BRF 4/…-200
Band-Reject Filters for the 80 MHz Band
Description
- High power base station band-reject filters for the 66 – 88 MHz range.
- The use of large ø200 mm cavities means a high Q, resulting in a very narrow notch bandwidth.
- The large dimensions also mean a high power rating.
- Unloaded Q of a single cavity is approx. 7000.
- High frequency stability on temperature and power.
- 19” mounting brackets are available as an option.
Specification
| Electrical | |
| Model |
BRF 4/1-200BRF 4/2-200BRF 4/3-200
|
|---|---|
| Frequency | 66 – 88 MHz |
| Max. Input Power |
350 W @ 0.5 dB IL
200 W @ 1.0 dB IL350 W @ 1.0 dB IL 200 W @ 2.0 dB IL350 W @ 1.5 dB IL 200 W @ 3.0 dB IL |
| 1 dB Notch Bandwidth | 1 % of fc |
| Impedance | 50 Ω |
| VSWR | ≤ 1.5:1 |
| Environmental | |
| Frequency Stability | 1.5 ppm/° C (approx.) |
|---|---|
| Operating temperature range | -30 °C to +60 °C- |
| Mechanical | |
| Connection(s) | N(f) |
|---|---|
| Historic Brand | Procom |
| Dimensions |
ø200 x 1200 mm / ø7.87 x 47.24 in.L:200 x W:400 x H:1200 mm / L:7.87 x W:15.74 x H:47.74 in.L:200 x W:600 x H:1200 mm / L:7.87 x W:23.62 x H:47.74 in.
|
| Weight |
Approx. 6.7 kg / 14.77 lb.Approx. 13.7 kg / 30.20 lb.Approx. 20.9 kg / 46.08 lb.
|
Ordering Codes
| Model | Product No. | Max. Input Power |
|---|---|---|
|
BRF 4/1-200 |
200001920 | 350 W @ 0.5 dB IL 200 W @ 1.0 dB IL |
|
BRF 4/2-200 |
200001921 | 350 W @ 1.0 dB IL 200 W @ 2.0 dB IL |
|
BRF 4/3-200 |
200001922 | 350 W @ 1.5 dB IL 200 W @ 3.0 dB IL |
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