Page 1
Installation and
Operation Manual
F860
Fixed Modulator
Operation
Manual
Rev. 11/05
Ph: 800-421-6511
www.picomacom.com
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F860
Description
Fixed Modulator
F860
Fixed Modulator
2
Rev. 11/05
Ph: 800-421-6511
www
.picomacom.com
The MACOM F860 is a professional re-broadcast grade microprocessor controlled
phase-locked loop synthesized single channel audio-video modulator available with
an optional BTSC stereo encoder. The
F860 provides 60 dBmV minimum output while
accommodating HRC and IRC of
fset frequencies.
The optional BTSC encoder
enables delivery of high fidelity stereo without the cost of a stand-alone stereo
encoder. This cost-effective modulator was designed for use in heavily loaded systems
requiring high stability and superior picture and stereo sound quality
. Its phase-locked
loop frequency control and superior SAW filtering enhance stability, minimize adjacent
channel interference and assure accurate and spurious free output. Superior out-ofband carrier-to-noise performance is achieved through band-pass filtering at the
output amplifier. The modulator is shipped with all internal adjustments preset. FCC
Docket 21006 offsets are standard. The
MACOM line is backed by an industry lead-
ing 5-year limited warranty
.
Re-broadcast quality performance
Integrated BTSC Stereo (optional)
60 dBmV minimum adjustable output
for optimum carrier-to-noise
performance
Preemphasis defeat switch
provides easy stereo
conversion
Precision SAW filter
for superior adjacent
channel performance enables
drop-in channel expansion
Front panel controls and test point
enable ease setup and monitoring
Digital display provides quick
channels identification and easy
modulation adjustment
Carrier-to-noise ratio >65 dB ensures
superior picture quality
Composite and separate audio and
video IF loops allow compatibility with
encoders, ghost cancellers, and video
override applications
MPX stereo loop provides encoded
stereo input and compatibility with
Emergency Alert equipment
IRC and HRC input and output offset
available for frequency setting in
systems using of
fset channels
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Ph: 800-421-6511
www.picomacom.com
F860
Specifications
Fixed Modulator
Front View
Rear View
RF OUTPUT
Frequency Range: 54-456 MHz
Level: 60 dBmV min
Level Adjustment: 20 dB
Impedance: 75 ohms
Frequency Stability: ±3 kHz
Audio/Video Ratio: -10 to -20 dB
Adjustable
Output Return Loss: -18 dB
In Band Spurious: -62 dB
Out of Band Spurious:
-65 dB
C/N (In-Band): >62 dBc
C/N (Out-of-Band): >65 dBc
IF OUTPUT
V
ideo Level:
38 dBmV
Audio Level: 22 dBmV
Composite Level: 35 dBmV
V
ideo Stability:
±
3 kHz
Audio Stability: ±2 kHz
Impedance: 75 ohms
4.5 MHZ INPUT
Level: 37 dBmV
Impedance: 75 ohms
VIDEO INPUT
Level: 0.7 – 1.0 V p-p
Frequency Response: ±1.0 dB max
Impedance: 75 ohms
Differential Gain: <2% typ
Differential Phase: <1° typ
Chrom / Lumin Delay: ±8 ns
Hum and Noise:
-60 dB
AUDIO INPUT
Level – Mono:
0.5 V p-p – 1 V p-p
Level – Left Audio: 0.5 V p-p – 1 V p-p
Level – Right
Audio: 0.5 V p-p – 1 V p-p
Frequency Response:
±
1.5 dB max
Impedance: 600 ohms
Preemphasis:
75
µ
s switchable
MPX/BTSC STEREO
Level:
2.2 V p-p
Impedance: 500 ohms
Frequency Response: 1 dB, 50 Hz – 14 kHz
Total Harmonic
Distortion:
<0.3%
S/N: 75 dB
Separation:
35 dB, 50 Hz – 12 kHz
GENERAL
Power Input: 90-260 VAC, 28 W
Operating Temperature: -10°C to 50°C
Dimensions: 19˝(L) x 12˝(D) x 1.75˝(H)
Weight: 7.8 lbs.
Connectors: RF & Video “F” type
Audio: 600 ohms terminal strip
RELA
TED PRODUCTS
D860 Agile A/V Stereo Demodulator
EAS-12B Emergency Override System
C860 Bi-Directional Combiner
L860 Bi-Directional Launch
Amplifier
A860 Agile Modulator
DSP806 HDTV Agile Channel Processor
Specifications
Ordering Information
F860-* Fixed Channel Modulator
F860S-* Stereo Fixed Channel Modulator
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F860
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Ph: 800-421-6511
www
.picomacom.com
The lightning flash with arrowhead 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 appliance.
Product Inspection
I
nspect the equipment for shipping damage. Should any damage be discovered, immediately file a claim with the carrier.
Important Safety Instructions
T
o ensure proper installation and operation, take a moment to read this guide before proceeding with the installation. If you have any questions
or comments about the
F860 Fixed Modulator, please contact your dealer or have him contact the PICO MACOM Service Center at the phone
number on the bottom of the page.
1. Read Instructions: All safety and operating instructions should
be read before the appliance is operated.
2. Retain Instructions: The safety and operating instructions
should be retained for future reference.
3. Heed Warnings: All warnings on the appliance should be
adhered to.
4. Follow Instructions: All operating and user instructions should
be followed.
5. Cleaning: Unplug this appliance from wall outlet. Use a damp cloth
for cleaning. Do not use liquid cleaners or aerosol cleansers.
6.
Do Not Use Attachments
not recommended by the manufacturer;
they may cause hazards.
7. Accessories: Do not place this product on an unstable cart,
stand, tripod, bracket, or table.
The product may fall, causing
serious injury to persons and serious damage to the appliance.
8. Damage Requiring Service: Disconnect this product from the
system and refer servicing to qualified service personnel under
the following conditions:
a. If liquid has been spilled, or objects have fallen into the product.
b. If the product has been exposed to rain or water
.
c. If the product does not operate normally by following the
operating instruction. Adjust only those controls that are
covered by the operating instructions.
An improper adjustment
may result in damage and will often require extensive work
by a qualified technician to restore the product to its normal
operation.
d. If the product has been dropped or the cabinet has been damaged.
e. When the product exhibits a distinct change in performance —
this indicates a need for service.
9. 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 parts.
10. 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 conditions.
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. TO PREVENT ELECTRIC SHOCK DO NOT USE
THE (POLARIZED) PLUG WITH AN EXTENSION CORD RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY
INSERTED TO PREVENT BLADE EXPOSURE.
Safeguards
NOTE TO THE CA
TV SYSTEM INST
ALLER
THIS REMINDER IS PROVIDED TO CALL THE CATV SYSTEM INSTALLER’S
ATTENTION TO ARTICLE 820-22 OF THE NEC THAT PROVIDES GUIDELINES
FOR PROPER GROUNDING AND, IN PARTICULAR, SPECIFIES THAT THE
CABLE GROUND SHALL
BE CONNECTED TO THE GROUNDING SYSTEM OF
THE BUILDING,
AS CLOSE
T
O THE POINT OF CABLE ENTRY AS PRACTICAL.
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1. Video Modulation Level: Green LED indicates correct video
modulation level.
2. Audio Modulation Level: Green LED indicates correct audio
deviation level.
3. A/V Ratio Adjustment: Used to set level of audio carrier.
4. Video Modulation Adjust: Used to set the video depth of modulation
5.
Left / Right Ster
eo Level Adjust:
Used to set left or right channel
audio level. (Active only with stereo option)
6.
Mono Adjustment:
Used to set mono level.
7. Channel Display: Indicates which channel is active.
8.
Of
fset Indicator LEDs:
Indicate if standard or of
fset formats
are active.
9.
Offset Selector:
Used to select standard or of
fset formats.
10.
4.5MHz Level:
Used to adjust 4.5 MHz level.
11. Output Level: Used to set RF output level.
12.
-30 dB T
est Point:
Used to monitor RF output level.
13. RF Output Port: Connect this port to distribution system.
14.
Composite I.F
. Input:
Input from I.F
. scrambler or I.F
. output.
15. Composite I.F. Output: To I.F. input or to scrambling device.
16.
V
ideo I.F
. Input (45.75 MHz):
V
ideo carrier I.F
. input from video
scrambling device or video carrier I.F output.
17. Video I.F. Output (45.75 MHz): Video carrier I.F. output to scrambling
device or video carrier I.F. input.
18. Audio I.F. Input (41.25 MHz): Sound carrier I.F. input from audio
scrambling device or sound carrier I.F. output.
19. Audio I.F. Output (41.25 MHz): Sound carrier I.F. to audio
scrambling device or sound carrier I.F. input.
20. 4.5 MHz Input: Input for BTSC stereo encoder operation.
21.
MPX Out:
Used to provide MPX output to additional modulators
when internal stereo encoder is present, eliminating need for
additional encoders.
22. MPX In/Out: Loop the MPX Input and Output when internal stereo
encoder is used.
23. Video Loop In: Connect baseband video to this port.
24. Video Loop Out: This port provides the video sync to external
PM-SE stereo encoder.
25. Mono/Stereo Switch: Selects either mono or stereo modes. Stereo
mode is only present on stereo encoder equipped models.
26. Audio Input (Left, Right and Mono): Accepts any baseband audio
output source such as a satellite receiver, VCR, security camera or
cable converter
.
27. RS485: Not active at the present time.
28.
Power Cor
d Receptacle:
Connect power cord to this receptacle.
The switching power supply accepts any input voltage from
90 to 260 V
AC.
F860
Connections and Controls
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.picomacom.com
Installation Procedures
Adherence to these precautions will help prevent problems during initial installation of the F860.
1. Connect an I.F. jumper from the composite I.F. output to the composite I.F. input on the rear panel.
Connect an I.F. jumper from the video I.F. output to the video I.F. input on the rear panel.
Connect an I.F. jumper from the audio I.F. output to the audio I.F. input on the rear panel.
2. Connect the F860 to a 1
15 VAC grounded receptacle. Observe the front panel LEDs indicating the unit is active.
3. Using a signal level meter or spectrum analyzer, set the output level to 60 dBmV.
4. Check the aural carrier level. It should be set at 15 dBmV below the video carrier
.
WARNING: When connecting the F860 directly to a TV set, attenuate the output sufficiently to prevent overdriving the TV. The
front panel test point is useful for monitoring modulator output.
5.
Connect a 1.0 volt peak-to-peak video source to the “VIDEO IN” on rear panel. Connect the “RF OUT” to a TV set, and compare
the contrast and brightness to a known signal (use off-air signal to insure a proper modulation level). If necessary, adjust the video
modulation until proper contrast is observed.
6. Connect an audio source to the “AUDIO IN” on rear of the unit. Set audio modulation (peak deviation) to 25 kHz with the audio
modulation adjustment. A known off-air signal and a TV may be used to set adjustment for equal audio level.
7. Connect the “RF OUTPUT” to a combining network.
FREQUENCY OFFSETS
The Federal Communications Commission requires that cable system modulators, which operate in the aircraft communications and
navigation bands, are offset in frequency by 12.5 kHz. The
F860 PLL oscillator is factory set to comply with FCC requirements for
frequency accuracy (±5 kHz) in the aeronautical communication and navigation bands.
FREQUENCY CHANNEL NUMBER OFFSET
121.2625 – 137.7625 MHz
A,B,C 14,15,16
12.5 kHz
109.2750 – 1
19.7750 MHz
A-2, A-1
98, 99 25 kHz
229.2625 – 329.7625 MHz
L
– EE 25 – 41 12.5 kHz
331.275 – 335.775 MHz FF 42 25 kHz
337.2625 – 401.7625 MHz GG – QQ 43 – 53 12.5 kHz
Harmonically Related Coherent (HRC) video carriers and Incrementally Related Coherent (IRC) video carriers are CA
TV channel
assignment methods to reduce the effect of beat products. The technique is used in expensive phase-locked headends where all units
are tied to a master 6.0003 MHz oscillator with a maximum error of 1 Hz.
F860
Installation
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. 1
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Ph: 800-421-6511
www.picomacom.com
Installation
Signal Combining Methods
The output levels of the modulator should be the same as the output of the off-air strip amplifiers. The F860 modulators are usually
combined with either the DSP806 channel processors, or XBS series strip amplifiers. Three methods are suggested to combine strip
amplifier, modulator and processor outputs.
The
C860 twenty-four channel combiner consists of two rows of directional couplers combined by a hybrid splitter. The directional
coupler combining provides high isolation (>40 dB) between the inputs. Normally, the odd channels are combined on one row while
even channels are combined on the other row of directional couplers.
The combiner loss is 28-30 dB per channel. Used with an
L860
distribution/launch amplifier the system’s RF output provides high quality, distortion-free programming.
The CHC-16U/860 provides both signal combining and post-amplification of the headend signals. Up to 16 channels may be combined using the
CHC-16U/860.
The combiner gain is 15 dB per channel.
The final method of combining signals uses three hybrid splitters per headend rack. The odd channels are combined in one splitter,
the even channels in another splitter and the two splitters are combined to a single output with a third splitter. Each rack is then
combined with a final splitter prior to the
CA-30RK1000 or L860 post amplifier.
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8
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Ph: 800-421-6511
www
.picomacom.com
Warranty
Five-Year Limited Warranty*
Pico Macom, Inc. warrants to the original purchaser this product shall be free of defects in material and craftsmanship with
only the limitations or exclusions set out below.
D
uring the warranty period, Pico Macom, Inc. or an authorized Pico Macom service facility will provide, free of charge, the
parts and labor necessary to correct defects in material and workmanship.
Warranty Duration
This warranty shall terminate five years* from the original date of purchase of the product or at a time the product is:
1. Misused or damaged due to neglect or improper installation
2. Modified
3. Repaired by someone other than the warrantor
4. Sold by the original purchaser
Statement of Remedy
To obtain such a warranty service, contact the salesperson where the product was obtained. You will be issued a Return Authorization
(RA) number which will be used to track your product. Be prepared to provide:
1. The model number and channel number of the product
2. The date of purchase
3. A specific identification of the problem
Deliver the products to Pico Macom, Inc. or ship the products in the original packing material to the address below. Include satisfactory
evidence of the date of purchase.
Products will not be accepted by Pico Macom, Inc. without the RA
number clearly indicated on the shipping label.
The foregoing constitutes the Pico Macom, Inc. entire obligation with respect to this product and the original purchaser and any user
or owner shall have no other remedy and no claim for incidental or consequential damages. 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 or may not apply to you.
This warranty gives you specific legal rights, and you also have rights, which vary from state to state. (U.S.A.)
Pico Macom, Inc.
355 Parkside Drive
San Fer
nando, Califor
nia 91340
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