Specifications

STEP 5:Ensuring they are on the same channel and while using the FFM

microphone while the unit is still activated, press the PTT button and talk into

the microphone. You should hear yourself through the other diver unit or the

surface station. If using the system in the voice operation mode (VOX), speak

loudly with a vowel sound such as “AH” or say the number “FOUR” to trigger

the VOX. (Note: The SW-1000-SC, when rst initiated, will always begin in

the PTT mode, even if you had it in the VOX mode when it powered down.)

STEP 6: Verify your transceiver is on the same channel everyone else will be using,

earphone levels are to your liking, the VOX setting is proper (unless you plan on

using only PTT), and the squelch setting is appropriate for the environment and

range you require. (Refer to Section 3.4, Adjustments, for assistance if necessary.)

Note: The factory squelch default setting should be appropriate for most operations. .

STEP 7: Repeat the above procedures with any other transceiver and verify that

it is operational and on the same channel.

STEP 8: After the above verication and all settings are to the diver’s liking, the

batteries are fully charged, and the o-ring is installed properly and clean of debris,

you are ready to dive.

NOTE:

(1) The units will not sound as clear during these tests as they will in open

water.

(2) The units will always start in PTT mode after powering down or up.

(3) The VOX setting typically increases in sensitivity when the mask is under

pressure.

3.4 ADJUSTMENTS

The SW-1000-SC has a unique feature that allows you to adjust the VOX/PTT

functions electronically, either out of the water or in the water. If you depress the

PTT button three times within two seconds, you will hear in your earphones either a

two-tone beep sequence or a short beep. A double two-tone beep sequence indicates

the unit is going into VOX mode. A single tone indicates the system is going into

PTT mode. (Note: The system requires three distinct presses. If the three presses

are done too quickly, i.e., three times within 1 second or less, then the system may

not switch modes.)

3.4.1 PUSH-TO-TALK (PTT) BUTTON: The PTT button serves two purposes:

(1) When pressed and held, you activate the transmitter. As long as you hold the PTT

button, you will be transmitting. When you release the button, your transceiver will

automatically return to the receive mode. If you are in the VOX mode, you can still

depress the PTT to override the VOX. This is useful if your VOX is not adjusted

properly and you have trouble activating the VOX. However, if you override the

VOX, then when you release the PTT button, you will still have the VOX delay