ATS R4520C User manual

Advanced Telemetry
Systems
R4520C
Receiver/Datalogger, 12 table version
for use with ATS Coded Transmitters
User Manual

Advanced Telemetry Systems, Inc. R4520C Reference User Manual R05-11A 2
Introduction:
The R4520C is a receiver - data logger combination.
The R4520C can store 98304 Stationary data blocks, or 49152 Aerial data blocks. For Aerial Data, an extra data
block is needed for GPS information. The data is stored to memory using a looping format. If the data set is
maxed out, the newest data will overwrite the oldest data block.
The Receiver uses DSP (Digital Signal Processing) technology to achieve a better sensitivity, and to help filter out
noise. The DSP is using the audio signal from the R4520C and digitally sampling the signal. When the signal has
been digitized, mathematical calculations are then used to identify signals.
The C suffix indicates the software in this receiver is programmed to detect pulse coded tags.
A pulse coded tag is a transmitter using multiple pulses repeated at a specific pulse rate. The multiple pulses are
used to provide specific ID’s allowing multiple transmitters to be present on the same frequency. A pulse burst
consists of a single wide pulse followed by two narrow pulses.
On each tuned in frequency, the R4520C has the ability to modify its audio output. In addition to the audio playing
every signal the receiver is picking up, it can be used to filter out pulse coded tags. The audio can be programmed
to broadcast only one pulse coded tag for individual tracking with or without background or it can be programmed to
play only the background. When it is selected to play only the background it silences all the currently deciphered
pulse coded signals. This is helpful when there are multiple pulse coded tags being picked up on the same
frequency at the same time.
Class B Device Statement: (Section 15.105 (b) of the FCC Rules)
“Note: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
oConnect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
oConsult the dealer or an experienced radio/TV technician for help.”

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Contents
GettingStarted page 8
ReceiverControls: page 9
1.0 FREQ - Frequency Entry Mode page 12
2.0MainMenu page 13
2.1SETUPMenu page 13
2.1.1Clock page 13
2.1.2 Defaults page 14
2.1.2.1 Aerial Defaults page 14
2.1.2.2 Stationary Defaults page 15
2.1.3 Backlight page 18
2.1.4 Memory page 18
2.1.4.1 Memory Remaining page 18
2.1.4.2 View Memory page 18
2.1.4.3 Delete Memory page 20
2.1.5 Stat Hold (Stationary Hold) page 21
2.2 MANUAL Mode page 21
2.3 AERIAL Mode page 22
2.4STATIONARYMode page 25
2.4.1 The Stationary Logging Flowchart page 29
2.5PCMode page 30
2.6 CLONE Mode page 30
2.7 Ext Data page 31
2.7.1 RDP – Remote Data Platform page 31
2.7.2 Goes – Geostationary Operational Environmental Satellites page 31
3.0 TEST - View of the “Battery” Voltage page 32
4.0 GPS - Viewing/Activating GPS Data page 33
5.0 ONE - Selecting a single ID for Audio page 33

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6.0 ALL - Selecting all IDs for Audio page 34
7.0 NONE - Silencing all IDs from Audio page 35
8.0 ADDFR - Adding a Frequency to the Scan Table page 35
9.0 DELFR - Deleting Frequencies page 35
10.0 MERGE - Merging Frequency Tables page 35
11.0 RECORD - Recording Data page 36
12.0 PC - Downloading Data page 36
12.1 Com Port (Settings Menu)page 36
12.2 Establish communication between the R4520C and the Computer page 36
12.3ATSWinRec page 38
12.3.1 First Time Start Up page 38
12.3.2 Offloading Data page 39
12.3.3 View / Edit Default Configuration page 41
12.3.4 View / Edit Frequency Tables page 42
12.3.5 Delete Data page 44
12.3.6EXIT page 44
13.0 Setting Aerial Scan Rate page 44
14.0 Setting Stationary Time Out page 44
15.0 Setting Stationary Scan Time page 45
16.0 Offloaded Data Format page 45
17.0 Charging the Batteries page 47
18.0 EXT – External Data Output page 47
18.1 Data Format and Translation page 48
18.1.1 BINARY DATA page 48
18.1.2 GOES Translated Output Format page 49
APPENDIX I – JULIAN DATE CALANDARS page 51-52

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Getting Started:
When you first turn on the power, the receiver will display Advanced Telemetry Systems, the receiver model and
the two version numbers of the receiver software. The display will then go to the main menu:
Menu Items:
Low Battery indicator: This flashes LOW / BAT when the supply voltage drops below 11.5 volts. This indicator will
be absent if the supply voltage is greater than the 11.5V
GPS indicator: The status of the GPS is displayed in the upper right corner of the screen. The messages indicate
the following:
GPS (non flashing) – The GPS is on, and there is a valid GPS fix.
GPS / OFF – The GPS is turned OFF.
NO / FIX – The GPS is attempting to acquire a valid GPS fix.
GPS / ERR – The GPS has not been able to get a valid GPS fix within 5 minutes.
NO / GPS – The GPS has not been able to get a valid GPS fix after 15 minutes, or there is no signal out of the
GPS, or the GPS is turned OFF.
If a valid GPS fix is found during NO / FIX, GPS / ERR, or NO / GPS the indicator will change to a non flashing
GPS indicator.
MANUAL: This mode can be used to check out tags or to check on an individual frequency. Frequency scanning is
not available in this mode. To save a target in the manual mode, Record would need to be activated.
AERIAL: Designed for tag location using aircraft. While scanning a table, no information will be recorded unless
Hold is activated. The Hold button is used to toggle between scanning the frequency table, and to hold the
scanning of the frequency table. When Hold is activated, the scanning of the frequency table stops and is held for
the frequency shown in the screen. In Hold, all available information will be continually stored. Tag ID, frequency,
signal strength and time are stored to memory when the operator exits Hold or activates Record. In Hold,Record
needs to be activated when no ID is detected but a Tag can be heard. Aircraft location is also recorded if GPS is
activated. An optional GPS antenna is required to use the GPS feature.
STATIONARY: This mode is used to monitor tags passing a site or presence / absence of tags. The time,
frequency, signal strength, tag ID, and the number of valid tag ID detections per store period are stored. Scanning
is enabled, GPS is disabled.
PC: Used to off load data, send/receive frequency tables and to send / receive receiver programming parameters.
The supplied ATSWinRec software and serial cable must be used with this option.
CLONE: Using the optional blue cable, frequency tables and default settings may be cloned from one receiver to
another receiver.
SETUP: Used to access the SETUP Menu.

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Receiver Controls:
Receiver controls are shown in the figure below. Most are self explanatory. The RF Gain control is normally set to
full clockwise for maximum sensitivity. RF Gain may be reduced for close in searching or while direction finding.
The Audio control should be set for a comfortable level. Its setting does not affect detection sensitivity. Any
monaural headset with a 0.25 inch jack may be used. Most users prefer headsets with muffs to reduce external
noise from wind or aircraft. Inserting the headset jack disables the internal speaker.
The AUX connector is used to interface antenna switches or other controlled devices.
Most input and control of the receiver is done through the keypad. The keypad is shown below:

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At startup the cursor will be on the MANUAL position.
To maneuver through the Menu items, use the or the keys to move the cursor to one of the menu items.
Both keys move the cursor. One does it in a forward direction and the other is in a reverse direction.
Once the cursor is on the desired menu item, pressing “ENTER”will activate that item.
To access the upper functions on the keypad first press the “SHIFT”key followed by the desired function key.
Note: The “SHIFT”key will not be activated if pressed simultaneously with another key.
Pressing the wrong key or entering invalid data will produce the response:
NOT an Option
or
OutofRange
Functions:
MENU – Enters the Main Menu.
FREQ – Enters the Frequency Menu.
GPS – Enters the GPS Menu.
TEST – Tests internal Battery Voltage Level or External Power Supply Voltage Level.
ONE – Singles out one code to be played by the audio as it is decoded while it silences all other decoded codes.
This is done in Manual and Aerial Hold modes.
ALL – Turns off any audio filters that had been enabled so all codes will be played by the audio. This is done in
Manual and Aerial Hold modes.
NONE – Silences all codes to be played by the audio as they are decoded. This is done in Manual and Aerial Hold
modes.
VIEW – Scrolls the detected tag IDs displayed on the screen up by one line. This is done in Manual and Aerial
Hold modes when the list of detected tag IDs is greater than six.
VIEW – Scrolls the detected tag IDs displayed on the screen down by one line. This is done in Manual and Aerial
Hold modes when the list of detected tag IDs is greater than six.
ADDFR – Adds a frequency while Aerial Scanning.
MERGE – Merges frequency tables for Aerial or Stationary Scanning.