
Chapter 5 Packet Operation
require
TXDELAY
to be increased. Experiment with the value to determine the shortest setting you can use in
reliably in packet.
Baudot and ASCII use
TXDELAY
to set the timespan between
PTT
ON
and the start of transmitted data.
TWRcv n
Default: 50
Host: Tr
n
0-100 adjusts how the DSP-232 manipulates amplitude of received signals on 1200 bps Packet.
Twist receive (TWRcv) allows you to compensate for poor signal reception by adjusting the amplitude of the high
tones. Entering values less than 50 allow you to lower the amplitude of the received signal’s high tone. Entering
values greater than 50 allow you to increase the amplitude of received signal’s high tone.
TWXmt n
Default: 50
Host: Tx
n
0-100 adjusts how the DSP-232 manipulates amplitude of transmitted signals on 1200 bps Packet.
Twist transmit (TWXmt) allows you to compensate for transmitter deficiencies by adjusting the amplitude of the
high tones. Entering values less than 50 allow you to lower the amplitude of the received signal’s high tone.
Entering values greater than 50 allow you to increase the amplitude of received signal’s high tone. This command
allows you to keep high and low signals at their proper levels on the air.
Unproto
call1
[VIA
call2
(,
call3
...
,
call9
)
]
Default:
CQ
Mode: packet
Host: UN
call1
Call to be placed in the “To” address field.
call2-9
Optional digipeater call list; up to eight calls.
UNPROTO
sets the digipeat and destination address fields of packets sent in the unconnected (unprotocol) mode.
Unconnected packets are sent as Unnumbered I-frames (UI frames) with the destination and digipeat fields taken
from
call1
through
call9
options. When a destination isn’t specified, unconnected packets are sent to
CQ
.
Unconnected packets sent from other packet stations can be monitored by setting
MONITOR
to a value greater than
“1” and setting
MFROM
to ALL.
The
UNPROTO
path and address is also used for beacon packets.
UPlink call1
Use the Uplink command to initiate a DAMA connection. After a connection is established, your station will be a
slave and will not send any information packets until it is polled by the Master.
You can type UPlink (without any parameters at any time while in Packet to check the DSP’s connect status. If
you’re in the process of trying to connect to another station, you’ll see the message:
Link state is: CONNECT in progress
If the other station doesn’t ack you connect request after the number of tries set with the RETRY, the connect
attempt is cancelled. You monitor would display:
cmd:***Retry count exceeded
***DUSCONNECTED:
call 1
5-46
September, 05
Summary of Contents for DSP-232
Page 120: ...Chapter 6 GPS Applications September 05 6 1...
Page 138: ...Chapter 7 Maildrop Operation 7 18 September 05...
Page 158: ......
Page 159: ...Chapter 8 ASCII and Baudot Operation September 05 8 1...
Page 185: ......
Page 186: ...Chapter 9 AMTOR Operation September 05 9 1...
Page 198: ......
Page 199: ...Chapter 10 Morse Operation September 05 10 1...
Page 207: ......
Page 208: ...Chapter 11 SIAM and NAVTEX Operation September 05 11 1...
Page 230: ......
Page 231: ...Chapter 12 PACTOR Operation September 05 12 1...
Page 240: ...Chapter 13 Troubleshooting September 05 13 9...
Page 254: ...Chapter 13 Troubleshooting 13 9...
Page 256: ...DSP 232 Manual Addendum September 05 AD 2...
Page 259: ...Appendix A Radio Connections Radio Connection Diagrams September 05 A 3...
Page 260: ...Appendix A Radio Connections A 4 September 05...
Page 261: ...Appendix A Radio Connections September 05 A 5...
Page 262: ...Appendix A Radio Connections A 6 September 05...
Page 263: ...Appendix A Radio Connections September 05 A 7...
Page 267: ...Appendix D Mailbox Upgrade September 05 D 2...
Page 268: ...Appendix E Schematics and Pictorial September 05 E 3...