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The Megaloop FX is our latest active loop amplifier for the 9kHz to max. 180MHz range. It combines all the outstanding features of the successful MegaLoop ML 200 and ML 052. Due to its integrated selectable FM band stop filter and the three-step amplification a maximum of flexibility for all kinds of use is possible.
This broadband magnetic loop antenna is especially suitable for places with difficult reception due to electrical interferences (E-field) in the near-field area, it is also made for indoor use or on the balcony/patio. You can put it up in the attic, at the window, on the balcony, in the carport fixed to the wall or permanently attached to a mast.
Based on the well proven MegaLoop platform, an additional low pass filter and a FM-band stop filter were integrated which can be activated or deactivated with a jumper. In case of FM-interferences, the FM bandstop filter can be activated with a jumper and so FM signals between 88 MHz and 108 MHz will be attenuated by 25 - 40 dB.
The gain of the MegaLoop FX can be adjusted in three steps by an internal jumper (High/Medium/Low)
Frequency response (-3dB) and nominal amplification.
a) FM-band stop off
1. High Gain: 9 kHz - 110 MHz and 25 dB gain
2. Medium Gain: 9 kHz - 150 MHz and 20 dB gain
3. Low Gain: 9 kHz - 180 MHz and 15 dB gain
b) FM- band stop on:
1. High Gain: 9 kHz - 52 MHz and 25 db gain
2. Medium Gain: 9 kHz - 60 MHz and 20 dB gain
3. Low Gain 9 kHz - 66 MHz and 15 dB gain
The MegaLoop FX makes the most diverse radiating elements possible. As standard, a loop made of flexible PVC-coated and seawater-resistant (V4A) stainless steel wire is available. It comes as a 5m (16,40ft) circumference loop for indoor and portable as well as for outdoor use. Other lengths, such as 10m (32,81ft), are on offer. Even lengths up to 20m (65,62ft) have successfully been tested.
Additionally, an aluminum rigid loop with a diameter of 40 cm or 80 cm is also available. Due to its versatility and adjustment of amplification, there will always be an ideal combination of the loop size and amplification.
With two signals in the 7 MHz range, an excellent IP3 value of typ. +40 dB and a IP 2 value of +85 dBm is achieved with mere 5 V ( max. 40mA) and so the loop can be powered via USB or power bank. A DualPower power inserter (bias tee) supply is included in the standard scope of delivery.
The MegaLoop can be operated by two different kinds of power sources. It can be powered either by a conventional plug power supply (5,5 / 2,1mm round plug) or via USB. Powering via USB has the advantage that no external power supply is needed and that the antenna can be operated independently and noise-free with a separate USB PowerBank. The supply voltage range is 5 - 15V DC (40mA max) and thus the antenna is also well suited for portable use.
Coarse protection by gas arrester with 60V trigger voltage and a max. pulse leakage current of 1 kA (8/20µs) and by twofold additional integrated fine protection of max. 2 kV and 8 kV respectively. Additionally, the loop connections are connected to ground with high impedance to avoid static charges.
Since the antenna can be shipped as such a small parcel, there will only be standard postage and when ordering a rigid loop of 1m or 2m diameter you will already save about 35,-€ compared to shipping as a bulk item.
Hint: With two suction cups you can attach the MegaLoop antenna to a window at home, in a hotel or when on the road. Because of its flexible loop, transportation is really a piece of cake. In our newsroom test " Design of a really portable SDR Part 2" I simply put the loop over the tailgate of our Caddy and was able to receive signals beautifully.
Made in Germanyhttps://www.bonito.net/hamradio/megaloop-fx/
|Frequency Range||9kHz - 180MHz|
|Gain||Selectable: 25dB (High) / 20dB (Med) / 15dB (Low)|
|Connection of power supply||USB and 2,1 mm connector|
|Power Supply||5 - 15 Volts|
|Power supply via USB possible||Yes|
|Radiator length||from 5m to 15m|
|Application range||Indoor / Outdoor|
|Junction Box||CPI1000DP DualPower|
|Made in Germany||Yes|
|Ridged Loop 78 cm||Possible|