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8PPXX322E Series
Band IV/V (UHF) PeakPower+TM 60kW bandpass filter

The RFS 8PPXX322E is designed for global filtering applications associated with DTV television transmission. It is an 8-pole fan-cooled filter incorporating two cross-couplings. The 8-pole filter allows for FCC tightening of emission mask for ATSC 3.

FEATURES / BENEFITS

  • Meets FCC Mask requirements plus extra protection for adjacent channels.
  • Very compact for easy integration into equipment.
  • Lowest insertion loss and highest power rating for its size/class.
  • Tunable over UHF band (470 – 638 MHz).
  • External coupling adjustment simplifies tuning.
  • All data presented based on measured results.


8PPXX322E Framed Forced Air-Cooled Filter Shown

Technical features

General Specifications

Product LineFilters
Product TypeBand IV/V (UHF) TV Bandpass Filter
Model8PPXX322E (Forced Air-Cooled)
Filter type8 Pole with 2 cross couplings - 325 mm ground plane spacing
Input / Output Connector6-1/8" EIA Flanged Female (Standard)

Electrical Specifications

ImpedanceΩ50

Mechanical Specifications

Weight kg (lb)260 (573)

Cooling

CoolingForced Air Cooled

Specifications

Out-of-Band Emissions MaskDVB-T ETSI criticalISDB-T criticalATSC 1.0 Note 1ATSC 3 Note 1
Channel Bandwidths MHz6
Input Power Rating, KWkW45 @ 473 MHz
50 @ 635 MHz		45 @ 473 MHz
50 @ 635 MHz		60 @ 473 MHz Note 2
60 @ 635 MHz Note 2		53 @ 473 MHz Note 2
60 @ 635 MHz Note 2
Insertion Loss at FcdB0.30.30.25 ± 0.020.25 ± 0.02
AttenuationdB<1.5 at Fc ± 2.85 MHz
>14 at Fc ± 3.15 MHz
>27 at Fc ± 4.5 MHz
>52 at Fc ± 9 MHz		<1.2 at Fc ± 2.79 MHz
>14 at Fc ± 3.15 MHz
>31 at Fc ± 4.5 MHz
>61 at Fc ± 9 MHz		<0.6 at Fc ± 2.69 MHz
<0.8 at Fc ± 2.915 MHz
>20 at Fc± 3.5 MHz
>20 at Fc ± 4 MHz
>40 at Fc ± 6 MHz
>65 at Fc ± 9 MHz		<0.6 at Fc ± 2.69 MHz
<0.8 at Fc ± 2.915 MHz
>20 at Fc± 3.5 MHz
>20 at Fc ± 4 MHz
>40 at Fc ± 6 MHz
>65 at Fc ± 9 MHz
VSWR average across carriers≤1.1
Return Loss Average Across CarriersdB≥26.4
Group Delay Variationns< 690 at Fc ± 2.85 MHz< 590 at Fc ± 2.79 MHz< 290 at Fc ± 2.69 MHz< 290 at Fc ± 2.69 MHz
Maximum Operating Temperature°C (°F)80 (176)
Ambient Temperature Range°C (°F)-5 to 55 (23 to 131) Note 2
Maximum Temperature Rise°C (°F)Δ40 (Δ72)
Freq Drift - Tx OperationkHz/°C(°F)<2 (1.2)
Freq Drift - Ambient TemperaturekHz/°C(°F)<2 (1.2)


8PPXX322E Plan view


8PPXX322E Side and Iso Views


Graph 1 - 8PPXX322/325E Typical Filter Response


Graph 2

Notes

  • Note 1. Other out-of-band emissions masks upon request
  • Note 2. Refer to Graph 2 for required environmental conditions (ambient temperature). Linear interpolation can be used to determine power rating at frequencies between 473MHz  and 635 MHz.