DPF 70/…-125
Duplex Filters for the 450 MHz Band
Description
- High power base station duplex filters for the 400 – 475 MHz range.
- The use of large ø125 mm cavities means a high Q,
resulting in a very small duplex spacing. - The large dimensions also mean a high power rating.
- High frequency stability on temperature and power.
- Mounting brackets for 19” mounting included.
- Please specify the frequencies for Tx and Rx when ordering.
Specification
| Electrical | |
| Model |
DPF 70/22-125DPF 70/33-125
|
|---|---|
| Frequency |
400 – 470 MHz400 – 470 MHz
|
| Max. Input Power |
250 W @ 1 dB IL250 W @ 1.5 dB IL
|
| Min. Duplex Spacing |
0.5 MHz0.5 MHz
|
| Insertion Loss |
0.5 MHz < 2.5 dB
2 MHz < 2.0 dB0.5 MHz < 2.5 dB 2 MHz < 2.0 dB |
| Impedance |
50 Ω50 Ω
|
| Attenuation |
0.5 MHz > 45 dB
2 MHz > 60 dB0.5 MHz > 50 dB 2 MHz > 75 dB |
| VSWR |
< 1.5:1< 1.5:1
|
| Environmental | |
| Frequency Stability |
0.8 ppm/° C (approx.)0.8 ppm/° C (approx.)
|
|---|---|
| Operating temperature range |
-30°C to +60°C-30°C to +60°C
|
| Mechanical | |
| Connection(s) |
N(f)N(f)
|
|---|---|
| Historic Brand | Procom |
| Dimensions |
260 x 483 x 300(400) mm / 10.24 x 19.01 x 11.81 (15.75) in.260 x 483 x 300(400) mm / 10.24 x 19.01 x 11.81 (15.75) in.
|
| Weight |
Approx. 7 kg / 15.43 lb.Approx. 8.6 kg / 18.96 lb.
|
Ordering Codes
| Model | Product No. | Model |
|---|---|---|
|
DPF 70/22-125 |
200000271 | DPF 70/22-125 |
|
DPF 70/33-125 |
200000287 | DPF 70/33-125 |
|
DPF 70/44-125 |
200000435 | DPF 70/44-125 |
Diagrams
TYPICAL RESPONSE CURVES @ 2 MHz DUPLEX SPACING
TYPICAL RESPONSE CURVES @ 2 MHz DUPLEX SPACING
PROCOM A/S reserves the right to
amend specifications without prior notice
PROCOM A/S • Smedetoften 12
DK 3600 Frederikssund • Denmark
Generated : 2026-06-26
Version 1