CONVENTIONAL FEATURES

Call Guard Squelch Enable/Disable

To disable Call Guard (Selective) squelch so that all messages on the selected or scanned channels are heard, press the Normal/Selective option switch if programmed. Then to re-enable Call Guard squelch, press the Normal/Selective switch again.

When Call Guard squelch is disabled by this switch, “SQ NORM” is flashed on the lower line of the display, and when it is enabled, “SQ SLCT” is flashed. The mode selected by this switch does not change when other channels are selected or power is cycled. Call Guard squelch can also be disabled by the monitor mode described on page 26.

Changing the Call Guard Code

If you have the full keypad (15-key) model and the ability to change Call Guard codes has been enabled by programming, the transmit and receive codes from one channel can be temporarily or permanently reas- signed to all channels of the current zone. Proceed as follows:

1.Using the number keys, enter the number of the channel that is programmed with the code you want to reassign to all channels (only channels 1-9 can be selected). See “Display Mode Selection” on page 25 for information on displaying channel numbers.

2.The display then briefly indicates “CODE x”, where “x” is the key you pressed. The codes assigned to that channel are then reassigned to all the other channels in the current zone. The reassignments remain in effect even after power is cycled.

3.To restore all Call Guard codes in the current zone to the original settings, press the “0” key.

Penalty Timer

A penalty timer may be programmed on conventional channels to prevent transmissions for a period of time after the time-out timer described on page 19 disables the transmitter. The penalty timer starts

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EFJohnson 7700 Series, FM Portable Radio Intrinsically-Safe SMARTNET, SmartZone Conventional manual Penalty Timer
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FM Portable Radio Intrinsically-Safe SMARTNET, SmartZone Conventional, 7700 Series specifications

The EFJohnson 7700 Series FM Portable Radio is designed for the most demanding environments, especially in industries that prioritize safety and communication reliability. This cutting-edge equipment meets the stringent requirements for intrinsically safe operations, making it an optimal choice for first responders, industrial applications, and hazardous environments.

One of the main features of the EFJohnson 7700 Series is its adherence to the high standards of intrinsically safe certifications. This ensures that the radio can operate safely in potentially explosive atmospheres without igniting flammable gases or dust. Additionally, the 7700 series is designed to withstand harsh conditions, including extreme temperatures, moisture, and physical impact, ensuring that users can rely on it even in the toughest scenarios.

The radio supports SMARTNET and SmartZone Conventional technologies, enhancing its versatility. SMARTNET is a trunked radio system that allows for efficient use of communication channels, accommodating multiple users within a single frequency band. This is particularly beneficial for large agencies that require seamless and coordinated communication across various teams. SmartZone Conventional provides flexible interoperability, making it easy for users to communicate with different radio systems and networks.

With advanced signal processing technology, the EFJohnson 7700 series offers superior audio clarity, minimizing background noise and ensuring that messages are transmitted and received with precision. The user-friendly interface features large buttons and a bright display, allowing for easy operation even while wearing gloves or during low-light conditions. Furthermore, the radio includes programmable function keys, enabling users to customize their experience based on specific operational needs.

The EFJohnson 7700 Series is equipped with robust battery technology, providing extended operational time and ensuring that users remain connected during critical missions. The lightweight design enhances portability, making it easy to carry during long shifts. Durability features include water and dust resistance, meeting IP67 standards to ensure reliability in outdoor terrain.

In conclusion, the EFJohnson 7700 Series FM Portable Radio combines advanced technologies, safety features, and user-focused design, making it an essential tool for professionals in hazardous environments. With its commitment to reliability and efficiency, the 7700 Series stands out as a leading choice for teams that require the best in communications technology.
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