©1999 Hamtronics, Inc.; Hilton NY; USA. All rights reserved. Hamtronics is a registered trademark. Revised: 4/29/04
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Cw Tone.
The cw tone - lower/higher pair of
commands allows adjustment of the
tone used for cw id and cw status
messages to one of the following
frequencies: 400, 500, 667, 1000, or
2000 Hz.
Beep Delay.
The length of time between squelch
dropping and the courtesy beep,
which provides a time for someone to
break in after a user drops his carrier,
is adjustable with the beep delay -
longer/shorter pair of commands.
The allowable range is 0 to 5.0
seconds in half-second increments.
Tail Length.
The period between the courtesy
beep and when the repeater carrier
drops if no one is transmitting is ad-
justable with the tail length -
longer/shorter pair of commands.
The allowable range is 0 to 10.0
seconds, and the increment of
adjustment is one second.
(Fractional values are allowed in
the value originally specified on the
Questionnaire for the default in the
EPROM to allow for fractional
amounts; however, it would take a
large number of incremental changes
to make much difference for touch
tone settings if the program used such
small increments for touch tone
alteration of the value.)
Normally, you want the tail to be
long enough so that the repeater
carrier only drops at the end of a qso,
allowing plenty of time for a user to
key his mike if he wants to continue
using the repeater.
Courtesy Beep Type.
The courtesy beep type -
higher/lower command pair allows
selection of the type of courtesy beep
normally used as follows. Types are
numbered from 0 to 6. (Actually,
there is another type which sounds
like a siren; but this type is only used
if the alarm circuit is tripped.)
Otherwise, the courtesy beep will be
one of the normal 7 types (0-6) as
follows.
0 is no courtesy beep tone
(disabled).
1 is a 500 Hz tone.
2 is a 666 Hz tone.
3 is a 1000 Hz tone.
4 is a 2000 Hz tone.
5 is a pleasant musical burst se-
quence of tones ranging from 2000 Hz
down to 333 Hz. The whole burst is
only 300 milliseconds long, so it is
similar to a beep except that the
frequency sweeps during the beep.
6 is a similar burst of tones
ranging from 333 up to 2000 Hz.
You can compare types 5 and 6 by
using the test pretty tones command.
Time Out Timer.
The time-out timer is not
adjustable in the field, as such, but
several customers have asked for a
way to disable the timer to allow
extended transmissions without a
break to reset the timer. Although
you should avoid leaving it set in this
mode during normal operation, you
can accomplish this by using the Set
Long Timeout command (normally
"701#"). This sets the length of the
time-out timer to 25.5 minutes. In
order to reset it to the normal time
(usually 3 minutes), use the Reboot
Microprocessor - Reset to Defaults
command (normally "702#").
TEST FEATURES.
The following five pairs of com-
mands allow testing of the repeater.
You may not find applications where
these help you, but we use them at
the factory and thought they might be
helpful.
The test cw command forces the
cwid. When you use this command,
remember that since the owner
command (password) is disabled
whenever the cwid runs, you will need
to re-send the owner command enable
password again before you can make
further changes requiring the
password
The test carrier command locks
the transmitter on the air for a period
of 10 seconds with no modulation.
The test xxx-Hz commands lock
the transmitter on the air for a period
of 10 seconds and provide tone
modulation at tone frequencies of 250,
500, 1000, and 2000 Hz. The 1000
Hz tone is especially useful to allow
setting the deviation of the transmitter
for id, beep, and other tones the
computer transmits during operation.
The ringtone command forces the
ringtone generator, which normally is
heard only if the phone rings while the
reverse autopatch option is active.
The test pretty tones command
forces both types of multi-tone
courtesy beeps with a pause between
them. If you have a service monitor, it
is handy to trigger this service
function and observe the change in
deviation level over the entire range of
audio tones from 333 to 2000 Hz.
The test watchdog function tests
the watchdog timer in the computer.
Any computer can get out of sync due
to a transient of some sort or even due
to a bug in programming triggered by
some obscure sequence of events.
This is called "crashing". When this
happens, the computer wanders off
into some uncharted sequence, no
longer following the program as
written. If you have a computer, you
know what crashing is. To restore
operation, the repeater has a
"watchdog timer", which is a circuit
which must be triggered periodically
by a procedure in the main program
of the computer. If the computer fails
to trigger this hardware circuit at least
every 10 seconds, the timer reboots
the computer. The test watchdog
function tests the watchdog timer
circuit by deliberately putting the
computer in an endless loop, which
locks it up. After 10 seconds, the
computer should automatically reboot
and allow normal operation to
resume.
REBOOTING COMPUTER.
The reboot microprocessor pair of
functions forces the computer to re-
boot. If done with a "*" as the fourth
digit, any parameter changes which
you have made by touch tone are
saved. If you reboot with the "#"
version of the command, the com-
puter is forced to forget your changes
and read in your specified default set-
tings programmed into the EPROM at
the factory. This is a way to restore
all the default settings after you try all
sorts of changes and forget where you
left things.
AUXILIARY CONTROL OF
EXTERNAL CIRCUITS.
The two drivers are provided on the
COR-5 board to switch external acces-
sories and are called "CTCSS Defeat"
(E7) and "Voice ID Trip" (E8). These
outputs can sink up to 200 mA at
voltages up to 15Vdc.
E7 can be used to switch any
accessory, although it is usually
dedicated to defeating a TD-3 Sub-
audible Tone Decoder if one is
installed. This output is controlled by
the CTCSS Defeat command. The
"on" command defeats the CTCSS
Decoder (allows the repeater to be
used without any sub-audible tone on