PDI Communications, Inc.: Headend Equipment: PDI-50121AD Demodulator

PDI-50121AD Demodulator

PDI-50121AD Demodulator

The PDI-50121AD Demodulator

The PDI-50121AD is a space saving frequency agile television demodulator. Input tuning covers the range of 54 to 811MHz with the ability to properly receive CATV channels already offset 12.5 or 25 kHz as in node operation and provides baseband Audio and Video outputs for any channel in that spectrum. Its ³user friendly² selection is simple front panel push buttons with non-volatile memory. Rock solid PLL tuning by its advanced microprocessor guarantees precise UHF/VHF or CATV (STD/HRC/IRC) channel access. A video filter ensures optimal picture enhancement.

PLL tuning for precise frequency control

User friendly channel selection

Wide input AGC holds output constant

Adjustable audio and video output

Band set mode selector

ISO certified

RF SECTION
Frequency Coverage	54 to 811MHz
Selection	Agile: Front Panel up/down LEDs
FCC Offset	NA
Input Level	75ohms
Input Level Range	-15 to +15 dBmV
Noise Figure	8-11 dB
Image Rejection VHF	65 dB
Image Rejection UHF	50 dB
Output Impedance	75ohms

VIDEO SECTION
Output Level	0.8 to 1 volt peak to peak
Frequency Response	+1.2 dB @ 25 Hz to 4 MHz
Differential Gain	<4%
Differential Phase	<4 degrees
Output Impedance	75 ohms

AUDIO SECTION
Output Level	0.5 volts RMS
Frequency Response	1.5 dB (50 Hz to 15 KHz)
S/N ratio	>55 dB
BTSC Stereo	Multiplexed Thru
Total Harmonic Distortion	1%

OPERATIONAL
Power	+12, +5 VDC, 250 µA
Temperature	0 to 50°C
Height	2 RU

OTHER
PLL (Phase Locked Loop)	Yes
UL Listed	No

PDI-50121AD in 12in1 Rack

PDI-50121AD Demodulator in 12in1 Rack