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CA7P50E
Balanced UHF TV Combiners

This series of constant impedance UHF combiner modules is designed for multi-channel digital and/or analog TV combining applications. Modules are designed in sizes including 50E, 100E, 150E and 200E and available with 3 pole, 5 pole, 6 pole cross-coupled, 7 pole and 8 pole filters making them suitable for all low to medium power applications.

Balanced UHF TV combiners are ideal when optimum performance specifications are required. They are extremely compact, temperature stable and suitable for a wide range of applications.
 
Each balanced combiner module consists of two 3dB couplers, separated by two coaxial or bandpass filters. The filters are designed according to channel spacing and power rating.

The narrowband input corresponds to the bandpass resonant frequency, whereas the wideband input can be any other channel in the applicable TV band. Modules can be connected together to provide a multi-channel combiner with eight or more channels possible. Bandpass coaxial filters suit the following channel separations:
  • 3 pole: 3 channels or greater. For example channels 31 and 34
  • 5 pole: 2 channels or greater. For example channels 31 and 33
  • 6, 7 or 8 pole: adjacent channels. For example channels 31 and 32

FEATURES / BENEFITS

  • Compact design
  • Adjustable channel bandwidth
  • Tunable across full band
  • Inbuilt fine tuner to optimize wideband return loss on 50E models
  • Expandable for future services
  • Temperature stabilized
  • Optional wall mount for 50E models

Directional probe for forward/reflected power monitoring on 50E models.

Detailed electrical specifications and further information is available by opening the appropriate external document link below.


CA7P50E combiner module

Technical features


Structure

Product LineCombiner TV
Product TypeBand IV/V (UHF) TV Balanced Combiner
Filter TypeCoaxial

Electrical Specifications

Frequency RangeMHz470 - 820
Minimum Channel Spacingadjacent
Narrowband Input PowerkW0.4
Maximum Output PowerkW1.7
Impedance Ω50
Number of Poles7
Channel Bandwidth MHz6 to 8
MaskATSC 3 FCC, ETSI Non-Critical

Mechanical Specifications

Narrowband Input Connector7-16 DIN socket
Wideband Input Connector7-16 DIN socket
Weight kg (lb)15 (33)
Dimensions (Height or Length) cm (in)68.5 (26-31/32)
Dimensions (Width) cm (in)13.1 (5-5/32)
Dimensions (Depth) cm (in)30 (11-13/16)

Temperature Specifications

Maximum Operating Temperature °C (°F)80 (176)
Ambient Temperature Range °C (°F)-5 to 55 (23 to 131)
Maximum Temperature Rise °C (°F)40 (104)
Freq Drift - Tx Operation kHz/°C(°F)<2 (1.2)
Freq Drift - Ambient Temperature kHz/°C(°F)<2 (1.2)


Combiner Module Configuration


CA7P50E combiner module on rails


Multi-channel combiner and switch frame incorporating CA7P50E modules