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- INTRODUCTION TO PACKET RADIO - PART 16 - by Larry Kenney, WB9LOZ
-
- In this article, let's do some reviewing. I'm going to present a short
- quiz on packet, covering the basics that I've presented in the past 15
- parts. Let's see how well you can answer the following questions without
- looking back at the past articles. In Part 17 I'll discuss each question
- and give you the correct answers.
-
- 1. What are the three TNC modes of communication?
- a. Connect, Converse, Terminal
- b. Command, Converse, Terminal
- c. Command, Converse, Transparent
- d. Command, Connect, Transparent
-
- 2. What TNC command is used to set the transmit path for beacons and CQs?
-
- 3. What is the TNC command CHECK used for?
-
- 4. While you're connected to another station, what command is used to
- monitor other traffic on the frequency?
-
- 5. If you saw one of the following lines on your screen when in monitor
- mode, what would the asterisk indicate?
- W6ABC-3>N6XYZ,W6PW-1*: Hi Bob
- W6ABC-3>W6PW-1*>N6XYZ: Hi Bob
- (Displays vary with various TNCs, so both common types are shown.)
-
- 6. Why does the packet node network improve communications?
-
- 7. If you're connected to a station in New Mexico using the node network,
- how do you disconnect?
-
- 8. If N6ZYX-2 connected to you via a node, what would the SSID of the
- station become at your end of the connection?
-
- 9. When you're connected to another station, what are the two most
- probable causes for packets not to be received by the other station?
-
- 10. There are several basic commands used on a packet bulletin board
- system. Indicate what you would enter to perform the following:
- a. Receive a list of messages.
- b. Download a file in the General (ID G) directory called
- FCCEXAMS.89.
- c. Enter a private message to Jim, WA6DDM, who uses the W6PW BBS
- in San Francisco, California.
- d. Read message 7134 with complete forwarding headers.
- e. Find out what stations have been heard by the BBS on port B.
-
- 11. To send an NTS message via packet addressed to Tom Smith, 123 Main
- Street, Keene, NH 03431, telephone (603) 555-4321, what would you
- enter at the BBS prompt?
-
- 12. If a message has a STATUS of BF, what does that indicate?
-
- 13. If you received a message from a friend in Chicago that had been
- forwarded to your home BBS through four other BBSs and the message
- had a Date/Time of 0316/2245 when you listed it, which of the
- following is a TRUE statement?
- a. The message was written at 2:45 pm on March 16.
- b. The message was entered into the BBS by your friend at 2245
- on March 16.
- c. The message was forwarded by your friend's BBS in Chicago at
- 2245 on March 16.
- d. The message was received at your home BBS at 2245 on March 16.
-
- 14. If you wanted to send a message to your friend John, W4IP, but you
- didn't know what the call of his home BBS was, what could you do to
- try and find out what the call is?
-
- 15. What is the maximum value for MAXFRAME? If you're working a station
- on 30 meters and are sending a lot of retries, should you increase or
- decrease MAXFRAME?
-
- Well, how did you think you did? We'll take a look at the answers to these
- questions and more in part 17.
-
- - - - -