Disclaimer: The following information is provided for educational and historical purposes only. Modifying a CB radio to operate on frequencies outside of the designated 40-channel Citizen’s Band (26.965 MHz – 27.405 MHz) is illegal in most jurisdictions, including the United States (FCC Rules Part 95). Transmitting on unauthorized frequencies (such as “Freeband” or amateur radio bands without a license) can result in significant fines and equipment seizure. Proceed at your own risk.
This radio is a classic piece of CB history. Its value is in its original, legal operation. Enjoy it for what it was designed to do: reliable 40-channel AM communication. If you need extended range or more frequencies, get licensed for amateur radio – it’s more fun, fully legal, and opens up far more possibilities than a risky channel mod ever could.
Stay legal, stay on channel, and keep the hobby alive.
Have questions about legal CB operation or getting your Ham license? Drop them in the comments below!
The Midland 75-822
is a versatile handheld/mobile CB radio that can be modified to expand its standard 40-channel operation to 120 channels. This modification typically unlocks extra frequency bands both above and below the standard CB range. Modification Overview
Expansion Capacity: Increases total channels from 40 to 120 by adding 40 "Low" channels and 40 "High" channels.
Frequency Range: Standard CB is 26.965–27.405 MHz. The mod can extend coverage from roughly 26.515 MHz to 27.855 MHz.
Hardware Required: Access to the front circuit board and a soldering iron. Execution Instructions
Modifying this radio involves opening the casing and bridging specific solder pads on the internal circuitry.
Open the Unit: Carefully disassemble the radio. Be mindful of the spring mechanism inside, which can be easily lost.
Locate Solder Pads: On the front board (where the buttons are located), peel back the rubber button piece to reveal the contacts. Bridge the Pads:
Method A: Bridge two small contacts located near the "SC" and "DW" buttons.
Method B (Variant Models): On some newer or different board layouts, bridge the pads at the "10 o'clock" position to the white dot.
Verification: After reassembly, the radio should power up on "6L" or allow scrolling past channel 1 down into the "Low" (L) band and past channel 40 up into the "High" (H) band. Advanced Operational Features
The Midland 75-822 Go to product viewer dialog for this item.
is a highly versatile handheld CB radio known for its "all-in-one" design that bridges the gap between portable and vehicle-mounted use. While it natively supports 40 standard CB channels and 10 NOAA weather channels, some users seek a channel modification to expand its capabilities. Understanding Regulatory Compliance
It is important to note that in many jurisdictions, including the United States, the Federal Communications Commission (FCC) strictly regulates Citizens Band (CB) radio equipment. Under FCC Part 95 rules, CB radios must be type-certified by the manufacturer to operate only on the 40 designated channels within the 27 MHz band. midland 75822 channel mod
Modifying a CB radio to operate on frequencies outside of these 40 channels or to increase power output beyond the 4-watt legal limit is considered a violation of federal law. Such modifications can result in interference with other radio services, leading to potential fines, equipment seizure, or legal action. Furthermore, any internal modifications to the circuit board will immediately void the manufacturer's warranty. Optimizing Performance Within Legal Limits
While expanding the channel count is not permitted, there are several safe and legal ways to improve the performance and range of the Midland 75-822
Antenna Upgrades: The range of a handheld CB radio is heavily dependent on the antenna. Replacing the stock "rubber duck" antenna with a high-quality telescoping antenna or connecting the unit to an external vehicle-mounted magnetic antenna can significantly increase transmission and reception distance.
Power Supply: Using the included mobile vehicle adapter allows the radio to draw power directly from the vehicle’s battery, ensuring consistent performance compared to using standard AA batteries.
Squelch and Gain Adjustments: Properly adjusting the squelch control helps filter out background static, allowing for clearer communication on active channels. Memory Channel Programming : The
allows for the storage of up to five frequently used channels. This is done by selecting the desired channel, pressing the "F" (Function) button, and then holding one of the memory (M1-M5) buttons until the setting is saved.
By focusing on these external improvements, users can maximize the utility of their device while remaining in compliance with radio communication regulations. Would there be interest in more information regarding antenna types or battery maintenance for handheld radios?
Here are what people commonly mean by "Midland 75822 channel mod" (likely Midland 75‑822):
If you want specifics (step‑by‑step mod for Rev.1 vs Rev.2 board, photos, or legal details for your country), tell me which you want and I will provide a concise, sourced summary.
The Midland 75-822 is a popular 2-in-1 CB radio often modified to expand its capabilities beyond the standard 40 channels. By bridging specific internal contacts, users can unlock up to 120 channels, including "L" (low) and "H" (high) bands. Frequency Expansion Modification (120 Channels)
This modification unlocks two additional bands of 40 channels each, flanking the standard CB frequencies.
Low Band (L): Opens 40 channels below Channel 1 (26.965 MHz).
High Band (H): Opens 40 channels above Channel 40 (27.405 MHz).
Access: Once modified, these bands are typically reached by scrolling down past Channel 1 or up past Channel 40. Internal Modification Steps
To perform the "More Channels" mod, you must access the radio's front circuit board:
Open the Housing: Carefully disassemble the radio. Watch for the internal spring, as it is easily lost.
Locate Pads: Identify the small metal contact pads on the front board, generally located near the "SC" (Scan) and "DW" (Dual Watch) buttons. Have questions about legal CB operation or getting
Bridge Contacts: Solder these two pads together. Some variants may require bridging pads at the "10 o'clock" position to a specific white dot on the board.
Reassemble: Put the radio back together and power it on. The display should now indicate "L" or "H" when scrolling outside the standard 40-channel range. Technical and Regulatory Considerations
Regulatory Compliance: It is important to note that the Federal Communications Commission (FCC) and similar international bodies strictly regulate the frequencies and power levels allowed for Citizen Band (CB) radio. Operating on frequencies outside the standard 40-channel range or exceeding authorized power limits is illegal and can interfere with critical communications, including emergency and military services.
Warranty and Hardware Integrity: Performing internal modifications, such as soldering circuit board pads, typically voids the manufacturer's warranty. Improper soldering or handling can lead to permanent damage to the device's internal components.
Antenna Efficiency: The standard antenna provided with the unit is optimized for the legal 40 CB channels. Operating the device on other frequencies without a properly tuned external antenna can cause a high Standing Wave Ratio (SWR), which may lead to overheating and failure of the radio's power amplifier.
Before attempting any hardware modifications, checking local laws and regulations regarding radio transmissions is necessary to ensure all activities remain within legal boundaries.
Midland 75-822 is widely regarded as a versatile "Swiss Army knife" in the CB radio world due to its dual-purpose handheld and mobile design. While it ships as a standard 40-channel device,
a popular internal modification allows users to expand its capabilities to 120 channels Unlocking the 120-Channel "Uppers and Lowers" Mod The modification opens up the
bands, adding 40 channels below the standard CB band and 40 channels above it. The Procedure:
The mod typically involves opening the radio and bridging specific solder pads on the internal circuit board. One verified method involves bridging pads located at the 10 o’clock position to a nearby white dot.
Once reassembled and powered on, the radio can access three sets of 40 channels: Low Band (1-40L): Frequencies below 26.965 MHz. Standard CB (1-40): Standard 26.965–27.405 MHz range. High Band (1-40H): Frequencies above 27.405 MHz. Hidden Frequency Counter:
After the mod, users can often toggle the display to show the direct frequency (e.g., 27.635) instead of just the channel number by holding the Function (F) button for 3 seconds Why Users Perform This Modification Reduced Congestion:
The "uppers and lowers" are often much quieter than standard CB channels, providing a clearer environment for communication when skip conditions are heavy.
While not encrypted, these additional frequencies are less frequented by casual users, offering a degree of "quiet" for groups. Peak Tuning:
Professionals performing this mod often simultaneously "tune up" the radio to increase peak power slightly beyond the stock 4 watts for improved clarity. Critical Considerations & Risks
Midland 75-822 is highly regarded as one of the most versatile CB radios because it can swap between a handheld walkie-talkie and a mobile vehicle unit. The "Channel Mod" refers to an internal hardware modification that expands the device's capability from the standard 40 CB channels to approximately 120 channels Review: Midland 75-822 "Channel Mod"
The modification typically involves bridging internal solder pads (often near the CPU) to unlock "export mode." Once modified, the radio can access lower (Band C) and higher (Band E) frequencies, expanding its range from roughly 26.515 MHz to 27.855 MHz Pros of the Mod Expanded Frequency Range If you want specifics (step‑by‑step mod for Rev
: You gain 80 extra channels (40 above and 40 below the standard CB band), which can be useful for avoiding crowded channels in areas with high traffic. Frequency Display
: Holding the "Function" button for 3 seconds often allows you to view the direct frequency (e.g., 27.635) instead of just the channel number, making it easier to match with non-standard radios. Increased Potential Output
: Some technicians pair the channel mod with a "peak and tune," potentially boosting the peak power from the standard 4 watts to around for better clarity and range. Cons & Risks Midland 75822 Channel Mod
The Midland 75-822 is a popular 2-in-1 portable CB radio that can be "modded" to expand its capabilities far beyond the standard 40-channel American CB band. While the radio comes stock with 40 channels (26.965 MHz – 27.405 MHz), enthusiasts often modify the internal circuitry to unlock a total of 120 channels. The "120 Channel" Mod
This modification allows the radio to access "uppers" and "lowers"—frequency bands just above and below the standard CB range.
The Hardware Hack: The mod typically involves opening the unit and bridging specific solder pads on the printed circuit board (PCB). On some versions of the 75-822, jumping the pad marked "A" unlocks three 40-channel bands (Low, Mid, and High), covering a range of approximately 26.515 MHz to 27.855 MHz.
Resulting Display: After the mod, the radio often displays a letter (e.g., "L" for low, "M" or no letter for mid/standard, and "H" for high) alongside the channel number.
Hidden Frequency Counter: Even without a full hardware mod, you can hold the Function (FUNC) button for 3 seconds to toggle the display between the channel number and a "pseudo frequency counter," letting you see the exact frequency you are on. Multi-Region Modes
Because the 75-822 is sold globally under different names (like the Alan 42 in Europe), it often contains hidden software modes for different countries.
European Band Plans: By jumping both pads "A" and "B," the radio can sometimes be set to the 80-channel European or UK FM band plans.
FM Capabilities: While the U.S. model is primarily AM, some mods unlock FM mode for use in regions where it is legal. Performance "Tune-Ups"
Modders often pair the channel expansion with a "peak and tune" to improve performance:
Power Output: Technicians may adjust the internal pots to "peak" the output closer to 4 watts (or slightly above) for better range.
Modulation: Adjustments can be made to increase the modulation percentage, making your voice sound louder and clearer to other operators. Critical Considerations
Legality: Expanding into the "upper" or "lower" frequencies is known as freebanding. In the USA, these frequencies are not authorized for CB use and may overlap with the 10-meter ham band or government frequencies.
Antenna Limitation: The stock "rubber duck" antenna is tuned for the standard 40 channels; using expanded frequencies effectively usually requires an external antenna like those found at Right Channel Radios or Bob's CB Shop.
Warranty: Opening the case and soldering internal pads will void the manufacturer's warranty.
The internal filters, antenna matching circuits, and output transistors are designed for 26.965–27.405 MHz. Outside that range, your SWR will spike, your transmit power will drop, and you could burn out the final transistor.