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PICO MACOM INC.

 

 

12500 Foothill Blvd.  •  Lakeview Terrace, CA 91342  •  (818) 897-0028  • (800) 421-6511 • FAX (818) 834-7197

Signal Combining Methods

I N S T A L L A T I O N

6

T

he final method of combining signals  uses

three hybrid splitters per headend rack.  The odd
channels are combined in one splitter, the even

channels in another splitter and the two splitters are combined to a single
output with a third splitter.  Each rack is then combined with a final splitter
prior to the CA-30RK550 post amplifier.

*BS - Denotes low, medium, high and superband 2 volt strip amps.

T

he output levels of the modulator should be

the same as the output of the off-air strip ampli-
fiers.  The PFAD 900cs demodulator can be
combined with either the M600 modulator or
the PFAM 550 agile modulator.  These are then

combined with the SP600 channel
processor or the  LBS/HBS  series
strip amplifiers.  Three methods
are suggested to combine strip am-
plifier, modulator and processor
outputs.

T

he PHC-12U twelve channel passive com-

biner  consists of two rows of directional cou-
plers combined by a hybrid splitter.  The direc-
tional coupler combining provides high isola-
tion (40 dB) between the inputs.  Normally, the
odd channels are combined on one row while
even channels are combined on the other row of
directional couplers.  The combiner loss is 16
dB per channel.

Ch. 2

Ch. 3

Ch. 4

+36dBmV

+60dBmV

SP600

*BS

V

A

+52dBmV

+52dBmV

+52dBmV

+10dBmv

+14dBmv
+10dBmv

SP600

*BS

V

A

+52dBmV

+52dBmV

+52dBmV

+10dBmV

+14dBmV

+10dBmV

SP600

*BS

V

A

+50dBmV

+50dBmV

+50dBmV

+10dBmV

+14dBmV
+10dBmV

Ch. 2

Ch. 3

Ch. 4

PAD

+58dBmV

EVEN CHANNELS

Ch. 2

Ch. 3

Ch. 4

ODD CHANNELS

+43dBmV

+43dBmV

+36dBmV

+60dBmv

6dB PAD

6dB PAD

RF

IN

RF

IN

RF

IN

RF

IN

RF

IN

RF

IN

PHC-12U

-16dB

CHC-16U

+10dB

to

+15dB

CA-30RK550

CA-30RK550

ATTENUATOR PAD

ATTENUATOR PAD

ATTENUATOR PAD

PFAD 900cs

M600

or

PFAM 550

RF

IN

RF

IN

RF

IN

PFAD 900cs

M600

or

PFAM 550

PFAD 900cs

M600

or

PFAM 550

T

he CHC-16U  sixteen channel active com-

biner provides both signal combining and post
amplification of the headend signals.  Up to 16
channels may be combined using the CHC-
16U
.  The combiner gain is 15 dB per channel.

Summary of Contents for PFAD900CS

Page 1: ...0 Foothill Blvd Lakeview Terrace CA 91342 818 897 0028 800 421 6511 FAX 818 834 7197 FREQUENCY AGILE AUDIO AND VIDEO DEMODULATOR Doc No OM2143N 2 REV B ECO 1770 P N 911045 Installation And Operation Manual PFAD 900cs NTSC ...

Page 2: ...ning Unplug this appliance from the wall outlet before cleaning Use a damp cloth for cleaning Do not use liquid cleaners or aerosol cleansers 6 Do Not Use Attachments not recommended by the manufac turer or they may cause hazards Important Information 7 Water and Moisture Do not use this product near water for example near a bathtub washbowl kitchen sink laundry tub in a wet basement or near a swi...

Page 3: ...ly from the type of power source indicated on the marking label If you are not sure of the type of power supplied to your home consult your appliance dealer or local power company 12 Power cord Protection Power supply cords should be routed so they are not likely to be walked on or pinched by items placed upon or against them Pay particular attention to cords and plugs convenience receptacles and ...

Page 4: ...vision signal in the 54 MHz to 806 MHz frequency range and converts it to baseband video and audio Two additional outputs are provided by the PFAD 900cs an I F output to monitor the status of the tuner and also for use with other up converters and a composite multiplex output is provided for stereo applications PICO MACOM INC backs the product with a two year limited warranty Specifications RF Ban...

Page 5: ... used 1 Power on LED Indicates power is on when lit 2 Channel Number Display Indicates demodulated channel 3 Mode LED s Indicates which mode is operative TV Standard CATV CATV IRC or CATV HRC 4 Mode Selector Switch Push this button to select mode 5 Channel Down Switch Push this button to select lower channel 6 Channel Up Switch Push this button to select higher channel 7 RF In This F connector acc...

Page 6: ...AINST FIRE HAZARD USE ONLY WITH SAME TYPE 0 5A 125V FUSE CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD USE ONLY WITH SAME TYPE 0 5A 125V FUSE AUDIO OUT VIDEO OUT VIDEO OUT 117VAC 60Hz 16W RF IN 600W MAX 4 5 MHZ OUT IF OUT VIDEO OUT MPX OUT AUDIO OUT CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD USE ONLY WITH SAME TYPE 0 5A 125V FUSE VIDEO OUT 117VAC 60Hz 16W RF IN 600W MAX 4 5 MHZ OU...

Page 7: ...he PHC 12U twelve channel passive com biner consists of two rows of directional cou plers combined by a hybrid splitter The direc tional coupler combining provides high isola tion 40 dB between the inputs Normally the odd channels are combined on one row while even channelsarecombinedon theotherrow of directional couplers The combiner loss is 16 dB per channel Ch 2 Ch 3 Ch 4 36dBmV 60dBmV SP600 BS...

Page 8: ...will be issued a Return Authoriza tion RA number which will 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 Delivertheproductsto PicoMacom Inc or ship the products in the origi nal packing material at the address at the bottom of the page Include satisfactory evidence of the ...

Page 9: ...PICO MACOM INC 12500 Foothill Blvd Lakeview Terrace CA 91342 818 897 0028 800 421 6511 FAX 818 834 7197 N O T E S ...

Page 10: ...PICO MACOM INC 12500 Foothill Blvd Lakeview Terrace CA 91342 818 897 0028 800 421 6511 FAX 818 834 7197 N O T E S ...

Page 11: ...PICO MACOM INC 12500 Foothill Blvd Lakeview Terrace CA 91342 818 897 0028 800 421 6511 FAX 818 834 7197 N O T E S ...

Page 12: ...PICO MACOM INC 12500 Foothill Blvd Lakeview Terrace CA 91342 818 897 0028 800 421 6511 FAX 818 834 7197 PICO MACOM INC U S A Spec Tru ...

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