Which bhi DSP Noise Cancelling In-Line Module is best for your radio?
When working with a receiver, scanner, marine radio, amateur radio, or communication receiver, background noise can significantly hinder speech intelligibility. The bhi DSP Noise Cancelling modules are specially designed to reduce interfering noise without affecting speech clarity.
All four models utilize the well-known bhi Digital Signal Processing (DSP) technology. This technology can reduce unwanted background noise by up to 40 dB, making weak or difficult-to-understand signals much clearer.
But which model is best suited for your application? In this comparison, we explain the differences.
What is a BHI DSP Noise Cancelling Module?
A bhi DSP module is placed between your radio and loudspeaker or headphones. The digital signal processor continuously analyzes the audio signal and recognizes speech. Disturbing background noises such as:
- Noise
- Static
- Engine noise
- Fans
- Hum
- Ambient noise
are automatically suppressed while speech is preserved.
All models feature:
- DSP noise reduction up to 40 dB
- 8 adjustable filter settings
- Automatic adaptation to changing noise conditions
- Very low latency of approximately 38 ms (Compact In-Line: 32 ms)
Comparison of the four bhi DSP models
BHI In-Line Module
The bhi In-Line Module is the ideal choice when you are looking for a simple yet powerful DSP solution.
Key features:
- Built-in 5 Watt audio amplifier
- Connection between radio and external loudspeaker
- Mono headphone jack
- Automatic audio bypass when the module is switched off
- Simple one-switch operation
- LED indication for power and DSP
This version is particularly suitable for fixed setups and base stations.
BHI Dual In-Line Module
The Dual In-Line Module is designed for users who want maximum connectivity options.
Advantages:
- Separate line input and line output
- Stereo headphone jack
- 7 Watt speaker output
- Simultaneous listening via speaker and headphones
- Support for two audio channels
- Separate volume control for input and output
This makes this model particularly suitable for amateur radio operators, monitoring stations, and professional applications.
BHI Compact In-Line Module
The Compact In-Line Module is the most portable model.
Strengths:
- Very compact size
- Operates on 2 AA batteries or external power
- More than 40 hours of battery life
- Suitable for line level and speaker level
- Ideal for use with stereo headphones
- Low power consumption
This version is popular with mobile users and amateur radio operators who work on the go.
BHI ParaPro EQ20-DSP
The ParaPro EQ20-DSP is the most comprehensive model in the bhi range.
In addition to the well-known DSP noise reduction, this version features:
- Powerful 20 Watt audio amplifier
- Parametric equalizer
- Adjustable audio profiles
- Clear LED display
- Bypass function
- Connections for headphones, active speakers, and external speakers
Thanks to the extensive equalizer, the sound can be fully adjusted to personal hearing preferences. This makes this model also very suitable for users with hearing loss.
| Feature | In-Line | Dual In-Line | Compact | EQ20-DSP |
|---|---|---|---|---|
| Mono speaker | ✔ | ✔ | ✔ | ✔ |
| Noise reduction | 8-40dB | 8-40dB | 8-40dB | 8-40dB |
| Stereo headphones | ✔ (mono) | ✔ | ✔ | ✔ |
| Line output | ✖ | ✔ | ✔ | ✖ |
| Battery power | ✖ | ✖ | ✔ | ✖ |
| Audio amplifier | 5 W | 7 W | 2 W | 20 W |
| Signal delay | 38ms | 38ms | 32ms | 38ms |
Which BHI DSP module do you choose?
The right choice mainly depends on your application.
Choose the In-Line Module if you:
- Are looking for a simple solution
- Use an external loudspeaker
- Mainly have a fixed radio setup
Choose the Dual In-Line if you:
- Want to listen to multiple audio channels
- Need many connection options
- Want to use both headphones and speaker simultaneously
Choose the Compact In-Line if you:
- Work on the go
- Value battery power
- Are looking for the smallest possible DSP module
Choose the ParaPro EQ20-DSP if you:
- Want maximum sound quality
- Are looking for extensive audio settings
- Want to adapt the sound to your hearing
- Want the most complete bhi solution
Frequently asked questions
What does a DSP Noise Cancelling module do?
A DSP module filters unwanted background noise from the audio signal, while speech is preserved as much as possible. This makes weak radio signals more intelligible.
Do all BHI models work with the same DSP technology?
Yes. All four models use bhi's proven DSP Noise Cancelling technology with up to 40 dB noise reduction and eight adjustable filter settings.
Which module is most suitable for mobile use?
The Compact In-Line Module is the best choice for mobile use thanks to its compact size and the ability to operate on AA batteries.
Which model offers the most adjustment options?
The ParaPro EQ20-DSP has the most features, including a parametric equalizer, extensive audio settings, and a powerful 20 Watt amplifier.
Conclusion
All BHI DSP Noise Cancelling modules significantly improve the intelligibility of radio signals by effectively reducing interfering background noise. Which version best suits you depends on your usage situation. Are you looking for simplicity, maximum connectivity, portability, or the most extensive audio processing? There is a suitable bhi solution for every application.
View the complete range of bhi DSP Noise Cancelling products on Deltron.nl or contact us for personal advice on the right module for your radio setup.
