70cm Antenna Projects and Designs
Find construction plans and technical details for various 70cm antennas, including Yagis, quads, and ground planes for ham radio operators.
Antennas for the 70cm band (420-450 MHz) are crucial for many UHF amateur radio activities, including local repeater work, satellite operation, and long-distance DX via tropospheric scatter or moonbounce (EME). Operators building 70cm stations often focus on optimizing gain and pattern for specific modes, whether it's a wide beam for FM voice or a sharp, high-gain array for weak-signal digital modes like FT8.
This category features numerous antenna projects for the 70cm band, ranging from simple ground planes and collinear designs to more complex Yagis and Quagis. Hams can find plans for compact antennas like the DG7YBN GTV series, suitable for portable SOTA operations, or high-gain arrays for serious DXing. Resources also cover specialized designs such as circularly polarized patch antennas and Lindenblad arrays, often used for satellite QSOs.
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A moxon antenna project for 70 cm band, test and results of this popular antenna model applies to UHF bands. -
DF9CY - 10 Element for 432 MHz Winkler Antennen -
A 14 elemets yagi antenna for 432 MHz based on DK7ZB design -
UHF 3 element portable antenna with gamma match by ON6MU -
How to build a 432 Mhz Quagi, using a wood-made boom, and gives a 13 DBI Gain -
Here is a 70cm (440 Mhz) J-Pole antenna that is inexpensive, and easy to build. Author use 1/2 inch copper pipe, and the associated fittings necessary. The dimensions aren't typical however, this is what it took to get its SWR low. -
A standard 6 elements design scaled for UHF application. All material used in this project are easily obtainable tubes and rods which is limited within a total budget of $18. -
U6YRN 6 element yagi antenna for 430-450 Mhz -
The antenna is a vertical dipole, around which four parasitic elements are forming a circle. -
70cms Simple Moxon 2 elements antenna -
70cm-Longyagis in 28Ohm-DK7ZB-Design -
A suitable high gain 70cms antenna for SOTA operation by Richard Price GW0VMW -
Schematic for a DIY 70 cm vertical antenna -
Pictures and plans to build 70 cm yagi antennas -
Quagi 8el 70cm improved 13.77dBi by IK1HGE -
Construction details for a 9-element 432 MHz DK7ZB-type Yagi antenna, including EZNEC calculations, dimensions, stacking, and build photos. -
This is a 70cm big wheel antenna which is used at DB0FAI beacon -
A moxon antenna for UHF in french -
A simple vertical antenna for 70 cm band -
Here is a very simple 70cms dipole from Harald PD2HFE, which uses a single piece of RG-213 coaxial cable 34 cms in length. -
70cm, Collinear Antenna From Coax -
The latest and best yagi beams for 432MHz tested and optimized with NEC -
Build this cheap and easy satellite downlink antenna -
A short good performing antenna for 70cm -
A high G/T Yagi with bent DE for compact contest arrays -
A compact Yagi with bent Driven Element. Worlds smallest yagi that did EME QSO -
435 MHz double quad antenna by F5WN -
A 70 cm yagi antenna design by YU7EF includes tables with antenna elements dimension and spacing. This UHF Yagi antenna plan provides a maximum gain of 17.93 db -
An experimental 70 cm patch antenna project by VK3BLG, detailing construction for satellite operations and circular polarization, with VSWR under 1.1:1. -
A quarter wave ground plane for 70 cm -
An halo stack antenna for 70 cm by KR1ST -
An HB9CV antenna for the 70 cm band in french -
homebrew an helix antenna for 435 MHz by VE2ZAZ -
How to build a high gain vertical antenna for the UHF amateur or CB Bands, by radio experimenters handbook -
A Lindenblad Antenna for 145 MHz and 435 MHz with an integrated 50 MHz J-pole -
A Parasitic Lindenblad Antenna for 70cm by Anthony Monteiro, AA2TX. This is the official 16 pages PDF File published by AMSAT about the 70cm Parasitic Lindenblad Antenna. -
A suitable high gain 70cms antenna for SOTA operation was sought that did not have the drawbacks of a long Yagi antenna, principally a narrow beamwidth and bandwidth. -
This is an antenna that author just built. Was intend for receiving the AO-27 downlink (at 436.800 +/- doppler). It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB. -
5 Element Yagi with Conventional Driver, this little Yagi has a high F/B, which makes it quite useful as a contest stack. -
A 70 cm yagi designed for EME + SSB narrow bandwidth version, strictly G/T breeding. This little Yagi has a high F/B, which makes it quite useful as a contest stack -
An home made UHF 7 elements Yagi antenna project -
Helix antenna 432/435 MHz 14 turns. This 50 ohm impedance antenna allows, when fed with 25/50W of SSB RF, to join the orbiting satellites like AO-40 and AO-10 very easily -
An home made 70 cm colinear antenna at M1KTA blog -
This is a plan for an optimized element UHF Yagi Antenna for UHF Bands featuring a 9dBd forward gain, a 13 dB front-back ratio, and a bandwith of 10 MHz on the 430-440MHz range. -
This little antenna is cheap and easy to build, lightweight, and very functional on 2 meters and 70 centimeters by NA4IT -
10 Elements Cross-Yagi Antenna for 433 MHz. The base of the 10el antenna is the recalculated RA6FOO antenna.Circular polarization is realized - by a phasing quarter-wave line, matching of horizontal and vertical polarization antennas -
ZL1BJQ 23 feet diameter dish antenna for 432 Mhz -
This page provides a detailed step-by-step guide on building a 70 cm band repeater antenna for hams. The instructions are clear and easy to follow, making it suitable for both beginners and experienced operators. The antenna design is optimized for the 70 cm band, ensuring efficient communication for local repeater systems. Whether you're looking to improve your repeater setup or just starting out in amateur radio, this guide will help you build a reliable and effective antenna for your station. -
A 70cm ground plane antenna made with a 90cm of 1mm silver steel rod -
A homemade 70cm handitenna made with a PVC pipe -
This is a simple half wave antenna for 70 cm band, made using the jpole design. -
A homemade Jpole antenna for 70 cm band made with 6mm copper pipe -
A 18 elements Yagi antenna for 432/435 MHz as published on 2011 CQ VHF magazine -
The antenna described here is a direct-connect dual-rectangle beam for use on 70 cm between 440 and 450 MHz