Flower Pot Vhf

The design is by John VK2ZOI who has excellent documentation and a step-by-step construction guide on his website here. 34 od 1050 2667mm.

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Would the 34 pvc pipe is as closed as we can come to in the USA is there any different in the dimensions the one I trying to build is.

Flower pot vhf. The arrangement is shown in the sketch below. 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. To construct the antenna first select a suitable length of grey 25mm conduit as a minimum 1m but if you make it longer you will have more room below the coil to attach to your antenna.

My father Les G6SXB uses one when he goes caravaning so here it is the. 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. Also new uniden vhf.

In summer months the base can be used as a flower pot Makes an excellent conversation piece year round 100 recycled Hot water heater tanks Includes wood as shown Call Frank on today and be warm tonight under the stars. 25mm Conduit Minimum 1metre. Higher gain is achieved by adding an additional half wave element at the fundamental frequency 2m coupled by a half wave phasing line to drive both half-waves in phase.

The 58λ radiator uses a 02λ shorted co-ax phasing stub to resonate the 58λ element. Begingroup The dual-band basic Flower Pot page. Bagi teman teman yg ingin lebih jelas silahkan masuk ke websi.

Half-Wave Flower Pot Antenna The diagram below shows the basic arrangement of the 2m Half-Wave version of the antenna. With the addition of some tinfoil and sticktape it can double as a 70cm colinear. Double 58 Flower Pot Antenna.

Berdasarkan permintaan penonton maka saya memberikan tutorial pembuatan Antenna Flower Pot lengkap dengan skema dari VK2ZOI. What is the best type of feedline for a base UHF VHF ground plane antenna with a distance of around 50-75 feet of coax. The flowerpot works well as a scanner antenna for VHF and UHF listening.

The ZOI Flowerpot is an end-fed half wave antenna for 2m made from nothing more than RG58 coax and 25mm PVC pipe. 12 inch which is 0840 or 21336mm both type pipe. This antenna should not be confused with an in-phase 58λ over 58λ collinear.

This option is ideal for the backpack portable or an addition to the emergency 2m Go-box. This experimental version is an extension of the basic Half Wave Flower Pot Antenna. 1 1315 od 33401.

Like most antennas mount the flowerpot high and clear they work well. New Blige and bait tank pumps. An interesting point is to compare the lengths specified by John against the formula for a 14 wave element at 52 MHz 1370 mm long 30052 x 095 x 025 137metres.

Version made for mounting on a telescopic pole. Inner conductor 455 mm and braid section 445 mm. That includes the upper radiator lower radiator also the length of the cable that will be wound on the PVC pipe.

Neste vídeo eu ensinarei como montar uma antena FLOWER POT VASO DE FLORES Dual Band VHF e UHF de baixo custo e excelente desempenho. 2m and 70cm FlowerPot Antenna. VSWR plot at 145250 MHz top section 455 mm and the braid section is 445 mm.

The double 58 is a co-axially fed variation of the 1¼ wave vertical dipole shown in the adjacent diagram. The Double 58 is a natural extension of the Single 58 and uses a 58λ element for both the top and bottom radiators. Why SWR significantly changes with adding 10-30 meters of coax in presence of RFI choke.

Antena ini dibuat berdasarkan spesifikasi penciptanya yaitu Mr. This calculator is used to determine the length of each element of the flower pot antenna. Modificações feitas por PU2PIS a partir do vídeo do Andrade Tutoriais.

John VK2ZOI dari Australia. Both sand and reef anchors. Semoga bermanfaat de YC2YIZ.

Experimental Dual Band High Gain Flower Pot Antenna. 2m flower pot antenna center frequency 145250 MHz. 1 person likes this.

Welcome I have described on this website a number of VHFUHF antennae which have become known as the Flower Pot antennae. Live bait tank approx 10l and 80l esky. 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.

You will note the bottom half braid section of the coaxial dipole antenna is considerably shorter than a 14 wave length most likely due the velocity factor of the cable. Nylon line 500mm Al-foil.

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