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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
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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
14/08/2026
10/08/2026
Have to move the TV Ariel, and I found everything I needed in one place at a good price. Prompt delivery of items that are not commonly available. Highly recommend.
05/08/2026
No problems.
25/07/2026
Timely dispatch and tracking available. Reasonable prices too.
15/07/2026
Excellent! Great range of products. Website very easy to use. Fast dispatch. Extremely good communications. Thank you.
Google Company Reviews
10/08/2026
04/08/2026
03/08/2026
All received no issues
30/07/2026
Very courteous and helpful in dealing with my order error. A decent antenna delivered very quickly and I now have fm radio with a full strength signal.
25/07/2026
I had a bit of a struggle with their online ordering, I managed to raise an order as "collection" rather than delivery by courier. However Blake's went out of their way to fix the problem. Otherwise their on-line service produces a good transaction trail.
Payment methods accepted
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Good product, reasonable delivery time