最新更新的资料，100mhz的dsp芯片，其中新的强健壮性的rpr模式采用ofdm（正交频分复用技术）的8音psk调制方式。
the dsptnc is worldwide the first "terminal node controller” using a digital signal processor
(dsp) as protocol and as modem processor. the close relationship between the hardware
level and the higher protocol levels opens the possibility for unique applications, e.g the
implementation of high sophisticated multi-detectors (300 bd afsk), efficient implementation
of new modes which process complete data packets (robust-pr), as well as a generally
very high flexibility.
the dsptnc is equally usable as universal tnc for chat- and mail operation, as well as a
stand alone aprs1-position tracker.
1.1 particular features of the hardware:
• 100 mips dsp as cpu.
• optically decoupled usb-port, virtual baudrates 38400/115200 bd.
• generically very good hf-blocking (no selfmade qrm (hum)).
• metal housing.
• tcxo for highest stability of all signals.
• low current drain 15-90 ma (13.8 v), typically 50 ma, mode dependent.
• mini-din-connector, compatibel to the usual transceiver’s “packet connector“.
• quad-dip-switch for basic configuration.
• nmea-in, nmea-out (nmea-out not yet supported by firmware version 1.0).
• relais-switch-output: direct connection of a power relay to switch the tranceiver’s supply
power.
1.2 highlights of the operating system („bios“ und „firmware“):
• backwards compatible to „the firmware“ of the nork><link2 e. v.
the ax.25-kernel has in most parts been adopted from „the firmware“ (tnc2), with the
friendly authorisation of the nord><link e. v.
• operating modes (modulation, baudrate) and transmit levels are adjustable by software
commands, 300, 1200, 9600, 19200 bd-standard-modes & robust-pr are implemented.
• framecollector to increase the efficiency of the ax.25-protocol.
• dama-slave-protokoll implemented - dama especially on shortwave very useful.
• dynamic round-trip-timer.
• ded-hostmode (also xhost by dg3dbi), compatible to all common hostmode programs,
e. g. paxon, wpp, and so on.
• kiss/smack (compatible to all common kiss programs, e. g. ui-view).
• firmware upgrade via usb connection.
• permanent storing of all parameters possible.
• high reliability through the separation of the bios and underlaying application („firmware“).
