TIMTER™ Multi-mode Digital Telemetry Transmitter
17
Quasonix, Inc.
1.3.41 Parallel Port Mode Selection Option
– PM
This option adds a parallel port in the form of an MDM-15 connector for manual mode selection. The PM option
requires the addition of a Quasonix MDM-9 Accessory Board. Consult Quasonix to order the PM option.
1.3.42 Hardware Preset Option
– PS (PS2, PS4, PS8, or PS16)
The TIMTER™ supports one or more hardware presets. A single preset defines the complete state of the transmitter,
including carrier frequency, modulation mode, data polarity, randomizer state, etc. Without the PS option, the
TIMTER™ supports only one hardware preset, which it reverts to at power-up. The PS in the option string specifies
that the unit supports multiple hardware presets (2, 4, 8, or 16). Presets are engaged by grounding various
combinations of pins on the terminal/parallel control selection. The number of presets available and which pins
engage the presets depend on the other features specified. Due to the limited number of pins available, the PS option
may require the elimination of the RF On/Off pin. Due to firmware part number parsing requirements, the hardware
preset option code must be at the very end of the part number to be valid. On units which use the standard MDM-15
connector, the ZY command displays the connector pinout showing preset pin locations. For additional information,
refer to Appendix A – Preset Option.
1.3.43 Power Output Option
– PW020
When ordered with Power Code 00, this option enables RF output at 20 mW (+13 dBm).
1.3.44 Recall Holdoff Option
– RH
If this option is enabled, AND the recall holdoff pin is held low on powerup, THEN the software will do an ‘RF 0’
to prevent the RF output from coming on until the user explicitly enters ‘RF 1.’ If the pin is high, then this option
has no effect.
1.3.45 Randomizer Output Option
– RN
The standard TIMER includes the IRIG-106 randomizer for the RF output. The IRIG-106 randomizer is controlled
through the serial interface. The RN option brings the randomized data out on the primary MDM-15 connector. The
assignment of output pins depends on the other features selected. Consult Quasonix for details.
1.3.46 Spacecraft Tracking and Data Network Option
– STDN
This option supports the PM/BPSK mode (Spacecraft Tracking and Data Network mode).
1.3.47 Variable FIFO Depth Option
– VF
This option enables the VF command which allows the user to set the FIFO depth on the transmitter for controlling
latency time between bits in and bits out. The range is 0 to 255 with 128 being the default. If no value is entered, the
current value displays.
1.3.48 Variable Power Option
– VP
The standard TIMTER™ operates at its full rated RF output power. The software-based VP option provides 64
discrete power level settings, approximately 0.5 dB apart. For TIMTER packages of 2 cubic inches or less, the VP
option provides 32 discrete power level settings, approximately 1.0 dB apart.
Содержание TIMTER QSX-V Series
Страница 39: ...TIMTER Multi mode Digital Telemetry Transmitter 31 Quasonix Inc Figure 22 Baseband Signal Timing ...
Страница 101: ...TIMTER Multi mode Digital Telemetry Transmitter 93 Quasonix Inc Figure 41 Shock Pulse X axis Negative ...
Страница 109: ...TIMTER Multi mode Digital Telemetry Transmitter 101 Quasonix Inc Figure 42 Transmitter Clock and Data Logic ...