BPF 70/4-HX-C
Band-Pass Filter for the 450 MHz Band
Description
- The BPF 70/4-HX-C is a 4 helical resonator band-pass filter with aperture 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.
- The BPF 70/4-HX-C (C = cable RG316) can be installed directly into the PRO-AR4G-N, PRO-AR8G-N and PRO-AR16G-N receiver multicouplers as a preselector.
- When installed in the output of a transmitter, the BPF 70/4-HX-C reduces spurious signals.
- The BPF 70/4-HX-C is adjustable over the range 380 – 470 MHz.
- Very compact due to use of helical resonators.
- The careful choice of materials, ensures the filter will function reliably over a wide temperature range.
- Extruded aluminium sections, steel racks and coax cables for PCB mount with teflon insulation ensure good mechanical strength.
- The filter is coated with black vinyl to prevent corrosion.
Specification
| Electrical | |
| Model | BPF 70/4-HX-C |
|---|---|
| Filter Type | Band-pass filter |
| Frequency | L: 380 – 440 MHz H: 430 – 470 MHz |
| Max. Input Power | 35 W |
| Insertion Loss | ≤ 1.5 typ. 1.2 dB |
| Impedance | 50 Ω |
| Reject Attenuation | See curves |
| VSWR | < 1.5:1 |
| Bandwidth | Min. 3 MHz |
| Environmental | |
| Operating temperature range | -30 °C to +60 °C |
|---|---|
| Mechanical | |
| Connection(s) | Cable for PCB mount |
|---|---|
| Historic Brand | Amphenol Procom |
| Dimensions | 71.5 x 104 x 33 mm / 2.82 x 4.10 x 1.30 in. |
| Weight | Approx. 0.43 kg / 0.95 lb. |
Ordering Codes
| Model | Product No. | Frequency |
|---|---|---|
|
BPF 70/4-HX/l-C |
200000876 | 380 – 440 MHz |
|
BPF 70/4-HX/h-C |
200000914 | 430 – 470 MHz |
Diagrams
TYPICAL RESPONSE CURVE
MOUNTING DETAILS
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