TX-Delay
--------
  Time since begin of data transmission. The TX-Delay depends on
  the time the own transceiver needs since his PLL locks and a clean
  signal is transmitted, plus the time the opposite station
  (digipeater) needs, since the signal is detected and decoded.
  The value has to be given in millisecons (10ms steps), different
  from e.g. terminal programms like SP or WinGT. The T-value of the
  TNC is given in 1/100 seconds (T20 = 200ms).

  Typical Values:
  ---------------
    normal tranceivers (for speech)            (1k2): 150-250ms
    modified and fast transceivers             (9k6): 100-150ms
    special data transceivers (T7F, K-Net)     (9k6):   20-50ms
    HighSpeed data transceivers               (>9k6):   10-20ms

Persistance
-----------
  Probability of transmission, normally between 0 (0%) 255 (<100%).
  Will be calculated at random every thime the modem should transmit.
  To give other users on a non-DAMA-digipeater a chance the
  persistance should be between 50 and 200 (better lower!).

Slot-Time
---------
  Waiting time the channel has to be unused. Has to be given in
  milliseconds (10ms steps) and should be at a high value in order
  to give other users a chance to transmit.
  Is the channel unsused vor the specified amount of time and data
  wait for transmission, the modem will transmit.

  Typical Values:
  ---------------
     1k2: 50-150ms
     9k6:  10-50ms
    >9k6:     10ms

Paclen
------
  Maximum lenght of a single packet in bytes. To get a low overhead
  of control data this value should be at 256. In the case of bad
  connections or temporary interference/jamming it may result in a
  better data transmission to reduce the value to 128 or even 64
  bytes, if the shorter packets will be received correct and
  uninterrupted.

MaxFrame
--------
  Maximum number of packets transmitted in one sequence. This value
  should be high to get a low overhead by the TX-Delay. This requires
  a collission and interference free connection.
  In case of a bad or interferred/jammed connection it may be an
  advantage to reduce MaxFrame to a value of 1 or 2 in order to
  reduce the number of retries.

IP
--
  IP-Number of the modem or device. Since kernel 2.2.x it must be
  given to administrate the network device at all. The IP should be
  applied for at the local IP administrator. If you have no valid
  IP and no TCP/IP is needed for the device you can use one of the
  free IPs of the segment 192.168.x.x. Remember that these IPs are
  not usable for TCP/IP over amateur radio!