70cm band

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70cm band

36 links - and 1 categories

Antennas : 6M Antennas : 70cm
  • Bazooka dipole 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.
    [ Hits: 16547 | Votes: 30 | Rating: 6.67 ]
  • Portable 70cm Quadruple Quad Beam - 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.
    [ Hits: 3545 | Votes: 3 | Rating: 8 ]
Antennas : J-Pole
  • 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: 2278 | Votes: 17 | Rating: 6.83 ]
Antennas : Mobile
  • Twoband-Antenna for HT - Homebrew a 2m/70cm portable or mobile whip antenna for your HT or mobile radio
    [ Hits: 2927 | Votes: 2 | Rating: 5.5 ]
Antennas : Moxon
  • 70cm Moxon Beam - A moxon antenna project for 70 cm band, test and results of this popular antenna model applies to UHF bands.
    [ Hits: 1731 | Votes: 9 | Rating: 6.34 ]
Antennas : Satellite
  • Double Lazy H 435 MHz 10,8 dBd antenna - Drawings and pictures of compact antenna for 70cm band by LY2SS
    [ Hits: 2686 | Votes: 8 | Rating: 5.76 ]
  • Dual Band Satellite Yagi - The antenna is a VHF side is a 2m moxon, tuned on 145.825 MHz. The driven element of the moxon couples to a driven element for a 5 element 70cms Yagi, tuned on 436.5 MHz.
    [ Hits: 1199 | Votes: 2 | Rating: 8.5 ]
Antennas : Theory Antennas : VHF UHF
  • VHF/UHF Yagi Antenna Design  pop - Design your VHF UHF Yagi antenna online, a JavaScript enhanced web page that implements the design of an antenna for 2m and 70cm bands. This page offers a streamlined experience for Yagi antenna design enthusiasts. It assumes prior knowledge of Yagi design principles, minimizing distractions with a user-friendly interface. Equipped with essential equations, it provides instant design feedback. Red font warnings indicate design limitations, ensuring practical results. Constraints include Gain (11.8-21.6 dBd) and Boom Length (2.2-39 wavelengths), with additional frequency-dependent restrictions noted in input fields.
    [ Hits: 147401 | Votes: 1105 | Rating: 6.95 ]
  • Vertical antenna for 2 mt and 70cm  pop - How to Build a Dual-Band Antenna for 2M/70cm presentation PDF file
    [ Hits: 28702 | Votes: 49 | Rating: 6.26 ]
  • Compact and effective 2m 70cm antenna - Antenna was designed for SO-50 satellite operation but can be used for any VHF/UHF activity. It's a mix of a Moxon Antenna and a Yagi antenna. It has gains 4 dBd on 2m and 6.5 dBd on 70cm bands and it is fed via single 50 Ohm cable.
    [ Hits: 2575 | Votes: 1 | Rating: 10 ]
  • 13 elements VHF UHF Yagi - Yagi with 5 Elements on 2 m, 8 Elements on 70cm and one Feedpoint by DK7ZB
    [ Hits: 875 | 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: 1689 | 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: 752 | Votes: 4 | Rating: 5.75 ]
DX Resources : Beacons
  • VHF UHF European Beacons - MMMonVHF maintains the data for 6m, 2m, 70cm and 23cm bands in collaboration to LA0BY. This site allow display of a beacon map and latest beacon spots.
    [ Hits: 2681 | Votes: 11 | Rating: 5.91 ]
Operating Modes : NPR New Packet Radio
  • NPR New Packet Radio - IP over 430 MHz - NPR (New Packet Radio) is a custom amateur radio digital protocol, designed by F4HDK to transport bidirectional IP trafic over radio links on the 70cm band. This IP protocol is optimized for point-to-multipoint topology, with the help of managed-TDMA. Bitrate is up to 500kbps. Home Made modem has a built-in ethernet port to connect to PC. To boost power a DMR amplifier is required to reach 20W. This project is an extension of HSMM - Hamnet - AREDN networks
    [ Hits: 151 | Votes: 0 | Rating: 0 ]
Software : Macintosh
  • SkookumLogger - SkookumLogger is a free contest logging program for Mac OS X 10.7 or later, supporting CW and SSB events on the six HF contest bands plus 6m, 4m, 2m, and 70cm
    [ Hits: 608 | Votes: 0 | Rating: 0 ]
Technical Reference : Duplexers
  • Diplexer 2m 70cm - This DIPLEXER separates 2m from 70cm on the same coax cable, and allows to use 2 antennas over the same cable and permits transmission on one band and simultaneous receiption on the other band by hb9abx
    [ Hits: 3789 | Votes: 12 | Rating: 7.75 ]

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