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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
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
15/04/2025
05/03/2025
Super
28/02/2025
First class website and easy to navigate when buying items from Blake UK. Was emailed every step for reassurance regarding my on-line order for a stress free purchase. Will definitely be doing another on-line order from Blake UK regarding a TV ariel along with a loft bracket as I will be buying a loft Ariel in a few months time for my home. 💯% satisfied with my order 👍
25/02/2025
I’m pleased with the ærial overall. I did have to fix two separate issues though… 1. Many of the elements were bent, some quite badly. Happily they all bent straight again without any fatigue fracture. 2. Many of the elements were not seated properly in the booms. In one case, a vertical element was touching one on the other boom. I was able to pull the unseated ones out to seat better but I’m not sure how long they’ll stay like this.
11/02/2025
Amazingly quick de.ivery. Ordered at the weekend , arrived on Monday !
Google Company Reviews
10/05/2025
Blake UK provide an outstanding service. We recently moved into a new home and the existing TV signal reception was limited to a few flaky channels. I have never faced an issue like this before and wasn't sure if our smart TV, cabling or aerial were at fault. Rhys and the comprehensive information on the Blake UK website (including directional data for my nearest transmitter) resolved the problem very fast. A new and specific aerial, mast pole, clamps and instructions were efficiently dispatched and received the following day. I now have 844 channels! I should mention that during the installation the option to check signal strength and clarity on a Sony Bravia TV can be found in the 'Settings / Help / Signal Diagnostics' menu section.
05/05/2025
Good product, very reasonably priced and quick delivery.
22/04/2025
Ordered an aerial, 4 way distribution unit & loft fitting kit. Very impressed with the items. They look & feel good quality, everything you need is included even the fixing screws. Very easy to fit.
18/04/2025
Brilliant service, fast delivery and fast to reply to an email query. Couldn't be better, a nice company to deal with.
15/04/2025
good price, good delivery
Payment methods accepted
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I was looking for some roof hardware and found what I needed at Blake at a competitive price. I'm glad I bought through them because the transaction was simple and the delivery lightning fast. Received what I ordered on time and happy with the quality. So definitely will use them again.