Anytone At5555n Ii Service Menu Updated Free

The service menu on the AnyTone AT-5555N II contains critical alignment parameters that are not documented in the standard Instruction Manual. Crucially, there is no "factory reset" for this menu, so you must record your original values before making any changes. Accessing the Service Menu

To enter the hidden service menu, follow these steps precisely: Preparation: Ensure the radio is powered off.

Power On sequence: Press and hold the [MENU] and [MODE] buttons simultaneously while turning the radio on.

Code Entry: All LCD segments will illuminate for approximately 2 seconds. Within this window, release the buttons and immediately press the top-row keys in this specific order: [RB], [NB], [SCAN], [MEM], then [EMG].

Confirmation: The radio will enter the Service Mode, often defaulting to a specific channel setting (e.g., CH-01). Operating the Service Menu

Navigation: Rotate the [Channel] knob to scroll through the different menu items (there are approximately 59 settings).

Viewing Data: Key the microphone (PTT) to view the current value of a selected menu item.

Adjusting Values: While holding the PTT, rotate the [Channel] knob to increase or decrease the value.

Saving and Exiting: Power the radio off and then back on to store the new values. Common Service Menu Parameters

While most of the 59 items are used for factory alignment, users frequently access specific settings for performance tweaks:

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.

Frequency Alignment: Includes settings such as bfC (BFO frequency adjustment) and loC (Local Oscillator offset) for fine-tuning SSB operation.

Modulation: Includes parameters for AM modulation and AMC clamping levels; lower values typically equate to higher modulation. Summary of Hidden Menus Access Method Common Purpose Standard Menu Long press [MENU] User settings (BEEP, ECHO, TOT, etc.) Expansion Menu Hold [FUNC] + [SCAN] at power-on Resetting frequency ranges (e.g., 25.615–30.105 MHz) Service Menu [MENU]+[MODE] at power-on, then [RB, NB, SCAN, MEM, EMG] Technical alignment (RF Gain, BFO, Modulation)

Are you looking to fix a specific performance issue, such as high background noise or frequency drift? Anytone at-5555n II (version 2) - WorldwideDX Radio Forum

In the world of amateur radio, the Anytone AT-5555N II is a powerhouse, but for those who want to truly master their gear, the standard settings are just the beginning. This story follows a hobbyist's journey into the updated "Hidden" Service Menu—a place where the radio’s deepest secrets are kept. The Legend of the Hidden Menu

For years, the AT-5555 series was known for its reliability on 10 and 11 meters, but the "N II" version brought a more complex digital architecture. One rainy evening, a radio operator named Elias decided to address a nagging issue: his SSB receive quality was slightly "wonky," and his fine-tuning felt stepped rather than smooth. He knew a simple factory reset (holding FUNC + SCAN

while powering on) wouldn't fix the underlying alignment. He needed the Service Menu The Ritual of Access

To enter this restricted space, Elias performed the precise sequence required for the newer firmware: He turned the radio off. He held down the button while powering it back on. Once the screen lit up, he quickly pressed

The display transformed. Instead of channel numbers, cryptic codes like appeared. He was "inside." Tweaking the Soul of the Radio

Elias spent the next hour carefully navigating these updated parameters: : He used this to adjust the frequency of the 10.24MHz BFO

. A slight tweak here brought the SSB clarity back to life, removing the "tinny" sound from distant voices. fr0 to fr9

: These were the limit voltages for fine-tuning. By adjusting these, he ensured that his tuning remained even and smooth across the entire frequency range.

: 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

setting to boost his audio modulation. Finding it at the default of 31, he increased it toward 63, ensuring his voice would punch through the noise on skip. The Aftermath

With the adjustments made, he saved his settings and exited the menu. The radio felt reborn—his transmit was stronger, his receive was crystal clear on LSB and USB, and his frequency was dead-on.

However, Elias left with a word of caution for others: these settings are unique to every individual radio's hardware. Changing them without a frequency counter or signal generator is like "tuning a piano in the dark"—once you lose the factory alignment, it’s hard to find your way back. exact technical steps

to perform a specific adjustment, such as opening the bands or boosting your modulation? Anytone 5555n Ii Service Menu - Google Groups

Here are a few post templates tailored for different platforms regarding the AnyTone AT-5555N II Go to product viewer dialog for this item. service menu.

📝 Option 1: Informative & Cautionary (Best for Forums/Facebook Groups)

Title: ⚠️ Updated Guide: How to Safely Access & Use the AnyTone AT-5555N II Service Menu Thinking about tweaking your modulation or power on the AT-5555N II

? Proceed with caution! There is no master reset for the parameters in this menu once you change them. Here is the updated step-by-step to get in safely:

Preparation: Hook up your radio to an antenna or dummy load first. anytone at5555n ii service menu updated

The Key Combo: With the radio powered OFF, press and hold the MENU and MODE buttons simultaneously.

The Sequence: Turn the radio ON while holding them. As soon as it powers up, release them and quickly press the other buttons in a line from DW all the way down to EMG.

Crucial Step: Scroll through the settings using the channel selector. Grab a pen and paper or open a spreadsheet and WRITE DOWN ALL FACTORY VALUES before turning any dials!

Adjusting: To change or view a parameter's active level, key your microphone. To alter the data, hold the PTT and rotate the channel selector. Power cycle the radio when you are done to save.

Drop a comment below with your stock factory numbers if you are willing to share a baseline for the community! 👇 #AnyTone #AT5555NII #HamRadio #10MeterRadio #RadioMods 📸 Option 2: Short & Punchy (Best for Instagram/X)

⚠️ ATTENTION ANYTONE USERS ⚠️Thinking about jumping into the service menu of your AnyTone AT-5555N II

to peak your power or fix your S-meter? Read this first! 👇

1️⃣ Always hook up a dummy load before transmitting/testing.2️⃣ Access the menu by holding MENU + MODE on startup, then quickly tapping the top buttons in sequence over to EMG.3️⃣ NEVER change a value without writing down your stock factory numbers first. There is no "factory restore" button for these alignment settings! Keep those radios sounding crisp! 🎙️⚡

#HamRadio #AnyTone #CBRadio #10Meter #RadioTech #AmateurRadio

🎥 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.

Audio/Voiceover:"Stop! Before you go turning knobs in the hidden service menu of your AnyTone AT-5555N II

, you need to know this. To get in, you hold MENU and MODE while flipping the power switch, then quickly tap the top row of buttons from DW to EMG.

Once you're in, you will see a list of numbered alignment parameters. But here is the golden rule: DO NOT CHANGE ANYTHING until you have written down every single stock number on a piece of paper! There is no master reset button for these alignment parameters. If you mess up your carrier or modulation limiters without a backup, you're flying blind! Hit that follow button for the specific menu breakdown!"

Which specific parameter are you trying to adjust (like AM modulation or S-meter sensitivity) so I can add those exact steps to your post?

The AnyTone AT-5555N II is a high-performance 10-meter radio, but many of its most critical calibration settings—like power output and modulation—are tucked away in a hidden Service Menu. Because there is no factory "reset" for this specific menu, users must exercise extreme caution when making adjustments. How to Access the Hidden Service Menu

Accessing the service mode requires a specific sequence of button presses during the power-on cycle.

Preparation: Ensure the radio is connected to a dummy load or an antenna to prevent damage.

Initial Combo: With the radio OFF, press and hold both the [MENU] and [MODE] buttons. Power On: While holding those buttons, turn the radio on.

Secondary Sequence: Once the radio powers up, release the initial buttons and immediately press the following top-row buttons in order: [DW], [RB], [NB], [SCAN], [MEM], and [EMG].

Entry Confirmation: If successful, the display should show "FM" (representing the factory menu) or a numerical setting. Navigating and Saving Settings

Scrolling: Use the Channel Selector knob to cycle through different menu items (ranging from 1 to over 50).

Viewing Values: To see the current value of a setting, press the PTT (Push-To-Talk) button on the microphone.

Changing Values: To modify a value, hold the PTT while rotating the Channel Selector. Saving: Turn the radio off to save your changes.

CRITICAL WARNING: Always WRITE DOWN every original value before changing it. There is no software reset for these specific alignment values; if you change them without a backup, you cannot easily restore factory calibration. Key Service Menu Items and Fixes

While the radio lacks official documentation for every item, community testing has identified several critical settings for the AT-5555N II: Description #16 AM High Power Adjusts the peak dead key for AM high power mode. #17 AM Low Power

Adjusts the low power dead key (often set to 2 watts for amp driving). #19 & #20 Modulation Some users set these to "0" to improve AM modulation swing. #52 (RFG) RF Gain Fix

Used to resolve "S5-S7 noise" issues. Increasing this value (e.g., from 86 to 105) can quiet a noisy receiver. Frequency Expansion (Export Mode)

If you are looking to unlock the full 11-meter and 12-meter bands (25.615 to 30.105 MHz), follow this separate procedure: Turn the radio OFF. Hold [FUNC] and [EMG] and turn the radio ON. Rotate the channel knob to select "BAND 2". Long-press [FUNC] until the display shows "rEND". Power cycle the radio.

Here’s what you should do:

Check official sources
Visit the AnyTone official website or the support page for the AT-5555N II. Look for:
- Service manuals
- Firmware release notes
- Technician bulletins
Search on CB/Ham radio forums
Popular communities like WorldwideDX.com, RadioReference.com, or Transmission1 often have updated service menu entries and hidden key combinations shared by users or reps. The service menu on the AnyTone AT-5555N II
Typical service menu access (older models)
On previous AnyTone 5555 series radios, the service menu was often entered by:
- Turning the radio off
- Holding specific buttons (e.g., FUNC + 6 or FUNC + A/F)
- Turning power on while holding them
  This may have changed for the N II version.
Use precise keywords
Try searching:
"AnyTone AT-5555N II service menu key combination"
"AT-5555N II alignment procedure"
"AT-5555N II hidden menu"
Warning
The service menu allows calibration of frequencies, power output, modulation, and S-meter.
⚠️ Do not change values unless you have proper test equipment (frequency counter, power meter, oscilloscope).
Incorrect settings can permanently detune the radio.

If you have a specific issue with the radio (e.g., off-frequency, low power, distorted audio), I can give general troubleshooting steps or calibration theory — just let me know.

Why the "Updated" Service Menu Matters

Older versions of the AT5555N (the first generation) had a notoriously simple, albeit limited, service menu. However, with the "N II" revision and subsequent firmware patches (Version 2.0 and higher), AnyTone has expanded the service menu to include:

Fine frequency calibration (PLL reference adjustment)
High/low power potentiometer bypass (digital power scaling)
AGC (Automatic Gain Control) thresholds
S-Meter calibration
Modulation limiter adjustments

Warning: Entering the service menu voids your warranty if you aren't a certified technician. Power adjustments can damage your final transistors if done improperly. Proceed at your own risk.

Method 2: The "Hidden Key" Method (Newer Firmware)

On some updated mainboards, the entry method has changed to prevent accidental entry:

Turn the radio OFF.
Press and hold the CHAN (Channel) button and the FUNC button simultaneously.
Turn the radio ON.
Release buttons once the service menu appears.

8. Conclusion

The Anytone AT-5555N II service menu is a powerful tool for frequency expansion and alignment. However, the "Updated" versions of this radio have introduced variability in how these menus are accessed. Users should verify their PCB revision before attempting modifications. For precise alignment, always utilize external test equipment (Wattmeter, Frequency Counter, and Deviation Meter) rather than relying on the radio's internal uncalculated display.

End of Technical Paper

Accessing the service menu on the AnyTone AT-5555N II allows you to adjust internal alignment settings like modulation, RF gain, and frequency fine-tuning.

⚠️ WARNING: Record all current values before changing anything. There is no "factory reset" for these specific service parameters. 🛠️ Access the Service Menu Power Off the radio.

Press and hold the [MENU] and [MODE] buttons simultaneously. Power On the radio while holding these buttons.

Within 2 seconds, release them and quickly press the top row of 6 buttons in order from left to right: [DW], [RB], [NB], [SCAN], [MEM], and [EMG].

The radio will enter Service Mode, typically starting at menu item 01. ⚙️ Key Settings & Controls

Navigation: Use the Channel Selector knob to scroll through the 50+ menu items.

View Data: Momentarily key the PTT (microphone) to see the current value of a setting.

Change Data: While holding the PTT, rotate the Channel Selector knob to adjust the value.

Save/Exit: Power the radio off and back on to save your changes. Common Menu Items

CH-52 (RFG): Adjusts the RF Gain floor. Useful if you have high background noise (S5-S7) with no signal; increasing this value (e.g., from 86 to 105) can quiet the receiver.

Modulation: Lower values on AM modulation settings typically result in higher modulation (less clamping).

Alignment: Settings like bfC and fr0–fr9 control the BFO and fine-tuning voltages for different modes. 🔓 Frequency Expansion (11m Mode)

If you need to switch between the 10m amateur band and the expanded 11m band: Power Off the radio. Hold [FUNC] and [EMG] while powering on.

Turn the channel knob to select BAND 2 (expanded) or BAND 1 (10m).

Press [FUNC] to confirm; the screen will show rES then rEND.

For advanced PC-based adjustments, ensure you have the correct programming cable and software specifically for the "N II" version.

Method B: The "Power + Band" Method (Updated Firmware)

On newer N II boards, the frequency expansion and service alignment are separated.

Power the radio OFF.
Press and hold the BAND button.
While holding BAND, turn the radio ON.
The display will typically flash or show a frequency band code (e.g., H, L).
Rotate the VFO knob to select the desired band expansion (often used for MARS/Cap modifications).

Final Verdict: A Technician's Dream

The AnyTone AT5555N II is a marvel of modern radio design, but the updated service menu transforms it from a consumer appliance into a technician's bench radio. Whether you are compensating for temperature drift or tuning your modulation for pristine broadcast audio, the hidden menu offers granular control that rivals radios costing three times as much.

Remember: Document your original settings before changing anything. Use a calibrated wattmeter, frequency counter, and dummy load. And finally—don’t transmit into a mismatched load while tweaking P-07. You’ve been warned.

Now that you have the updated service menu map, go forth and align your AnyTone to perform better than the day it left the factory.

Disclaimer: This article is for informational and educational purposes only. Unauthorized modification of radio transmitters may violate FCC regulations in the United States or local laws in your jurisdiction. Always operate within legal band limits and power restrictions.

The AnyTone AT-5555N II service menu (updated v3 and v2) is a hidden "Factory Menu" used for internal hardware alignment and calibration. Unlike the standard background function menu, this menu directly adjusts hardware parameters like power output and modulation levels. ⚠️ Critical Safety Warning Check official sources Visit the AnyTone official website

Write down every original value before making changes. There is no master reset for the service menu, and settings are unique to every individual radio based on factory calibration. Accessing the Service Menu To enter the hidden service menu on the AT-5555N II: Ensure the radio is OFF. Press and hold the MENU and MODE buttons simultaneously. While holding these, turn the radio ON.

Immediately after power-up, release them and press the remaining six buttons on the top row in order (starting from DW and moving toward EMG). The screen should display "FM" (Factory Menu). Common Service Menu Adjustments

The menu contains approximately 53 parameters. Common points of interest include:

Modulation Settings (#19 & #20): Used to adjust AM modulation swing. Some users report that setting these to zero improves "swing".

AM Power (#16 & #17): Controls High and Low dead-key power settings for AM mode.

Alignment (fr0, fr4, fr5, fr9): These are used for fine-tuning frequencies across different varicap limit voltages.

BFO/LO Calibration (bfC, loC): Adjusts the 10.24MHz Beat Frequency Oscillator and Local Oscillator offsets to center RX/TX. Navigation and Controls

Scrolling: Use the Channel Selector knob to move through numbered menu items.

Viewing Values: Key the microphone (PTT) to see the current value of a selected item.

Changing Values: Hold the PTT key and rotate the Channel Selector knob to increase or decrease values.

Saving/Exiting: Power cycle the radio (turn off and on) once adjustments are complete. Standard Background Menu (Non-Hidden)

For standard feature adjustments (e.g., mic gain, SWR protection, NR settings), use the standard background menu: Press and hold MENU for 2 seconds while the radio is ON. Use the Channel Switch to select an item.

Press the PUSH knob to enter the setup and rotate to change settings.

Are you looking to calibrate a specific mode like SSB frequency centering or are you aiming to increase AM modulation swing? Anytone 5555n Ii Service Menu - Google Groups

Unlocking the Full Potential of the Anytone AT-5555N II: A Guide to the Updated Service Menu

The Anytone AT-5555N II is a popular and versatile two-way radio that has been a favorite among amateur radio enthusiasts, emergency responders, and business users alike. With its robust feature set and reliable performance, it's no wonder that this radio has become a staple in many communication systems. Recently, an updated service menu has been made available, offering even more advanced features and customization options for users.

In this post, we'll take a closer look at the Anytone AT-5555N II and explore the new features and benefits of the updated service menu.

What is the Anytone AT-5555N II?

The Anytone AT-5555N II is a compact and rugged two-way radio that operates on both VHF and UHF frequencies. With a frequency range of 136-174 MHz and 400-470 MHz, this radio offers wide coverage and reliable communication. It features a 5-watt transmitter, 2000mAh battery, and a large LCD display, making it an ideal choice for both mobile and portable use.

What is the Service Menu?

The service menu is a hidden menu system that allows users to access advanced features and settings on their Anytone AT-5555N II radio. This menu is typically used by service technicians and advanced users to customize and troubleshoot the radio. The updated service menu offers a range of new features and options, including:

New frequencies and channel plans: The updated service menu allows users to program new frequencies and channel plans, giving them more flexibility and customization options.
Enhanced encryption: The new menu includes advanced encryption options, providing users with increased security and protection for their communications.
Improved audio settings: Users can now adjust audio settings, such as tone squelch and audio gain, to optimize their listening experience.
Diagnostic tools: The updated service menu includes diagnostic tools, allowing users to troubleshoot and diagnose issues with their radio.

How to Access the Updated Service Menu

To access the updated service menu on your Anytone AT-5555N II, follow these steps:

Turn off your radio.
Press and hold the "Menu" button while turning on the radio.
Release the "Menu" button when the display shows "Service Menu".
Use the navigation buttons to scroll through the menu options.

Benefits of the Updated Service Menu

The updated service menu offers a range of benefits for Anytone AT-5555N II users, including:

Increased customization: With the updated service menu, users have more options for customizing their radio to suit their specific needs.
Improved performance: The new menu includes features that can improve the performance and reliability of the radio.
Enhanced security: The updated service menu provides users with advanced encryption options, ensuring that their communications are secure.

Conclusion

The Anytone AT-5555N II is a powerful and versatile two-way radio that offers reliable communication and advanced features. With the updated service menu, users can unlock even more customization options, improve performance, and enhance security. Whether you're an amateur radio enthusiast, emergency responder, or business user, the Anytone AT-5555N II with the updated service menu is an excellent choice for your communication needs.

Disclaimer

The information provided in this post is for educational purposes only. Users should exercise caution when accessing the service menu, as incorrect settings can potentially damage their radio. It's recommended that users consult the user manual or contact a qualified service technician if they're unsure about any aspect of the service menu.

Critical Parameters to Know (Updated List)

Note: These addresses are for the N II model only, not the original 5555N.

| Parameter | Function | Typical Value (AM) | Note | | :--- | :--- | :--- | :--- | | P-07 | AM Carrier Power | 25-35 | Lower for amps | | P-09 | SSB ALC Max | 85-95 | Don't max this out | | P-14 | Frequency Fine Tune | 500-520 | Center = 512 | | P-22 | S-Meter Zero (Squelch) | 15-25 | Adjust until S-meter reads 0 | | P-41 | TX Audio Limiter | 60-80 | Higher = Louder |

Disclaimer: These are starting points. Every radio is different due to component tolerances.