End Fed Multiband Antenna for 10-15-20-40-80m 300Watts

Pressure compensating valve for Endfed kits. Easy to install in an 8 mm hole. This pressure compensating valve ensures stable performance in all weather conditions. Air pressure differences in the outside air can cause moisture to enter the enclosure through ports and bushings. Ports and bushings. The air pressure compensating valve contains a membrane that compensates for air pressure differences. Waterproof, protection class IP66 / IP68 For use in BalUn and UnUn enclosures To be placed in 8mm hole.

Mounting plate for the toroid in the housing of our End Fed kits This mounting plate enables the toroidal cores FT240 or FT140 to be firmly mounted in the housing of our End Fed kits. The mounting plate is made of 1.6mm thick printed circuit board material and already has the mounting holes for the various toroidal cores. The M3 fastening material made of stainless steel are included.  

Mantelwellensperre / RFI-Choke 1KW Version Diese Mantelwellensperre vermeidet, dass die Abschirmung des Koaxialkabels nicht Teil des Antennensystems wird und ungewollt abstrahlt. Darüberhinaus dient sie der Anpassung des unsymmetrischen Koaxkabels an symmetrische Antennen und kann daher auch als "1:1" Balun verwendet werden. Durch den Aufbau nach dem W2DU Prinzip, ist die Mantelwellensperre 1KW extrem breitbandig und verlustarm. Eine Vielzahl von hochpermeablen Ferriten werden auf hochtemperaturfestes PTFE Koaxkabel gefädelt, eingeschrumpft und entsprechende Stecker montiert. Somit lässt sie sich leicht in die Koaxzuleitung integrieren. Die Mantelwellensperre 1KW ist ca 45cm lang, sehr breitbandig und verfügt über ca. 1000 Ohm Sperrdämfung im Frequenzbereich von 160m - 2m. Sie ist wetterfest eingeschrumpft und hat 2 hochwertige PL259 Stecker mit PTFE-Dialektrikum und Goldkontakt an den Enden. Ein PL258 Verbinder auch mt PTFE und Goldkontakt ist im Lieferumfang enthalten. WICHTIG! Platzieren Sie die Mantelwellensperre 1KW im Falle einer End Fed-Antenne nicht direkt am Speisepunkt der Antenne!Zwischen dem Transformer der End Fed und der Mantelwellensperren sollte ein Koaxkabel mit einer Länge von >= λ 0,05 (bei 80m etwa 4,20m) eingefügt werden.  

Multi Isolator Maxi 120x16x16mm Der Multi Isolator Maxi aus Polycarbonat, ist stark, leicht, witterungs- und UV-beständig. Der Multi Isolator Maxi ist multifunktional einsetzbar, zum Beispiel als Zugentlastung für Dipole und EndFed Antennen. Abmessungen; 120x16x16mm Material: Wetter und UV-beständigiges Polycarbonat Isolator, Endfed, Fritzel, Dipol, Antennen, Hamradio, Amateurfunk , FR1901, fritzel isolator

Halterung für End Fed Antennen

1 – 30 MHz Common mode filter with bifilaire windings for optimal attenuation There are many types of common mode chokes available, HF Kits opts for a common mode choke with bifilar windings for optimal filtering. This 1 – 30 MHz common mode current filter is optimized for the 80 and 160 meter band. In this case a FT240-31 toroidal core with optimal performance for the lower frequency range is used. The 1 – 30 MHz common mode choke performs very well on the entire HF spectrum. The attenuation is therefore around 30 dB across the entire HF frequency spectrum. This filter is therefore a real all-rounder for amateurs who want to work from 160 meters to 10 meters. Even people who deal with LPAM (Medium Wave) can use this filter. The main reason for using a common mode choke is to ensure that the coax cable’s shield does not become part of the antenna system and will radiate unintentionally. This has all sorts of nasty effects, think of: interference issues, disrupted radiation pattern of the antenna and a higher noise level. This last point is because not only does the coax cable’s shield radiate when you transmit, but the shield also works as a receiving antenna. Because the coax cable often makes a considerable trip within the house, close to interference sources (mains, PLC etc…) It is useful to eliminate these sources of interference. Any way, Good reason to use a common mode choke. The effect of this common mode choke with bifilar windings is difficult to predict. This depends on local circumstances. Think of: antenna type, antenna placement, type of feed line, feed line placement and especially local sources of interference. There are manufacturers that promise in advance a significant drop in interference, however this is not real. There are cases where the noise level decreases by two to three S points, but also cases where the filter has almost no effect. This kit includes: IP65 enclosure 100 x 100 x 55 mm (Polycarbonat) Ringcore Amidon FT240-31 Winding wire 18 AWG – 4x 85cm PTFE 19 x 0.25 mm copper “Silver plated” Toroid mounting plate Stainless steel M3 6mm screws 4x Stainless steel M3 Spring washer 4x 2x PL 259 Chassis 2x M3 cable lug 8x Stainless steel M3 Bolt 12mm 8x Stainless Steel M3 Nut 8x Stainless steel M3 washer 8x Stainless steel M3 tooth washer IMPORTANT! Do not place the common mode choke in case of an End Fed antenna directly at feed point of the antenna.

This pre-assembled coaxial cable with integrated RFI choke for End Fed antennas is ready for immediate use. Thanks to its design based on the W2DU principle, the common mode choke is extremely broadband and low-loss. It effectively prevents the shielding of the coaxial cable from becoming part of the antenna system and radiating unintentionally. It therefore provides effective protection against unwanted RF interference. It also serves to adapt the unbalanced coaxial cable to balanced antennas and can therefore also be used as a “1:1” balun. A variety of highly permeable ferrites are threaded onto lightweight HF-195 FX-ZH low-loss coaxial cable, shrink-wrapped and assembled with connectors as required. The integrated RFI choke (common mode choke) is installed at the end of the cable after 2.10m for the 10-40m bands or after 4.20m for the 10-80m bands. We offer lengths of 10, 15 and 20m. Other lengths can be produced on request. The lightweight coaxial cable with integrated RFI choke (common mode choke) is also ideal for portable use when traveling, QRP, COTA, POTA, IOTA, SOTA (Summit on the Air) or DX expeditions. 50 Ohm HF195 FX-ZH coaxial cableReady for immediate usefor 10-40m or 10-80m bandPlug and PlayChoice of cable lengthConnector of your choicePower limit Max: 250W PEP SSB Translated with DeepL.com (free version)