Anytone At5555n Ii Service Menu Updated -

If the radio displays "------" or random numbers, the PLL has lost lock.

Warning: Accessing the service menu allows modification of transmit frequencies, power output, and deviation limits. In many jurisdictions, operating this radio on frequencies outside the 10-meter amateur band (28.000–29.700 MHz) without the appropriate license is illegal. Furthermore, improper adjustment of alignment parameters (such as TX power or PLL voltage) can result in hardware damage, RF burns, or interference with emergency services. Proceed at your own risk.

Unlike the old menu which used cryptic numbers, the updated AT5555N II uses a hybrid system of Parameter Numbers (P-xx) and Value fields.

Veteran users will notice a few differences in the latest service menu revision:

Depending on your specific firmware revision, utilize one of the following methods.

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.

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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.

To access the updated service menu on the AnyTone AT-5555N II, you can use a specific power-on key sequence. This hidden menu allows for calibration of power levels, modulation, and RF gain, though it should be used with extreme caution as there is no factory reset specifically for these internal service parameters. Accessing the Service Menu

Preparation: Connect the radio to a dummy load or a tuned antenna to prevent damage during testing.

Power On: While the radio is off, press and hold the [MENU] and [MODE] buttons.

Key Sequence: Turn the power on while holding those buttons. Within two seconds (while the LCD segments are displayed), release them and quickly press the following six buttons in order: [DW], [RB], [NB], [SCAN], [MEM], and [EMG].

Verification: If successful, the screen will display a mode like "FM" or a numbered menu item (e.g., #01), indicating you are in the factory service mode. Navigating and Adjusting Settings

Scrolling: Use the Channel Selector knob to cycle through the approximately 59 available menu items.

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

Changing Values: While holding the PTT, rotate the Channel Selector knob to increase or decrease the value.

Saving: Turn the radio off to save and exit the service menu. Common Service Menu Items

While exact item numbers can vary slightly between firmware updates, users frequently target these specific calibrations:

RF Gain Calibration (#52): Used to fix "noisy" receive issues where the S-meter shows signal (e.g., S7) with no actual input. Increasing this value (e.g., from 86 to 105) can help normalize the receiver.

AM Power (#16 & #17): Item #16 typically controls AM High Power (dead key) and #17 controls AM Low Power.

Modulation (#19 & #20): These settings often control the modulation swing for different modes.

Warning: Always write down your original factory values before making any changes. If you lose your original settings, there is no way to automatically restore the radio to its factory-calibrated state.

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.

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) anytone at5555n ii service menu updated

⚠️ 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?

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.

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. If the radio displays "------" or random numbers,

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

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:

How to Access the Updated Service Menu

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

Benefits of the Updated Service Menu

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

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.

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.

To access the updated service menu on the AnyTone AT-5555N II, you must use a specific sequence of key presses while powering on the unit

. This hidden menu allows for hardware-level alignment and frequency calibration that is not available in the standard user background menu. Accessing the Service Menu Before attempting these steps, write down your current settings

. These values are factory-set for your specific radio, and there is no "default" reset that restores them once changed. Turn the radio OFF. Hold the [FUNC] button and turn the power

While the radio is on, quickly press the following buttons in sequence:

The display should enter the service mode, showing alignment parameters. Google Groups Service Menu Parameters Once in the service menu, use the

button to scroll through the different settings. The specific alignment options vary depending on the current Mode Switch position (AM, FM, USB, LSB). Technical Description BFO Frequency Adjusts the 10.24MHz Beat Frequency Oscillator. Fine Tuning

Controls limit voltages for varicaps, affecting oscillator frequency steps (e.g., .00, .04, .05, .09). Local Oscillator

Sets the local oscillator offset to align TX/RX frequencies. Common Adjustments & Alignment Tips BFO Alignment: Standard values for alignment include 10.6950MHz for CW/FM, 10.6925MHz for USB, and 10.6975MHz Correction Sequence: If your radio is off-frequency in SSB modes, adjust first to get as close as possible, then use

for final fine-tuning. This helps keep the fine-tuning (fr) range smooth. Hard Reset:

To clear user settings and return to a default frequency range (typically 25.615 to 28.305MHz), hold while powering on. Google Groups User Background Menu (Standard)

For non-alignment settings like Mic Gain, SWR Protection, or Noise Reduction (NRC), use the standard background menu instead: Long-press for 2 seconds. Channel Switch to select a menu item. to enter the setting, adjust it, and press again to save. device.report

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.

This document details the updated service menu access, parameter definitions, and the critical engineering differences between the "Old" and "New" PCB versions that often necessitate these menu changes.

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The original service manuals had errors, such as:

Radio forums (e.g., Transmission1, WWRF) contain user-consolidated updated tables, but these are often contradictory. No official updated service menu release exists from AnyTone – they do not publish service menus publicly. How to Access the Updated Service Menu To

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