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4PPX161E Series
Band IV/V (UHF) PeakPower+TM bandpass filter

The RFS 4PPX161E is designed for global filtering applications associated with DTV television transmission. It is a 4-pole filter incorporating one cross coupling to meet global mask requirements.  The filter is water cooled.

FEATURES / BENEFITS

  • Very compact for easy integration into equipment.
  • Very low insertion loss (lowest for this size).
  • Highest power rating for size/class.
  • Tunable over full UHF band (470 – 862 MHz).
  • Adjustable bandwidth, available for 6 & 8 MHz channels for global applications.
  • External, non-invasive coupling adjustment.
  • Tunable for ETSI, ISDB-T and ATSC applications.
  • -5 to 55 degree ambient temperature operation.
  • Water cooled.


Shows air cooled version

Technical features

General Specifications

Product LineFilters
Product TypeBand IV/V (UHF) TV Bandpass Filter
Model4PPX161E
Filter type4 pole with one cross coupling - 160mm ground plane spacing
Input / Output Connector3-1/8" EIA UF Female (standard) 1-5/8" EIA UF Female, NAX39D, NAX77D, WX39D (optional)

Mechanical Specifications

Dimension-WxDxH mm (in)353 x 434 x 268 (13.9 x 17.1 x 10.6)
ColorBlack
Weight kg (lb)25 (55)

Cooling

CoolingWater Cooled
Maximum Coolant Temp °C (°F)55 (131)
Flow Ratel/min3 ≤ rate ≤ 12 (1 ≤ rate 4 ≤ US gal.min)
Max. Propylene Glycol / Water Concentration %50

Specifications

Out-of-Band Emissions MaskISDB-TCombiner 6MHzCombiner 6MHzCombiner 8MHz
Channel Bandwidths MHz6668
Frequency RangeMHz470-710470-806470-806470-862
Insertion Loss at FcdB< 0.17 @ fc = 473 MHz
< 0.22 @ f c= 707 MHz		< 0.16 @ fc = 473 MHz
< 0.19 @ fc = 803 MHz		< 0.16 @ fc = 473 MHz
< 0.19 @ fc = 803 MHz		< 0.16 @ fc = 473 MHz
< 0.19 @ fc = 803 MHz
AttenuationdB< 0.42 @ fc ± 2.79 MHz
> 10 @ fc ± 4.0 MHz
> 15 @ fc ± 4.36-15 MHz		> 30 @ fc ± 9.0MHz
> 35 @ fc ± 15 MHz		> 30 @ fc ± 9.0MHz
> 35 @ fc ± 15 MHz		> 30 @ fc ± 12 MHz
> 35 @ fc ± 20 MHz
VSWR average across carriers< 1.15< 1.12< 1.12< 1.12
VSWR - maximum peak across carriers< 1.20< 1.18< 1.18< 1.18
Group Delay Variationns< 100 ± 2.79 MHz< 29 ± 2.69 MHz< 29 ± 2.69 MHz< 20 ± 3.8 MHz
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 OperationkHz/°C(°F)<2 (1.2)
Freq Drift - Ambient TemperaturekHz/°C(°F)<2 (1.2)


4PPX161E response


4PPX161E Sketch