4 MHz BW @ 310 MHz
BPF 70/4-XL
Band-Pass Filter for the 350 MHz Band
Description
- The BPF 70/4-XL is a 4 resonator ¼ λ band-pass filter with inductive coupling between the resonators.
- This filter can be used as a preselector to protect a receiver from interference from transmitters outside the band-pass limits.
- When installed at the output of a transmitter, the BPF 70/4-XL reduces spurious signals.
- The BPF 70/4-XL is adjustable over the range 300 – 380 MHz.
- Careful choice of materials ensures reliable functioning over a wide temperature range.
- Extruded aluminium sections, steel racks, coax cables and connectors with teflon insulation ensure good mechanical strength.
- BPF 70/4-XL is coated with black vinyl to prevent corrosion.
- The filter is delivered in standard version with 4 MHz bandwidth, other bandwidths can be requested when ordering (up to 8 MHz)
Specification
| Electrical | |
| Model | BPF 70/4-XL |
|---|---|
| Filter Type | Band-pass filter |
| Frequency | 300 – 380 MHz |
| Max. Input Power | 50 W |
| Insertion Loss | < 1.5 dB |
| Impedance | 50 Ω |
| Reject Attenuation | See curves |
| VSWR | < 1.5:1 |
| Bandwidth | 4 – 8 MHz (Specify when ordering) |
| Environmental | |
| Operating temperature range | -30 °C to +60 °C |
|---|---|
| Mechanical | |
| Connection(s) | N(f) (BNC(f), TNC(f), UHF(f) or SMA(f) on request) |
|---|---|
| Historic Brand | Amphenol Procom |
| Dimensions | 243 (excl. conn.) x 104 x 33 mm / 9.57 x 4.09 x 1.3 in. |
| Weight | Approx. 0.69 kg / 1.52 lb. |
Ordering Codes
| Model | Product No. |
|---|---|
| Band-Pass Filter for the 350 MHz Band | 200000981 |
Additional Information
8 MHz BW @ 310 MHz
4 MHz BW @ 370 MHz
8 MHz BW @ 370 MHz
Mounting Details
All dimensions are given in mm [in.]
PROCOM A/S reserves the right to
amend specifications without prior notice
PROCOM A/S • Smedetoften 12
DK 3600 Frederikssund • Denmark
Generated : 2026-06-24
Version 1