Quasonix TIMTER Installation And Operation Manual page 19

1.3.17 Clock Generator Output Option – CG
The standard TIMTER includes internal clock and data generators, generally used for system test. The CG option
enables this internal clock out of the unit on the primary MDM-15 connector. The assignment of output pins
depends on the other features selected.
1.3.18 Dual Input Data Option – D2
Allows the user to use two independent input data streams with one connected to the normal data input and the other
(channel 2) connected to the clock input. To enable operation using these two streams, the user sets the D2
*command* to 1. Both streams operate in clock free mode, and it is strongly suggested that the bit rate (BR) for both
channels be set to 'Auto.'
1.3.19 Dual Power Option – DP
The DP option provides two software-programmed, hardware-actuated settings, designated as "high power" and
"low power". There are 64 choices for "high power" and 64 choices for "low power." Valid range is 0 to 31.5 dB in
0.5 dB steps.
1.3.20 Digital Switch Box Option – DSWBX
The TIMTER™ provides a standard configuration interface that is easily accessible via a computer terminal. Some
users prefer configuration via an external switch box. The 2
digits used to display the mode and frequency. This includes a total of five digits of frequency step up or down, in
MHz, and one digit of mode selection, in terms of the ARTM "Tier" number. There is also a channel selector for
channel 1 or channel 2. Two channel operation is only valid when connected to a Dual Telemetry Transmitter.
Standard transmitters default to Channel 1. An 18" MDM-9 to MDM-9 cable harness is included with the switch
box. (For use with the P9 option)
1.3.21 Frequency Offset – FO
This option is used to set frequencies that are NOT aligned to the synthesizer step size for their units, typically 500
kHz. If the FO option is present, the resolution is 1 Hz (0.000001 MHz). The desired offset may be typed with the
frequency using the FR command.
1.3.22 High Bit Rate Option – HR
The standard TIMTER supports bit rates from 0.1 to 28 Mbps in SOQPSK-TG and MULTI-h CPM modes, 0.05 to
14 Mbps in PCM/FM (Tier 0) mode and in all legacy modes. The HR option increases the bit rate to a maximum of
46 Mbps (23 Mbps for PCM/FM). (The maximum bit rate with a Clock Free transmitter is 35 Mbps for SOQPSK-
TG and MULTI-h CPM modes; 23 Mbps for PCM/FM and all legacy modes.) Refer to the CF option for
information about the Clock Free option. Refer to Table 11 for bit rate comparisons by mode.
Table 11: Standard Bit Rates Compared to Low/High Rate Options
ARTM Tier 0 Modulation
(PCM/FM)
ARTM Tier I Modulation
(SOQPSK-TG)
ARTM Tier II Modulation
(Multi-h CPM)
11 Quasonix, Inc.
nd
Standard Bit Rate With Low Rate Option
0.05 -14 Mbps Down to 0.025 Mbps
0.1 — 28 Mbps
Down to 0.050 Mbps
0.1 — 28 Mbps
Down to 0.050 Mbps
TIMTER™ Multi-mode Dual
Telemetry Transmitter
Generation Quasonix switch box provides six LED
With High Rate Option
-LR -HR*
Up to 23 Mbps
Up to 46 Mbps
Up to 46 Mbps