Procom DPF 4-6-s-... - Manual

DPF 4/6 S-...
6-Resonator Duplexer for the 80 MHz Band
DESCRIPTION
The DPF 4/6 S-... is a 6-resonator duplex filter for duplex
radiotelephones.
This filter is primarily intended for equipment, where the TX and the RX
operate on single frequencies, but it can also, however with slightly
reduced data, be used 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 can be tuned within the complete 66 - 88 MHz range with a
duplex separation between 4 and 13 MHz.
The filter has very small dimensions owing to the use of high-Q,
temperature compensated helical resonators with discrete-component
interconnections.
The housing is made of extruded aluminium, the chassis of passivated
steel, and the connectors are provided with teflon insulation.
The filter is black vinyl-coated to prevent corrosion.
ORDERING DESIGNATIONS
TYPE PRODUCT NO. DUPLEX SPACING
(MHZ)
DPF 4/6 S-3/4 200000280 3 - 4
DPF 4/6 S-4/13 200000248 4 - 13
SPECIFICATIONS
ELECTRICAL
MODEL DPF 4/6 S-...
TX/RX FREQUENCY 66 - 88 MHz
MAX. INPUT POWER 50 W
INSERTION LOSS
TX-ANT AND ANT-RX
(at 4 MHz duplex spacing)
Single-channel tuned
Multi-channel tuned, 2 MHz BW
< 1.2 dB
< 1.3 dB
X NOISE SUPPRESSION ON
RX-FREQUENCY
Single-channel tuned
Multi-channel tuned, 2 MHz BW
> 80 dB
> 40 dB
X ISOLATION ON
TX-FREQUENCY
Single-channel tuned
Multi-channel tuned, 2 MHz BW
> 80 dB
> 40 dB
UPLEX SPACING 3 - 16 MHz (see table)
IMPEDANCE Nom. 50 Ω
SWR ≤ 1.4
MECHANICAL
TEMP. RANGE –30° C → +60° C
FREQ. STABILITY Approx. 9 ppm/° C
CONNECTORS BNC-female
DIMENSIONS (L x W x H) 170 x 154 x 33 mm
WEIGHT Approx 1050 g
TYPICAL RESPONSE CURVES @ 4 MHz DUPLEX SPACING
PLEASE NOTE
This filter type can also be delivered with the resonators stacked 3 over 3,
thereby accomodating special space restrictions. In this case please order
DPF 4/33 S.
PROCOM A/S reserve the right to amend specifications
without prior notice.
26/02/13