New
Looper Systems MLA-T PRO Top Band QRP Magnetic Loop Antenna 1
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Radioworld uk

Looper Systems MLA-T PRO v.4 new version - A low-power balcony antenna for 160-m, 80-m, 60-m and 40-m band Magnetic loop antenna.

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£899.00
(£749.17 exc. VAT)
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Product code: MLA-T
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Item CostFinance OptionDepositMonthly PaymentsTotal Cost
£899.00
12 Months 14.9% APR
£89.90
£77.47
£1,019.56
£899.00
18 Months 14.9% APR
£89.90
£51.65
£1,019.56
£899.00
24 Months 14.9% APR
£89.90
£38.74
£1,019.56
£899.00
36 Months 14.9% APR
£89.90
£25.82
£1,019.56
£899.00
48 Months 14.9% APR
£89.90
£19.37
£1,019.56
£899.00
12 Months 19.5% APR
£89.90
£80.57
£1,056.78
£899.00
18 Months 19.5% APR
£89.90
£53.72
£1,056.78
£899.00
24 Months 19.5% APR
£89.90
£40.29
£1,056.78
£899.00
36 Months 19.5% APR
£89.90
£26.86
£1,056.78
£899.00
48 Months 19.5% APR
£89.90
£20.14
£1,056.78

Description,

On 160m band 3S loss against dipole in several tens of meters high needs to be expected while this loss has a strong dependence on polarization of the received signal. Operation on 40m bands is possible by shorting of the loop by mechanical jumper which is included. The robust design of 4 loops MLA provides relatively good efficiency even with the extremely small diameter of the antenna. The antenna is serving satisfactory results mainly on 40m, 60m, and 80m bands while 160m is a compromise between minimal dimensions of antenna and physical attainable effect. Band switching is not designed to remote control so MLA-T is not an ideal solution for static base antennas. In its price category, MLA-T extends the commercial magnetic loop antenna range designed to two top HAM bands.

Remote tunning of the manually switched band is done by DC motor with integrated transmission 1:600 and pulse speed control. Each start of the motor is slowed down by 3 times for 3 seconds which allows for fast and precise fine-tuning of the antenna. Tunning direction (frequency UP/DOWN) is done by two buttons, whole tunning motor control is done by processor and firmware. For fast control of the operation and tunning direction, there are 3 color LEDs on the control panel. The motor is powered by a coaxial cable with a DC crossover. On the input side (at TRX) is crossover in the control panel, on the output side, is crossover integrated into antenna assembly. For the control panel and antenna, tuning is used standard DC power adapter 230V/12V/0,8A is included. The antenna and control panel is connected with a coaxial cable of 50 Ohm. The outdoor side is connected by a PL connector, indoor side to the control panel is connected by a standard PL connector. Cable for TRX and control panel connection is included (2m PL-PL).

IMPORTANT WARNING,

MLA-T is for indoor use with a maximum power of 10W. For higher powers than 10W don't use it as an indoor antenna! Even there is no proof of the negative effect of high-frequency radiation at this power level you should avoid exposure of long time exposure. At 100W is the minimum recommended distance of operator from antenna at least 5m. Don't touch the antenna while it is powered by high-frequency power to avoid injury or death. Using MLA antennas can cause EMC problems because standard electronic shielding (without ferromagnetic material) is not effective against the magnetic part of the field. MLA-T is not suitable for persons with a heart pacemaker.
Caution: High-frequency magnetic field passes through walls with low loss.

Technical parameters,

  • Control box connectors:2x PL
  • Dimmensions:820 x 1050 x 220 mm (w,h,d)
  • Frequency range:1,82 to 1,95 MHz
  • Frequency range:3,3 to 4 MHz
  • Frequency range:5,3 to 8 MHz
  • Input impedance:50 Ohm
  • Loop Diameter:800 mm
  • Maximum power:100 W
  • MLA input connector:PL
  • Ratio d/λ on 160m:0,5 %
  • SWR when tuned:max. 1:1,1
  • Weight:12 kg