Mid-tech RX 400p, User Manual

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RX 400p
98-05044 2-6
R1
The RX 400p stores the current primary beacon in memory so that it is available
upon subsequent power-up. You may force a new Global Search at any time using
the display and keypad by selecting the
Auto Tune@
menu item as discussed in
Section 4.12.2.
2.4.1.4 Manual Tracking
In Manual tune mode, you may select a specific frequency and bit rate for the
receiver to tune, or specify the frequency only, allowing the RX 400p to identify the
correct MSK bit rate on its own. This mode of operation is most useful when
working in an area where you know the frequency though not necessarily the MSK
bit rate of the closest beacon.
The RX 400p also provides the capability to select a beacon by name from the World
Beacon Table stored within receiver memory. This feature is discussed in more
detail in Section 4.12.2 and 4.12.2.1.
2.4.2 Receiver Performance
The Signal to Noise Ratio (SNR) best describes the internal SBX-2 beacon receiver
performance. The SNR, measured in dB, is the height of the signal above the noise
floor. The higher the SNR, the more successfully the beacon receiver is
demodulating the signal. You can easily monitor the SNR in the Beacon Status
menu.
Table 2-1 describes the beacon receiver quality of reception with respect to the SNR
reading.