Typical response curve
PRO-HDAR450-4DI-BB
Ultra Compact Broadband 4 ch. UHF450 Tx/Rx Combiner System for the PMR/LTE band 410-470 MHz
Description
- This integrated compact single tray combining solution is able to connect the Tx and Rx channels from 4 radio-repeaters into just one antenna.
- The combiner is standard tuned broad/wide-band up to a bandwidth of 5 MHz in the both transmit and receive band.
- It means the operator can at any time change channel frequencies in the concerned bands without any retuning of the combiner.
- The high performance Duplex Bandpass Filter isolates any noise interference on the receiving side, occuring from the transmitters themselves or unwanted high power signals from outside.
- Minimal 19″ rack space required – only 2HU (88.9 mm) See more in Mounting Details
- The very compact broadband 50 W PRO-HDAR450-4DI-BB can also be delivered in 2 or 3 channel 2HU versions. Please ask for availability.
Specification
| Electrical | |
| Model | PRO-HDAR450-BB-4DI |
|---|---|
| Frequency | 410 – 470 MHz |
| Max. Input Power | 50 W (per channel) |
| Max. Tx-Tx Spacing, Δ Tx | 5 MHz |
| Max. Rx-Rx Spacing, Δ Rx | 5 MHz |
| Insertion Loss Tx Path | < 9.5 dB |
| Impedance | 50 Ω |
| Duplex Spacing | 5 – 15 MHz |
| Ant-Tx Isolation | > 65 dB |
| Gain | 1 dB ±1 dB (Rx path, factory set) |
| Isolation Tx-Tx | > 80 dB |
| Isolation Tx – Rx | > 80 dB (Both ways) |
| Isolation Rx-Rx | > 20 dB |
| VSWR | ≤ 1.5:1 (Tx band) / ≤ 1.75:1 (Rx Band) |
| LNA Noise Figure | < 3.5 dB |
| Effective Noise Figure all outputs | < 5 dB |
| No. of channels | 4 |
| Mechanical | |
| Connection(s) | N(f) |
|---|---|
| Historic Brand | Amphenol Procom |
| Dimensions | 19″ x 2 HU 483 x 89.9 mm 19.02 x 3.54 in. – see drawing for depth of tray |
| Weight | 10.8 kg / 23.81 lb. |
Ordering Codes
| Model | Product No. | Frequency |
|---|---|---|
|
PRO-HDAR450-BB-4DI/410-425/5-5-5/50W |
220000721 | Low: 410 – 415 MHz / High: 420 – 425 MHz |
|
PRO-HDAR450-BB-4DI/415-430/5-5-5/50W |
220000722 | Low: 415 – 420 MHz / High: 425 – 430 MHz |
|
PRO-HDAR450-BB-4DI/420-435/5-5-5/50W |
220000723 | Low: 420 – 425 MHz / High: 430 – 435 MHz |
|
PRO-HDAR450-BB-4DI/425-440/5-5-5/50W |
220000724 | Low: 425 – 430 MHz / High: 435 – 440 MHz |
|
PRO-HDAR450-BB-4DI/430-445/5-5-5/50W |
220000725 | Low: 430 – 435 MHz / High: 440 – 445 MHz |
|
PRO-HDAR450-BB-4DI/435-450/5-5-5/50W |
220000726 | Low: 435 – 440 MHz / High: 445 – 450 MHz |
|
PRO-HDAR450-BB-4DI/440-455/5-5-5/50W |
220000727 | Low: 440 – 445 MHz / High: 450 – 455 MHz |
|
PRO-HDAR450-BB-4DI/445-460/5-5-5/50W |
220000728 | Low: 445 – 450 MHz / High: 455 – 460 MHz |
|
PRO-HDAR450-BB-4DI/450-465/5-5-5/50W |
220000694 | Low: 450 – 455 MHz / High: 460 – 465 MHz |
|
PRO-HDAR450-BB-4DI/455-470/5-5-5/50W |
220000729 | Low: 455 – 460 MHz / High: 465 – 470 MHz |
Additional Information
Block Diagram
Accessories
| Model | Product No. |
|---|---|
| Power Cable EU , with Ground | 210002646 |
| Power Cable UK , with Ground | 210002647 |
| Power Cable US , with Ground | 210002648 |
Note
Power cable is not included, must be ordered separately, see Accessories.
Mounting Details
All dimensions are given in mm [in.]
EU and UK Declaration of Conformity
Hereby Amphnol Procom declare that the product type PRO-HDAR450-BB-4DI is in compliance with EU Directive 2014/53/EU and the UK Radio Equipment Regulations 2017 (S.I. 2017 No. 1206).
The full text of the Declaration of Conformity is available at:
https://s3.us-west-2.amazonaws.com/catsy.1080/Declaration-of-Conformity-PRO-HDAR-BB-2HU.pdf
PROCOM A/S reserves the right to
amend specifications without prior notice
PROCOM A/S • Smedetoften 12
DK 3600 Frederikssund • Denmark
Generated : 2026-06-27
Version 1