Microwave Telemetry PTT FAQs
- How do I place an order?
- What is the lifetime of my battery powered transmitter?
- How do I calculate the duty cycle for the NANO or multi-season NANO timer?
- How do I set up the proper sensor data formatting for my PTT?
- How do I test my PTTs?
- How do I decode my data?
- CH #1 The internal temperature of the unit
- CH #2 The battery voltage
- CH #3 A counter that increments by one on each transmission
- CH #4 Activity
- CH #1 Spare (normally 0)
- CH #2 The current hour of present ON part of duty cycle
- CH #3 A current cycle of present season
- CH #4 The current season
- How do I know if mortality mode Ground Track™ has been initiated in my PTT?
- How do I store my PTTs?
- Can my PTTs be refurbished?
- How do I send my PTTs back to you?
- Can I become your agent or distributor?
- Can I use one of your transmitters to track my spouse?
How do I decode my data from PTTs with 20 bit ID numbers?
The sensor information on the PTT-100 transmitters with 20 bit ID numbers is transmitted in frames of four eight bit sensors, i.e., a total of 32 bits per transmission. In order for you to interpret the data easily, you should ensure that Service Argos is passing the data to you in this format.
Simply request that they decode your data as follows:
4 x 8 bit sensors with A1 processing
This should be defined in your Argos technical file.
Standard transmitters are set up to transmit information as follows:
Figure 1 shows examples of the sensor information as transmitted to the user.
On every fourth transmission, the normal sensor frame is replaced by a special information frame. This is formatted as follows:
DS Format
00123 04321 8 4 D 2 1996-07-12 16:34:55 65.588 251.759 0.000 401652330
1996-07-12 16:29:19 1 91 124 79 09
1996-07-12 16:30:34 1 00 01 02 03
1996-07-12 16:31:48 1 90 124 81 09
1996-07-12 16:33:03 1 90 124 82 09
1996-07-12 16:34:18 1 90 124 83 09 *
1996-07-12 16:35:33 1 00 01 02 03 **
1996-07-12 16:38:02 1 90 124 86 09007 msgs 000>-120dB Best: -127 Freq: 652330.3 IQ: 66
Lat1: 65.588N Lon1: 108.241W Lat2: 71.196N Lon2: 140.678W
DIAG Format
04321 Date: 12.07.96 16:38:02 LC:2 IQ: 66
Lat1:65.588N Lon1: 108.241W Lat2: 71.196N Lon2: 140.678W
Nb mes: 007 Nb mes>-120dB: 000 Best level: -127 dB
Pass duration: 523s NOPC : 2
Calcul freq: 401 652330.3 Hz Altitude: 0m
90 124 86 09*Normal information frame
Temp=90 Bat Volts=124 Counter=83 Activity Counter=09**Special information frame
Spare=00 Hour=01 Cycle=02 Season=03
28 bit IDS — with a number value greater than 32768
(See Graphs to decode temperature and battery voltage readings)
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Microwave Telemetry, Inc.
8835 Columbia 100 Parkway, Suites K&L
Columbia, MD 21045
410.715.5292
