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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 offset 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-of-
band 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 offset channels

F860 Manual.qxd  11/21/05  10:17 AM  Page 2

Содержание F860

Страница 1: ...Installation and Operation Manual F860 Fixed Modulator Operation Manual Rev 11 05 Ph 800 421 6511 www picomacom com F860 Manual qxd 11 21 05 10 16 AM Page 1 ...

Страница 2: ... 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 ...

Страница 3: ...n 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 µs 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...

Страница 4: ...sons 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 o...

Страница 5: ...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 ...

Страница 6: ...evel 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...

Страница 7: ...ined 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 com bined using the CHC 16U 8...

Страница 8: ...ll 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 t...

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