Pico Macom PFAM-550SUB Benutzerhandbuch
CONTACT US TOLL FREE
800-421-6511
www.
picomacom
.com
PICO MACOM
dESCRIPTIONS
•
Five year warranty*
•
Supports HRC, IRC frequency offsets
•
Factory aligned to FCC Docket 21006 for
frequency offsets and stability
•
Professional picture quality
•
Front panel -30 dB test point
•
Rear panel AC convenience outlet
can be changed by resetting the DIP switches accessed
through the front panel. High quality external modu-
lation and RF level controls assure years of reliable
operation. The modulator is shipped with all internal
adjustments pre-set, and FCC Docket 21006 off-
sets are standard at no extra cost. Pico Macom Inc.
backs the product with a five year limited warranty. *
through the front panel. High quality external modu-
lation and RF level controls assure years of reliable
operation. The modulator is shipped with all internal
adjustments pre-set, and FCC Docket 21006 off-
sets are standard at no extra cost. Pico Macom Inc.
backs the product with a five year limited warranty. *
Audio
Baseband Input Impedance:
600 ohms unbalanced
Baseband Input Level:
0.5 Vp-p for 25 kHz deviation
Pre-Emphasis:
75 microseconds
Flatness:
1.5 dB max. 50 Hz to 15 KHz
General
Power Input:
117 VAC, 60 Hz or 220 VAC, 60 Hz
Operating Temperature:
-10° C to +50°
Dimensions:
19” L x 12” D x 1.75” H
Weight:
8.2 pounds
Connectors:
All “F” type
(Specifications subject to change without notice)
Specifications
Features
•
Double heterodyne conversion provides
superior spurious harmonic output supression
•
Channels T7 through 78 capable (5.75 to
550MHz)
•
57 ±3 dB output, 5.75 to 550 MHz
•
SAW filtered and I.F. loop
Description
The PFAM-550SUB is a frequency agile double hetero-
dyne conversion audio/video modulator. Its superior
sideband filtering provides adjacent channel compat-
ibility and FCC Docket 21006 frequency accuracy. The
PFAM-550SUB provides 57 ±3 dB output from sub-
band channel T7 through cable channel 78 including
HRC and IRC off-set frequencies. The channelization
dyne conversion audio/video modulator. Its superior
sideband filtering provides adjacent channel compat-
ibility and FCC Docket 21006 frequency accuracy. The
PFAM-550SUB provides 57 ±3 dB output from sub-
band channel T7 through cable channel 78 including
HRC and IRC off-set frequencies. The channelization
Specifications
RF
RF
Channels:
89 channels (T7-T13, 2-78 & 95-99)
Output Level: 45 to 57 dBmV, adjustable from front panel
Output Impedance:
Output Impedance:
75 ohm
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:
(In-band) CATV channels:
(In-band) CATV channels:
-60dBc, A/V ratio @ 15dB
(In-band) Sub-band
-57 dBc, A/V ratio @ 15dB
(Out-of Band) F≤550MHz
-54 dBc, A/V ratio @ 15dB
C/N (In Band):
>58 dB
C/N (Out-of-Band):
>68 dB
Fv+6.5 MHz (Upper Adj. Reject):
>60 dBc
Fv-1.5 MHz (Lower Adj. Reject):
>60 dBc
I.F. Frequency:
45.75 MHz
Video
Input Level:
0.6 V p-p min for 87.5% modulation
Input Type:
Composite video negative sync
Frequency Response:
±0.8 dB 30 Hz to 4 MHz
Differential Gain:
<3% (10 to 90% APL)
Differential Phase:
<2° (10 to 90% APL)
Chrominance Luminance Delay:
<50 nsec
Hum and Noise:
-60 dB @ 87.5 modulation
Video Signal to Noise:
-60 dB minimum (weighted)
Input Level Range:
0.5 V to 1.5 V P-P
* One year warranty if sold outside U.S.A.