javAPRSSrvr is an APRS-IS server based in Java. It runs on any platform
that supports Java 1.5.0 and above. It has been used extensively on
Windows (32 bit and 64 bit), Linux, FreeBSD Unix, and Mac OS X. It provides connectivity between
APRS clients, IGates, and other servers.
javAPRSSrvr has been designed to meet the current de facto specifications of
APRS-IS. Further information on those specifications can be found at
supports most types of ports available from other servers. It implements a
thorough packet processing algorithm causing clean AX.25 headers and unaltered
payloads to be sent to connected clients and serves. There are a number of
built-in safeguards that reduce or eliminate APRS-IS centric loops.
javAPRSSrvr supports server adjuncts which can provide any type of extra
processing on packets. APRSFilter is one adjunct that is implemented
that provides selective output to ports and allows users to define their own
data stream to receive.
javAPRSSrvr supports built-in clients which can provide a feed
directly into and from the server. APRSIGate is one adjunct that is implemented
which provides full IGate functionality with an open TNC interface. DBGate
populates a database with APRS activity. NSRDigi is a client that provides full AX.25 NSR digipeater
functionality that is not APRS-centric. Other clients are WhoIsGate, EmailGate, CQGate, Object Generator, and WxNow Generator.
A block diagram of the javAPRSSrvr architecture can be found here.
A detailed overview of javAPRSSrvr can be downloaded from here.
javAPRSSrvr is available free-of-charge to amateur radio operators for amateur radio use on a by-request basis from
Pete Loveall AE5PL. You must supply your full
name and licensed amateur radio callsign. Commercial versions are available upon request for a fee which includes full ongoing