Midland Radio MO-7128 manual Receiving Transmissions from Other Radios, Carrier Squelch Operation

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Olympian™ Series Mobile Radio User’s Guide

Receiving Transmissions from Other Radios

Each channel of your radio may be programmed for carrier squelch operation, CTCSS/DCS operation or 2-tone operation. The following paragraphs describe these modes of operation. Ask your dealer or communications coordinator if you have questions on how your radio has been programmed to operate.

Carrier Squelch Operation

A signal that matches the programmed receive frequency will be heard if it is of sufficient strength to exceed the squelch threshold. An on frequency signal exceeding the squelch threshold level will be indicated by a steady green Tx/Busy indicator.

CTCSS/DCS Operation

CTCSS or DCS signaling adds an additional condition to carrier squelch operation. In addition to the signal having to exceed the squelch threshold level, the received signal must also have the correct CTCSS or DCS tone or code before the audio will be passed to the speaker. CTCSS or DCS signaling allows multiple users on the same frequency to hear only signals which have their correct CTCSS tone or DCS code. An on frequency signal with the correct CTCSS or DCS signaling will be indicated by a steady green TX/Busy indicator. An amber TX/Busy indicator means that the channel is busy, but the correct CTCSS or DCS signaling is not present.

CTCSS/DCS allows multiple users to share the same frequency. However CTCSS/DCS is only useful to avoid disturbing other users with messages not related to them. If more than one radio is transmitting at the same time, this will cause interference. Do not transmit if the TX/Busy indicator is illuminated green or amber. Wait until the channel is clear before transmitting.

2-tone Operation

2-tone signaling allows individual or group calls to be made to your radio. The radio may have been programmed to mute all

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Contents Olympian Series Olympian Series Mobile Radio User’s Guide Contents Conventions and Symbols in this Book SafetyDisclaimer Olympian Series Mobile Radio User’s Guide Radio Features IntroductionRadio Model Olympian Series Mobile Radio User’s Guide Recommended Accessories Radio ControlsFront Panel Rear Panel Backlit LCD DetailsSetup InstallationUnpacking Basic Operation Channel SelectionBank Selection Receiving Transmissions from Other Radios Carrier Squelch OperationCTCSS/DCS Operation Tone OperationOlympian Series Mobile Radio User’s Guide Scanning Channels Busy Channel Scan Priority Channel ScanTransmitting While in Scan Mode Priority Select ScanEditing Your Scan List Bank Scan Edit Channel Scan EditCH BNK B CH 1B CH 2B CH 3B Programmable Functions Emergency KeylockMemory Channel 1 Unsquelched MonitorPanel Display Public AddressScan Scan EscapeTX Power Talk AroundMessage Display Quick Reference Channel restored to scan list Call alert horn enabledCall alert horn disabled MCH1-2 Switch to memory channelSpecifications VHF UHFOlympian Mobile Connectors Warranty Statement Parretta DRIVE, Kansas CITY, Missouri

MO-7008, MO-7128, MO-4128 specifications

Midland Radio has long been a reliable name in the realm of communication devices, particularly in the domain of two-way radios and walkie-talkies. Among their product offerings are the MO-4128, MO-7128, and MO-7008 models, which cater to varied communication needs, making them a popular choice for outdoor enthusiasts, professional users, and everyday consumers alike.

The Midland MO-4128 is designed with versatility in mind, featuring an array of functionalities that make it suitable for various applications. One of its notable characteristics is its long-range capabilities, allowing for clear communication over extended distances. Equipped with 22 channels and 38 privacy codes, users can enjoy reduced interference and enhanced security. The MO-4128 is also ruggedly built, making it ideal for outdoor use and adverse weather conditions. Its easy-to-read LCD display adds to user convenience, while the built-in flashlight provides additional utility during emergencies or low-light scenarios.

The MO-7128 takes communication convenience a step further. It inherits the robust features of the MO-4128 but introduces advanced technologies such as NOAA weather alerts. This feature is vital for outdoor activities, providing real-time weather updates to keep users informed. Additionally, the MO-7128 boasts increased battery life, ensuring extended operation without frequent recharges. Like its counterpart, it also has a durable design suitable for outdoor enthusiasts, ensuring reliability in various environments.

Lastly, the MO-7008 model is a compact yet powerful option designed for those who prioritize portability without sacrificing performance. It features a lightweight design, making it easy to carry on outdoor adventures. Much like the other models, it offers multiple channels and privacy codes for secure communication. Its user-friendly interface, paired with an intuitive menu system, allows users to quickly navigate through settings, even in challenging situations.

In summary, Midland Radio's MO-4128, MO-7128, and MO-7008 models are hallmark examples of the brand's commitment to quality communication devices. Each model caters to specific user needs, encompassing long-range capabilities, weather alerts, and portability. Built to withstand the rigors of outdoor use while providing reliable communication, these models are ideal for anyone from casual hikers to seasoned professionals, embodying the spirit of adventure and connectivity.
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