P A C K E T   R A D I O

By KK5YP
Roy G. Costlow

Glossary/Dictionary


AX - The protocol used such as AX25 enabling stations
     to communicate with each other.

APRS - Amateur Packet Reporting System.

BAUD - The rate of speed information flows.
       common speeds = 300 | 400 | 600 | 1200 | 9600

BEACON - An automatic UNPROTO transmition sent out on
         a time schedule which diseminates information.
         Usually information pertaining to the station
         it is comming from or SERVERE WEATHER ALERTS.
       
BOOTLEG - a liable falsehood or illegal action.

BOOTLEGGER - Someone who uses a callsign or ALIAS that they are
             not allowed to use according to law, or someone using
             a frequency that they are not supposed to be on
             according to law.

ABAUD - RS232 terminal baud rate.

BBS - Bulletin Board System. Generally used to Diseminate Current Information
                             which pertains to all amateur radio operators or
                             operators in specific regions. A BBS is more of a
                             library for legal amateur radio operators of the
                             community it is located in, to post bulletins and
                             to send and recieve messages in other regions of
                             the world or into other neighboring communities.
                             When a BBS shares its information with another BBS
                             the information is usually readable but not defined
                             in useful information by those who are reading the
                             transmitions while watching in unproto mode.
                             The reason for the information to be diseminated in
                             programming language is so that large quantities of
                             information can be sent at a faster rate of speed
                             without having to change the baud rates and to comply
                             with other BBS standards. Some BBS stations also
                             have a NODE and sometimes even provide a CHATROOM.

Note: There are many NODE, SWITCH and SYSTEM OPERATORS who do not allow DXing
      a distant BBS across their NODE, SWITCH, or NETWORK SYSTEM. This is
      usually due to the high rate of traffic and the amounts of information that
      most BBS's have to offer, which is usually the same information of other
      neighboring community BBS stations. In the event that a neighboring community
      does not have its own BBS, it is best to ask permission of the NODE OPERATOR,
      SWITCH OPERATOR, BBS OPERATOR and SYSTEM OPERATOR, whichever is used, if it is
      ok with them to access a BBS through their station(s). The BBS operator is also
      responsible for asking the same permissions if a node or switch is needed to
      pass the information across.
           

CHECKSUM - A program module used to evaluate wheather or not the whole signal
           from a connected station is being recieved or lost.

COMMAND MODE - A local command which allows a staion operator control of all menu
               functions within the software of a packet program or control of most
               of the information within a terminal modem unit connected between a
               radio and a computer.

CONVERSE MODE - A local command which permits conversation with another
                staion or stations.

CTEXT - The text that a user can see upon connecting
        direct to a station. *CONNECT TEXT

Digipeater - Part of a station that works similar to
             a repeater by retransmitting the signal
             of a different station to either another
             station in the distance or to all stations
             who are watching in unproto mode. If the
             digipeater fails to hear a signal it has no
             way to tell if the signal was even sent.
             It does not use the checksum module for
             for unproto packets. Digipeaters can be
             turned on or off by the owner. 

DUMMY LOAD - An artificial antenna which has the correct
             impedance to transmit signals into so not to
             disrupt others with unwanted transmitter
             testing over the airways.

DX - Distant.

FIREWALL - A program used to block unwanted users from gaining access
           to unauthorized connections.

FPAC - A software program used by some of the TCP/IP
       stations in networks such as the Rose Network.
       FPAC stations are not compatible
       with APRS stations due to some APRS stations using all
       8 digipeater fields, which is a conflict of
       interest in the amateur packet world. Since there is a
       problem with APRS signals being sent on the same
       frequency as the switch networks, APRS users have
       switched to a frequency that is different
       than that of switch frequencies.
       

HBAUD - The Baud rate used between Station To Station.

HF - High Frequency

HTEXT - Routing text used for packet mail servers.
        *HYPERTEXT

IP - Internet Protocol

LEGAL LIMIT - The maximum legal RF POWER LIMIT permitted by
              the class license a licensed radio operator
              holds and is allowed to use.

LX - Local.

NODE - A program module either software or IC chip 
       programmed to make it possible for the owner
       operator of a station to let other stations
       connect to his/her station on a different port
       than the stations mailbox or direct connect port.
       Usually an independant port with its own menu,
       which permits users to connect to it, and lets
       them connect to a distant station or another *NODE.
       Most nodes use a checksum module to make sure each
       packet that it recieves, is recieved and sent complete
       to the other station(s).

  Notes: *similar to a digipeater.
       Nodes can be turned on or off by the owner.

NODE HOPPING - A term used to define a user jumping from
               one node to another which is legal and
               fun. Although some NODE OPERATORs may
               frown at users taking advantage of the
               service they provide, it makes sense to
               learn where the system can lead to. This
               opportunity makes it possible for the
               users to learn new routes and how to get
               to places where normal transmitions that
               are not using nodes cannot normally reach.
               It is more commonly frowned upon when a
               NODE OPERATOR discriminates against this
               method of learning the NODE SYSTEM.
               NODE OPERATORS are responsible for the
               information that is passed through their
               station and even more so when their NODE is
               a CROSS-FREQUENCY NODE or CROSS-BAND NODE.
               Using a node to disseminate hate mail or
               messages that the recipient believes is offensive
               in content, holds the node operator partly
               responsible but not totally liable for letting the
               station sending such disruptive messages.
               The station sending such messages is totally
               liable for their own actions. Usually resulting
               in the node operator and the recipients both
               blocking the user that sends such mail from
               gaining access to their staions. SWITCH OPERATORS
               may notice disruptive content passing through a
               node and totally block the node from being accessed
               from the SWITCH. NODE OPERATORS may see the content
               passing through a SWITCH and decide to block the
               SWITCH from gaining access to the NODE. This happens
               most often when the stations operating nodes and switches
               do not provide a mailbox or a means of communicating
               directly with one another. Even leaving a current telephone
               number somewhere within the CTEXT of the node or
               within the INFO section of the switch where the
               node or switch operator can be reached is acceptable.
               (also a *working e-Mail address is acceptable).

NODE OPERATOR - A radio station owner who's callsign or alias represents
                the name of the node they create.

NODE USER - A legal station using another station operators node.

NOS - Node Operating System. There are lots of kinds
      of NOS such as JNOS and TNOS which seem to be
      the most popular in the amateur world. Most of
      todays NOS is compiled using Bourland C programming
      techniques.


PBBS - Private Bulletin Board System. (a private packet mailbox).

PEP - Peak Envelope Power.

PROTO - A connected mode of a station to station information exchange.
        If the MCON command is turned it is possible to monitor other
        stations, nodes, digipeaters and switches while being connected.
        Although sometimes busy frequencies make it not so easy to see
        the text being sent by a desired station that is directly connected.
        this mode uses an end-to-end checksum.

PTEXT - Text that is seen upon connecting to a mailbox. *PBBS TEXT

QRP - A Q-code signal that represents a station is 
      using the *lowest output power possible to
      establish contact with another station.
Note: *This method of transmitting is
      actually not acceptable on packet frequencies
      because it causes packet crashes for other
      stations sharing the same frequency.
      Using the highest legal power setting available
      is recomended. (but not a requirement)
      If a low power station is to be used, it is acceptable
      to use a near by high powered "NODE, DIGIPEATER or SWITCH" to
      make a connect to another staion or to send a BEACON 
      so not to disrupt the signals sent by others using the
      same frequency.


RF - Radio Frequency.

RF BURN - Similar to a sunburn but more like being cooked
          in a microwave oven. Caused by being over exposed to
          to radio signals in the near field of a transmitting
          antenna or RF leakage from a transmitter itself.
          A very serious threat to humans which in many cases
          can cause death. 

ROUTE - A path of stations that pass information for
        distantstations that cannot connect to each
        other direct.

RS232 PORT - A port on a computer or a terminal modem unit.
             usually found on the back of a computer.

RTEXT - Text used to gain remote access.
        *REMOTE TEXT

RX - Recieve.

SWITCH - Part of a network station that responds similar
         to a node but only a switch uses a different
         type of software (JNOS) which uses a code similar to
         the telephone companies numbers. As each switch is
         assigned a different number for the particular
         area it is designated in. Most switches can
         locate each other by using a domain file.
         Users of the switch can connect to other stations
         near another switch in a different part of the
         world. In most cases a switch is used by a
         network that provides a TCP/IP mailbox. But
         Not all networks provide a mailbox.
         The approximate location of a switch can
         usually be found by connecting to INFO via
         the switch callsign-#,###### ...
         
SWITCH OPERATOR - The owner of a switch who's callsign or alias
                  represents the name of the SWITCH.

TCP - Telnet Control Protocol.

UHF - Ultra High Frequency.

UNPROTO - An unconnected mode that is used for stations to communicate by
          exchanging information that every other packet station in the general
          area of a group of stations can see if they are also monitoring
          unproto on the same frequency.
          This is the eyes and ears of packet. Even if two stations
          are communicating in PROTO mode, it is still possible for other
          users in the same general area to see PROTO information being exchanged
          by those who are connected. There is no encryption involved to prohibit
          other amateur packet stations from seeing the information being passed
          amateurs who's packet units are connected.
          this particular mode does not use a checksum.

VHF - Very High Frequency.

WORKING e-Mail ADDRESS - An e-Mail address that corresponds to a person
                         or persons where they can send and recieve an e-Mail
                         but NOT a false e-Mail address.

WWCONV - World Wide Converse.

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Last Updated By KK5YP Wednesday June 21, 2000