The service menu is not an extension of the regular user menu. It controls fundamental engineering parameters.
Mastering the AnyTone AT-5555N II Go to product viewer dialog for this item. : A Comprehensive Guide to Service Menu Operations AnyTone AT-5555N II
Warning: Making improper adjustments in this menu can lead to poor transmission quality, permanent component damage, or a completely non-functional radio. How to Access the AT-5555N II Service Menu anytone at5555n ii service menu work
Controls audio modulation levels. Dropping values close to zero can clean up distortion, while raising them maximizes swing. RFG (RF Gain)
: Key the microphone (PTT) to see the current value of the selected item. The service menu is not an extension of
: Gently key the microphone (press PTT) to reveal the numeric value assigned to that parameter.
If your modulation is too light or too heavy, adjust these levels. : A Comprehensive Guide to Service Menu Operations
: Ensure your DC bench power supply is delivering a stable 13.8V DC under load. If your power supply drops voltage when you transmit, your service menu adjustments will be inaccurate.
: Sets the Peak Envelope Power (PEP) for Single Sideband. 4. Modulation and Deviation (AM-M / FM-D)
: Controls the depth of the audio injected into the AM carrier. Setting this too high causes "clipping" and splatter, which distorts your signal and bleeds onto neighboring channels.
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