| 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.
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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.
Installation
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The adapter is connected to the receiver via a BNC connector and a suitable low-loss coaxial cable.
For outdoor installation we recommend the use of Coax Sealapplied over the BNC connector, for additional weather-proof protection.
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Strip the end of the antenna lead-in wire and tighten it under the winged nut. Connect the Long Wire Adapter to the receiver using a coaxial cable with a BNC connector.
| Technical Specifications |
| Type |
Dual-transformer passive impedance adapter |
| Frequency range |
100 kHz to 30 MHz |
| Impedance ratio |
1:9 |
| Connectors |
BNC (receiver side)
M4 screw with winged nut (antenna side) |
| Enclosure |
Diecast aluminium |
| Size |
60 x 35 x 30 mm (2.3 x 1.4 x 1.2 in)
(excluding connectors) |
| Weight |
105 grams (3.8 oz) |
Specifications are subject to change without notice due to continuous product development and improvement.
