End Fed 0-12-15-17-20-(30*)-40-80-160m Multiband Antenne DIY-Bausatz 300Watt PEP

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.

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.