ham ban 70cm

ham ban 70cm

Categories

Antennas : 70cm

• 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: 3547 | Votes: 3 | Rating: 8 ]

• Build a twin-lead Lindenblad Antenna for 70cm and 2m - This document contains the detailed instructions to build a homemade lindenblad antenna using a twin-lead as dipole elements. This document contains 9 pages and includes a detailed construction sequence and some drawings to build this antenna for UHF and VHF ham radio bands
  [ Hits: 1279 | Votes: 3 | Rating: 8.67 ]

• Mighty Woof 2m 70cm Dual Band Fan Dipole - This article describes a unique copper pipe fan dipole that the author home made and that provides fantastic results.
  [ Hits: 563 | Votes: 6 | Rating: 7.17 ]

• 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 ]
• 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 ]