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Setting the “channel end” scanning range (if funtion SF8 ac-
tivated)
Call up function SF 14 using the MDE key. The following displays appe-
ar :
Top line SF 14
Bottom line CS channel number
Using the kHz (steps of 1) or MHz (steps of 10) switch, select the end
channel at which the scan function is to stop. Store the end channel by
pressing the STO key.
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Entry of password to interlock the equipment configuration
Call up the SF 15 function using the MDE key. The following display ap-
pears :
Top line SF 15
Bottom line 0
Set any 4-digit numerical code using the kHz (steps of 1) or MHz (steps
of 10) switch. Store the numerical code by pressing the STO key.
NOTE
As soon as a password is given an 0 appears in the bottom line when the
service mode is called up. The numerical code must then be input using
the MHz or kHz switch. If the portable VHF station detects a false nume-
rical code, it automatically switches to the last mode. If the password is to
be erased or changed, this is done by calling up the service mode using
the old password. The SF 15 function is then chosen and either an 0 is
entered everywhere or the changed numerical code is entered.
Operating Instructions
Page 28 Issue 05/2000
NOTE
l
Due to the carrier controlled squelch, the audio output isquieted with
a certain delay after removal of an adequate RF-signal from the re-
ceiver input. This delay causes noise appearing in the audio output
for some time. The presonce of this unwanted short time noise can
be eliminated by activating the squelch fast mode in the service
mode. With the squelch fast mode activated, it can occur that parts
of a received message are blocked out and are not audible when the
RF input signal is very weak.
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Jamming of transmit button
The portable VHF station is fitted with a protective circuit to protect
against jamming of the transmit button or a short circuit on the keysupply
line. For continuous transmissions exceeding two minutes the protective
Circuit automatically switches from transmission to reception. This
avoids the switched channel being blocked.
In the event of a fault, this is only possible after the short circuit has been
cleared or the transmit button released.
NOTE
l
In order to be able to continue transmitting even with the transmit
button jammed, the portable VHF station must be switched off and
then back on again. After that the portable VHF station then continu-
es to operate in the transmit mode for a further two minutes.
Becker GK 415 - ( )
Issue 05/2000 Page 13