This simple, lightweight travel loop is quick to deploy and the perfect companion for Airspy and similar SDR radios!   Most of the problems were related to ineffective RX antennas that were too sensitive to the surrounding noise. So we decided to design a new Noise Cancelling Passive Loop (NCPL) to fix the noise problem. The YouLoop is a generalization of the Möbius loop where a balanced electric shield is used as the centre of a multi-turn loop. The rest of the turns run inside the shield. To preserve this electric balance from alteration by the transmission line, a low loss miniature BALUN is used. The more turns, the higher gain at the lower frequencies. Note that to preserve the electric balance, the number of turns increases by increments of two. An aspect of this two-turns coax build is its response in VHF. The same HF magnetic loop can be used in the FM and the 2m HAM bands with a slight change of its core principle, it’s now a folded dipole. The feed point of the folded dipole is on the top and the actual legs are composed of the coax ground. In order to further improve the impedance matching and flatten the frequency response, a high impedance external pre-amplifier can be used near the antenna to present a constant output impedance to the receiver. This could be the best option for you if you do not want or cannot build the antenna from scratch. AS the only remaining action is to connect the SMA cables. Specification HF Response: 10kHz to 30 MHz VHF Response: up to 300 MHz Maximum Power: 250 mW No Tuning required Low-Loss Wide-Band BALUN with 0.28 dB loss typ. Dimensions: H-31cm x W-24cm x L-17cm Weight: 0.5kg

TECSUN AN-48x XL  Die Tecsun AN-48x XL ist eine tragbare Innenantenne mit aktiver Schleife (Loop) zum Empfang von Langwelle (LW), Mittelwelle (MW) und Kurzwelle (SW). Sie wurde speziell für Weltempfänger entwickelt. Diese Softloop bietet durch die mitgelieferten Kabel/Adapter umfangreiche Anschlussmöglichkeiten. An der mitgelieferten Controlbox lässt sich die Antenne bequem und individuell auf die Frequenz abstimmen (Frequency Tuning) und auch die gewünschte Verstärkung separat einstellen. Somit kann der Empfang auf Kurzwelle mit der AN-48x Loop deutlich verstärkt und abgestimmt werden. Das führt bei Weltempfängern zu einer klaren Empfangsverbesserung. Auch ideal für Unterwegs Durch die kompakten Abmessungen und den schnellen Aufbau ist die AN-48x XL Loop Antenne auch ideal für die Reise oder für die mobile Wellenjagd geeignet. Praxistipp Für eine optimale Nutzung empfehlen wir die AN-48x XL Softloop Antenne so zu befestigten, dass sie noch gedreht bzw. ausgerichtert werden kann. Damit können ggf. Störungen ausgeblendet bzw. das Nutzsignal verstärkt werden. Dazu empfehlen wir die Antenne an verschiedenen Standorten auszuprobieren. Frequenzbereiche LW: 120-400 kHzMW (AM): 520-1700 kHzSW: 3500-20000 kHz Tecsun AN-48x XL Ausführung im Detail Loopschleife mit Teleskopspreizer und Verstärker, sowie Bandumschalter Bedienteil (Controlbox) mit Ein-Aus-Schalter und Regler für Frequenzabstimmung und Verstärkungsregelung Verbindungsleitung Antenne-Bedienteil (jeweils 3,5mm Klinkenstecker) Adapter-Leitung - BNC (male) für Empfänger mit BNC Antennenbuchse Adapter-Leitung - CINCH (male) für Empfänger mit CINCH Antennenbuchse Adapter-Leitung – Krokodilklemmen, zum Anschluss an eine Teleskopantenne, für Weltempfänger die keinen externen Antennenanschluss für LW/MW haben. Ständer- gut geeignet, um den Ferritkoppler mit kleinen Radios zu verwenden Saugnapf zur Befestigung der Schleife an Fensterscheiben Clip zum Aufhängen Spreizer, damit das auch eine Schleife wird... Lieferumfang Loop Antenne Drei Anschlusskabel für Weltempfänger/Radios (für fast alle Gelegenheiten bzw. Empfänger) Ein Ferritkoppler für Lang- und Mittelwelle Ein Halter zum positionieren des Ferritstabes an ihrem Empfänger Deutsch- und englischsprachige Bedienungsanleitung  Wichtig Für den Betrieb benötigen 2 Akkus / Batterien (Micro AAA), die NICHT im Lieferumfang enthalten sind. Diese Antenne ist nicht für Sendebetrieb konzipiert.

MegaLoop FX Active Loop Antenna Probably the most flexible active loop antenna Ultra broadband frequency range from 9kHz - 180MHz High dynamic range with an IP of typ. +40 dB and IP 2 of typ. +85 dB Power requirements: 5V - 15V Selectable FM band stop filter with low pass function Selectable amplification in three steps Various radiating elements and sizes can be used Indoor and outdoor use Additional ground terminal (M5) on the enclosure High-quality craftsmanship; splash-water proof enclosure; all screw terminals made of stainless steel Small packaging = small shipping costs Ideal for outdoor use because dismountable and USB power supply 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. Flexible range of application 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. Flexible FM-band stop filter 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. Flexible three-step amplification 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 off1. High Gain: 9 kHz - 110 MHz and 25 dB gain2. Medium Gain: 9 kHz - 150 MHz and 20 dB gain3. 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 gain2. Medium Gain: 9 kHz - 60 MHz and 20 dB gain3. Low Gain 9 kHz - 66 MHz and 15 dB gain Flexible loop sizes 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. Excellent IP values with power supply as low as 5V 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 optional Cable 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. Integrated threefold surge protection of the active parts 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. Low shipping costs - no bulky item ! 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. You want to test the MegaLoop FX live on air? If you would like to test the MegaLoop FX live, you can now conveniently do this over the Internet with a KIWI SDR. Just click on this Link and you can browse the whole band from 10kHz to 30MHz. The linked KIWI-SDR with MegaLoop and 6,8 Meter Loop is located in northern Germany and can handle up to 4 users at a time. Scope of delivery MegaLoop FX 5m (16,40ft) PVC-coated, seawater-resistant stainless steel wire. Power inserter CPI 1500UNI Manual Made in Germany Recommendation Near the sea or in case of possible contact with salt water we strongly recommend the use of our weather protection case. Please note! The offered coax cables are custom-made and therefore not returnable / refundable.

The MegaLoop FX active receiving loop with 3-way adjustable gain is now available in a new loop version: In addition to the optional large loops with 5-15m circumference and the 80cm diameter aluminum ring radiator, a 90cm diameter ring radiator variant is now available.The loop radiator is constructed of 20mm diameter stainless steel tubing that can be disassembled into eight plug-in segments to save space during transportation.For long-lasting use, it comes complete with a UV-resistant polycarbonate weatherproof enclosure and mast brackets (28 or 40 mm diameter), as well as all stainless steel mounting parts.A continuous pole, preferably metal and grounded, is required for mechanically stable mounting. It is attached twice, at the base and at the top, using appropriate pole brackets or clamps.Scope of delivery Loopring 90cm stainless steel, dismountable Weather protection enclousure2x pole brackets for top and bottomMast bracketStainless steel earthing cable The mast shown in the pictures and the MegaLoop are not included in the scope of delivery!

Stainless steel loop for MegaLoop Additionally for outside use, we can offer now a loop made of salt-water proof, PVC-coated stainless steel cable (V4A). The standard length is 5 meters. On request, we can deliver custom made lengths. For listeners interested in long wave reception, a 10m-loop offers a real improvement.

 Paloran 200 passive Loopantenne Ultra-breitbandiger Frequenzbereich von 9kHz bis 200MHz Unterschiedliche Strahlerformen und Größen verwendbar Im Innen- und Außenbereich verwendbar Zusätzlicher Erdungsanschluss (M5) am Gehäuse Hochwertig verarbeitet; spritzwassergeschütztes Gehäuse, alle Schraubanschlüsse in Edelstahl ausgeführt Kleine Verpackung = günstige Versandkosten Die PALORAN 200 ist eine hochwertige, breitbandig angepasste, passive Loopantenne. Die Paloran stellt eine gute Alternative überall dort dar, wo genügend Platz zur Aufhängung vorhanden ist und gleichzeitig störungsarmer Empfang benötigt wird. Loopantennen sprechen im Nahfeldbereich (Abstand weniger als ca. 3 Wellenlängen) hauptsächlich auf die magnetische (H-Feld) Komponente des elektromagnetischen Feldes an. Dadurch wird der Empfang von hauptsächlich elektrischen (E-Feld) Störungen im Nahfeld stark unterdrückt, was sich besonders im unteren Frequenzbereich (VLF/Langwelle/Mittelwelle und unterem KW-Bereich) durch störungsärmeren Empfang positiv bemerkbar macht. Durch die rein passive Wirkungsweise benötigt die PALORAN 200 (aufgrund der höheren Schleifenlängen ab 15m Umfang) einen größeren Platzbedarf im Vergleich zu einer aktiven Loopantenne. Dafür erzeugt die Antenne aber keinerlei Intermodulationen oder andere intern generierte Störkomponenten, ebenso entfällt die Fernspeisung. Lieferumfang: Paloran 200 15 Meter Großschleife aus PVC-ummantelten, seewasserfestem Edelstahldrahtseil (V4A) 2 Stück Isolatoren Manual Was brauche ich sonst noch? Die Paloran 200 wird ohne Koaxialkabel ausgeliefert, da ja jeder eine andere Länge benötigt. Wir bieten Ihnen dazu die passenden Kabel wie das HF214UF oder Hyperflex 5 in unterschiedlichen Längen an. Sie benötigen zwei Koaxkabel: Ein Koaxkabel zwischen der MegaDipol MD300DX Aktivdipol und der Einspeiseweiche CPI1000DP mit BNC-Steckern. Dazu ein weiteres Koaxialkabel, von der Einspeiseweiche (BNC-Stecker) zu ihrem Empfänger. In Meeresnähe oder beim möglichen Kontakt mit Salzwasser, empfehlen wir dringend den Einsatz unseres Wetterschutzgehäuses. Der Überspannungsableiter OVP1000 kann bei den aktuellen Wettereignissen ebenfalls sinnvoll sein. Zum Schutz der BNC-Stecker gegen Witterungseinflüsse, bieten wir mit dem NittoTape ein selbstvulkanisierendes Klebeband an.

Rigid Loop for the MegaLoop Antenna Alternatively, for outdoor or indoor use,  the anodized aluminum rigid loop with its supporting rod is available in 80cm. The MegaLoop amplifier is not included

ALLMOPRAN 120 – Passive Allmode Receiving Antenna 20 kHz – 120 MHz Extremely wideband frequency range from 20 kHz to 120 MHz Compatible with different radiator types and sizes Inputs and output protected by fast 70V gas discharge arrestors Switchable input-side limiter (2 Vpp) Additional grounding terminal (M5) on the housing High-quality workmanship; splash-proof housing, all screw connections made of stainless steel Universal radiator set included: 2 × 7.5 m PVC-coated stainless steel wire rope Compact packaging = low shipping costs Universally configurable The ALLMOPRAN 120 from NTi is an innovative passive receiving antenna for demanding applications and a true all-rounder. It can be configured for connection with the following radiator types: Dipole (balanced) or End-fed (unbalanced) Loop (balanced or single-ended grounded) The ALLMOPRAN can therefore be configured for either H-mode or E-mode operation. Switching is done via a toggle switch, provided that the corresponding type of radiator is connected. The standard delivery includes a 2 × 7.5 m universal radiator set, allowing for a wide range of different radiator configurations. By combining high-quality transformer materials with a wideband matching network, operation is also possible in the VLF range – typically a weak spot for passive antennas. As a passive system, no additional power supply is required. The BNC connector socket is splash-proof and mounted in a durable, UV-stabilized polycarbonate housing with a transparent cover. Flexible adaptation to the local interference environment Electromagnetic waves consist of two different components in the near field: H or B (magnetic field strength vector) E (electric field strength vector) The near field is defined as a maximum distance of one wavelength; beyond that, far-field conditions apply. While the two field strength vectors are 90° out of phase in the near field, they are no longer separated in the far field. Since most sources of interference are found below 3 MHz, near-field conditions already apply at distances of less than 100 m. In such cases, it can make sense to prefer or suppress the E- or H-component in the near field. Depending on local conditions and interference sources, one or the other field component may provide better reception results. Want to test the ALLMOPRAN 120 live? You can now conveniently test the ALLMOPRAN 120 live on the Internet via a WEB-SDR. Simply click [this link], and you can explore the entire band from 20 kHz to 30 MHz. The linked WEB 888-SDR with the ALLMOPRAN in End-Fed mode and a total length of 21 m is located in Alsace (France). Up to 4 users can access it simultaneously. TECHNICAL DATA Optimal frequency range: 20 kHz – 120 MHz (–3 dB) Connector type & impedance: BNC / 50 Ohm Radiator connections: M5 thread (stainless steel) Output is DC-blocked (max. 50 V) Operating temperature range: –25°C to +45°C Size/weight: 105 × 105 × 50 mm / 0.2 kg Weather protection housing: splash-proof according to IPX2 (protected against dripping water at up to 15° tilt) Scope of delivery: ALLMOPRAN 120 in splash-proof weather housing Universal radiator set 2 × 7.5 m PVC-coated stainless steel wire rope Optional accessories: Mast mounting bracket Ground connection cable 155 mm, stainless steel wire rope, M5/M6 Manual (latest version available for download) FAQ The FAQ for the ALLMOPRAN can be downloaded [here].