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directives

It is a steering-type antenna and typically consists of a reflector, a dipole and one or more director elements (2 to 20 or more), parallel to each other, each with a wavelength of about .2 compared to the optimal frequency to be received, (and 5% for the reflector , -5% for the director compared to the resonance frequency of the dipole) and assembled on a tubular or quadrangular profile (called boom or in Italian boom).

Thanks to its directional skills it offers good gain and good mitigation with respect to signals coming from directions other than the pointing (multi-path); generally reflections on structures or reliefs that may be on the side or behind the antenna and which in analog television would translate into "double image" (or, in the context of radiostereophony, audio distortion).

The Yagi-type antenna, with a properly calculated size, is used from short waves to microwaves, including wifi, and wherever good gain and directness is required. On very small wavelengths (microwaves) the parabolic reflectors (parabolic antennas) are more convenient in terms of directness and therefore gain (typically when parabolas of at least ten lengths in diameter can be used wave).
Brand: STEPPIR
Passive element to the band of 6 m per directive 3 STEPPIR ElementsSingle element in length fixed in aluminium on the band 6 m (-50.300 50.000 Mhz);Improves performance to 10.1 dBi / 30dB front andrear;..
130.75€
Brand: MOSLEY
6 m Extension Kit for TA-53MThe Kit covers the gang up to 50 Mhz (6mt) on 3 elements with a gain of 6.9 dBD..
265.00€
Brand: LOOP ANTENNA
  LOOP ANTENNA-Baby Cyrus mazzoni from 6.6 to 28.9 MHzNew versionIn 2014, we were on the radio HAM to illustrate the antenna to whoever wanted to know something more about it and to receive the impressions of those who were already using.The feedback we received these days h..
1,379.00€
CUSHCRAFT A3S 3 DIRECTIONAL ANTENNA ELEMENTS
free shipping
Brand: CUSHCRAFT
CUSHCRAFT to 3 S3 S 3 10/15/20 CUSHCRAFT DIRECTIONAL ANTENNA ELEMENTS in MTPOWER 2 KW8 DBI GAINBOOM LENGTH 4.7 METRESLONGEST ELEMENT 8.45 METERSWEIGHT 12.9 KGManual Here..
669.00€
Brand: CUSHCRAFT
the Cushcraft MA-5B is a Mini Beam for all bands from 20 m to 10mAttraverso the use of traps and more additional loads on MA-5B can cover 5 bands simultaneously. The dimensions are small enough for reading. About 10 m, 15 m and 20 m, the antenna works like a 2 elements. On technique and 17 m on a fo..
589.00€
Extension Kit A 743 7/10 MHz to A3S
Not available
Brand: CUSHCRAFT
Extension Kit A-743 7/10 MHz to A3SThe Kit covers the band (30/40)..
265.00€
Extension Kit A 744 7/10 MHz for A4S
Not available
Brand: CUSHCRAFT
Extension Kit A-744 7/10 MHz for A4SThe Kit covers the band (30/40)..
323.94€
Brand: MOSLEY
Kit TA 40 KR for TA53M is a premium product from MOSLEY(). Kit TA 40 KR for TA53M you find in directives...
458.99€
Brand: MOSLEY
 10, 15, 20 Meter 3 Element Ultra Light Weight Small Foot Print Good all-around performance Color coded 18-8 & 300 series Stainless Steel 2 Year warrantySHIPPING INCLUDED IN PRICE Frequency, MHz14, 21, 28Power Rating, watts CW500Power Rating, watt..
750.00€
Brand: MOSLEY
The performance of the MINI-33-AW will surprise you!3 Elements out of 10, 15, 201 rotary dipole for 12 and 17Ultra lightSmall boomGood comprehensive performance2 years warrantyCOMPLIMENTARY SHIPPING..
900.00€
Brand: MOSLEY
3 bande 3 directional antenna elementsFREE SHIPPING WORLDWIDE Junior series: light and small directional antenna for situations narrowness of space. The price you pay for a smaller antenna is a minor gain. Max power 1200 W SSB. Special Versioane with 2.5 KW power max SSB: see MP-33N. ..
705.00€
Brand: MOSLEY
MOSLEY TA-33-JRN WARC: 10-12-15-17-20 Meter 4-Element 5-Band Mini-BeamFREE SHIPPING WORLDWIDETechnical Data: This is a TA-33-JRN with additional WARC dipole. QRV on 5 bands with little effort.10 Meter8 .1 dBD12 Gain:Meter0 .0 Meter6 dBD20 Meter5/17 .8 .9 dBD15 dBDFront/Back Ratio:10 Meter20 ..
910.00€
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