Pico Macom PFAM550 User manual

PICO MACOM, INC.
PFAM550
82-Channel frequency range
54-550 MHz (CATV 2-78, 95-99)
DIP switch controlled phase-
locked loop for solid drift-free
output on any channel
SAW filtered for superior adjacent
channel performance enables
drop-in channel expansion
57dBmV output for optimum
carrier-to-noise performance
Carrier-to-noise ratio >60dB
provides superior picture quality
Front panel test point for easy RF
level system monitoring
Composite audio-video IF loop
provides compatibility with
encoders, ghost cancellers, and
video-override applications
IRC and HRC offset available for
frequency settings in systems
using offset channels
Double heterodyne conversion
provides superior spurious
harmonic output suppression
UL Approved
The PFAM550 is a professional re-broadcast grade frequency agile double
heterodyne conversion audio/video modulator. Its SAW filter provides superior
sideband filtering, adjacent channel compatibility and spurious free output.
The PFAM550 provides 57±2 dBmV output over 82 channels from CATV
channel 2 to 78 accommodating HRC and IRC offset frequencies. The unit
features a composite audio-video IF loop, which provides compatibility with
encoders, ghost cancellers, and video-override applications. Front panel
DIP-switch controlled phase-locked-loop (PLL) allows easy channel selection
and drift-free channel stability. High quality modulation and RF level control
potentiometers assure years of reliable operation. The modulator is shipped
with all internal adjustments pre set, and FCC Docket 21006 offsets are
standard. Pico Macom backs up this product with its industry leading 5-year
limited warranty.
PFAM550
550MHz Agile A/V Modulator
550MHz Agile A/V Modulator
www.picomacom.com
Headend & Electronics
355 Parkside Drive San Fernando, CA 91340
Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: [phone] A-19
Rev. 12/02

PFAM550
Video Channels: 82 channels (2-78 & 95-99)
Frequency Range: 54-550 MHz
Output Level: 45 to 57 dBmV, ± 2 dBmV
(adjustable from front panel)
Output Impedance: 75 ohms
Output Return Loss: -15 dB
Audio/Video Ratio: Adjustable -7 to -22 dB
below visual carrier
Frequency Stability: ±5 kHz in aeronautical band
Conforms to FCC Docket
21006
Spurious Output: -60 dB below video carrier
with A/V ratio @ -15 dB
C/N (In-band): >57 dB
C/N (Out-of-Band): >68 dB
Fv+6 MHz (Upper Adj. Reject): >60 dBc
Fv-1.5 MHz (Lower Adj. Reject):>60 dBc
Input Level: 1.0 V p-p min for 87.5% mod.
Input Type: Clamped video neg. sync
Video S/N: -60 dB minimum (weighted)
Input Level Range: 0.5 V to 1.5 V p-p
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 below
Hum and Noise: -60 dB @ 87.5 modulation
*NOTE:Meets FCC group delay predistortion requirements for
color transmission.
Power Input: 95 to 130 VAC, 60 Hz or
210-250 VAC, 50 Hz
Operating Temperature: -10° C to + 50° C
Dimensions: 19˝(L) x 9 3/8˝(D) x 13/4˝(H)
Weight: 3.8 lbs.
Connectors: All “F” type
Baseband Input Impedance: 600 ohms unbalanced
Baseband Input Level:
0.5 V p-p for 25 kHz peak dev.
Pre-emphasis: 75 microseconds
Flatness: 1.5 dB max. 50 Hz to 15 kHz
RF Video
Audio General
Product Specifications
550MHz Agile A/V Modulator
AGILE AUDIO VIDEO MODULATOR
PFAM 550
CATV SERIES
POWER
VIDEO
AUDIO
RATIO
AUDIO
OVER
MOD.
AUDIO
MOD.
ADJ.
VIDEO
MOD.
ADJ.
VIDEO
OVER
MOD.
CHANNEL SELECT
OUTPUT
LEVEL
TEST POINT
-30dB
RF OUT
IF IN IF OUT VIDEO IN AUDIO IN
AC117V
60Hz/35W
600W MAX
125VAC
0.5A
CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD, REPLACE ONLY WITH SAME TYPE 0.5A 125V FUSE
FUSE
Front View
Rear View
Ordering Information
PFAM550
www.picomacom.com
A-20
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.