14 mhz ring

14 mhz ring

Antennas : 2M

• 144 MHz 5/8 whip antenna - Making your own 2 metre (146 MHz) 5/8th wave whip antenna
  [ Hits: 7241 | Votes: 29 | Rating: 6.65 ]
• 2 Meter Whip Antenna - Making your own 2 metre (146 MHz) 5/8th wave whip antenna
  [ Hits: 1711 | Votes: 3 | Rating: 5.67 ]
• Homebrew 5 Element VHF Yagi-Uda - A project for a home made 5 element yagi-uda antenna for 2 meters, covering 144-148 MHz band by N1BMX
  [ Hits: 1627 | Votes: 4 | Rating: 5.75 ]
• Super Trombone Antenna - Tombone VHF antenna for 146 MHz ad designed by YB8EIP
  [ Hits: 2745 | Votes: 8 | Rating: 5.75 ]
• Make your own 2 metre 5/8 whip antenna - This article is about a home made project of a whip antenna for 2 meters band. Includes lenght of whip for all frequencies from 140 MHz to 151 MHz both in mm and inches
  [ Hits: 386 | Votes: 1 | Rating: 5 ]

• Dual Band J Pole - Dual band J pole operational over the entire 6Mtr band (50 - 54MHz) and the entire 2Mtr band (144 - 148MHz), slightly favouring the upper half of both bands by VK6YSF
  [ Hits: 4099 | Votes: 7 | Rating: 5.71 ]

• Multiband Trap-style Inverted-V Antenna - Trap-style Inverted-V Antenna for 3.5, 7, 14, 21 & 28 MHz
  [ Hits: 851 | Votes: 1 | Rating: 1 ]

• RF Choke with Bifilar Windings - This article presents an RF Choke featuring an 11-bifilar turn winding of #14 house wire on a Fair-rite FT240-31 toroid. The choke is enclosed in a 3D-printed case from Thingiverse, though this may pose thermal concerns at higher power levels. With SWR concerns up to 30MHz, the author plans to employ two series chokes at the rig input for improved performance. This choke offers versatility for portable use, with potential mismatch resolution using an antenna tuner. Further testing is anticipated upon the arrival of new cables.
  [ Hits: 86 | Votes: 0 | Rating: 0 ]

• Helical Antennas for 144 MHz - This article is about two excellent small helical antennas for the two meters band. With performance close to that of full sized antennas, these small helical antennas are low in profile but high in efficiency.
  [ Hits: 230 | Votes: 1 | Rating: 7 ]

• J-Pole Construction Drawings - Complete plan for making a 2-meter J-Pole antenna. This drawing in PDF File includes a detailed list of the parts needed to assemble the Jpole antenna for 144 MHz.
  [ Hits: 256 | Votes: 3 | Rating: 4 ]

• An Unusual Magnetic Antenna - This article by OK1FOU describes how to build a relatively small loop antenna which can be placed for instance at the balcony. It is especially suitable for a two band antenna covering two adjacent amateur radio bands (10/14 MHz, 14/18, etc.)
  [ Hits: 3057 | Votes: 1 | Rating: 1 ]

• Double BiQuad Antenna for 2.6 GHz - This is basic instructions for homemade 4G Antenna working on 2600 MHz UMTS featuring 13 14 dBi gain. This antenna is desigend to resonate on microwave frequencies in two segments from 2500 to 2570 MHz for Uplink, and from 2620 to 2690 MHz for Downlink.
  [ Hits: 85 | Votes: 0 | Rating: 0 ]

• Efficient 2-Element Quad Antenna for 2m - A detailed guide presents a simple 2-element quad antenna for 2m, offering ease of construction, portability, and efficient performance across the 144-148 MHz band. The design allows quick disassembly for storage and features adjustable polarization, making it ideal for various applications, including transmitter hunting and SSB operations.
  [ Hits: 62 | Votes: 0 | Rating: 0 ]

• VHF UHF Coaxial Dipole Antenna - A base station antenna you can easily build for 146,220 or 440 MHz, with performance similar to a J-pole but smaller and less obstrusive
  [ Hits: 2931 | Votes: 15 | Rating: 5.55 ]

• Decoding Russian Meteor-M2 satellite images in real time - The Meteor-M N2 is a polar orbiting Russian weather satellite that was launched on July 8, 2014. Its main missions are weather forecasting, climate change monitoring, sea water monitoring/forecasting and space weather analysis/prediction. Meteor-M N2 transmits images using the digital LRPT protocol at around 137.1 MHz with can be received with an RTL-SDR.
  [ Hits: 200 | Votes: 0 | Rating: 0 ]

• Repairing a TE-Systems 1452G - Slides of a TE systems 1452 reparation including the schematic diagram of this monoband VHF RF Power amplifier
  [ Hits: 488 | Votes: 4 | Rating: 7.25 ]

• Baofeng UV-3R Low pass Filter Mod - This page describes a fix to the Low Pass Filter that provides more filtering of the second harmonic of 144-148 MHz.
  [ Hits: 1386 | Votes: 3 | Rating: 5 ]

• Homebrew a High Performance SSB RTX for 14 MHz - This article describes the construction of a high performance transmitter and receiver for SSB (voice) communication covering the 14MHz (20 meters) high frequency amateur radio band with output range 15 to 20 watts and a top audio sound quality both on transmit and receive.
  [ Hits: 346 | Votes: 5 | Rating: 7.8 ]

• Experimental HF 6-band SSB transceiver - An SSB radio for the HF bands will be presented. Featuring 12 to 20 Watts of output power (depending on DC supply), full DDS frequency generation, covering 6 major frequency bands (1.8, 3.5, 7, 14, 21 and 28 MHz) within the short wave amateur radio spectrum. The rig also features colored LCD and front panel backlight.
  [ Hits: 709 | Votes: 14 | Rating: 9.86 ]