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Variable Attenuator VHF/UHF, DC Blocked At Both Ports

Product Code: PROATT20V

  • For signal level reduction/adjustments
  • Low residual insertion loss
  • DC-blocked at both ports
  • Excellent flatness of frequency
£9.82 Inc VAT
Lifetime guarantee on internally installed products Includes technical support

Payment methods accepted

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Product Description

Attenuator VHF/UHF 20dB Variable/DC Blocked

A convenient variable attenuator which can be used with confidence wherever line-power is present. This compact unit is ideal for use on the inputs of distribution amplifiers and similar situations where signal level reduction and adjustment is required.

Features:

  • Covers the return path, VHF and UHF bands (5-862MHz).
  • DC-blocked at both ports - avoids burn-out when line-powered.
  • Low residual insertion loss.
  • Excellent flatness of frequency response across the full 20dB attenuation range.
  • Surface mountable and includes a removable plastic body that allows easy connector/adjuster access.
  • Tamper-resistant (access to the adjustment slot is recessed).

Technical Information:

Product Code
Frequency Range

Insertion

loss

Adjustment

range

Flatness

Connectors

PROATT20V

5 - 862MHz

<0.7dB

>20dB

<1dB

Type 'F

DC-blocking voltage rating: 24V max. (DC or 50Hz AC).
This attenuator is not power-passing and is not recommended for use in the satellite IF band.

Technical Specification

Width

20mm

Depth

35mm

Height

55mm

Weight

0.04kg

Anthony
03/10/2025

Exactly what I needed and delivered when said great team


01/10/2025

Delivered on-time without hitch.


25/09/2025

Excellent

Peter
23/09/2025

All good

Anthony
14/09/2025

Spot on with everything needed good

Google Company Reviews

George Eld
George Eld
20/10/2025

Good product and a fair price. A pleasure to deal with friendly company. After researching other products, and other companies, I settled for a suitable serial from Blakes. I have a history of studying aerials and worked in the TV trade some time ago, and the quality of their products impressed me.

Peter Wingrove
Peter Wingrove
19/10/2025

Aerial booster - robust construction- works well.

Trevor McMaster
Trevor McMaster
16/10/2025

Excellent

Peter Butterworth
Peter Butterworth
13/10/2025

Bought a FM 4 element aerial, both a very good product and great delivery!!

Tim Shaw
Tim Shaw
09/10/2025

Seamless and as described.

£9.82 Inc VAT
Lifetime guarantee on internally installed products Includes technical support

Payment methods accepted

Mastercard Visa AMEX PayPal Discover Apple Pay Google Pay