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2-Way Variable Gain UHF Masthead Amplifier With Power Supply
Product Code: BLAMHD12V-PS
- 90 Degree Wide opening door
- Power LED on amplifier
- Foam seal cable entry glands
- Low noise linear power supply
- F-Type connectors
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Product Description
RED Class 1, Blake 2-Way Variable Gain 5-20dB Masthead Amplifier (470-694MHz) & Power Supply Kit
Triple Filtered Reception for Optimal Performance:
4G, 5G, and TETRA Compatibility
Elevate your reception quality with the RED Class 1, Blake 2-Way Variable Gain 5-20dB Masthead Amplifier. This CE/UKCA compliant amplifier kit offers exceptional performance, incorporating advanced 5G/4G LTE filtering and amplification for TV frequencies within the 21-48 band (470-694MHz). With its variable 5-20dB gain and low noise figures (<2.5dB typical), it ensures optimal signal strength and clarity. The amplifier features F-type connectors on both inputs and outputs for easy connectivity.
Designed to reduce interference from 5G/4G LTE signals, the amplifier exhibits excellent filter characteristics with >30dB suppression for frequencies below 400MHz. It is also compliant with Class 1 EN 303 354 standards for effective filtering of 5G frequencies. Additionally, the amplifier filters TETRA signals below 470MHz.
The amplifier's thoughtfully engineered design allows for convenient access. The case opens to a full 90 degrees, providing easy access to the F connectors, while the shielded amplifier casing swings out to 45 degrees. The casing includes an LED indicator to confirm power reception.
With a robust and water-resistant construction, the amplifier features seal-protected cable entry points to prevent moisture and insects from compromising its performance. The case securely closes with a satisfying "solid click" and includes an optional security screw for added protection.
Designed for linearity, the amplifier effectively handles strong local signals without compromising performance. It comes with a low-noise linear power supply rated at 100mA to ensure optimal signal quality. The power supply features a dual-colored LED for advanced short circuit protection, transitioning from green (normal) to red (short). It also offers infinite short circuit protection to prevent damage to the unit.
Installer-Friendly Design:
- 90° Wide Opening Door for easy access.
- Optional Securing Screw for added stability.
- Heavy-Duty UV Stabilized Cable Tie for secure installation.
- Dual LED Indicators for advanced short circuit protection.
- Foam Seal Cable Entry Glands to safeguard against external elements.
- Power LED on Amplifier for visual confirmation of power status.
- 45° Swivel and Click Amp for flexible positioning.
- Robust Wall Mountable Lugs for secure installation.
- Available in 2 or 4 outputs for diverse setup requirements.
- Low Noise Figures <2.2dB for superior signal quality.
- F-Type Connectors for reliable connections.
- Equipotential Bonding Point/Earthing Tag for safety compliance.
Early Feedback from Installers:
"The quality is superb – you can tell that immediately from the robust housing."
"I’d say it’s a nicely designed product with some neat features like foam seal cable entry – you’ve clearly been listening to installers."
"Great to finally have a masthead that I can fit compression connectors into. Nice work."
This is just the beginning of our expanding product range, stay tuned for more innovative solutions.
Technical Specification
IEC or F Type
F-Type
Number of Outputs
2
Number of Inputs
1
Low, Medium or High
Variable
Internal or External
External
Amplifier Includes Power Supply Unit (PSU)
Yes
Amplifier Includes Full Output
No
RED Class 0 or Class 1
Class 1
In Line or Plug In
In-Line
Lifetime Guarantee
5-years
Width
127mm
Depth
54mm
Height
210mm
Weight
0.57kg
Product Comparison
Number of Outputs
4
1
2
4
2
4
4
Low, Medium or High
Variable
High (27dB)
Variable
Variable
Variable
Variable
Variable
Amplifier Includes Power Supply Unit (PSU)
No
No
No
No
Yes
Yes
Yes
03/10/2025
01/10/2025
Delivered on-time without hitch.
25/09/2025
Excellent
23/09/2025
All good
14/09/2025
Spot on with everything needed good
Google Company Reviews
27/09/2025
Websit easy navigation well laid out categories, swift check out. Fast delivery upto dates on order process Product installed and works as advertised value for money More than pleased, buy with confidence, and No I am not a family member
19/09/2025
Fast delivery and very good quality products
25/08/2025
Very good quality aerial, well packed and fast shipping. All received OK, many thanks.
14/08/2025
09/08/2025
I ordered a 1 in 2 out Hdmi switch but it was out of stock and rather than getting me to wait until it was in stock Blake UK sent a more expensive 1 in 4 out Hdmi switch at no extra charge. It was also delivered very quickly. I would there rate Blake UK ver highly - hence the 5 stars.
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Exactly what I needed and delivered when said great team