MFJ-17758 80/40 Meter Dipole Antenna
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MFJ-17758 80/40 Meter Dipole Antenna

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£99.95
(£83.29 exc. VAT)
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Product code: MFJ-17758
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Item CostFinance OptionDepositMonthly PaymentsTotal Cost
£99.95
12 Months 14.9% APR
£9.99
£8.61
£113.35
£99.95
18 Months 14.9% APR
£9.99
£5.74
£113.35
£99.95
24 Months 14.9% APR
£9.99
£4.31
£113.35
£99.95
36 Months 14.9% APR
£9.99
£2.87
£113.35
£99.95
48 Months 14.9% APR
£9.99
£2.15
£113.35
£99.95
12 Months 19.5% APR
£9.99
£8.96
£117.49
£99.95
18 Months 19.5% APR
£9.99
£5.97
£117.49
£99.95
24 Months 19.5% APR
£9.99
£4.48
£117.49
£99.95
36 Months 19.5% APR
£9.99
£2.99
£117.49
£99.95
48 Months 19.5% APR
£9.99
£2.24
£117.49

The MFJ-17758 is a two band, 80- and 40-Meter center-fed dipole antenna capable of handling 1500 watts. Its total length is 85 feet. Each side of the dipole is broken up by a coil that presents a high impedance at 40 meters and acts as a loading coil on 80 meters, allowing the antenna to resonate on 80 meters even though it is physically shorter than a half-wavelength (approximately 130 feet at 3.7 MHz).

Because this antenna acts as a dipole on both bands its impedance is around 50 to 70 ohms, permitting it to be fed with coaxial cable. The use of a current balun between the coaxial feedline and the antenna is highly recommended, to help prevent stray RF from traveling down the coaxial cable?s outer shield. This is easily accomplished with an MFJ-915 RF Isolator and a ?double male? coaxial connector (MFJ-7702).