Vision 4-Way 20dB Variable Gain - High Energy Masthead Amplifier Ch21-60 + PSU
Vision 4-Way 20dB Variable Gain - High Energy Masthead Amplifier Ch21-60 + PSU
Ultra low noise figure down to 1.4dB & super flat gain response ±0.5dB. Low power consumption, 5V to 12V DC working. Fully screened with gold F-connectors for superior connectivity. SMD technology with compartmentalised screening for high performance. Accepts “type 125” coaxial cables and connectors for extra long cable runs. High quality ventilated weatherproof PE housing (IP53 rated). Designed and built in the UK. Masthead amplifier and PSU kits available.
Technical Specification
Model: V20-4260
Input Frequency: 470-790MHz
No of Inputs: 1
No of Outputs: 4
Gain: 20dB (8-20dB)
Gain Flatness: ±0.5dB
Interstage Level Adjustment: 0-12dB
Maximum Output Level*: 106dBμV
Maximum Input Level**: 98dBμV
Noise Figure: 1.4dB
Filter Rejection: 400MHz -42dB / 820MHz -30dB
DC Power: 5V to 12V
Power Consumption: 77mA
Connector: Gold plated F-female
Fixing: Nylon-tie up to 60mm masts / or bulkhead screw fixing
Internal module: Pressed fully screened compartmentalised electronics module
Housing: Ventilated ABS weatherproof moulding IP53 rated
Dimension / Packed Weight: 100mm x 84mm x 56mm / 154g
DC PSU when purchased as a kit: V23-2102 / V23-2110 12V 100mA with short circuit and overload protection
When amplifying weak digital signals, amplifier noise figure (N/F) is critical. The noise of the amplifier will be added to the noise of the incoming weak signal. The lower the amplifier Noise Figure, the weaker the digital signal that can be reliably amplified. So these very low noise amplifiers will work where others fail. Vision designed these amplifiers using the latest semiconductors and SMD technology for industry leading low noise figures and reliability.
Avoiding 4G-800 LTE interference when using a masthead amplifier:
1: Choose the right model for your local transmitter
2: For channels 21-56 use only V20-1356 or V20-2756, The extra filtering above channel 56 will reduce 4G-800 signal levels to a manageable level. Use the minimum gain required for stable reception.
3: Where a TV transmitter uses a range channels up to Ch60 in close proximity to the 4G800 transmission frequencies, we recommend using a high energy amplifier. This allows weak channels to be amplified before filtering the 4G-800LTE. The high energy capability will cope with high levels of 4G-800 LTE without overload.
Delivery Information
FREE Mainland UK Economy delivery (2 - 5 days) on orders over £150.
FREE Mainland UK Standard delivery (1 - 3 days) on orders over £300.
Mainland UK Economy Delivery (2 - 5 days) from £3.80
Mainland UK Standard Delivery (1 - 3 Days) from £4.50
Next Day Delivery from £8.95
International Delivery
Returns Information
Any unwanted products can be returned within 28 days of delivery.
To arrange a return please contact our customer service team on 0191 487 1292 or email websales@trade-works.co.uk. Please ensure that you provide your order number.
Our customer service team will provide you with a returns number and a returns form which must be completed.
For more information on Delivery & Returns please click here.
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