Specifications - Pico Macom PFAM550MT Installation And Operation Manual

PFAM550MT
POWER
RF OUT
RF
Channels:
Frequency Range:
Output Level:
Output Impedance:
Output Return Loss:
Audio/Video Ratio:
Frequency Stability:
Spurious Output:
C/N (In-Band):
C/N (Out-of-Band):
Fv+6 MHz (Upper Adj. Reject):
Fv-1.5 MHz (Lower Adj. Reject): >60 dBc
I.F Frequency: Video
Audio
Audio
Baseband Input Impedance:
Baseband Input Level:
Pre-emphasis:
Flatness: Left Audio
Right Audio
FREQUENCY OFFSETS
The FCC requires that cable system modulators, which operate in the aircraft
communications and navigation bands, are offset in frequency by 12.5 kHz. The
PFAM550MT PLL oscillator is factory set to comply with FCC requirements for
frequency accuracy (+/- 5 kHz).
HRC and IRC video carriers are CATV channel assignment methods to reduce
the effect of beat products. The technique is used in phase-locked headends where
all units are tied to a master 6.0003MHz oscillator with a maximum error of 1 Hz.
PFAM550MT
CATV Microprocessor-Control Agile A/V Modulator
VIDEO
OVER VIDEO VIDEO/AUDIO
MOD MOD RATIO
COMP IF COMP IF VIDEO IF AUDIO IF
IN OUT IN
82 channels (2-78 & 95-99)
54-550 MHz & 54-860Mhz
60 dBmV min., 62 dBmV typ.,
adjustable from front panel
75 ohms
15 dB
Adjustable -7 to -22 dB below
video carrier
±5 kHz in aeronautical band
-60 dB below video carrier
with A/V ratio @ -15 dB
>65 dB
>70 dB
>60 dBc
45.75 MHz
41.25 MHz
600 Ohms unbalanced
0.5 V p-p for 25 kHz peak dev
75 microseconds
1.5 dB max. 50 Hz to 15 kHz
1.5 dB max. 50 Hz to 15 kHz
Ph: 800-421-6511

Specifications

AUDIO
STD
AUDIO OVER OFFSET
MOD MOD
HRC
+25K
+12.5K
Front View
AUDIO IF 4.5MHz VIDEO
LEFT
IN VIDEO IF OUT OUT IN IN AUDIO
CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD, REPLACE ONLY WITH SAME TYPE 0.5A 125V FUSE
Rear View
Video
Input Level:
Input Type:
Frequency Response:
Differential Gain:
Differential Phase:
Chrominance luminance delay: *See note
Hum and Noise:
Video Signal to Noise:
ed)
Input Level Range:
*NOTE: Meets FCC group delay predistortion requirements for
color transmission.
General
Power Input:
Operating Temperature:
Dimensions:
Weight:
Connectors: RF & Video
Audio
Ordering Information
PFAM550MT
FREQUENCY
108 to 118MHz
118 to 137MHz
225 to 328.6MHz
328.6 to 225.4MHz
335.4 to 400MHz
www.picomacom.com
CHANNEL
SELECT
RF RF
OUT LEVEL TEST POINT
-30dB
600W MAX
RIGHT 117VAC
GND.
AUDIO
60Hz 38W
FUSE
125VAC
0.5A
1.0 Vp-p min for 87.5% mod.
Clamped video neg. sync
±0.8 dB, 30 Hz to 4.2 MHz
<5% (10 to 90% APL)
<5° (10 to 90% APL)
-60 dB @ 87.5% modulation
-60 dB minimum (weight-
0.5 V p-p to 1.5 V p-p
120 VAC, 60 Hz, 28 W
-10° C to + 50° C
3
19˝(L) x 9˝(D) x 1 / ˝(H)
4
8.2 lbs.
"F"type
Terminal strip
CHANNEL NUMBER
A, B, C 14,15,16
A-1, A-1 99, 98
K - DD 24-40
FF 42
GG - QQ 43-53
CATV Micropr
OFFSET
12.5 kHz
25 kHz
12.5 kHz
25 kHz
12.5 kHz
5
Rev. 07/03