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DPF 2/55...

10-Cavity Duplexer for the 160 MHz Band

DESCRIPTION

The DPF 2/55… is a 10-cavity duplex filter for duplex radio transcivers.

This duplexer is delivered in a low band version type DPF 2/55 L,

tunable within 138 - 156 MHz and a high band version type DPF 2/55 H,

tunable within 152 - 175 MHz. These models are again delivered in

submodels, each dedicated to work with a certain duplex spacing. See

“Ordering information” below.

The DPF 2/55… models are primarily intended for equipment, where the

TX and RX operate on several channels, i.e. within a certain port

bandwidth. In the last case, factory-tuning is recommended.

The filter has very small physical dimensions owing to the use of high-Q,

temperature compensated helical resonators.

The housing is made of extruded aluminium, the chassis of passivated

steel, and teflon insulation has been applied in the rigid coaxial cables

and in the connectors.

The filter is black vinyl-coated to prevent corrosion.

ORDERING DESIGNATIONS

TYPE PRODUCT NO. TUNING RANGE

(MHZ)

DUPLEX SPACING

(MHZ)

DPF 2/55 L-4/6-N 200002385 138 - 156 4 - 6

DPF 2/55 L-6/8-N 200002386 138 - 156 6 - 8

DPF 2/55 L-8/10-N 200002387 138 - 156 8 - 10

DPF 2/55 H-4/6-N 200002388 152 - 175 4 - 6

DPF 2/55 H-6/8-N 200002389 152 - 175 6 - 8

DPF 2/55 H-8/10-N 200002390 152 - 175 8 - 10

ORDERING INFORMATION

When ordering, please use the table above to select the appropriate

ordering designation for the desired filter type. If duplex TX and RX

frequencies are stated when ordering, the duplexers are delivered factory

adjusted. If TX and RX frequencies are not stated, the filters are delivered

non-adjusted.

Special configurations of this filter type may be quoted on request. For

instance, the filter can be delivered with other connector types or with flying

leads (RG 316 coaxial cable) terminated with connectors or for soldering-

connection.

SPECIFICATIONS

ELECTRICAL

MODEL DPF 2/55...

TX/RX FREQUENCY DPF 2/55 L : 138 - 156 MHz

DPF 2/55 H : 152 - 175 MHz

MAX. INPUT POWER 50 W

INSERTION LOSS TX-ANT AND ANT-RX

(at 4 MHz duplex spacing)

Multi-channel tuned, 3 MHz BW

Multi-channel tuned, 8 MHz BW

≤ 1,6 dB

≤ 1.6 dB

TX NOISE SUPPRESSION ON RX-FREQUENCY

Multi-channel tuned, 3 MHz BW

Multi-channel tuned, 8 MHz BW

> 85 dB (typ. 90)

> 70 dB

RX ISOLATION ON TX-FREQUENCY

Multi-channel tuned, 3 MHz BW

Multi-channel tuned, 8 MHz BW

> 85 dB (typ. 90)

> 70 dB

DUPLEX SPACING 4 - 10 MHz (adjustable)

IMPEDANCE Nom. 50 Ω

SWR ≤ 1.5

MECHANICAL

TEMP. RANGE –30° C → +60° C

FREQ. STABILITY Approx. 5 ppm/° C

CONNECTORS N-female

DIMENSIONS (L x W x H) 232 x 130 x 58 mm

WEIGHT Approx. 1325 g

TYPICAL RESPONSE CURVES @ 4 MHz DUPLEX SPACING & 3 MHz

TYPICAL RESPONSE CURVES @ 4 MHz DUPLEX SPACING & 8 MHz

PROCOM A/S reserve the right to amend specifications

without prior notice.

07/10/13

1 2

DPF 2/55 1

Inhaltsverzeichnis

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DPF 2/55...10-Cavity Duplexer for the 160 MHz BandDESCRIPTIONThe DPF 2/55… is a 10-cavity duplex filter for duplex radio transcivers.This duplexer is

Seite 2

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