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6PPXX270E Filter
Band IV/V (UHF) PeakPower+TM 13kW bandpass filter

The RFS model 6PPXX270E is a high powered, natural air cooled bandpass filter designed for mask filtering of digital television transmitters. It is a six pole filter with dual cross couplings to increase the filter selectivity and lower the insertion loss. A water cooled option is also available.

FEATURES / BENEFITS

  • Tunable over 470 – 704 MHz to allow for future channel changes
  • External coupling adjustments for easy field re-tuning
  • Adjustable bandwidth makes it suitable for ATSC, ETSI non-critical or ISDB-T critical mask filtering
  • Natural air cooling ensures high power rating (15 kW nominal) in a compact size for easy installation
  • Highest Q filter design for best performance for the size / class of filter
  • -5 to 55 degrees ambient temperature operation
  • All data presented based on measured results


6PPXX270E Filter shown with water-cooling

Technical features

General Specifications

Product LineFilters
Product TypeBand IV/V (UHF) TV Bandpass Filter
Model6PPXX270E
Filter type6 Pole with dual cross coupling - 270 mm ground plane spacing
Input / Output Connector4-1/2" IEC Unflanged Female (Standard), 3-1/8" EIA Unflanged Female, MYAT (Optional)
4-7/8" IEC Unflanged Female (Optional), 6-1/8" EIA Flanged Female (Optional)

Electrical Specifications

ImpedanceΩ50

Mechanical Specifications

Weight kg (lb)106 (234)

Cooling

CoolingNatural air

Specifications

Out-of-Band Emissions MaskDVB-T ETSI non-criticalISDB-T CriticalATSC 1.0/ ATSC 3.0
Channel Bandwidths MHz866
Frequency RangeMHz474-698473-701473-701
Input Power RatingkW14.9 @ 474MHz
13.9 @ 586MHz
14.9 @ 698MHz
10.9 @ 473MHz
9.4 @ 587MHz
10.9 @ 701MHz
12.9 @ 473MHz
11.4 @ 587MHz
12.9 @ 701MHz
Insertion Loss at fcdB<0.19 @ 474MHz
<0.21 @ 586MHz
<0.19 @ 698MHz
<0.27 @ 473MHz
<0.30 @ 587MHz
<0.27 @ 701MHz
<0.26 @ 473MHz
<0.28 @ 587MHz
<0.26 @ 701MHz
AttenuationdB<0.65 ± 3.8MHz
>4.2 ± 4.2MHz
>26 ± 6MHz
>41 ± 12MHz
<1.1 ± 2.79MHz
>11 ± 3.15MHz
>26 ± 4.5MHz
>53 ± 9MHz
<0.5 ± 2.69MHz
<0.6 ± 2.915MHz
>3 ± 3.5MHz
>40 ± 6MHz
>65 ± 9MHz
Note 1
VSWR average across carriers<1.12<1.2<1.1
Return Loss Average Across CarriersdB>25>20.8>26.4
Group Delay Variationns<295 (fc ± 3.8 MHz)<585 (fc ± 2.79 MHz)<150 (fc ± 2.69 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)


6PPXX270 Response


6PPXX270E Filter Views

Notes

Note 1 TX intermod shoulders 37 dB