Double zepp antenna calculator

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this 20 meter double extended zepp is a wonderful antenna. i have built antennas for the 20 yrs i have been a ham radio operator. after making good insulators for the center and ends, i started the job. i took 85 feet of stranded 12 awg wire and cut it in the middle. next connected the 300 ohm ladderlline to the mid point and was finished.

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Second, we select the length so that the antenna will show a bi-directional pattern broadside to the wire on all of the bands included. Note that the length makes the antenna an extended double Zepp at the highest frequency. With an antenna tuner, the antenna will operate above its highest included frequency,

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Extended Double Zepp NVIS Antenna Calculator. The measurements below are for building a Extended Double Zepp Near Vertical Incident Skywave (NVIS) Antenna. The Wire Size can range from 16 AWG to 12 AWG. The larger the wire, the wider the bandwidth.

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Doublet Antenna : This is my favorite multi-band dipole. It is often confused and called a variety of names, the most common is probably "Zepp," or “center-fed Zepp.” Other names include the “tuned doublet” and “dipole with tuned feeders.”

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May 29, 2014 · Basically, an extended double zepp is a center-fed dipole type antenna consisting of two collinear 0.64 wavelength (5/8 wavelength) elements fed in phase. Theoretically, this type of antenna gives an approximate 3dB gain over a conventional horizontal dipole designed for the same frequency.
25-okt-2016 - 11 m Band Extended Double Zeppelin 'Zepp' (EDZ) antenna centred at 27.500 MHz: Radiation pattern and mounting details

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Basic zepp (or J-pole) for kites and balloons. http://www.sciencewriter.net May 11, 2019 · Such an antenna is often called the extended double zepp. Or double extended zepp. It's a low cost bidrectional antenna with a little gain above a regular half wavelength dipole. The diagram above shows an unspecified length of feedline to an antenna coupler. That can allow it to work on multiple bands.

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No-Tuner 80m-10m Doublet . No-Tuner 20m-10m Doublet . Half-Extended Double Zepp

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40 – Double Extended Zepp Antenna. 41 – TCFTFD Dipole Antenna. 42 – Vee-Sloper Antenna. 43 – Rhombic Inverted-Vee Antenna. 44 – Counterpoise Longwire.

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The 40M Extended Double Zepp 14.050 MHz Voltage = 413.7 V at 0.0 deg. Current = 3.764 A at 15.58 deg. Impedance = 105.9 - J 29.52 ohms Power = 1500 watts SWR (50 ohm system) = 2.324 (450 ohm system) = 4.269 10.125 MHz Voltage = 982.8 V at 0.0 deg. Current = 1.537 A at -6.75 deg. Impedance = 635 + J 75.2 ohms Power = 1500 watts

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The Extended Double zepp Revisited A vintage favorite still makes great single or multiband antenna. Jerry Haigwood, W5JH he extended double Zepp (EDZ) antenna has been around for a lot of years. Yet, many amateurs still do not know much about it. The EDZ is an excellent, easy to build, wire antenna that produces real usable gain with

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Zepp Antenna. Zepp Antenna: For the 80m, 60m, and 40m bands I use a classic multiband Zepp antenna. Another name for such an antenna might be an non-resonant doublet or dipole. The beauty of the zepp antenna is that it is balanced, and doesn't really need a ground connection to operate. (Of course, the ground system is left connected anyway.)

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Doublet Antenna : This is my favorite multi-band dipole. It is often confused and called a variety of names, the most common is probably "Zepp," or “center-fed Zepp.” Other names include the “tuned doublet” and “dipole with tuned feeders.” An Extended Zepp (EZ) is an end-fed 5/8 wavelength antenna. An Extended Double Zepp (EDZ) is a 5/4 wavelength center-fed dipole, i.e. Double the Extended Zepp. This article will introduce the Half-Extended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting.

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Am searching for a better 20M solution using wire antennas as I am unable to put up a beam at the location; My initial thought was to build an extended double zepp. But first, I have experimented with the infamous G5RV - an antenna that was actually designed to provide gain on, yes, 20 meters.

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About Bazooka Calculator The resource is currently listed in dxzone.com in 2 categories. The main category is Antenna design calculators that is about Antenna design calculators. This link is listed in our web site directory since Tuesday Aug 21 2001, and till today "Bazooka Calculator" has been followed for a total of 27396 times. So far ...

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Feb 21, 2012 · Yes, 170' is the EDZ length for 40m. 140' is pretty close to the Double Zepp length on 7 MHz, i.e. one-wavelength long. For 40m operation, you want to feed the antenna with an odd multiple of 1/4WL. Assuming a VF of 0.95, that would be an odd multiple of 32.5 feet, i.e. 32.5' or 98' to the 1:1 current balun.

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The antenna is a 10-meter (28.5 MHz) Extended Double Zepp with a 450- stub match system for a 50- feedline where the EDZ models a feedpoint impedance of 141-j694 . Option A is 5.0' with a shorted stub of 1.2' or an open stub of 9.4', and option B is 5.5' with a shorted stub of 15.2' or an open stub of 7.0'.

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40 – Double Extended Zepp Antenna. 41 – TCFTFD Dipole Antenna. 42 – Vee-Sloper Antenna. 43 – Rhombic Inverted-Vee Antenna. 44 – Counterpoise Longwire.

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Feb 21, 2012 · Yes, 170' is the EDZ length for 40m. 140' is pretty close to the Double Zepp length on 7 MHz, i.e. one-wavelength long. For 40m operation, you want to feed the antenna with an odd multiple of 1/4WL. Assuming a VF of 0.95, that would be an odd multiple of 32.5 feet, i.e. 32.5' or 98' to the 1:1 current balun. Jun 23, 2014 · Extended Double Zepp Antenna - Duration: 8:09. Stan Gibilisco 5,880 views. 8:09. MMANA Tutotial Part 4 M0MCX introducing the Mega-Loop (not Mego-Loop) - Duration: 10:51.

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Jan 16, 2003 · Technically, an Extended Double Zepp is a single band antenna. If it is used on other bands, it is no longer an EDZ. The EDZ is simply two 5/8WL monopoles configured as a dipole of about 1.25WL length.

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About Bazooka Calculator The resource is currently listed in dxzone.com in 2 categories. The main category is Antenna design calculators that is about Antenna design calculators. This link is listed in our web site directory since Tuesday Aug 21 2001, and till today "Bazooka Calculator" has been followed for a total of 27396 times. So far ...

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Doublet Antenna : This is my favorite multi-band dipole. It is often confused and called a variety of names, the most common is probably "Zepp," or “center-fed Zepp.” Other names include the “tuned doublet” and “dipole with tuned feeders.”

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The antenna is a 10-meter (28.5 MHz) Extended Double Zepp with a 450- stub match system for a 50- feedline where the EDZ models a feedpoint impedance of 141-j694 . Option A is 5.0' with a shorted stub of 1.2' or an open stub of 9.4', and option B is 5.5' with a shorted stub of 15.2' or an open stub of 7.0'.

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Doublet Antenna : This is my favorite multi-band dipole. It is often confused and called a variety of names, the most common is probably "Zepp," or “center-fed Zepp.” Other names include the “tuned doublet” and “dipole with tuned feeders.”

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The only wire dipole with gain is the Extended Double Zepp ("EDZ"). It has 3dbd gain or doubles your power. I studied the possibilities on the internet. I wondered if I could do it in a inverted vee since I only had one 35 foot mast available . So I set out to test this puppy.