Magnetic balun for outside use with wire antennas MTFT-EXT-11370-01.-3
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ZX Antennas

Magnetic balun for outside use with wire antennas MTFT-EXT-11370-01.

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£79.96
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Product code: 11370-01
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Item CostFinance OptionDepositMonthly PaymentsTotal Cost
£79.96
12 Months 14.9% APR
£8.00
£6.89
£90.68
£79.96
18 Months 14.9% APR
£8.00
£4.59
£90.68
£79.96
24 Months 14.9% APR
£8.00
£3.45
£90.68
£79.96
36 Months 14.9% APR
£8.00
£2.30
£90.68
£79.96
48 Months 14.9% APR
£8.00
£1.72
£90.68
£79.96
12 Months 19.5% APR
£8.00
£7.17
£93.99
£79.96
18 Months 19.5% APR
£8.00
£4.78
£93.99
£79.96
24 Months 19.5% APR
£8.00
£3.58
£93.99
£79.96
36 Months 19.5% APR
£8.00
£2.39
£93.99
£79.96
48 Months 19.5% APR
£8.00
£1.79
£93.99

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Magnetic balun for outside use with wire antennas MTFT-EXT-11370-01.-3

Magnetic balun for outside use with wire antennas MTFT-EXT-11370-01.


The MTFT is a resistance transformer with a ratio of 1:9, designed to reduce the high impedance of a short wire to a level that can be matched with a regular tuner. By connecting the balun directly to the antenna wire and then using coax to link it to the tuner, the SWR on the line remains below 3:1 with minimal losses from resonant waves. Ground connection is recommended for optimal performance, attaching it to the PL connector's ground instead of the insulated case.

One successful setup involved a 20m long windom antenna fed with the MTFT, resulting in a SWR better than 1.5:1 across all amateur bands without the need for a tuner. The MTFT can be utilized not only with wires but also with various metallic objects like water pipes or CB antennas, making it a versatile tool for experimental radio amateurs. It can handle a maximum power load of 100W PEP and is suitable for both transmission and reception purposes.

For shortwave listeners, the MTFT is an excellent accessory for improving the efficiency of simple wire setups connected to world-band receivers. This model is not weatherproof, so it is advisable to use additional coverings when deploying it outdoors to ensure longevity and performance in different conditions.

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