MHEARD

Command

MHEARD -- List recently heard stations.

Synopsis

MH <portnum>

Availability

The MHEARD command is available to all users.

Description

If the facility is enabled on the specified port, the MHEARD command lists the most recently heard stations on that port, along with the date / time of reception, the number of frames heard, and various other information (see below).

This is useful for users to discover who else the router can hear, to aid the search for suitable digipeaters, and to diagnose problems. Even on linking-only ports, where there is only usually one partner, it provides a useful indication when the frequency is being encroached, either by deliberate squatting, unauthorised attempts to link, or lift conditions.

The command may be abbreviated to "MH".

Example

MH 3 gives a heard list for port 3....

   G8PZT:KIDDER} Heard list for port 3:
   Callsign  Date  Time Frames  Via     Type  Position  Dist Dir
   G1LOA-10  09/06 13:42   309          DNIA  5221.51N... 13  24     
   G3TQG-2   09/06 13:19   599          D
   GB7PZT-15 09/06 13:18   708
   DY25      09/06 10:19   4    GB7DY-1  N

Date     - Date when this callsign was last heard.
Time     - Time when this callsign was last heard.
Frames   - Total no. of frames heard from this callsign.
Via      - Digipeater relaying this station, direct if blank.
Type     - Flags as follows:
             D - This station is a digipeater
             N - This station is a node
             I - This station handles IP traffic
             A - This station handles ARP traffic
Position - Position derived from APRS broadcast
Dist     - Distance calculated from APRS broadcast
Dir      - Bearing in degrees, calculated from APRS broadcast

Files

For each port, the MH facility can be enabled / disabled and the maximum length of the list specified by appropriate entries in the PORT sections of the XROUTER.CFG file, for example:

	"MHEARD=15" - Sets MH list size 15
	"MHEARD=0"  - Disables MH list

See also

MHEARD(9) -- "Monitor Heard".
XROUTER.CFG(8) -- Main Configuration File.