70cm

106 links - and 2 categories

9 dB 70cm Collinear Antenna - Build A 9 dB UHF Collinear Antenna From Coax By N1HFX
[ Hits: 3741 | Votes: 26 | Rating: 6.68 ]
Handitenna 440 Beam Antenna - A homemade 70cm handitenna made with a PVC pipe
[ Hits: 858 | Votes: 0 | Rating: 0 ]
GP antenna for 70 cm - A 70cm ground plane antenna made with a 90cm of 1mm silver steel rod
[ Hits: 590 | Votes: 3 | Rating: 7 ]

Mixed Mode Helical Antenna - An experimental omni-directional antenna for 70cm which has both horizontal and vertical gain
[ Hits: 1006 | Votes: 3 | Rating: 8 ]

A Dual Band VHF/UHF J Pole - This antenna provides continuous coverage of the 2 metre (144-148MHz) and 70cm (430-450MHz) bands and is an excellent choice for base station use.
[ Hits: 2284 | Votes: 17 | Rating: 6.83 ]
Homemade 2M/440 J-Pole Antenna - A 2m 70cm Dual Band J-Pole antenna for 35 USD. An excellent performing J-Pole type antenna, constructed from readily available materials.
[ Hits: 1049 | Votes: 5 | Rating: 3.4 ]

70 cm Lindenblad Antenna - The antenna is a vertical dipole, around which four parasitic elements are forming a circle.
[ Hits: 1951 | Votes: 2 | Rating: 2.5 ]

70cm Moxon Beam - A moxon antenna project for 70 cm band, test and results of this popular antenna model applies to UHF bands.
[ Hits: 1735 | Votes: 9 | Rating: 6.34 ]

13 elements VHF UHF Yagi - Yagi with 5 Elements on 2 m, 8 Elements on 70cm and one Feedpoint by DK7ZB
[ Hits: 877 | Votes: 3 | Rating: 10 ]
VHF Yagi from Old TV Antenna - 6m/2m/70cm Yagi Antenna Built from Old TV Antenna This turned out to be a great little antenna. It works the 6 meter, 2 meter and 70 centimeter bands. You can use one common feedpoint or two seperate feedpoints depending on how you would like to connect this antenna to your transceiver.
[ Hits: 731 | Votes: 2 | Rating: 10 ]
5 Element 2M / 70cm Yagi - On this page is the design for Dual Band 2M / 70cm antenna with 3.2mm elements. The antenna has a 50 ohm designed driver. This Yagi has a unique element called a Open Sleeve
[ Hits: 1692 | Votes: 10 | Rating: 5.5 ]
Dual Band VHF UHF Yagi Antenna projects - On this page are designs for Dual Band 2M / 70cm antennas. All antennas are 50 ohm designed driver. These Yagis have a unique element called a Open Sleeve. 4 Element 5 element and 9 element Dual Band - 2M / 70cm antenna projects
[ Hits: 753 | Votes: 4 | Rating: 5.75 ]

NZ 70cm National System Live - Listen to the New Zealand 70cm National System.
[ Hits: 454 | Votes: 0 | Rating: 0 ]
NZ 70cm National System live radio - Listen to the New Zealand 70cm National System.
[ Hits: 369 | Votes: 1 | Rating: 1 ]

New Paket Radio: Hamnet over 70cm by EA4GPZ - An introduction to NPR by Daniel Estevez. In this blog article Daniel EA4GPZ / M0HXM, introduce the new IP communication protocol over the 70 cm amateur radio band. Daniel is an experienced operator on IP on 430 MHz with CC1101 and Beaglebone black project and makes a good comparison of the two projects.
[ Hits: 238 | Votes: 0 | Rating: 0 ]

Mirage BD-35 troubleshooting - Mirage BD-35 2M/70CM RF amp high SWR, how to troubleshoot
[ Hits: 287 | Votes: 0 | Rating: 0 ]

Morserino-32 - Successor to the Metamorserino, this is a multi-functional Morse code machine (Keyer, Generator, Trainer) that includes also a transceiver using LoRa on the 70cm band.
[ Hits: 244 | Votes: 9 | Rating: 9 ]

435 plus 1296MHz ATF54143 Pre-amplifier - The prototype for this amplifier was originally designed for 70cm and was used on the 2004 3B9C Dx-pedition to Rodriguez Island for satellite and EME. It had a noise figure of 0.49dB with an associated gain of 20dB.
[ Hits: 336 | Votes: 0 | Rating: 0 ]

TVI Filters for 2m and 70cm - The TVI filters described in this page worked very well in curing a TVI problem on 2m abd 70cm
[ Hits: 371 | Votes: 1 | Rating: 10 ]

70cm Mini Transverter - A low cost, low power microwave transverter so that you can operate easily on 70cm band even with a HF or VHF transceiver
[ Hits: 394 | Votes: 0 | Rating: 0 ]