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6. DUAL WATCH [ DW ] :
This function allows to watch activity on a second channel. Before selecting the
DW function set the squelch control ( 1 ) SQUELCH according to Para "2". Select
now the first channel which you want to survey and then depress briefly the button
( 14 ) DW. In the display appears a flashing [ DW ] sign. Start within 5 seconds se-
lecting the second channel which you want to survey otherwise the DW function
will stop automatically. After having reached the desired channel press the button
( 14 ) DW another time and [ DW ] will appear permanently. Now the DW function
is completely activated. The DW function will remain on this channel if the incom-
ing signal can open the squelch and is not longer interrupted than 10 seconds.
Otherwise the unit will tune to the other channel. If no signal is found there the ra-
dio will step every second to the other channel. Depressing the key ( 14 ) DW
again or any other, except ( 15 ) FRQ, will stop the DW function.
7. TRANSMIT ( PUSH TO TALK / PTT ) :
To transmit depress and hold the PTT key on the microphone. In the display ap-
pears [ TX ] and together with the symbol [ SRF ] = ( Signal Radio Frequency )
the relative output power will be shown in form of a progressively increasing
number of bar sections. The microphone sensitivity has been set to give good
results speaking normally at a distance of 2 - 4 inches. Speaking too loudly will
cause distortion and make the signal difficult to understand especially in case of
amplifier or echo microphones. While the set is in the transmitting mode there is
no key entry possible and the receiver is muted. On completion of the transmis-
sion release the PTT key and the set will revert to receiving mode.
8. S-METER [ EXT S-METER ] :
Behind the letters [ SRF ] the relative transmit power and received fieldstrength
will be displayed in the window ( 3 ), forming progressive bar sections. The
SelCom 4000 has on its rear panel a socket ( 20 ) EXT S-METER for the con-
nection of an additional S-meter with a 2.5 mm plug.
9. EXTERNAL SPEAKER [ EXT SP ] :
The TEAM SelCom 4000 has on its rear panel a socket ( 18 ) EXT SP for an
external speaker of 4 - 8 ohm impedance with 3.5 mm plug. At 4 ohms the dissi-
pation of the speaker can be up to 2 watts.
10. KEYS [ 1 - 4 ] FOR CHANNEL MEMORY :
The TEAM SelCom 4000 can store up to 4 frequently used channels. The de-
fault settings of the memory keys ( 8 - 11 ) 1 - 4 are the channels 1, 9, 19, 40.
These memories can be overwritten with other channel numbers. In case of
data loss the default settings will be stored in the memories again. To save a
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