online

618 links - and 7 categories

The Antenna Torque Calculator - This unique online tool helps Ham Radio operators to choose the right rotator for medium and large HF antenna systems. The algorithm implemented in this calculator is the result of 40 years of experience in the HF Antenna sector. Given the Wind Speed, the total antenna square area, and the boom length, it will return the calculated torque value.
[ Hits: 181 | Votes: 1 | Rating: 1 ]
3 element Yagi Antenna On-line Caluclator - This article includes an online calculator for a 3 element Yagi Antenna. The formula and basics theory of Yagi Antenna are also explained with examples.
[ Hits: 838 | Votes: 19 | Rating: 4.59 ]

DL7AHW Spraycan EH Antennas - Hairspray-can EH Antennas for shortwave and online programs. Small magnetic (H) antennas (Loops) have a good efficiency for the upper bands (20/15/10 meter band) and also in contrast to E-antenna a defined radiation direction.
[ Hits: 316 | Votes: 2 | Rating: 8.5 ]

Score Distributor - Ham Radio Contest Score Forwarder - Distributing contest scores in real time to online scoreboards. he score distributor automatically forwards any score data it receives from contest logging software to the following online scoreboards: Contest Online ScoreBoard (COSB by VA2WA,K2BB,K5ZD) Live Contest Score Server (by R4WW)
[ Hits: 120 | Votes: 0 | Rating: 0 ]

North Korea - P5/4L4FN - P5/4L4FN ED operations from North Korea from Pyongyang, DPRK 2001-2002, includes statistics and online log
[ Hits: 281 | Votes: 0 | Rating: 0 ]

E31A Log Online - Eritrea E31A DX pedidtion online log by Clublog
[ Hits: 148 | Votes: 0 | Rating: 0 ]
1A0C Online Log - 2019 - Log Online of the DX-Pedition to The Order of Malta's Italian Relief Corps (CISOM)
[ Hits: 267 | Votes: 2 | Rating: 5.5 ]
EX0QP Log Online - Online Log of the Polish DXpedition to Kyrgyzstan - EX0QP 2019 via clublog
[ Hits: 123 | Votes: 0 | Rating: 0 ]

Amateur Radio - State of the Hobby - Survery - Annual poll for radio amateurs - the good, the bad, the ugly! This is an annual survey conducted among the online community, and it represents the status of amateur radio. The authors ask to hams several questions, from the most used operating modes, to the typical ham radio lifestyle habits.
[ Hits: 263 | Votes: 3 | Rating: 5.67 ]

CW QSO Trainer - This online web application allows you to train the decoding of Morse code by copying random QSO sentences that can be looped or even mixed.
[ Hits: 173 | Votes: 7 | Rating: 6.5 ]

QRPparts - Online NOS electronic parts shop for QRP-QRPp radio constructors, to vintage radio and electrical measuring equipment restaurators. Many Germanium diodes, transistors and RF parts, semiconductors.
[ Hits: 247 | Votes: 1 | Rating: 10 ]

TelTad Online Shop - TelTad is a Polish amateur radio dealer with an online shop. Products offered includes all major ham radio brands, Yaesu Icom Kenwood, Alpin, OM Power, VPA systems Antennas
[ Hits: 193 | Votes: 0 | Rating: 0 ]

Signal Stuff - Amateur radio parts and accessories online shop, born to support hamstudy.org and examtools.org offer super elastic signa stic antennas, sma connectors and other small parts.
[ Hits: 134 | Votes: 0 | Rating: 0 ]

APRS Online Passcode Generator - Generate APRS Passcode using PHP for use in Amateur Radio APRS Applications when connecting to the APRS-IS Network
[ Hits: 243 | Votes: 0 | Rating: 0 ]

Online Helical Coil Calculator - This online calculator will give as output the Inductance L of a coil, including the total lenght of the wire needed to wound the coil. As input, requires the Diameter, number of turns, wire diameter and turn spacing
[ Hits: 342 | Votes: 7 | Rating: 5.71 ]
Online Coil Inductance Calculator - This online calculator will return the inductance of a coil. It will ask you the total number of turns, the total diameter of the coil and its lenght, from the first winding to the last. Obtaining the correct inductance in winding a coil can be easy if you already know how many turns are needed. Available in inched and centimeters,
[ Hits: 104 | Votes: 0 | Rating: 0 ]

GridMapper WG7J - Upload an ADIF fiel and plot all worked grids in an online map. Support filtering by band, year and can export the output directly into a google map, or a google earth KML file
[ Hits: 363 | Votes: 6 | Rating: 6.83 ]

MorseTeacher MorseMachine On-Line - Learn morse code with this online version of the popular morse machine. This version is currently working on Chrome browser only. This program teaches you to receive Morse code. It starts with a few letters and adds more when it sees that you are ready.
[ Hits: 175 | Votes: 3 | Rating: 8.33 ]

Coax Loss Calculator Online by K5VR - RF Feedline (Coax and Ladder-Line) Loss and ERP Calculators made with Javascript. This complex feddline loss calculator has already several line types paramenters for most common coaxial cables from Belden, Time LMR, Wireman and other common products. Result will give Matches loss, SWR loss, dB and Watts power loss.
[ Hits: 251 | Votes: 2 | Rating: 5 ]
Coax Cable Attenuation and Power Handling Online Calculator - An on-line coaxial cable attenuation and total power handling calculator, with a lot of cable properties already configured to give the Nominal Attenuation, Maximum Cable Assembly Insertion Loss, Average Power, Cable Vg anf Nominal Td
[ Hits: 229 | Votes: 2 | Rating: 2 ]