Galaxy DX 959, Service Manual, Page: 6 / 35

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order to increase the signal-to-noise ratio of weak signals. While you will notice a dramatic
reduction in the “rushing” sound when this filter is activated, it does not have much effect on the
signal-to-noise ratio of strong signals. It is mostly used for SSB reception.
14. MODE SWITCH
This control allows you to select one of the following operating modes : USB/AM/LSB .
15. TONE SWITCH LO/MED/HI
This switch changes tone quality in receive only. In LO position, bass is increased and in HI
position, treble is increased.
16. CHANNEL DISPLAY
The channel display indicates the current selected channel.
17. SWR ALERT LED
This LED lights red when your SWR is higher than about 3:1. This is not an exact indicator of 3:1
SWR, but it is an indication that you should check your SWR reading.
18. R.B. LED
This lights green when the Roger Beep is on.
19. RX/TX LED
This LED lights green during receive and red during transmit.
20. FREQUENCY COUNTER
This display indicates the frequency of the selected channel.
2.1.2 REAR PANEL
Figure 2-2 represent the location of the following connections :