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• Mini Whip - Active HF Antenna - PA3DWC  ^new
  
  The author investigated electric field antennas and achieved promising results with a shortened active whip ...
  [ Hits: 72 | Votes: 1 | Rating: 10 ]

• LoRA Collinear Antenna - PH2LB
  
  A simple 6dBi Collinear Antenna for LoRa compared to the Lorank8 gateway default antenna ...
  [ Hits: 67 | Votes: 0 | Rating: 0 ]

• Antenna Manufacturing: How to Prevent Galvanic Corrosion - G0UIH
  
  Galvanic corrosion a destructive process triggered by dissimilar metal contact in a corrosive electrolyte poses ...
  [ Hits: 55 | Votes: 0 | Rating: 0 ]

• Chokes and Isolation Transformers for Receiving Antennas - K9YC
  
  Chokes and isolation transformers are essential for receiving antennas to mitigate common mode current which ...
  [ Hits: 60 | Votes: 1 | Rating: 9 ]

• Introduction to HF Packeteering in the Modern Age - N6CTA
  
  A brief overview of the current state of packet radio on the HF bands In ...
  [ Hits: 80 | Votes: 0 | Rating: 0 ]

• Fundamentals of Radio Waves Propagation - VE2XIP
  
  How radio signal get propagated throught the atmosphere the role of the ionosphere the thropospheric ...
  [ Hits: 97 | Votes: 4 | Rating: 7.75 ]

• HamDXMap - F5UII
  
  This dynamic DX Map aggregates various resources that will help radio amateurs to operate their ...
  [ Hits: 392 | Votes: 10 | Rating: 9.3 ]

• Yaesu FT-857 Repair: Tackling a Sense Wire Issue - M1GEO
  
  After owning the second hand radio for a few months it developed a sense wire ...
  [ Hits: 40 | Votes: 0 | Rating: 0 ]

• EiBi shortwave schedules - Eike Bierwirth
  
  The current EiBi shortwave radio schedules contains an update aggregated list of radio broadcasting stations ...
  [ Hits: 352 | Votes: 0 | Rating: 0 ]

• Building an Enhanced APRS IGate with Debian 12 and Raspberry Pi - WW8TF
  
  The guide outlines necessary components including a 2m FM analog radio USB audio adapter and ...
  [ Hits: 58 | Votes: 0 | Rating: 0 ]

• 432 MHz 100W RF Power Amplifier - VK3BRZ
  
  This article describes the construction of a 100 Watt 70 cm amateur band linear power ...
  [ Hits: 240 | Votes: 1 | Rating: 9 ]

• Analyzing SSB Signal Quality in CQ WW Contest - OH6LI
  
  This article investigates SSB signal quality during the CQ WW 2015 SSB contest It highlights ...
  [ Hits: 42 | Votes: 0 | Rating: 0 ]

• APRS via LoRa - lora-aprs
  
  Website maintained by a group of amateur radio operators who would like to bring APRS ...
  [ Hits: 51 | Votes: 0 | Rating: 0 ]
• LoRA Gateway IdeeTron Lorank8 - PH2LB
  
  Testing IdeeTron Lorank8 for LoRaWAN with ham radio transmissions Assessing compatibility interference and planning permanent ...
  [ Hits: 19 | Votes: 0 | Rating: 0 ]
• APRS LoRa Weather Station - TK5EP
  
  The weather station described here uses a TTGO v3 1 6 2 module and various ...
  [ Hits: 109 | Votes: 0 | Rating: 0 ]
• LoRa APRS Tracker or Igate on 433Mhz - ZR6AIC
  
  Setting up a Lora APRS tracker using the ESP32 Lora32 TTGO T T Beam 433 ...
  [ Hits: 81 | Votes: 0 | Rating: 0 ]

• TxTopper QRP Amplifier - w5usj
  
  TX Topper 5 Watt plus Amplifier with Adjustable Gate Bias
  [ Hits: 67 | Votes: 0 | Rating: 0 ]

• Solar Panel and Ham Radio - K1KP
  
  If you are having problems with RFI from Solar Panels this document from QST provides ...
  [ Hits: 88 | Votes: 0 | Rating: 0 ]

• LoRa-APRS-iGate - iot4pi
  
  he LoRa APRS iGate was developed in cooperation with the Austrian HAM Radio Association With ...
  [ Hits: 78 | Votes: 0 | Rating: 0 ]

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