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Argos Electronics and Transmitting Antennas

Introduction

Telonics has developed two Argos electronic modules designed for integration into customer provided systems. Meteorologists and oceanographers often develop highly specialized oceanographic buoys, meteorological balloons, and associated data collection instrumentation. Telonics manufactures and sells several electronic assemblies modules for integration into these user-designed systems as an Argos data transfer component.

These modules are both controlled by a Telonics onboard microprocessor. The user has the ability to track location or to construct a data stream for uplink to the satellite using the Argos system. By selecting and using these Argos certified packages, the user avoids the Argos certification process. The Telonics module handles all Argos systems issues timing, and transmission messaging parameters. This allows the user to concentrate efforts on other aspects of the experiment. This methodology is especially useful for users who will be deploying on a small to medium numbers of systems and for time critical applications.

Models

How to use this table: The information contained in the following table is provided in a manner to allow comparison of models. To sort by model attributes i.e. weight, CLICK ON THE COLUMN HEADING. To obtain more specific information for a model, CLICK ON THE MODEL NUMBER.

Model Size (in, mm) Weight (g) Low Power (mW) High Power (mW)
ST-21-200A 2.23 x .68 x .43 in.
5.65 x 1.75 x 1.08 cm
5-7 450 (Typ) mW 630 (Typ) mW
ST-21-200L 2.23 x .68 x .43 in.
5.65 x 1.75 x 1.08 cm
5-7 450 (Typ) mW 630 (Typ) mW

Coaxial Cables
Coaxial Connectors

Legacy Products

Telonics still supports and refurbishes these products, but no longer sells them new:

ST-20-200A
ST-20-200T
ST-20-200V
ST-20-200L
ST-13
ST-16

Argos Omni-directional Antennas for use with Argos Electronics Modules/Uplink Receivers

In the chart below are examples of Argos Antennas made at Telonics. We are able to make other antenna configurations to meet your needs and specifications. Call our laboratory for more details.

Telonics Part Number Description Gain Connector Type Antenna Length

CM-002420-401
- Quarter wave, whip antenna without ground plane.
- Proper operation requires that the user supply adequate ground plane.
- Can be mounted directly on the transmitting unit, but not on a coax cable unless ground plane is provided by the user.
- Must be protected in a weatherproof housing, or buoy.
0 dBd with ground plane BNC Male 7.75 in

CM-002421-400
- Half wave, ground plane independant, whip antenna designed for applications where ground plane and radials are not practical.
- Can be installed directly on the unit or on the end of a cable without additional ground plane.
- Excellent antenna for "spar" buoys.
- Must be protected in a weatherproof housing, or buoy.
0 dBd BNC Male 12.75 in

CM-001331-001
- Commonly known as the "spider antenna".
- Designed for spherical buoys at least 8 inches in diameter.
- Ground plane radials make the operation of the antenna virtually identical to a dipole.
- Must be protected in a weatherproof housing, or buoy.
0 dBd BNC Male 7 in tall
10.5 in dia.

CM-001968-001
- Same electrical characteristics as the half wave ground plane independant and does not require additional ground plane.
Packaged for the marine enviornment and situations where salt spray is present
- 20 ft. RG-58 cable is included with PN# CN-000170-001 BNC male connector
- The antenna and cable can be deployed outside, but PN# CN-000170-001 BNC male connector is not waterproof so the connection to the transmitting units must be protected from the elements.
- Good choice for installation in enclosed cabin areas on board ships.
0 dBd BNC Male 24.5 in total
18.5 in from tip to mount plate

CM-001968-002
- Same electrical characteristics as the half wave ground plane independant and does not require additional ground plane.
- Packaged for the marine enviornment and situations where salt spray is present
- 20 ft. RG-58 cable is included with PN# CN-001241-001 TNC male connector
- PN# CN-001241-001 TNC male connector is weatherproof so the connection to the transmitting unit can be outside in exposed areas.
- Good choice for installation on the deck of ships.
0 dBd TNC Male 24.5 in total
18.5 in from tip to mount plate

Telonics warranties UHF Receiving Antennas

1.1 UHF receiving antennas are warranted to be free from defects in materials and workmanship and to perform to the operational specifications as published by Telonics for a period of 90 days from the date of initial shipment of the antenna by Telonics.

Limitations:
It is the purchaser's obligation to make certain that it orders the correct size and type of antenna for the particular application, and no warranty is expressed or implied for any failure to meet operational specifications due in whole or in part to use of an incorrect size or type of antenna.

No warranty is expressed or implied with regard to abnormal events or damage due to human actions such as gunshot damage, vehicle encounters, etc. Further, no warranty is expressed or implied with regard to damage resulting from misuse, accidents, unauthorized service, extreme conditions, or other causes not specifically enumerated herein.

The entire risk, as to the results and performance of the antenna, is assumed by the customer. Neither Telonics, nor its suppliers, shall have any liability to the customer or any other person or entity for any indirect, incidental, special, or consequential damage whatsoever, regardless whether Telonics has been told of the possibility of such damages or that such damages might be foreseeable. Telonics has no responsibility or liability for the claims of any third party. Telonics' and its suppliers' maximum aggregate liability shall not exceed the amount paid by the customer for the antenna.

Exercising the Warranty
If a defect occurs, return the Subsystem to Telonics within the applicable time frame noted above at the following address: TELONICS, 932 E. IMPALA AVENUE, MESA AZ USA 85204-6699. Telonics does not assume responsibility for loss or damage to equipment during shipment. Telonics does not assume responsibility for delays resulting from shipment on commercial or private carriers. We insure all equipment shipped from our facility and suggest that shipments to Telonics also be insured. Customer shall arrange for and pay all shipping, insurance and related charges incurred in the shipment of Subsystems to and from Telonics under this warranty.

Upon the timely return to our facility within the applicable time frame noted above the antenna will be replaced or repaired, at Telonics' sole discretion, at no cost to the customer, other than shipping charges. This remedy is the exclusive remedy. This product is supplied without any further warranties or conditions, expressed or implied, including warranties of merchantability, quality or fitness for particular reason or those arising by laws, statutes or trade usage or course of dealing.

The above warranty extends only to the original purchaser and does not cover any antenna which is resold or otherwise transferred from the original purchaser to another party. The warranty will be extended to customers who purchase the antenna directly from a Telonics-authorized distributor.