Timewave DSP-232, Руководство по эксплуатации

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Chapter 5 Packet Operation
now. Once you’ve made this connection, enter
RADIO 1
or
RADIO 2
at the
cmd:
for the corresponding Radio
Port you’ll now use for practice runs.
Adjust squelch so the DCD light
just goes out. With your program and DSP up and running so the
cmd:
prompt is
at the ready, you’re now all set to have a thrilling monologue.
Connecting
In packet, when you want to chat with a station you “connect” to it; the abbreviation of connect is the letter,
C
. Go
ahead and connect to yourself by entering: C (your call). If your call happens to be KB6IUX, you’ll type:
cmd:
C KB6IUX
*** CONNECTED to KB6IUX
You’ve now gone from the Command mode to the Converse mode and the CON bar is lit on the DSP’s status
window. Go ahead and type a quick sentence, then press (
RETURN ). Your sentence will echo back at you, but if
you were the other station the echo you see is exactly what would appear on your screen. Type in another sentence
but as you press ( RETURN ) this time, watch the DSP’s front panel. The TX light and STA bar come on, the TX
light will extinguish, then a few moments later the TX light will come on briefly then both the CON and STA bars
will go out.
What’s happening here? It’s all part of packet’s error-checking scheme. When you pressed (
RETURN ), the TX
light came on because the DSP is keying up your transmitter and sending your packet to the other station. Once the
packet has been sent, the TX light goes out and your transmitter unkeys. The STA bar stays on because the DSP is
waiting for the packet you just sent to be acknowledged, or
ack ed, by the other station. After the other station
receives your packet and checks it over to see that it was received okay, it sends back a quick ack signal. When your
DSP receives the other station’s ack signal, it “ ack s the ack ” and your transmitter is momentarily keyed for this to
happen.
Leave the Converse mode by entering a (
CTRL-C
). Notice that the CON bar is lit because you’re still connected
with a station. When you enter a ( CTRL-C ) while you’re connected, you’ve essentially put the other station “on
hold” like you would with a telephone. You can go do anything that you can normally do while in the command
mode.
You have a couple of options now: you can either return to the Converse mode and continue chatting with the other
station, or you can disconnect—which ends the QSO. To go back to the QSO enter the letter
K —for “K”onverse—
next to the cmd: prompt. You’ll be put on a new line and will be able to type text or read what may have come up
on your screen in your absence from the QSO. While in the Command mode, if you decide to quit out of the
connection, enter the letter
D
, for Disconnect. In this example with KB6IUX, you’d see:
*** DISCONNECTED: KB6IUX
KB6IUX*>KB6IUX
(
UA
)
Congratulations! You performed the basic steps you need to initiate and end a basic packet contact. Try this exercise
a few more times until you feel comfortable with it. When you are, try the next few exercises before you go on-the-
air.
CTEXT
An optional step you might want to take right now is to enter a CTEXT message. CTEXT is like a telephone
answering machine message (up to 120 characters) that your DSP will send to a station immediately after it
connects to you. A good
CTEXT
message is something like this:
cmd:
CTEXT Hi, there! If I don’t respond in a few moments to your connect, please leave a
message in my mailbox, WO6P-1. Thanks! ( RETURN )
CText was
CText Hi, there! If I don’t respond in a few moments to your connect,
please leave a message in my mailbox, WO6P-1. Thanks!
cmd:
September, 05 5-7