SCANNING OPERATION

“PRIORITY CHANNEL” SCANNING

The FT-857’s scanning features include a two-channel scanning capability which allows you to operate on a VFO or Memory channel, while periodically checking Memory Channel “M-001” for activity. If a station is received on Memory Channel “M-001” which is strong enough to open the Squelch, the scanner will pause on that station in accordance with the Scan-Resume mode set via Menu Mode No-077[SCAN MODE]. See page 110.

Here is the procedure for activating Priority Channel Dual Watch operation:

1.Rotate the SQL control until the background noise is just silenced, then store the fre- quency to be the “Priority” channel into Memory Channel “M-001.”

2.Set the FT-857for operation on another memory channel, or on a VFO frequency.

3.Press the [FUNC] key momentarily, then rotate the SELECT knob, as needed, until Multi Function Row “g” [SCN, PRI, DW] appears on the display.

4.Press the [B](PRI) key momentarily to start the “Priority” monitoring feature (the “ ” icon will appear at the upper of the frequency display). During Priority monitoring, the displayed frequency will shift to the Priority memory briefly every five seconds, while the receiver checks for the presence of a signal.

5.When no signal appears on the Priority memory (i.e. the squelch remains closed), you can tune, transmit and receive on the VFO, or select and operate on other memories.

6.If a station you wish to talk with appears on the Priority channel, press the PTT switch momentarily while receiving their signal (no transmission will occur) to halt Priority scanning. Otherwise, when a signal appears on the Priority channel, Priority monitoring will just pause on the channel. Priority monitoring will resume in accordance with the SCAN MODE Menu setting, as mentioned previously.

7.To cancel Priority monitoring, again press the [B](PRI) key.

FT-857 Operating Manual

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Vertex Standard FT-857 manual Priority Channel Scanning
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FT-857 specifications

The Vertex Standard FT-857 is a compact and versatile all-mode transceiver that has become popular among amateur radio operators since its introduction. With its ability to operate in VHF, UHF, and HF bands, the FT-857 caters to a diverse range of communication preferences and provides exceptional performance for both mobile and base station applications.

One of the key features of the FT-857 is its coverage of a broad frequency range, spanning from 160 meters to 2 meters and covering the 70 cm band. This wide frequency coverage allows amateur operators to communicate with fellow enthusiasts across various bands, ensuring versatility in operational environments. The FT-857 offers an output power of up to 100 watts on HF and 50 watts on VHF/UHF, providing sufficient power for effective communication, whether in local or distant contacts.

Another distinctive characteristic of the FT-857 is its all-mode capability. It supports various modes of operation, including SSB, CW, AM, and FM, making it suitable for different operating styles and preferences. The inclusion of advanced digital signal processing (DSP) technology enhances audio clarity and offers noise reduction features, which are crucial in crowded bands. This DSP capability also aids in improving signal quality and overall communication experience.

Portability is a significant advantage of the FT-857. Its compact size and lightweight design make it an excellent choice for field operations and portable setups. Additionally, the transceiver is well-equipped with features such as built-in memory channels, allowing users to save and quickly access frequently used frequencies. The FT-857 also includes a built-in automatic antenna tuner, which makes it easier for operators to set up and optimize their antenna configurations without requiring additional external devices.

The FT-857 is designed with user-friendly controls and a clear LCD display, enabling operators to quickly adjust settings and monitor communication details without confusion. The visibility of the display is especially vital for use in different lighting conditions, ensuring that users can operate efficiently whether in bright sunlight or low light conditions.

In summary, the Vertex Standard FT-857 is a highly capable, compact transceiver that offers an effective solution for amateur radio communication. With its all-band, all-mode capabilities, robust DSP technology, and user-friendly design, the FT-857 remains a popular choice for both enthusiasts and professionals alike, facilitating engaging communication experiences across multiple bands and modes.
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