AValon RF TX600 User Manual

TX518/TX523/TX530

L-Band Video Transmitters

User's Guide & Operating Manual

REV. A - 15 Aug 2007

http://www.avalonrf.com/

Avalon RF, Inc. • 344 Coogan Way • El Cajon, CA 92020

Phone: [phone] • Fax: [phone] • Email: [e-mail]

AVALON RF, INC. Page ii
TX500 Series User’s Guide & Operating Manual

RF EXPOSURE INFORMATION

Maximum Permissible Exposure

Any Wireless Equipment can pose health hazards if precaution is not
exercised in its use/operation, especially its proximity to the human body.
Excessive absorption of RF energy in the body is known to cause Cancer
and/or other diseases. The FCC has issued guidelines to determine the
safe distance of a transmitting antenna from the human body, to limit
absorption to safe levels. Please follow the instructions given in this
manual.
WARNING: Refer to Table 4 in Section 3 (Operating the transmitter) to
determine the MINIMUM DISTANCE the Transmitter with Antenna
mounted, or the Antenna itself (if connected via coax to the transmitter),
must be placed away from the body to minimize the health hazard. Also,
note the Warning for TX530 after Table 4.

AVALON RF, INC. Page iii
TX500 Series User’s Guide & Operating Manual

Table of Contents

1. General................................................................................................1

Table 1 – Model/Output Power ............................................................1

Figure A – TX500 Series Controls and Connectors..............................3

Video...................................................................................................4

Audio...................................................................................................4

Talk Back Audio Channel (Optional)....................................................4

Two Way Digital Data Link (DDL) (Optional)........................................4

RF Outputs..........................................................................................4

2. Specifications.......................................................................................5

User Interface......................................................................................5

Setup...................................................................................................5

Electrical Interface...............................................................................6

Table 2 – Current Consumption...........................................................6

Table 3 – Power Output.......................................................................7

Interconnecting....................................................................................9

Figure B – DB 15.................................................................................9

Mounting............................................................................................10

Mechanical Data................................................................................11

Environmental Conditions..................................................................12

3. Operating the transmitter. ..................................................................13

Operater Controls & Indicators...........................................................13

General Guidelines............................................................................14

Table 4 – Minimum Safe Distance.....................................................15

4. Ordering information..........................................................................16

Base Models......................................................................................16

Options..............................................................................................17

Recommended Accessories..............................................................18

Antennas........................................................................................18

Cables............................................................................................19

Battery Packs.................................................................................19

Warranty............................................................................................20

AVALON RF, INC. Page 1
TX500 Series User’s Guide & Operating Manual

1. General

The TX500 series rugged transmitters are intended for use in military,
homeland security, mobile security, broadcasting and motion picture
production.

The TX500 Series is an FM modulated transmitter with a tuning range
that is model dependent. See table below for frequency ranges.

Model Frequency Range
TX5XX-00 900-1100 MHz
TX5XX-01 1100-1300 MHz
TX5XX-02 1300-1600 MHz
TX5XX-03 1600-1900 MHz
TX5XX-04 1900-2200 MHz

The following table details the RF output power of the various models:

Model Output Power
TX518 70mW
TX523 200mW
TX530 900mW

Table 1 – Model/Output Power

The Transmitter connector is a high density DB-15.

AVALON RF, INC. Page 2
TX500 Series User’s Guide & Operating Manual

All transmitters offer the following features:

• A single broadcast quality video channel with no delay.

• One/Two (optional) broadcast quality audio channel/s

Optional features (each ordered individually).

• Two-way Wireless Data Link (WDL) to a DX series receiver.

• Talk back audio channel.

• Alarm/Motion sensor interface.

• Telemetry inputs.

AVALON RF, INC. Page 3
TX500 Series User’s Guide & Operating Manual

Top View

1 Power Switch
2 WDL Antenna
3 Main Antenna

Bottom View – Broadcast

4 Power/Video Input – see Figure C
5 Data Input – see Figures F
6 Video Input – see Figure D
7 Audio Input – see Figure E

Bottom View – Security

8 Power/Video Input – see Figure B

Side Views

9 Power LED Indicator

10 Channel Select Dip Switch

Figure A – TX500 Series Controls and Connectors

AVALON RF, INC. Page 4
TX500 Series User’s Guide & Operating Manual

1.1 Video.
The video input is buffered, combined with the audio subcarrier/s,

then DC level restored, limited by a white level clipping circuit, pre­emphasized and FM modulates the transmitter RF carrier.

Avalon RF offers the following video indices of modulation:

• Industry standard frequency deviation of 2MHz.

Compatible to GMS, L3 and others.

• Wide frequency deviation of 4MHz.

1.2 Audio.
The audio input/s are buffered and FM modulated on subcarrier/s.

The factory preset subcarrier frequency is 6.5MHz but can be factory
programmed to any frequency from 5MHz to 7.5MHz. The
subcarrier/s is synthesized.

1.3 Talk Back Audio Channel (optional).

The talk back audio channel allows the camera operator (on the
transmit side) to receive instructions from the operator at the
receiver’s side. It drives an earpiece.

1.4 Two Way Wireless Digital Link (WDL) (optional).

The WDL serves as a Pan-Tilt-Zoom (PTZ) / general-purpose two­way RS422/RS485 digital link.

1.5 RF Outputs.
The transmitters have two RF outputs (Only 1 for a standard unit,

without WDL or Talk Back Audio Option). A female SMA connector
for the main transmitter and a MCX for the WDL.

Both outputs feed antennas, either directly or through a cable.