Anytone At5555n — Ii Service Menu Updated

Since you requested a "full paper" style breakdown regarding the updated service menu for the Anytone AT-5555N II (and its variants like the CRT SS 7900 or Maverick MC-7900), I have compiled a comprehensive technical guide below.

Press and hold the FUNC button while turning the power back on.

Unlocking the Full Potential of the Anytone AT5555N II: A Guide to the Updated Service Menu anytone at5555n ii service menu updated

🎥 Option 3: Video Concept Script (Best for TikTok/YouTube Shorts) Visual: You sitting in front of your AnyTone AT-5555N II radio with the camera focused on the digital face.

CH-52 (RFG): Adjusts the RF Gain threshold. Increasing this value (e.g., from a default of 86 to around 105) can help reduce background static and "S7 noise" on newer units. Since you requested a "full paper" style breakdown

| Menu Code | Function | Description & Notes | | :--- | :--- | :--- | | S-01 / PA | TX Power Adjustment | Sets the maximum RF power output. usually adjustable for High/Mid/Low bands. Caution: Setting this too high can destroy the final transistors (RD70/RF transistors). | | S-02 / AS | ALC Level | Automatic Level Control. Prevents over-modulation. If set too low, audio will be quiet; too high, audio will distort. | | S-03 / SO | S-Meter Sensitivity | Calibrates the signal strength meter. Requires a calibrated signal generator. | | S-04 / FT | Frequency Tolerance | Adjusts the reference oscillator voltage (VC voltage). Used to correct off-frequency transmission. Connect a frequency counter to the antenna port and adjust until the carrier is exactly on frequency (e.g., 28.500000 MHz). | | S-05 / BT | Battery Voltage Display | Calibrates the voltage readout on the LCD display. Use a multimeter on the power input and adjust menu to match. | | S-06 / DE | Deviation Adjustment | Sets the FM deviation level. Critical for ensuring your voice is intelligible and not "clipped." | | S-07 / SQ | Squelch Threshold | Sets the point where the squelch opens (often set to 0.15uV or 0.2uV). |

: This controlled the local oscillator offset. Elias learned to adjust this first to get close to the target frequency before fine-tuning with the Modulation (IC9) : He navigated to the CH-52 (RFG) : Adjusts the RF Gain threshold

Changing Values: While holding the PTT, rotate the Channel Selector to adjust the value up or down.