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Procom DPF 2-44... User Manual

Dpf 2/44

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DPF 2/44...

8-Cavity Duplexer for the 160 MHz Band

DESCRIPTION

The DPF 2/44… is a 8-cavity duplex filter for duplex radio transceivers.
This duplexer is delivered in a low band version type DPF 2/44 L,

tunable within 138 - 156 MHz and a high band version type DPF 2/44 H,

tunable within 152 - 175 MHz. These models are again delivered in 3

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

“Ordering information” below.
The DPF 2/44… models are primarily intended for equipment, where the

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

bandwidth.
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 2/44 L-4/6-N

200002379

138 - 156

4 - 6

DPF 2/44 L-6/8-N

200002380

138 - 156

6 - 8

DPF 2/44 L-8/10-N

200002381

138 - 156

8 - 10

DPF 2/44 H-4/6-N

200002382

152 - 175

4 - 6

DPF 2/44 H-6/8-N

200002383

152 - 175

6 - 8

DPF 2/44 H-8/10-N

200002384

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 2/44...

TX/RX FREQUENCY

DPF 2/44 L : 138 - 156 MHz

DPF 2/44 H : 152 - 175 MHz

MAX. INPUT POWER

50 W

INSERTION LOSS TX-ANT AND ANT-RX
(at 4 MHz duplex spacing)
Multi-channel tuned, 1.5 MHz BW
Multi-channel tuned, 5 MHz BW



≤ 1.4 dB (typ. 1.2 dB)
≤ 1.4 dB (typ. 1.2 dB)

TX NOISE SUPPRESSION ON RX-FREQUENCY
Multi-channel tuned, 1.5 MHz BW
Multi-channel tuned, 5 MHz BW


> 90 dB
> 65 dB

RX ISOLATION ON TX-FREQUENCY
Multi-channel tuned, 1.5 MHz BW
Multi-channel tuned, 5 MHz BW


> 90 dB
> 65 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) With connector

215 x 105 x 54 mm

WEIGHT

Approx. 1100 g

TYPICAL RESPONSE CURVES @ 4 MHz DUPLEX SPACING & 1,5 BW

TYPICAL RESPONSE CURVES @ 4 MHz DUPLEX SPACING & 5 BW

PROCOM A/S reserve the right to amend specifications

without prior notice.
07/10/13