Short Wave HF alternative to AIS.
MULTIPSK developer Patrick Lindecker has added a HF locator feature to his HAM programme which allows low cost very low power
TxRx (QRP) SDR units to provide position info to shore receivers. His developement is an upgrade of a system that has been used on the recent Gloden Globe Race
by some competitors, and follows the tracking
system used by HAM balloons for some decades now.
Patrick is at index
, and this is an extract from his recent email
The main improvements of MULTIPSK 4.48.2 are described below.
Aimed to mobile stations for long distance communications
, it is proposed 3 tracking
position beacons, each one using the pieces of information issued from a GPS
receiver. These beacons are listed below, from the less accurate in WSPR mode (but the more sensitive in reception) to the more accurate in EM mode.
The received positions can be displayed on a map. It is also displayed the distance between the receiver position and the transmitter one, in km or in miles.