Specifications

PK-900 Gateway Option Supplement

MHeard Immediate Command

Mode: Packet and AMTOR/PACTOR Maildrop Host: MH

The MHEARD display has been enhanced to support the “Nodes” command in the

gateway.

Previously, stations heard directly were displayed with an asterisk (“W1AW*”)

and digipeated stations were shown without (“W2SZ”). Digipeating isn’t used as

much as it used to be. Most stations now use nodes so this release discards

the asterisk. However, for those few cases in which a station is heard indi-

rectly through a digipeater, the station’s callsign is displayed with the

message, “via digi”.

In addition, I- and U-frame packets with PIDs of CF and CD are shown with the

indicators “N/R” (for Net/ROM) and “IP” respectively. AMTOR and PACTOR sta-

tions accessing the Maildrop or the gateway are shown in the MHEARD list with

an “AMTOR” or “PACTOR” indicator.

MId “n/n” Default: 0/0 (0 sec.)

Mode: Packet, AMTOR, PACTOR Host: Mi

Parameters:

“n” 0 to 250 specifies the Morse ID timing in units of 10-second intervals.

Morse ID now works in AMTOR and PACTOR modes on both ARQ and broadcast trans-

missions. At intervals you set, your TNC identifies itself in Morse Code while

maintaining the internal timing for AMTOR or PACTOR. Because of the nature of

these operating modes, the destination station will go into an error state

when your TNC sends a Morse ID, but it should recover data synchronization

immediately afterwards.

MOPtt ON|OFF Default: ON

Mode: Morse Host: Mo

Parameters:

ON Enables PTT in Morse transmit mode.

OFF Disables PTT in Morse transmit mode.

MOPTT controls the PTT output in Morse mode only. To enable PTT for Morse

transmissions, both XMITOK and MOPTT must be ON. XMITOK OFF still disables PTT

for all operating modes.

The most probable use of MOPTT is to disable PTT in Morse to allow full break-

in operation but enable PTT in all the other modes. Setting XMITOK ON and

MOPTT OFF accomplishes this.