPTION, FITNESS FOR A PARTICULAR PURPOSE, MER
CHANTABILITY OR AS TO ANY OTHER MATTER, AND SUCH WARRANTIES SUPERSEDE ANY ORAL OR WRITTEN WAR
RANTIES OR REPRESENTATIONS MADE OR IMPLIED BY BT OR BY ANY OF BT’S EMPLOYEES OR REPRESENTATIVES, OR
IN ANY OF BT’S BROCHURES, MANUALS, CATALOGS, LITERATURE OR OTHER MATERIALS. IN ALL CASES, BUYER’S SOLE
AND EXCLUSIVE REMEDY AND BT’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 BT IN
ITS SOLE DISCRETION SHALL DETERMINE. BT 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 BT.
All claims for shortages, defects and non-conforming goods must be made by Buyer 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 Buyer. Upon any such complaint, Buyer shall
hold the goods complained of intact and duly protected, for a period of up to sixty (60) days. Upon the request of BT, Buyer shall ship such
allegedly nonconforming or defective goods, freight prepaid to BT for examination by BT’s inspection department and verification of the defect.
BT, at its option, will either repair, replace or issue a credit for products determined to be defective. BT’s liability and responsibility for defective
products is specifically limited to the defective item or to credit towards the original billing. All such replacements by BT 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 BT. Under no circumstances are products to be returned to BT without BT’s prior written authorization. BT
reserves the right to scrap any unauthorized returns on a no-credit basis. Any actions for breach of this contract must be commenced by Buyer
within thirteen (13) months after the cause of action has accrued. A copy of BT’s standard terms and conditions of sale, including the limited
warranty, is available from BT upon request. Copies of the limited warranties covering third party proprietary sub-assembly modules and private
label products manufactured by third parties are also available from BT on request. VideoCipher® & DigiCipher® are registered trademarks of
Motorola Corp.