Fig 1. ST-21-200A/ST-21-200L shown with option 710 (IDC ribbon cable interface to host)
|
Fig 2. ST-21-200A/ST-21-200L shown with option 730 (direct mounting interface to the
host's printed wiring board)
|
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. By selecting and
using these Argos certified packages, the user avoids the Argos certification process. The
Telonics module handles all Argos systems timing issues, 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.
Key Features - ST-21-200A and ST-21H-200A
- Provides uplink capability for any combination of ID codes, RF frequencies, and repetition
periods, all under host control
- Supports up to 7 independent Argos data buffers that the host can populate in real-time
- Transmits variable-length Argos messages with either 20 or 28-bit ID codes
- Serial interfaces supports TTL levels and baud rates from 300 to 9600
- Argos certification allows researchers to forgo the rigorous certification process
- Auto repeat feature allows the ST-21-200A to repeat data without host intervention
- Failsafe feature alerts users upon communication link or host failure
Key Features - ST-21-200L and ST-21H-200L
- Transmits the minimum Argos message as required by the Argos Specifications.
- Can support either 20 or 28-bit Argos ID codes.
- Argos certification allows researchers to forego the rigorous certification process
- Shutdown mode through use of an external switch (user provided)
- Flexible transmitter duty cycling programmable with TPP (sold separately). TPP configures
the duty cycles and is also required for setting the transmitter's clock after the power supply
has been disconnected.
Models
| Model |
Size (in, mm) |
Weight (g) |
Low Power (mW) |
High Power (mW) |
Capabilities |
| ST-21-200A |
2.23 x .68 x .43 in.
5.65 x 1.75 x 1.08 cm |
5-7 |
500 (Typ) mW |
630 (Typ) mW |
Location and Data Transfer Capability |
| ST-21H-200A |
2.23 x .68 x .43 in.
5.65 x 1.75 x 1.08 cm |
5-7 |
500 (Typ) mW |
800 (Typ) mW |
Location and Data Transfer Capability |
| ST-21-200L |
2.23 x .68 x .43 in.
5.65 x 1.75 x 1.08 cm |
5-7 |
500 (Typ) mW |
630 (Typ) mW |
Location Only, No Data Transfer Capability |
| ST-21H-200L |
2.23 x .68 x .43 in.
5.65 x 1.75 x 1.08 cm |
5-7 |
500 (Typ) mW |
800 (Typ) mW |
Location Only, No Data Transfer Capability |
Specifications
ST-21-200A and ST-21-200L Specifications
Show
Mechanical
Option 710 (IDC cable interface)
| Size | 2.23 x .68 x .43 in.
5.65 x 1.75 x 1.08 cm |
| Weight | 7 grams |
Option 730 (PWB mount)
| Size | 2.2 x .65 x .35 in.
5.59 x 1.65 x .88 cm |
| Weight | 5 grams |
ST-21-200A/L Electrical
| Supply voltage, minimum | 2.85 V |
| Supply voltage, maximum, low power | 4.30 V |
| Supply voltage, maximum, high power | 4.30 V |
| Output Impedence | 50 Ω |
| Low power level | 500 (Typ) mW
27 ±2 dbm |
| High power level | 630 (Typ) mW
28 ±2 dbm |
| Transmit Current | 475mA max (low power)
600mA max (high power) |
| Minimum operating temperature | -30° C |
| Maximum operating temperature | 70° C |
| Argos transmission frequency | 401.630 to 401.680 MHz (Argos)
401.618 to 401.622 MHz (Brazil SCD) |
| Modulation (BPSK) | -1.1 to +1.1 ±0.1 Radians |
| Quiescent current, typical | 5 µA |
| Spurious emissions | -40 dBc |
ST-21H-200A and ST-21H-200L Specifications
Show
Mechanical
Option 710 (IDC cable interface)
| Size | 2.23 x .68 x .43 in.
5.65 x 1.75 x 1.08 cm |
| Weight | 7 grams |
Option 730 (PWB mount)
| Size | 2.2 x .65 x .35 in.
5.59 x 1.65 x .88 cm |
| Weight | 5 grams |
ST-21H-200A/L Electrical
| Supply voltage, minimum | 2.85 V |
| Supply voltage, maximum, low power | 4.30 V |
| Supply voltage, maximum, high power | 4.30 V |
| Output Impedence | 50 Ω |
| Low power level | 500 (Typ) mW
27 ±2 dbm |
| High power level | 800 (Typ) mW
29 ±2 dbm |
| Transmit Current | 570mA max (low power)
750mA max (high power) |
| Minimum operating temperature | -30° C |
| Maximum operating temperature | 70° C |
| Argos transmission frequency | 401.630 to 401.680 MHz (Argos)
401.618 to 401.622 MHz (Brazil SCD) |
| Modulation (BPSK) | -1.1 to +1.1 ±0.1 Radians |
| Quiescent current, typical | 5 µA |
| Spurious emissions | -40 dBc |
Manuals
ST-21-200A and ST-21H-200A User Manual
ST-21-200L and ST-21H-200L User Manual
Related Products
Coaxial Cables
Coaxial Connectors
Argos Receiving/Transmitting Antennas
Related Links to Information on Other Websites
Argos System Manual
Getting started with Argos
Argos Publications
Regulatory Information
FCC Form 422 Sample
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
Service Commitment
Since 1970, Telonics has built a reputation based on product quality, product support, service,
and customer satisfaction. Telonics strives to produce the highest quality products, and to
support those products accordingly.
Because of extreme conditions and the unpredictable nature associated with most telemetry
applications, problems occasionally arise. Most problems can be resolved quickly. In all cases,
we hope to be able to work in partnership with users to resolve problems to the user's
satisfaction and to uphold our demonstrated commitment to excellence. If problems should arise,
all products must be returned to our factory for failure analysis.
Warranty: Argos Transmitting Subsystems
Show
Telonics manufactures and offers for sale electronic assemblies for OEM applications. These
packages and assemblies are designed to be integrated into complete systems with appropriate
power supplies, packaging and in some cases user hardware and firmware.
Telonics warranties only the following with respect to the Subsystem:
1.1 The electronics assemblies are warranted to be free from defects in materials and workmanship
and to perform to the operational specifications over the specified operating temperature range as
published by Telonics for one year from date of purchase.
Limitations:
Telonics warranties only the electronic assembly that is provided to the purchaser.
It is the purchaser's obligation to make certain that they order the correct size and type of
electronic assembly for the application. 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
Subsystem.
The user bears all responsibility for selection of the appropriate power supply, packaging and
pressure and water proofing of the final subsystem.
In applications where the purchaser must supply firmware control over an electronics module, the
purchaser is fully responsible for assuring proper integration and testing of the final subsystem.
No warranty is expressed or implied with regard to abnormal events or damage due to human actions.
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 electronic assembly, 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 Subsystem.
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. Electronic
assemblies must be returned to Telonics in the configuration they are were in when shipped to the
purchaser. Assemblies should be returned without any customer hardware or packaging and with the
original interface connectors supplied by Telonics. 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 electronic
assembly to and from Telonics under this warranty.
Upon the timely return to our facility within the applicable time frame noted above, if the
exterior packaging integrity and/or internal electronics (excluding batteries) are defective, the
Subsystem 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 electronics
assembly which is resold or otherwise transferred from the original purchaser to another party.
The warranty will be extended to customers who purchase the electronic assemblies directly from a
Telonics-authorized distributor.
