WR-LWA-0130 Long wire balun for medium wave and short wave 0.1-3
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WiNRADiO Communications

WiNRADiO WR-LWA-0130 Long Wire Adapter - match the impedance of a long wire HF antenna to a 50 ohm input

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Product code: WR-LWA-0130
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Item CostFinance OptionDepositMonthly PaymentsTotal Cost
£49.96
12 Months 14.9% APR
£5.00
£4.30
£56.66
£49.96
18 Months 14.9% APR
£5.00
£2.87
£56.66
£49.96
24 Months 14.9% APR
£5.00
£2.15
£56.66
£49.96
36 Months 14.9% APR
£5.00
£1.43
£56.66
£49.96
48 Months 14.9% APR
£5.00
£1.08
£56.66
£49.96
12 Months 19.5% APR
£5.00
£4.48
£58.72
£49.96
18 Months 19.5% APR
£5.00
£2.98
£58.72
£49.96
24 Months 19.5% APR
£5.00
£2.24
£58.72
£49.96
36 Months 19.5% APR
£5.00
£1.49
£58.72
£49.96
48 Months 19.5% APR
£5.00
£1.12
£58.72

Often referred to as Long Wire Balun, this device is used to match the impedance of a long wire HF antenna to a 50 ohm input impedance of a receiver.

Such impedance matching usually results in a significant signal strength increase (up to 17 dB in some cases, and approximately 5 dB on average), compared to the long wire antenna connected directly to the antenna input of the receiver.

The WiNRADiO WR-LWA-0130 Long Wire Antenna Adapter is designed to work on medium and short wave bands, covering a frequency range from 0.1 to 30 MHz. It is especially suitable for use with WiNRADiO shortwave receivers, such as the WR-G31DDC, WR-G303i, WR-G303e, WR-G313i and WR-G313e receivers.

Unlike most conventional antenna adapters, the WiNRADiO WR-LWA-0130 Long Wire Antenna Adapter employs a dual broadband transformer technique which offers an improved performance over single-transformer devices.

Technical Specifications
TypeDual-transformer passive impedance adapter
Frequency range100 kHz to 30 MHz
Impedance ratio1:9
ConnectorsBNC (receiver side)
M4 screw with winged nut (antenna side)
EnclosureDiecast aluminium
Size60 x 35 x 30 mm (2.3 x 1.4 x 1.2 in)
(excluding connectors)
Weight105 grams (3.8 oz)


Specifications are subject to change without notice due to continuous product development and improvement.

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