Manual

DPF 70/22-250
Duplex Filter for the 450 MHz Band
DESCRIPTION
High power base station duplex filter for the 400 – 470 MHz range.
The use of large ø250 mm cavities means a high Q,
resulting in a small duplex spacing.
The large dimensions also mean a high power rating.
Unloaded Q of a single cavity is approx. 8000.
High frequency stability on temperature and power.
Mounted on 19” brackets.
ORDERING DESIGNATIONS
TYPE PRODUCT NO.
DPF 70/22-250 200000275
SPECIFICATIONS
ELECTRICAL
MODEL DPF 70/22-250
TX/RX FREQUENCY 406 - 470 MHz
MAX. INPUT POWER 300 W @ 1.5 dB
TYP. INSERTION LOSS 250 kHz @ 1.5 dB
500 kHz @ 1.2 dB
1.0 MHz @ 1.0 dB
TX NOISE SUPPRESSION ON RX FREQ.
AND RX ISOLATION ON TX FREQ.
250 kHz @ 50 dB
500 kHz @ 60 dB
1.0 MHz @ 70 dB
MECHANICAL
TEMP. RANGE –30° C → +60° C
FREQ. STABILITY Approx. 1.5 ppm/° C
CONNECTORS N-female
DIMENSIONS (L x W x H) 510 x 515 x 300 mm
WEIGHT Approx. 15 kg
TYPICAL RESPONSE CURVES FOR 500 kHz DUPLEX SPACING
PROCOM A/S reserve the right to amend specifications
without prior notice.
01/02/13