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BRF 4/...-200

Band-Reject Filters for the 80 MHz Band

DESCRIPTION

High power base station band-reject filters for the 66 – 88 MHz range.

The use of large ø200 mm cavities means a high Q, resulting

in a very narrow notch bandwidth.

The large dimensions also mean a high power rating.

Unloaded Q of a single cavity is approx. 7000.

High frequency stability on temperature and power.

19” mounting brackets are available as an option.

ORDERING DESIGNATIONS

TYPE PRODUCT NO.

BRF 4/1-200 200001920

BRF 4/2-200 200001921

BRF 4/3-200 200001922

SPECIFICATIONS

ELECTRICAL

MODEL BRF 4/1-200 BRF 4/2-200 BRF 4/3-200

FREQ. RANGE 66 - 88 MHz 66 - 88 MHz 66 - 88 MHz

MAX.INPUT

POWER

350 W @

0.5 dB IL

200 W @

1.0 dB IL

350 W @

1.0 dB IL

200 W @

2.0 dB IL

350 W @

1.5 dB IL

200 W @

3.0 dB IL

1 dB NOTCH

BANDWIDTH

1 ‰ of fc 1 ‰ of fc 1 ‰ of fc

IMPEDANCE Nom. 50 Ω Nom. 50 Ω Nom. 50 Ω

SWR ≤ 1.5 ≤ 1.5 ≤ 1.5

MECHANICAL

TEMP.RANGE

RH 0-90% non-

condensing

–30° C →

+60° C

–30° C →

+60°

–30° C →

+60° C

FREQ.

STABILITY

Approx. 1.5

ppm/° C

Approx. 1.5

ppm/° C

Approx. 1.5

ppm/° C

CONNECTORS N-female N-female N-female

DIMENSIONS ø200 x

1200 mm

L:200 x W:400 x

H:1200 mm

L:200 x W:600 x

H:1200 mm

WEIGHT Approx.

6.7 kg

Approx.

13.7 kg

Approx.

20.9 kg

PROCOM A/S reserve the right to amend specifications

without prior notice.

29/03/11

BRF 4/...-200 1

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BRF 4/...-200Band-Reject Filters for the 80 MHz BandDESCRIPTIONHigh power base station band-reject filters for the 66 – 88 MHz range.The use of large

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