Specifications

earphones. If this occurs, a lower setting is desired. Refer to Section 3 (Adjustment and
Operating Instructions) for more information.
2.8 INTERCOM AUDIO (IV)
Your intercom volume is on all the time. You will hear yourself or any other diver that
plugs in his coiled cord as “Intercom Audio.” The two-turn level control allows adjustment
of secure diver-to-diver intercom audio volume. A clockwise turn will increase the volume.
This volume is typically set a little lower than the rest.
2.9 RECEIVER VOLUME (RV)
All wireless received audio is called “Receiver Volume” (RV). Each diver hears a little
differently and may prefer a loud or soft listening volume. A clockwise turn of the “RV”
volume control increases the volume.
2.10 DUAL CHANNEL SELECTION
The SW-1000-SC offers two different frequencies, called channels. The ability to select
between channels is useful for dive teams with more than one group. The diver can select
channels only on the surface, not while diving. The slide switch, on the bottom of the upper
electronics housing, is labeled A and B (the two channels). See Section 3 (Adjustment and
Operating Instructions) for more information.
The more efcient channel is B (F2 frequency), because transducers have a peak output over
a narrow band of frequencies. The transducer output has been optimized for the special F2
frequency. F2 provides the longer range. IMPORTANT NOTE: Ensure all the transceivers
are on the same channel before beginning a dive.
2.11 EARPHONE-MICROPHONE (EM) ASSEMBLIES
Because each full-face mask manufacturer has designed a different communication port for
its masks, we have provided different earphone-microphone (EM) assemblies. Table 1 is
a compatibility chart showing many of the EM assemblies available for the SW-1000-SC.
Note: If you need an EM assembly for a mask or rebreather not listed here, contact OTS
or your local OTS dealer.
2.11.1 EMA-SW-1SM (910274-001): The EMA-SW-1SM EM assembly is designed
for all MKII AGA FFMs. It consists of dual ceramic earphones, two earphone holders, an
all-depth Super Mic
®
, a Hi-Use
®
connector, and a chest-mount PTT button. It is installed
into the MKII AGA FFM communication port.
2.11.2 EMA-MK24-SM (910279-001): The EMA-MK24-SM EM assembly is designed
for the MK-24 FFM. It consists of dual ceramic earphones, two earphone holders, an all-
depth Super Mic
®
, a Hi-Use
®
connector, and a chest-mount PTT button. The assembly is
installed into the MK-24 FFM communication port.
2.11.3 EM-KMS-48SM (910280-002): The EM-KMS-48SM EM assembly, for all
M-48 SuperMask
®
FFMs, consists of dual ceramic earphones, two earphone holders, an
all-depth Super Mic
®
, a Hi-Use
®
connector, and a chest-mount PTT button. The assembly
is installed into the M-48 FFM communication port.
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