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Quickstart: DSS-900-KT Surveillance System

DSS-900-KT Digital Spread Spectrum Surveillance System 1

Quickstart: DSS-900-KT Surveillance System

Quickstart guides the experienced surveillance professional in rapid setup

and use of the DSS-900-KT. The following table guides you through set up of

the TX, RX and recording functions of the DSS-900-KT.

Step

No.

Step Reference Quickstart Action

For Details

See Page

Select power

source.

Connect the RX to either an

external AC or DC source.

Install RX antenna. Connect directional high-gain

patch antenna, or omni-

directional disguised cellular

magnetic mount antenna to RX.

Choose agent’s

microphone.

Use the built-in top fire mike on

the TX, or plug in one of the

external mikes.

Get a tape. Load tape into the Marantz.

Make sure that:

• The tape is fully rewound.

• You are not about to

overwrite an existing

recording.

• The tape is not write

protected.

Enable recorder. Turn the Marantz power ON. 14

Select headsets or

the speaker.

Decide to use the speaker, or

plug one or two headsets into the

matching jacks. This disables the

speaker.

Turn TX on. Slide TX power to ON. 13, 14

Set sound intensity. Set the VOLUME to mid-range. 7

Summary of content (16 pages)

PAGE 1
DSS-900-KT Digital Spread Spectrum Surveillance System 1 Quickstart: DSS-900-KT Surveillance System Quickstart guides the experienced surveillance professional in rapid setup and use of the DSS-900-KT. The following table guides you through set up of the TX, RX and recording functions of the DSS-900-KT. Step No. Step Reference Quickstart Action For Details See Page 1. Select power source. Connect the RX to either an external AC or DC source. 6 2. Install RX antenna.
PAGE 2
DTC Communications, Inc. Step No. 9. Step Reference Quickstart Action For Details See Page Select a method for recorder control by using the POWER switch in the RX RECORDER section. MANUAL: Record Mode activate is controlled at the Marantz. AUTO: Record Mode activate is controlled by audio squelch level on the DSS-900-KT RX. 8 10. Utilize extra outputs for additional original audio recordings. Connect extra recorders to VCR and SPARE RECRDR output jacks. 14 11.
PAGE 3
DSS-900-KT Digital Spread Spectrum Surveillance System 3 System Overview Your DTC-900-KT enables communication from a bodywire or internal microphone on the battery powered TX (transmitter) unit to a briefcase receiver/recorder. The DSS, digital spread spectrum, transmission technique is explained in detail in the DSS-900-KT Product Data Sheet. You can obtain a copy of this sheet from your DTC representative, but you do not need to know these details to use the equipment.
PAGE 4
DTC Communications, Inc. Kit Components The system is packaged in a rugged carrying case (Figure 2) and in a fabric accessory pouch mounted on the outside of the case cover. COMPONENTS IN THE BASE 1. RX panel 2. TX and components: AAA alkaline batteries, qty. 5 External microphone 3. Frequency-Channel No. label 4. Cover-mounted accessory pouch 5.
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DSS-900-KT Digital Spread Spectrum Surveillance System 5 Using the Receiver Receiver Controls The main panel within the case of the DSS-900-KT is divided into eight segments as called out in the photograph of Figure 3. 1. 2. 3. 4. Power segment Receiver segment Recorder segment Audio segment 5. 6. 7. 8.
PAGE 6
DTC Communications, Inc. 1. Power • The main power OFF and ON switch controls power to all RX subsystems including the Marantz tape recorder. The recorder must be activated as shown in the accompanying Marantz operator manual. • The AC INPUT power receptacle is located in the lower center. An external DC voltage source (11 to 16 VDC) can be introduced to the system at the DC INPUT jack with the regulated cigarette power adaptor cord. This adaptor is fused for 5 A.
PAGE 7
DSS-900-KT Digital Spread Spectrum Surveillance System 7 2. Receiver The RECEIVER section on the front panel contains two LEDs and two controls. • RX ON LED tells you that power is applied to the RX and that the tape recorder power is enabled. It does not mean that the RX is necessarily receiving a signal from the TX, • TX LOCK LED tells you that the RX is receiving a signal from the TX and that the signal is of sufficient strength to be locked on.
PAGE 8
DTC Communications, Inc. 3. Recorder The RECORDER section contains a single LED and single switch, both of which relate to the Marantz tape recorder built into your DSS900-KT. • POWER ON lights up when the POWER switch located below it is in MANUAL or when the audio level is above squelch and the AUTO mode has enabled the recorder power.
PAGE 9
DSS-900-KT Digital Spread Spectrum Surveillance System 4. Audio The AUDIO section has five outputs: • A speaker set behind the grillwork. • Two HEADSET jacks. On the left, a jack for a 1/4 inch connector. On the right, a jack for the 3.5 mm mini-jack Sony headset that is supplied with your DSS-900-KT. • Two audio signal output connectors. On the left, VCR, a fixed signal level compatible with a standard VCR. On the right, SPARE RECRDR, an identical output for a second, spare recorder.
PAGE 10
DTC Communications, Inc. 5. Range The RANGE section is the one you have to watch most closely. The RANGE LEDs warn you that the DSS signal is getting low and audio will be lost unless you reorient the agent or move the RX closer to the agent. Remember, with digital spread spectrum, there is no in-between zone. Audio is present and perfect, or it’s gone! Let’s start at the top of the RANGE section. ALARM turns on whenever the signal is very low or when you have lost TX lock on the signal.
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DSS-900-KT Digital Spread Spectrum Surveillance System 11 Ten LEDs on the right tell you the status of the signal received from the TX. • Green LEDs - Top 4 greens only come on when the signal is strong and the TX and RX are locked together. Whenever the Green LEDs are on, both the yellow and red LEDs below are also on. • Yellow LEDs - Middle 3 yellows are on with the red LEDs. When the green LEDs flicker off and the yellow are still on, the signal level is getting low and a TX lock is in jeopardy.
PAGE 12
DTC Communications, Inc. 7. RX Antenna Connector Both the 3 dBi omni-directional magnetic mount antenna (Figure 2 on page 4) and the 11 dBi high gain patch antenna are attached at the RX ANTENNA BNC connector. Use the patch antenna with the Mafer clamp whenever you can reasonably expect the wired agent to be within a known general location, such as a particular street corner. The patch antenna is quite directional with a beam width of about 60°.
PAGE 13
DSS-900-KT Digital Spread Spectrum Surveillance System 13 Using the Transmitter Keep in mind that the TX patch antenna must be facing away from the agent’s body to work properly. The patch antenna is housed in the black plastic-like dome on the TX unit. There is no external antenna on this unit. • The internal top fire mike is located between the two slide switches (Figure 4-b). It is active unless an external mike is plugged into the gold Lemo connector as shown in Figure 4-a.
PAGE 14
DTC Communications, Inc. Field Use of the DSS-900-KT Each control on the RX is explained in Receiver Controls starting on page 5 and is shown in Figure 3, also on page 5. The TX and its setup are described in Using the Transmitter on page 13. The Quickstart: DSS-900-KT Surveillance System on page 1 contains an information overview on field use. 1. Verify that the transmitter is switched on. 2. Connect either the DC INPUT or AC INPUT to the appropriate power source.
PAGE 15
DSS-900-KT Digital Spread Spectrum Surveillance System 6. 7. 8. 9. 10. 15 If the TX has not yet been deployed, check its channel number and switch CHANNEL SELECT on the RX to that number. • If the TX is already harnessed to the agent, move the CHANNEL SELECT switch until you see the TX LOCK light turn on. This indicates that the agent has activated the TX and you are receiving audio. Adjust the VOLUME control, which affects the speaker and the headsets only. It does not affect the recording.
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