E.F. Johnson Company 5100 Series, Сборка и испытания

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3-12 PC Tune Test Procedures for 5100 Series Portable Radios August 2008
PC Tune Screens
3.5 Tuning Options
The Tuning Options area is shown in Figure 3.12
Figure 3.12 Tuning Options
When the Tuning Mode is enabled, you can use the tabs described below to view current
values, then use the up/down arrows and slide bars to make adjustments.
Note For increased accuracy, use of the up/down arrows is recommended over the slide bars,
unless otherwise directed by EFJohnson Technologies.
• DAC Channels
Do not use. Used in depot only.
• Pendulum
Used to fine tune the radio transmit and receive frequencies
• Tx Modulation
Used to set transmit modulation levels across the radio’s entire frequency range
• Tx Power
Used to set transmit power levels across the radio’s entire frequency range
• ADC
Used to set high/low voltage thresholds and hot/too hot temperature thresholds
Users are recommended NOT to alter these settings.
• Squelch
Used to set the radio’s wideband/narrowband squelch/unsquelch thresholds
CAUTION !