Avalon RF ODX402 User manual

Avalon RF, Inc. • 344 Coogan Way • El Cajon, CA 92020
Phone: [phone] • Fax: [phone] • Email: [email protected]om
ODX402 / ODX502 / ODX602
COFDM Digital Video Diversity
Receiver
User's Guide & Operating Manual
REV. B
02 Feb 2009
http://www.avalonrf.com/

AVALON RF, INC. Page ii
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
Table of Contents
1. General................................................................................................1
Figure A – Front Panel.........................................................................2
Figure B – Rear Panel..........................................................................3
2. Specifications.......................................................................................4
Frequency Range................................................................................4
Power Input .........................................................................................4
Figure C – Power Input ....................................................................4
Antenna Inputs ....................................................................................5
Video Outputs......................................................................................5
Audio Outputs......................................................................................5
Figure D – Audio Output(s) ..............................................................5
Data/Program Output...........................................................................6
Figure E –Data/Program Output.......................................................6
Digital Wireless Link Antenna Output...................................................6
WDL Interface......................................................................................7
Figure F – WDL Interface.................................................................7
WDL Power Input.................................................................................7
Serial RS232 I/O..................................................................................7
Size .....................................................................................................8
Weight.................................................................................................8
Mounting Methods...............................................................................8
Figure G – ODX602 Mechanical Specifications - Inches [mm].............9
Figure H – ODX602 Mounting Holes..................................................10
Environmental Conditions..................................................................11
3. Operating Instructions........................................................................12
Human Interface................................................................................12
Front Panel Channel Select Switches ............................................12
Front Panel Indicators....................................................................12
OSD Menu Control.........................................................................12
Power On/ Off ................................................................................13
Operating the ODX602 ......................................................................13
4. Ordering Information..........................................................................15
Optional features............................................................................15

AVALON RF, INC. Page 1 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
1. General
The ODX402/ ODX502/ OODX602 receiver is a new introduction to
the Avalon digital video family. It is a rugged 2-antenna diversity
receiver using maximal ratio combining to mitigate fading & multipath
effects. The receiver is ideal for demanding high-end video
applications that require robust video. The low power consumption &
the quick switching between 16 channels gives added convenience in
handheld & or body worn applications.
Features like OSD menu, two video outputs & front or rear antenna
inputs enhance suitability of the ODX602 to various applications.
The ODX402 is a VHF/ UHF receiver, the ODX502 is a L-band
receiver and the ODX602 is a S-band receiver.
NOTE
Unless explicitly stated, every reference in this document to
the ODX602 also implies the ODX402 and ODX502. The
main difference between the models is the frequency
range.
The ODX602 receiver has the following standard channels:
A video channel.
An audio channel.
A data channel for telemetry data.
Optional features include:
•Wide version (- W) to accommodate a Avalon Transceiver
TR430-2G for high speed 115Kbps data or TR423 for 9.6Kbps
•Data transceiver (Opt 11) – installs a TR423 transceiver
•Talk back audio channel (Option 31)
•Rack Mount Kit (Option R2)

AVALON RF, INC. Page 2 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
2 3 8
1
4 5 6 7
Figure A – Front Panel
ODX402/ODX502/ODX602 Controls, Indicators and Connectors
1 - Antenna 1 Input
2 - Power Indicator LED
3 - Channel Select Switches
4 - OSD Menu Switch
5 - Link Indicators
6 - AUX switch (Reserved)
7 - Bank select switch
8 - Channel Indicator led’s

AVALON RF, INC. Page 3 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
1 3
4 2 5
Figure B – Rear Panel
ODX402/ODX502/ODX602 Controls and Connectors
1 Rear Antenna inputs
2 Audio Output Connector
3 Power Connector
4 Video Outputs
5 Data Output/Program
Connector

AVALON RF, INC. Page 4 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
2. Specifications
2.1 Frequency Range (Model Dependent).
The frequency range of each model has a base number that identifies
its band. E.g 4 is UHF, 5 is L-band & so on. The ‘standard’ frequency
ranges for the various models are as follows:
ODX402: UHF receiver with a tuning range of 170-230 MHz or
470MHz-862MHz.
ODX502: L-band receiver with a tuning range of 900 MHz-1200 MHz
or 1.2GHz-1.8GHz.
ODX602: S-band receiver with a tuning range of 2.1GHz-2.5GHz or
2.3 –2.7 GHz.
There can be 16 channels within the operating range. For frequency
ranges other than those indicated, please contact Avalon RF sales.
2.2 Power Input – (Circle 3 on rear panel).
a) The power input connector is a 4 pin on the rear panel of the
ODX602.
Pin 1 – Power Return
Pin 2 – NC
Pin 3 – NC
Pin 4 – Power Input (+9Vdc to +20Vdc)
Figure C – Power Input
b) The ODX602 operates off a 9Vdc to 20Vdc unregulated voltage
source with a ripple of less than 0.5Vp.p.
c) Input Current is <0.6 Amps at an input voltage of 12Vdc.
d) Power is switched ON/OFF via a front panel electronic switch.
e) The ODX602 power input is protected against reverse polarity and
also has a under voltage lock-out.

AVALON RF, INC. Page 5 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
2.3 Antenna Inputs, total of 2 (Circle 1 on front panel).
The standard ODX602 has 2 SMA (f) inputs on the front panel. The –
R option installs the antenna options on the rear panel. This is most
convenient in rack mount or OEM installations. The input impedance
is 50 ohms.
2.4 Video Outputs (Circle 4 on rear panel)
The ODX602 has 2 video outputs – Video 1 and Video 2. Dual video
outputs enable one to be used for monitoring while the other can be
used for recording. Video output connector is a BNC type with a 75 Ω
(ohm) impedance.
a) Output is NTSC/PAL/RS170A/CCIR baseband from 20 Hz to 5.5
MHz for NTSC or 20 Hz – 6.5 MHz for PAL.
a) Output amplitude is 1 Vp.p. with negative sync tips of 0.3 Vp.p.
2.5 Audio Outputs (Circle 2 on rear panel)
Audio output is through a 5 pin connector located on the rear panel.
Both stereo outputs are 600 balanced. The amplitude (volume) can
ba adjusted through the RS232 terminal.
Pin 1 – Audio Return
Pin 2 – Left Audio + Output
Pin 3 – Right Audio + Output
Pin 4 – Right Audio - Output
Pin 5 – Left Audio - Output
Figure D – Audio Output(s)

AVALON RF, INC. Page 6 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
2.6 Program/ Data output
(Circle 5 on rear panel).
The Data/ Program connector is a LEMO type ECG.0B.307.CLN or
equivalent:
The connector pin-out is:
Pin 1
–
Ground
Pin 2
–
NC
Pin 3
–
NC
Pin 4
–
NC
Pin 5
–
RS232 Input
Pin 6
–
RS232 Output
Pin 7 – Ground
Figure E –Data/
Program Output
2.7 Wireless Digital Link (WDL) Antenna (Circle 6 of Front Panel)
a) The antenna connector is a SMA (f) with 50 Ω(ohm) impedance.
b) The WDL operating frequency range is 300MHz to 1000MHz.
NOTE
For operation in the USA, the WDL is preset for operation at
433.2MHz.
c) Maximum transmitter output power is 10mW at 433.2MHz. For
UAV applications, the TR423 output power is 250 mW or 1W for
the TR430-2G.
2.8 WDL Interface (Figure C, circle 6).

AVALON RF, INC. Page 7 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
The WDL connector is a 6 pin Hirose male connector. The pinout is
as shown below. The dc power to this module is independent & may
be turned on/ off without affecting the operation of the main unit.
Figure F – WDL Interface
Pin #
Function Pin # Function
1 Power Input - 4 RS232 Tx
2 NC 5 RS232 Rx
3 Power Input + 6 RS232 Ground/Return
2.8.1 WDL Power Input (pins 1 and 8).
a) The WDL requires a 9Vdc to 16Vdc unregulated voltage source
with a ripple of less than 0.5Vp.p.
b) Input current is 350 mA during transmit & 60 mA during receive
at nominal 12Vdc.
2.8.2 Serial RS232 I/O(pins 2 and 3).
For frequency setting, baud rate commands etc. please refer TR430-
2G or RT423 manual (as applicable).

AVALON RF, INC. Page 8 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
2.9 Size
Configuration Dimensions
6” W x 1.75” H x 6.2” D
ODX602
(See Figure G) 152mm x 44mm x 158mm
2.10 Weight
Net Weight 1.3 lb. (0.58Kg)
Shipping weight 2 lbs. (0.92Kg)
2.11 Mounting Methods
2.11.1 Rack Mounting (Option R2)
A special rack mounting kit is available from Avalon RF for mounting
2 ODX602 in a 1U high rack. For rack mount applications, it may be
beneficial to have rear connector mounting. Please call for pricing &
details.
2.11.2 Other Mounting methods
The ODX602 has a provision for mounting on the top and bottom
faces. A set of four (4) blind tapped holes has been provided for
mounting purposes. The holes have been tapped for ANSI/ASME 4-
40 size screw.
NOTE
DO NOT unscrew or attempt to use any other holes other than
the ones shown in Fig H for mounting purposes. Screws other
than the ones installed, if used in the holes not meant for
mounting will short internal parts causing irreparable damage to
the unit. Such action will also VOID the Warranty.

AVALON RF, INC. Page 9 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
1.7” (44 mm)
6”
6.25”
(158 mm)
6” (150 mm)
Figure G – ODX602 Mechanical Specifications - Inches [mm]

AVALON RF, INC. Page 10 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
Figure H – ODX602 Mounting Holes

AVALON RF, INC. Page 11 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
2.10 Environmental Conditions.
The ODX602 is designed to meet the following environmental
conditions:
a) Operating temperature
-4°to 122°F
(-20°to 50°C)
b) Storage temperature -13°to 150°F
(-25°to 65°C)
c) Vibration 1.5G, from 10Hz to 2KHz, sine
wave, three axis
d) Shock 15G, 25msec, half sine wave,
three axis
e) Humidity 5 to 95%, non-condensing
f) Inclination Any
g) Altitude -1500 feet to 15,000 feet
(-450 meter to 4,500 meter)

AVALON RF, INC. Page 12 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
3. Operating Instructions
3.1 Human Interface.
3.1.1 Front Panel Channel Select Switches (Circle 3 on figure A)
The ODX602 has a provision of 16 channels. The frequencies
associated with a channel have been factory programmed but can be
changed by the user through the serial RS232 interface. The front
panel has a bank of 8 switches to allow quick switching between
channels. The channels are numbered 0-F (hexadecimal format
wherein A is 10, B is 11 … F is 15) that correspond to the OTX627
channels. A second bank select switch selects Bank 0-7 or 8-F. The
led corresponding to the selected channel glows to indicate the
selected channel.
3.1.2 Front Panel Indicators (Circles 2, 5 & 8 on figure A).
The ODX602 has 4 sets of indicators-
a) Power indicator (Circle 2): This red led indicates the unit is
powered ON. A brief flash when the ‘Power’ is pressed indicates
that the input voltage is too low for operation. This is called a
‘Under-Voltage Lockout’.
b) Channel indicators (Circle 8): These are yellow led’s indicating the
selected channel
c) Bank indicator : This green led when lit indicates that Bank 8-F has
been selected.
d) Link indicators (Circle 5): This is a set of 2 yellow led’s that provide
quick visual indication of the video link. The STATUS led will glow
when the receiver has locked to a valid COFDM signal. The FAIL
led blinks whenever there the link reception has degraded to a
noticeable degree.
3.1.3 OSD Menu Control (Circle 4 on figure A).
This switch allows the user to enable or disable the ‘on-screen
display (OSD)’. It has a 4 settings as explained later.
3.1.4 Power On/Off (Circle 5 on figure A).

AVALON RF, INC. Page 13 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
The power on/off switch controls power to the unit. It is an electronic
switch & must be kept pressed for 3 sec.
3.2 Operating the ODX602.
The ODX602 has the following user controls/ functions:
3.2.1 Power On/Off
The ODX602 has a electronic on/off switch. The switch must be held
pressed for at least 3 sec to turn the unit on or off. This shuts off
power to the entire receiver. The on condition is indicated by the
power led glowing red.
3.2.2 Channel selection
Select the desired channel by pressing the switch. A tactile feedback
gives indication of the switch press.
3.2.3 Bank Select Switch
This switch has a toggle function. At power on, it is ‘off’ indicating that
the channel bank 0-7 has been selected. When pressed, the green
led above it glows indicating that channel bank 8-F is now selected.
Pressing the switch again will turn off this selection.
3.2.4 OSD Menu
The OSD Menu brings up the ‘on-screen display’. At power on, the
default mode is – OSD OFF. It has 4 modes that it cycles through on
each key press – ID mode, Quality mode, Audio Volume and OSD
OFF.
The ID mode shows the SID (service ID) of the received channel, the
channel’s frequency & an indication of the rf signal level together with
a signal quality red/green indication.

AVALON RF, INC. Page 14 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
Quality mode is more useful to technically inclined or the advanced
user. It gives a more enhanced display of each of the two antennas
input signal levels, the signal quality of each & the combined BER (Bit
Error Rate) of the recovered signal. The BER is a measure of the
overall quality of the combined signal (from antenna 1 & 2). For
MPEG-2, blotchy effect is seen at a BER of about 2 x 10
-3
. The
typical rf level at this point is around –95 dBm, although other factors
like severe multi-path or interference could cause high BER at much
higher signal levels. The normal user should only use this, if at all, to
judge the cause of poor performance or to get a feel of the locations
effects to the wireless link.
Audio Volume Mode shows the current audio volume/ output level
setting. It is only a display of the setting. The value can be changed
through the serial RS232 interface.
OSD OFF mode as it implies does not put any on-screen display.
Please note that even though OSD Menu is off, when a channel is
changed, there will be a brief OSD for 3 secs, indicating the new
channel info, the SID etc. When the lock has been established, the
OSD disappears.
3.2.5 Antenna Use
This digital system uses COFDM modulation that gives a great
advantage of a robust video link. However, there are differences
when compared to a ‘traditional analog’ video system. One of the
main differences is the input signal level permitted for good signal
reception. That directly translates into transmitter power & use of
antennas. The ODX602 receiver has excellent sensitivity allowing use
of small low profile antennas. High antenna gain will saturate the front
end of the receiver & result in distortion of the received signal thereby
causing errors in reception.
Please consult Avalon RF for choice & use of antennas.

AVALON RF, INC. Page 15 of 15
ODX402/ ODX502/ OODX602 User’s Guide & Operating Manual
4. Ordering Information
ODX402 – Basic Receiver
ODX502 – Basic Receiver
ODX602 – Basic Receiver
Every ODX602 comes with the standard features and following
accessories:
4.1 One ODX402 or ODX502 or ODX602 in a ZIPLOCK ESD bag.
4.2 One BX002U 12V low noise regulated Universal AC adapter for
worldwide use (except for country specific plug).
4.3 A user manual (the one you’re reading).
4.4 A warranty card.
4.5 One reusable carton with foam lining.
4.6 Optional features:
Option 01 Programming cable for RS232 interface.
Programming instructions are provided in a
separate document only for advanced users.
Option 11 Two way serial communication channel.
Option 31 Audio talk back input
Option R2 Rack mount kit to mount 2 ODX602 in a rack.