Flower Pot Antenna
Half-Wave Flower Pot Antenna 2M or 2m70cm Dual Band Image 1 the Basic VHF 2M Design This is the basic 2m Half-Wave antenna using grey 25mm conduit to build a Dual Bander with 70cm capability - Continue the steps from Page 4. VK4PK 6m Flowerpot Antenna - V10.
Resultado De Imagem Para Antena Flower Pot
This calculator is used to determine the length of each element of the flower pot antenna.
Flower pot antenna. The flowerpot works well as a scanner antenna for VHF and UHF listening. 4 Levede 13 Flower Holder Plant Stand Hanging Pot Basket Plant Garden Wall Storage. Glen Lyons VK4PK has provided the following design for a 6 meter flowerpot antenna.
The antenna is dual banded to operate on 70cm using the same sleeve technique as used on the dual-band basic Flower Pot. Double 58 Flower Pot Antenna Extension of the Single 58 and uses a 58λ element for both the top and bottom radiators. Single 58 Flower Pot Antenna.
A quarter wave aerial an end-fed aerial a coaxial ground plane aerial All incorrect. The Coaxil Dipole Design was further developed as the Flowerpot Antenna by John Bishop VK2ZOI. We provide a no obligation free quote service subject to site inspection with no call out fee.
Bob VK3AIC with his recently built flower pot antenna from VK2ZOIs site. What is a flowerpot antenna. Ive heard all sorts of answers to this question most of them completely wrong.
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. Post Update 5 May 2019. Here we do not count the number of turns because it will vary depending on the diameter of the PVC pipe used to wind the cable.
The flower pot antenna IS a half wave dipole and is center fed just as the 12 wave dipole shown in the video. The design objective is to produce a vertical antenna for the six meter band centered on 52Mhz with a. The Single 58 version of the Flower Pot simply substitutes a 58 wave-length section for the top quarter wave of the basic half wave antenna design.
The design is by John VK2ZOI who has excellent documentation and a step-by-step construction guide on his website here. Have a look at John VK2ZOIs page for a bit of a history lesson. The ZOI Flowerpot is an end-fed half wave antenna for 2m made from nothing more than RG58 coax and 25mm PVC pipe.
25mm Conduit Minimum 1metre. Dont put up with a substandard TV Aerial. With the addition of some tinfoil and sticktape it can double as a 70cm colinear.
I was surprised how well it worked and a few others tried it and found it worked very well. The arrangement is shown in the sketch below. 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 58λ radiator uses a 02λ shorted. Half of the FPA dipole is the 14 wave wire center conductor of the coax the other half of the dipole is the 14 wave of coax shield. Here is a link to his webpage with instructions for making several of his designs.
Single 58 Flower Pot Antenna Substitutes a 58 wave-length section for the top quarter wave of the basic half wave antenna design. The ubiquitous Flowerpot antenna has been around since about 1993 but the origins go back to the mid 80s. Call the Flowerpot Antenna Experts in today on 131 546 7 days from 8am-8pm or Book a Time for a Free Quote Online now.
2m and 70cm FlowerPot Antenna. Like most antennas mount the flowerpot high and clear they work well. I have described on this website a number of VHFUHF antennae which have become known as the Flower Pot antennae.
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. The single and dual band versions are cheap to make and perform well as long as you stick to the dimensions given. They are end fed coaxial dipoles with an interesting design to make them dual band and.
Place the bottom 1 metre pipe extension in a flower pot. By all reports its a beauty. Garden Sculpture Planter Rust 108x50cm.
If you prefer the antenna to be centered at 14525 MHz change the two element lengths as follows. Recently at the EMDRC working bee Bob VK3AIC EMDRC Committee Member created quite some interest when he brought in his latest project. Dimensions shown are for a 1st build prototype from a concept drawing and have yet to be refined.
My father Les G6SXB uses one when he goes caravaning so here it is the. A flowerpot aerial is nothing more than a cleverly-fed half wave dipole. That includes the upper radiator lower radiator also the length of the cable that will be wound on the PVC pipe.
Enjoy constructing your own version of the 2m coaxial dipole antenna known elsewhere in the radio amateur community for obvious reasons as a Flower Pot Antenna. If you know how a dipole works then you know how a flowerpot aerial works. They are great for portable and permanent installations as.
A very neat antenna for 2 and 70. Nylon line 500mm Al-foil. A few years ago a made one of VK2ZOIs dual band flowerpot antennas.
2m Double 5 8 Antenna Antenna Gain Ham Radio
Half Wave Flower Pot Antenna Ham Radio Ham Radio Antenna Antenna
Pin On Antenna
Pin On Ham Radio And Stuff
Pin By Marcelo Contreras On Antenas Ham Radio Antenna Ham Radio Radio Antenna
Half Wave Flower Pot Antenna Vk2zoi In 2021 Antenna Ham Radio Antenna Flower Pots
Half Wave Flower Pot Antenna Vk2zoi Flower Pots Ham Radio Ham Radio Antenna
6m Half Wave Antenna Ham Radio Ham Radio Antenna Antenna
Conduit Preparation Details Ham Radio Antenna Ham Radio Dual Band
Pin On Antennas
Coax Pre Trim Details Ham Radio Antenna Ham Radio Satellite Antenna
Experimental Dual Band High Gain Flower Pot Antenna Ham Radio Ham Radio Antenna Radio Antenna
Half Wave Flower Pot Antenna Vk2zoi In 2021 Ham Radio Antenna Ham Radio Antenna
Pin On Radios
Pin On Radio
Half Wave Flower Pot Antenna Vk2zoi In 2021 Flower Pots Antenna Ham Radio
Half Wave Flower Pot Antenna Vk2zoi In 2021 Flower Pots Antenna Ham Radio Antenna
Homebrew 144 Mhz Coaxial Dipole Antenna Flower Pot By Andrew Vk1ad Dipole Antenna Ham Radio Antenna Ham Radio
450 Ohm Slim Jim Antenna Project By Ke4nu Ham Radio Ham Radio Antenna Shortwave Radio
Post a Comment for "Flower Pot Antenna"