Manual
MPX 70/6…
6-Resonator Mini-Duplexer for the 450 MHz Band
DESCRIPTION
The MPX 70/6… is a 6-resonator miniaturized duplex filter for duplex
radiotelephones. This compact “miniplexer” meets the demand for a
modern, space saving, high performance filter type.
The duplexer is delivered in a low band version: MPX 70/6 L, tunable
within the 406 - 440 MHz range, and a high band version: MPX 70/6 H,
which is tunable within the 430 - 470 MHz range. These models are
again delivered in 4 different versions according to required duplex
spacing. See also “Ordering information” below.
The MPX 70/6… models are primarily intended for equipment, where the
TX and RX operate on single frequencies, but they 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 miniaturization of the filter has been realized by using special high-
Q, temperature compensated helical resonators.
The housing is made of extruded aluminium, the chassis of 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 DESIGNATION
TYPE PRODUCT NO. TUNING RANGE
(MHZ)
DUPLEX SPACING
(MHZ)
MPX 70/6L-5/7 200000580 406 - 440 5 - 7
MPX 70/6L-7/9 200000585 7 - 9
MPX 70/6L-9/13 200000594 9 - 13
MPX 70/6L-13/16 200000577 13 - 16
MPX 70/6H-5/7 200000554 430 - 470 5 - 7
MPX 70/6H-7/9 200000560 7 - 9
MPX 70/6H-9/13 200000568 9 - 13
MPX 70/6H-13/16 200000550 13 - 16
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.
SPECIFICATIONS
ELECTRICAL
MODEL MPX 70/6...
TX/RX FREQUENCY MPX 70/6 L: 406 - 440 MHz
MPX 70/6 H: 430 - 470 MHz
MAX. INPUT POWER 50 W
INSERTION LOSS TX-ANT AND ANT-RX
(at 10 MHz duplex spacing)
Single-channel tuned:
Multi-channel tuned,1.5 MHz BW:
< 1.4 dB
< 1.5 dB
TX NOISE SUPPRESSION
ON RX-FREQUENCY
Single-channel tuned:
Multi-channel tuned, 1.5 MHz BW:
> 90 dB
> 60 dB
RX ISOLATION ON TX-FREQUENCY
Single-channel tuned:
Multi-channel tuned, 1.5 MHz BW:
> 90 dB
> 60 dB
DUPLEX SPACING 5 - 13 MHz (see tabel)
IMPEDANCE Nom. 50 Ω
SWR ≤ 1.4
MECHANICAL
TEMP. RANGE –30° C → +60° C
CONNECTORS BNC-female
DIMENSIONS (L x W x H) 110 x 154 x 33 mm
WEIGHT Approx. 550 g
TYPICAL RESPONSE CURVES @ 10 MHz DUPLEX SPACING
PROCOM A/S reserve the right to amend specifications
without prior notice.
04/12/13