PDT Catalog

PDT Ltd.
ProductCatalogue
Headend Equipment
Reliable
Efficient
Professional

Modulator
Deodulator
Amplifier
Combiner
Accessories
....................................................................................................
....................................................................................................
....................................................................................................
....................................................................................................
...................................................................................................
19 inch Audio/ Video Modulator : LBM-55SAW ....................................
Saw Filtered Mini-Modulator : LCM-45 ..................................................
19inch Audio/ Video Demodulator : LBD-806 .......................................
Saw Filterd Mini-Demodulator : LDM-860 .............................................
12 Input Combiner : LBC-12 .................................................................
Push-Pull Amplifier : LA-30/550 / LA-30/1000 / LA-50/550 ................
Mini Power Supply : MPS-16 ................................................................
Cooling System : POR-S .....................................................................
12-Slot Mini-Mod / Demod Chassis : MLPS-16 ...................................
1
3
7
9
15
17
19
20
21
Contents
Saw Filtered Agile A/V Mini-Modulator : PCMA .................................... 5
13
11

1 PDT Ltd. Product Catalog
19 inch Audio / Video Modulator : LBM-55SAW
Features
 Front panel control
 IRC and HRC offset available
 82 channel, frequency range 54 – 550MHz
 55dbmv minimum output, 64db in-band carrier
 SAW Filtered IF for superior adjacent channel performance enable drop-in channel expansion
Description
The LBM-55SAW is a low cost, professional quality, on-channel audio/video modulator. The
LBM-55SAW is ideal for placing audio and video onto VHF and UHF channel. Any standard
audio/video source can be used, such as satellite receivers, television cameras, video tape
recorders, or television demodulators. This makes the LBM-55SAW perfect for small headend
applications, where price is a major consideration. It meets FCC Rule 21006 aeronautical
frequency offset requirements. The modulator accepts standard polarity (sync negative) video
in the range of 0.7 to 2.5 Vp-p. The unit has a complete set of level controls, including: video,
audio, aural carrier, and RF output. All controls are located on the front panel for operation.
Tel : +886-7-8412828 Fax : +886-7-8411196 http://www.pdtltd.com.tw sales@pdtltd.com.tw

Descriptions MIN TYP MAX UNIT NOTES
RF Output Frequency Range 54 -- 550 MHz Fixed Channel
Output Level 55 --- --- dBmv
Output Adjustment 10 12 --- dB
-30 dB Test Point -- ±2 ±3 dB Output 75 ohm
Spurious Output @55dBmv
A/V Carrier -15db
-60 -63 -- dBc 54 – 550MHz
Frequency Stability -- ±5 ±10 KHz Offset CH. ±5KHz
Output Return Loss 12 15 -- dB Output @55dBmv
Audio Carrier Adjustment 10 -- 22 dB Tolerance ±3dB
Video
--
--
--
Input Level @87.5﹪ Modulation -- 1.0 -- Vp-p
Visual C/N @4MHz BW 60 63 -- dB
Frequency Response @30Hz to 4MHz -- ±1.0 ±1.5 dB
Differential Gain -- -- 5 %
Differential Phase -- -- 5 Deg.
Audio
Input Level @25KHz Deviation 0.5 -- -- Vp-p. Sine(1KHz)
Sub-Carrier Frequency 4.5MHz -- ±1 ±3 KHz
Audio Response 40Hz to 15KHz -- -- ±1.5 dB 75us pre-emphasis
Peak to peak Video to 60Hz RMS Hum -60 -65 -- dB
Operating Temperature 0 -- 50 ℃
AC Power 115 VAC ±10%, 60Hz -- 10 -- w
Dimensions 19" (W) x 3" (D) x 1.75" (H)
Weight 3.6 lbs.
Specifications
19 inch Audio / Video Modulator : LBM-55SAW 2
Address : 7F-1, No. 286-5, Xinya Rd, Qianzhen District. Kaohsiung, Taiwan

Saw Filtered Mini-Modulator : LCM-45
Features
 Front Panel Access Controls
 IRC and HRC offset available
 LED Display & Low Power Consumption
 Optional PAL Format Channels Available
 125 Channel, Frequency Range 54 – 860MHz
 Front panel access controls enables easy setup
 SAW Filtered Used & Auto- Connection Function
 Continuous Channel Using (Guarantee Not Jam)
 45dBmV Minimum Output For a 66dB In-Band Carrier
 Compatible With Most Manufacturers’ Mini-Modulator Chassis
 CPU Micro-Computer Control, Stable Frequency Transmission
Description
LCM-45 a high-performance CATV Audio Video Mini-Modulator. This modulator accepts any
audio-video baseband television signal and provides a 45dBmV minimum output and a 66dB in-
band carrier to noise ratio providing superior picture quality. LCM-45 covers channels 2 to 125
with frequency range from 54 to 806 MHz while accommodating HRC and IRC offset frequencies.
It is SAW filtered for superior adjacent channel performance enables drop-in channel expansion.
The Single-slot design allows up to 12 or 16 units in universal standard chassis. It is also
compatible with most manufacturer’s mini modulator chassis. The front panel access controls
design enables easy setup. It is also available for optional PAL format channels.

Saw Filtered Mini-Modulator : LCM-45 4
Specifications
RF Output Freq. Range 54 ---- 650 MHz Fixed channel
Output Level 45 46.5 ---- dBmV
Output Adjustment 10 15 ---- dB
Output Return Loss 10 14 ---- dB Output
@45dBmV
Spurious Output @45 dBmV
(A/V Carrier-15dB)
-55 -60 ---- dB
Frequency Stability ----- + 5 + 10 KHz Offset CH +
5KHz Max
Audio/Video Ratio 10 16 22 dB Present-16dB
Video
Input Level @87.5 modulator 0.7 ---- ---- Vp-p
Visual C/N @4MHz BW 55 60 ---- dB
Frequency Response
@30Hz to 4MHz
---- + 0.5 + 1.2 dB
Differential Gain ---- + 4 + 5 %
Differential Phase ---- + 2 + 5 Deg.
Audio
Input Level @25 KHz
Deviation (1KHz)
0.5 ---- ---- Vp-p
Sub carrier Frequency 4.5 MHz ---- + 2 + 5 KHz
Audio Response 50Hz to
15KHz (75μ pre-emphasis)
---- + 1 + 1.5 dB
DC POWER 12 V
5 V
100
160
mA
mA
Dimensions 1˝( L) x 8.7˝ (D) x 3.4˝ (H)
Weight 1 lbs.

Saw Filtered Agile A/V Mini-Modulator : PCMA
Features
 PAL option available for international operation

IRC and HRC offsets available for frequency settings in systems using offset channels
 Three-digit LED display provides quick channel identification

Non-volatile memory ensures channel programming remains after power loss
135 Channel, Frequency Range 54 – 860MHz (CATV 2-13, A1-A5, A-ZZZ, 89-135, UHF 14-69)

Agile microprocessor control enables quick digital push-button channel selection for ease of
installation, configuration and improved system uptime

SAW (surface acoustic wave) filtered for superior adjacent channel performance enables drop-in
channel expansion


BTC stereo compatible pre-emphasis disable switch provides pass-through for stereo signals
Compatible With Most Manufacturers’ Mini-Modulator Chassis

Single-slot design allows up to 12 units in 2U chassis

Saw Filtered Agile A/V Mini-Modulator : PCMA 6
RF Output Frequency Range 54 -- 860 MHz Agile Channel
Digital Display : CATV Band 2 --- 135 CH STD/HRC/IRC
TV Band 2 --- 69 CH
FCC Frequency Offset
Pre-programmed (0,+12.5KHz,
+25KHz) Frequency Stability -- ±5 ±10 KHz
Output Level 45 -- -- dBmv
Output Adjustment Range 12 15 -- dB
Spurious Output @45dBmv
A/V Carrier -15db
960.25MHz-RF output Freq.
-57
-55
-60
-60
--
--
dBc
dBc
40MHz~900MHz
Output Return Loss 5 -- -- dB Output @45dBmv
Aural Carrier Adjustment Range 10 -- 23 dB Tolerance ±3dB
In-Channel C/N @4MHz BW 60 63 -- dB
Video
Input Level @87.5﹪ Modulation -- 1.0 -- Vp-p
Frequency Response @30Hz to 4MHz -- ±1.0 ±1.5 dB
Differential Gain -- -- 5 ﹪
Differential Phase -- -- 5 Deg.
C/L Delay: (meets FCC CATV group delay pre-distortion)
Audio
Input Level @25KHz Deviation 0.5 -- -- Vp-p Sine(1KHz)
Subcarrier Frequency 4.5MHz -- ±1 ±2 KHz
Audio Response 40Hz to 15KHz -- -- ±1.5 dB 75us pre-emphasis
Operating Temperature 0 -- 50 ℃
DC Power 12V : 250 mA / 5V : 300 mA
Dimensions (mm) 1˝ (L) x 8.7˝ (D) x 3.4˝ (H)
Weight 1 lb.

19 inch Audio /Video Demodulator : LBD-806
Features
 LED display
 Non-voltage memory
 60dB signal to noise ratio
 Agile microprocessor control
 125 Channel, Frequency Range 50 – 860MHz
 Saw Filtered for precise adjacent channel rejection
Description
LBD-806 provides audio and video output from any channel in the 50 to 806 MHz frequency
range. This unit is ideal for signal monitoring and signal conditioning (audio/video processing
and remodulation) applications. The LBD-806 takes a single channel in the 50 to 806 MHz
broadcast frequency range (either VHF, UHF, or CATV channels) and demodulates the audio
and video information. Baseband audio and video are provided as outputs. This model features
a rock solid, PLL synthesized frequency control. Frequency selection is accomplished via front
panel LEDS and channel up/down buttons. A channel lockout mode is also provided to prevent
accidental channel changes.

19 inch Audio /Video Demodulator : LBD-806 8
Specifications
Input Freq. Range 54 ---- 860 MHz
Total 155 Channels
Antenna : VHF CH2 to CH13
UHF CH14 to CH69
Cable : CH2 to CH125
Input Impedance 75 Ω
Input Signal Range -5 -30 dBmV
Noise Figure 8 10 dB
V.S.W.R 5 7 dB
Image Refection (G.R = 0 dB)
VHF
UHF
50
45
65
50
dB
dB
Cross Modulation + 2CH (G.R = 0dB)
Undesired Signal is 30% AM Mod 70 80 dB
Output Port
Video Output
Audio Output @ 1KHz
0.7 Vp-p
0.7 Vp-p
1 Vp-p
1 Vp-p
75 Ω
600 Ω
AC Power Input Voltage 105-130 VAC 60Hz
Dimensions : 19˝ (L) x 3˝ (D) x 1.75˝ (H)
Weight: 3.3 lbs.

Saw Filtered Mini-Demodulator : LDM-860
Features
 Digital display
 60dB signal to noise ratio
 125 Channel frequency range 54~806MHz
 (CATV 2~13, A1~A5, A~ZZZ, 89~125, UHF 14~69)
 CPU micro-compute control, stable frequency transmission
 Fully compatible with most other manufacturers’ “mini-mod” chassis
 Non-volatile memory ensures channel programming remains after power loss
 Agile microprocessor control with push-button channel selection provides ease of installation,
configuration and servicing
Description
LDM-860 is a frequency agile professional grade, microprocessor controlled CATV mini
demodulator. The unit accepts any NTSC television signal in the 54-806MHz frequency-range
converting it to baseband video and audio, while maintaining over 60Db S/N ratio. Its design
enables it to be installed in other manufacturers’ mini-mod chassis. The unit’s phase locked-
loop frequency control, envelope signal detection, and superior SAW filtering minimize adjacent
channel interference and assure accurate and spurious free performance. IRC or HRC offsets
can be activated via push-button switches on the front panel. The unit’s PLL circuitry in
conjunction with the non-volatile memory contained in the microprocessor ensures easy and
reliable channel selection and restoration.

Saw Filtered Mini-Demodulator : LDM-860 10
Specifications
RF
Channels 125 Channels (CATV 2 - 125)
Input Frequencies 54 – 860 MHz
Input Impedance 75 Ω
Noise Figure 5dB – VHF Band, 7dB – UHF Band
Input Return Loss 14dB – VHF Band, 8dB – UHF Band
Video
Video Output Impedance 75 Ω
Video Output Level 1.0 Vp-p
Video S/N -60dB minimum (weighted)
Differential Gain ＜5% (10 to 90% APL)
Differential Phase ＜5% (10 to 90% APL)
Chrominance Luminance delay Meets FCC group delay predistortion correction
for color transmission
Audio
Audio Output Impedance 600 Ω
Audio Output Level 800 mV minimum
Deemphasis 75 microseconds
Flatness 1.5 dB max. 50Hz to 15kHz
General
Power Input + 12 VDC, + 5 VDC
Operation Temputure -10°C to + 50°C
Dimensions 2.07˝ (L) x 8˝ (D) x 3.45˝ (H)
Weight 0.7 lbs.

24-Input Combiner : LBC-24
Features
 165 Channel, Frequency Range 54 – 1Ghz


Two-way digital signal or analog requirement
 -30 dB Port- to -port isolation (less undesired loss)
Description
LBC-24 is a professional and high quality passive combiner. It is designed for use in headend to
combine the outputs of multiple modulators and processors. It has twenty four input ports and
one combined output port and is intended to be “zero loss” combiners. This combiner features
high isolation between ports due to an integrated directional coupler design. The input ports of
the LBC-24 are broadband, accepting signals in the 54 to 1000 MHz frequency range. The
overall gain of the LBC-24 is variable using a built-in manual gain control, accessible via a front
panel control.
Directional coupler design & Low insertion loss

24-Input Combiner : LBC-24 12
Specifications
Number of Inputs 24
Bandwidth 54M 1G Hz
Isolation (opposite ports) 40 dB
Isolation (adjacent ports) 30 dB
Input / Output Impedance 75 Ω
Dimensions 19˝ (L) x 3˝ (D) x 1.75˝ (H)
Weight 3.3 lbs.
Test Point Loss 20
Insertion Loss -21 dB

16-Input Combiner : LBC-16 Series
Features
 Hybrid Push-Pull amplifier
 135 Channel, Frequency Range 54 – 1GHz
 Directional coupler design & Low insertion loss
 Two-way digital signal or analogue requirement
 -30 dB Port- to -port isolation (less undesired loss)
 LBC-16A : 550MHz / LBC-16B : 750MHz / LBC-16C : 860MHz / LBC-16D : 1GHz
Description
The LBC-16 is a professional quality, passive and active output combiner. It is designed for use
in headend to combine the outputs of multiple modulators and processors. It has sixteen input
ports and one combined amplified output port and is intended to be “zero loss” combiners. This
combiner features high isolation between ports due to an integrated directional coupler design.
The input ports of the LBC-16 are broadband, accepting signals in the 54 to 1000 MHz frequency
range. It employs a single push-pull CATV style hybrid module. The overall gain of the LBC-16 is
variable using a built-in manual gain control, accessible via a front panel control. This model is
provided with an 18 inch (457mm) long AC line cord and a rear panel AC convenience outlet,
permitting easy connections.

16-Input Combiner : LBC-16 Series 14
Specifications
Number of Inputs 16
Bandwidth 54M 1G Hz
Gain: 54~1GHz 3 8 dB
Isolation (opposite ports) 40 dB
Isolation (adjacent ports) 30 dB
Input Return Loss 12 16 dB
Output Return Loss 12 16 dB
Output Test Point -18 -20 -22 dB
Output Level Control Range 12 dB
Power: 50Hz 16W 220 VAC
Weight 3.3 lbs.

12-Input Combiner : LBC-12
Features
 165 Channel, Frequency Range 5 -1000MHz
 Two-way digital signal or analogue requirement
 -30db port-to-port isolation (less undesired loss)
 Directional coupler design and low insertion loss
 Convenience access for headend testing & monitoring
Description
LBC-12 is a professional quality, passive and active output combiner. It is designed for use in
headends to combine the outputs of multiple modulators and processors. This model has twelve
(12) broadband input ports and one combined output ports. This combiner features high isolation
between ports due to an integrated directional coupler design. The input port of it is broadband,
accepting signals in the 54 to 1000 MHz frequency range.

12-Input Combiner : LBC-12 16
Specifications
Number of Inputs 12
Bandwidth 40 1000 MHz
Insertion Loss
40 – 860 MHz
860 - 1000MHz
18
19
20
21
dB
dB
Isolation (opposite ports) 40 45 dB
Isolation (adjacent ports) 30 35 dB
Input Return Loss 12 16 dB
Output Return Loss 12 16 dB
Output Test Point -18 -20 -22 dB
Power
Weight 3.3 lbs.

Push-Pull Distribution Amplifier : LA-30/550 LA-30/1000 LA-50/550
Features
 Push-Pull Amplifier
 Low Distortion & High Performance
 Designed for CATV Apartment Distribution Systems.
 Easy-access controls and low-loss (-20dB) test point
 Use a Black Anodized Aluminum Extrusion protects the unit from damage
 Shielded enclosure provides over 95dB RFI shielding performance reducing leakage and ingress
Description
This model is high quality push-pull amplifiers producing signals with extremely low distortion
and harmonic content. It is designed for CATV apartment distribution systems. The rack
mounted amplifiers make excellent headend launch amplifiers. LA30 enclosure uses a black
anodized aluminum extrusion to assure reliable heat sinking and corrosion resistance.
LA-30/550 LA-30/1000 LA-50/550
Total # of
Channels
Input Level
(dBmV)
Output Level
(dBmV)
12 19 51
24 16 48
36 15 47
48 13 45
72 12 44
82 11 41
LA-30/550 LA-50/550
Total # of
Channels
Input Level
(dBmV)
Output Level
(dBmV)
7 11 61
12 3 53
36 -4 46

Specifications
LA-30/1000
Specifications LA - 30/550 LA - 30/1000 LA - 50/550
Frequency Range(MHz) 54 - 550 54 - 1000 54 - 550
Gain (dB) 30 30 50
Flatness (dB) ±0.5 (per channel) ±0.5 (54-1000MHz) ±0.75 max.
Gain Adjust Range (dB) 8 12 15
Slope Adjust Range (dB) 8 9 12
45dB (54 channels, -57dB
cross modulation)
45dB 45dB 45dB
Noise Figure (dB) 5.0 7.5 6.5
8Second Order Beats (dB) -70
-60 (129channels
@13dBmV iput level)
Composite Triple Beat (dB) -61
-58 (129channels
@13dBmV iput level)
Return Loss In (dB) 16 >20dB to 800 MHz -14
Return Loss Out (dB) 16 >12 dB to 800-1000 MHz -14
Test Points (dB) -20
Power Input DC 24V 1A
Operating Temperature -10°C to +50°C
Dimensions 8˝ (L) x 2.75˝ (D) x 4.5˝ (H)
Weight 2.3 lbs. 2.5 lbs. 2.31 lbs.
Input Capability 83dBuV(Ch.3input)
Impedance 75 Ohm
Connectors "F" female
Total # of Channels Input Level (dBmV) Output Level (dBmV)
12 23 53
24 20 50
36 19 49
48 17 47
72 16 46
96 14 44
144 13 43
158 12 42
Push-Pull Distribution Amplifier : LA-30/550 LA-30/1000 LA-50/550
18

19 Mini Power Supply : MPS-16
Mini Power Supply : MPS-16
Features
 Current overload protection

Internal fusing circuitry provides current overload protection and precise voltage regulation,
preventing component damage

High capacity fully regulated power supply provides the most efficient performance

High efficiency power supply equipped with cooling fan minimizes power consumption and
heat dissipation
Specifications
Input
Input Frequency 47 – 63 Hz
Input Voltage Range 100 – 240 VAC
Input Current 1.6 A (Max)
Output
Output Specifications V1 : 5V / 4A V2 : 12V / 4A
Output Power Range 68W (Max)
Ripple & Noise Zoom Vp-p Max (+5V / 4A , +12V / 4A)
Load Regulation +4.8 ~ +5.2 VDC ( ± 5% Max ) +11.6 ~ +12.5 VDC ( ± 5% Max )
Operating Temperature 0°C – 40°C
Storage Temperature -40°C - 85°C
Connectors
Input Power Connector IEC 320 power lnlet
Output Connector 5V / 12 / GND 16 pieces of 3 pin wire assembly
Dimensions 7.8”(W) x 4.3”(H) x 3.5”(D)
Weight 1.1 lbs.

Headend Cooling System : POR-S 20
Headend Cooling System : POR-S
Features
 LED indicators
 Compact 1 RU high

Fits standard 19˝ EIA rack width
 Circuit protected power supply protects from current overload
 Low noise brushless blowers allow for an extremely quiet operation
 UL-approved external universal AC power adapter for domestic and international use
 Increases electronic equipment longevity, by reducing equipment temperature 2-5 degrees
above ambient
Specifications
AC Power Requirements 100-240V, 50/60Hz, 0.8A
DC Power Requirements
Rated Fan Voltage 12Vdc
Operating Voltage 8-12Vdc
Fan Mechanical SPECS
Fan Speed 2500 rpm
Max. Air Flow 27.99 m3/n
Max. Air Pressure 12.13 CmH2O
Operating Temperature 0° to 50°C
Dimensions 19˝ (W) x 4.2˝ (D) x 1.75˝ (H)
Weight 6.15 lbs.

3 high efficiency fans

21 16-Slot Mini-Mod / Demod Chassis : MLPS-16
16-Slot Mini-Mod / Demod Chassis : MLPS-16
Features
 Easy Access
 Weight : 6.6 lbs.
 Slide-In Modules
 Dimensions : 19" (L) x 7.5" (D) x 3.5" (H)
 High-Quality, Mini-modulator and/or Mini-demodulator headend system
 Compatible with power supplies (MPS-16) and those of other manufacturers
 Holds Up To 16 Single Slot Mini-Modulators and/or Mini-demodulators
 Holds Up To 12 Single Slot Mini-Modulators and/or Mini-demodulators with a power supply

28

PDT Catalog

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Similar to PDT Catalog

Similar to PDT Catalog (20)

PDT Catalog