Pico Macom M860 User manual

PICO MACOM, INC.
M860
The Pico Macom M860 is a professional re-broadcast grade microprocessor con-
trolled phase-locked loop synthesized single channel audio-video modulator. The
M860 provides 60dBmV minimum output from CATV channels 2 to 125 (54-806
MHz) while accommodating HRC and IRC offset frequencies. The M860 features
a composite audio-video IF loop, wich provides compatibility with encoders, ghost
cancellers, and video-override applications.The unit is lab retunable within band
via front panel channel selection and minimum output filter retuning. The M860 is
equipped with a pre-emphasis disable switch which enables pass-through of high-
fidelity BTSC stereo signals where available. 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 enhances stability, minimizes adjacent channel interference
and assures 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. Pico Macom backs up this product with its industry leading
5-year limited warranty.
M860
806MHz Channelized-Agile CATV A/V Modulator
806MHz Channelized-Agile CATV A/V Modulator
Headend & Electronics
355 Parkside Drive San Fernando, CA 91340
Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: [phone] A-15
Rev. 12/02
125-Channel Range 54-806 MHz
(CATV 2-125)
60 dBmV minimum adjustable out-
put for optimum carrier-to-noise
performance
Composite audio-video IF loop pro-
vides compatibility with encoders,
ghost cancellers, and video
override applications
BTSC stereo compatible provides
pass-through for stereo signals
State-of-the-art microprocessor
control digital phase-locked loop
(PLL) design guarantees precise
frequency locking for solid drift-
free operation
SAW filtered for superior adjacent
channel performance enables
drop-in channel expansion
Front panel controls and test point
enables easy setup and monitoring
Digital display provides quick
channel identification
In-band carrier-to-noise ratio >60dB
ensures superior picture quality
IRC and HRC offset available for
frequency settings in systems using
offset channels
Lab retunable within band via
front panel channel selection and
minimum output filter retuning
www.picomacom.com

M860
Channels: 125 channels (CATV 2-125)
Frequency Range: 54-806 MHz
Output Level: 60 dBmV min., adjustable
Output Control Range: 13 dB
Output Impedance: 75 ohms
Ouput Return Loss: -15 dB
Audio/Video Ratio: Adjustable -7 to -22 dB
Below video carrier
Frequency Stability: ±5 kHz in aeronautical band
Spurious Output: -60 dB below video carrier
with A/V ratio @ -15 dB
C/N (In-Band): >60dB
C/N (Out-of-Band): >65dB
Fv+6 MHz (Upper Adj. Reject): >60dBc
Fv+1.5 MHz (Lower Adj. Reject): >60dBc
I.F Frequency: Video 45.75 MHz
Audio 41.25 MHz
Input Level: 1.0 V p-p min for 87.5% mod.
Input Type: Clamped video neg. sync
Frequency Response: ±0.8 dB, 30 Hz to 4.2 MHz
Differential Gain: <5% (10 to 90% APL)
Differential Phase: <5° (10 to 90% APL)
Chrominance luminance delay: *See note
*NOTE: Meets FCC group delay predistortion requirements for
color transmission.
Power Input: Switching 90-260 VAC
Operating Temperature: -10° C to +50° C
Dimensions: 19˝(L) x 9˝(D) x 13/4˝(H)
Weight: 7.4 lbs.
Connectors: RF & Video “F” type
Audio Terminal strip
Base-band Input Impedance: 600 ohms unbalanced
Base-band Input Level: 0.5 Vp-p for 25 kHz peak dev.
Preemphasis: 75 microseconds
Flatness: 1.5 dB max. 50 Hz to 15 KHz
Connectors: RF and Video - “F” type
Audio - Terminal strip
RF Video
Audio General
Product Specifications
806MHz Channelized-Agile CATV A/V Modulator
AUDIO VIDEO MODULATOR
M860 12.5K
25K
LOCK
IRC HRC STD
LOCK
OFFSET
CH
CH STORE
TYPE
OUTPUT
LEVEL
AURAL LEVEL AUDIO MODULATION VIDEO MODULATION TEST
-30dB
RF OUT 4.5 MHz IN IF OUT IF IN
VIDEO IN
AUDIO
IN
117VAC
60Hz 38W
600W MAX
125VAC
0.5A
CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD, USE ONLY WITH SAME TYPE 0.5A 125V FUSE
L GND R
FUSE
Front View
Rear View
Ordering Information
M860 – Channel Specify CATV or UHF
www.picomacom.com
A-16
Rev. 12/02 355 Parkside Drive San Fernando, CA 91340
Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: [phone]
Specifications Subject to Change © Copyright 2003 Pico Macom, Inc.