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.
Specification
| Electrical | |
| Model | DPF 70/22-250 |
|---|---|
| Frequency | 406 – 470 MHz |
| Max. Input Power | 300 W @ 1.5 dB |
| Insertion Loss | 250 kHz @ 1.5 dB 500 kHz @ 1.2 dB 1.0 MHz @ 1.0 dB |
| Tx Noise Suppression on Rx-Freq. / Rx Isolation on Tx-Freq. | 250 kHz @ 50 dB 500 kHz @ 60 dB 1.0 MHz @ 70 dB |
| Environmental | |
| Frequency Stability | Approx. 1.5 ppm / °C |
|---|---|
| Operating temperature range | -30 °C to +60 °C |
| Mechanical | |
| Connection(s) | N(f) |
|---|---|
| Historic Brand | Amphenol Procom |
| Dimensions | 510 x 515 x 300 mm / 20.07 x 20.27 x 11.81 in. |
| Weight | Approx. 15 kg / 33.07 lb. |
Ordering Codes
| Model | Product No. |
|---|---|
| Duplex Filter for the 450 MHz Band | 200000275 |
Diagrams
TYPICAL RESPONSE CURVES FOR 500 kHz DUPLEX SPACING
PROCOM A/S reserves the right to
amend specifications without prior notice
PROCOM A/S • Smedetoften 12
DK 3600 Frederikssund • Denmark
Generated : 2026-06-25
Version 1