Aprs documentation

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Aprs documentation

This documentation and most other files listed here are the work of bob bruninga, wb4apr

post 14 Feb 2025

APRS Software location information Links →

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APRS Tracker with 89C4051
aprs tracker with similar unction as tinytrack but using a at89c4051 or at89s4051 in ver 2 microcontroller

APRS Servers
listed below are all known to me aprs servers

Microsat APRS

Simple Rtty codec system based on arduino e android A unit for receiving Rtty transmissions was created, the differences are essentially limited to the Arduino software used

All band dipole Mk2 The All Band HF Doublet is often referred to as a random length dipole as it is generally as long as the available space within reason, but here are a couple of limitations to the ultimate dipole length

160M 1/4 Wave Vertical 160m vertical antenna project. It is 100' of Rohn 25G and a 20' aluminum stinger. The base is made out of four 6' power line insulators sandwiched between two Rohn base plates. 7/8' stainless bolts hold the assembly together. 32 radials 50' long and 30 radials 100'

DHD Double Half Delta This is a dhd double half delta in theory it should return a low signal but with a good s - n ratio roughly like a beverage

Visual CW Tuning Indicator Many transceivers set the CW transmit off-set equal to the set's sidetone frequency. But it was left to the operator how to match incoming signals to the sidetone for one-frequency QSOs an awkward and time-consuming procedure

Convert ADIF to Cabrillo Format Have an ADIF file from amateur radio contesting, but the contest you want to enter wants a Cabrillo-formatted file? This is the tool that you need

Trap Dipole 7, 10, 14, 18, 50 MHz Trap dipole 7-10-14-18-50mhz with balun coax cable

Diy Arduino CW keyer I added code to read push-buttons on digital pins to trigger hard-coded messages like CQ and CQ SOTA

Aprs documentation

Antennas Type