Flower Pot Antenna Dual Band

Double 58 Flower Pot Antenna. Here is a link to his webpage with instructions for making several of his designs.

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The Flower Pot Antenna Iw5edi Simone Ham Radio - Antena flower pot de meia onda dual band high gain parte 1 podrobnee.

Flower pot antenna dual band. By RH Sat 05 Jun 2004 104112. A few years ago a made one of VK2ZOIs dual band flowerpot antennas. GL de YC2YIZ 73.

Dual Band High Gain Flower Pot Antenna. I was surprised how well it worked and a few others tried it and found it worked very well. Wed Jun 2 2004 838 am.

Recently at the EMDRC working bee Bob VK3AIC EMDRC Committee Member created quite some interest when he brought in his latest project. The ZOI Flowerpot is an end-fed half wave antenna for 2m made from nothing more than RG58 coax and 25mm PVC pipe. Have a look at John VK2ZOIs page for a bit of a history lesson.

With the addition of some tinfoil and sticktape it can double as a 70cm colinear. Dimensions for a 2m half-wave Flower Pot. 2m70cm Dual Band Half-Wave Flower Pot Antenna The idea The half wave 2M version of the Flower Pot antenna is easily modified to a dual band antenna for operation on a band that is the approximate third harmonic of the fundamental resonance.

The basic half wave version of the Flower Pot antenna can be readily modified to dual band the antenna for operation on a band that is the approximate third harmonic of the fundamental resonance. I realized a dual band antenna for 20 and 10 meters band using. The ubiquitous Flowerpot antenna has been around since about 1993 but the origins go back to the mid 80s.

The antenna is dual banded to operate on 70cm using the same sleeve technique as used on the dual-band basic Flower Pot. Dual Band Half-Wave Flower Pot Antenna. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators.

Dimensions shown are for a 1st build prototype from a concept drawing and have yet to be refined. Bob VK3AIC with his recently built flower pot antenna from VK2ZOIs site. If you dual band the antenna the 2m resonance will appear to shift upwards slightly.

So dont be too concerned if your antenna at this stage appears to have its VSWR curve dip a bit below 146 MHz. Modified half-wave Flower Pot to dual band the antenna for operation on a band that is the approximate third harmonic of the fundamental resonance. VSWR plot of the 2m Half-Wave antenna.

Substitutes a 58 wave-length section for the top quarter wave of the basic half wave antenna design. Experimental DBHGFP Antenna A challenge laid down by M7MNP thanks Mav. Flowerpot antenna dual-band portable antenna.

Dual Band Half-Wave Flower Pot Antenna. Single 58 Flower Pot Antenna. This resulted in an antenna with swr of about 10 on.

Bob mentioned that John VK2ZOI has some very. The basic half wave version of the flower pot antenna can be readily modified to dual band the antenna for operation on a band that is the approximate third harmonic of the fundamental resonance. Basic Electrical Wiring Impedance Matching Hf Radio Dipole Antenna Qrp Ham Radio Antenna Gadgets And Gizmos Ants Flower Pots.

The design is by John VK2ZOI who has excellent documentation and a step-by-step construction guide on his website. Operation on the third harmonic is achieved by using a sleeve technique so as to form quarter wave phasing sections at the higher frequency to end feed two half waves in phase at the third harmonic. They are end fed coaxial dipoles with an interesting design to make them dual band and colinear for increased gain.

Flower Pot Antenna. A very neat antenna for 2 and 70. Video ini menjawab pertanyaan yg berulang- ulang dari penonton semoga dengan menonton ini menjadi yakin dan mantap untuk membuatnya.

I have described on this website a number of VHFUHF antennae which have become known as the Flower Pot antennaeThis material is a summary of six articles on the Flower Pot Antenna published in March and April 1993 March April and November 2002 and December 2006 in QUA The Newsletter of the Hornsby and Districts Amateur Radio Club Inc HADARC. Anyway the credit here must go to VK2ZOI. Flower Pot Antenna a Dual-Band 20m and 10m portable Antenna.

By all reports its a beauty. This results in the antenna operating with four half-waves in phase on 70cm and provides a theoretical antenna gain of 6dBd on 70. The single and dual band versions are cheap to make and perform well as long as you stick to the dimensions given.

The VSWR plot of the 2m Half-Wave antenna should look like the following. The VK2ZOI high gain dual-band Flowerpot Antenna. ZOI Flowerpot Antenna For 2m And 70cm.

Modificações feitas por PU2PIS a partir do vídeo do Andrade Tutoriais.

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