: Connect the radio to a dummy load or antenna to prevent damage.
As soon as all segments on the LCD screen light up (within 2 seconds), .
1. Fine Tuning and Oscillator Alignments (Fr0, Fr4, Fr5, Fr9) anytone at5555n ii service menu work
The most common reason people seek out the service menu is to "open up" the radio for out-of-band transmit (e.g., 26-28 MHz or 24-30 MHz). However, on the AT-5555N II, Those are often set via a separate software programming cable and PC utility (like the RT Systems software or the free "AnyTone AT-5555N II Editor"). Confusing the two has led many users to incorrectly tweak the reference oscillator, thinking they were expanding coverage, only to end up with a radio that transmits on 27.000 MHz when the dial says 27.200 MHz.
Test the radio with a wattmeter, frequency counter, or on-air friend before closing the chassis. : Connect the radio to a dummy load
Establishes tracking control for fine steps ending in .x09\text kHz . / lo Local Oscillator (LO) Offset
The Ultimate Guide to the AnyTone AT-5555N II Go to product viewer dialog for this item. Service Menu The AnyTone AT-5555N II Fine Tuning and Oscillator Alignments (Fr0, Fr4, Fr5,
Using a USB programming cable, the software allows you to read the radio's exact data, back up your EEPROM to your computer, and adjust service-level parameters via a graphical interface. Many operators find this method significantly safer and easier, as it clearly lays out the exact numbers, limits, and settings without the risk of accidentally corrupting your radio's firmware with a wrong button press. Pro-Tips for Tuning Your Rig
Adjusts how the Clarifier (RIT/XIT) operates. 4. Noise Blanker (NB) and Squelch