TRANSMITTER OPERATION

FM TRANSMISSION

Split Tone Operation

The FT-857can be configured in a “Split Tone” configuration via the Menu mode.

This allows you to encode a CTCSS Tone but decode a DCS code, encode and decode different CTCSS Tones, encode (only) a DCS code, etc.

1.Press and hold in the [FUNC] key for one second to enter the Menu mode.

2.Rotate the SELECT knob to recall Menu Mode No-001[EXT MENU], then rotate the DIAL to change the setting to “ON” to enable the extended Menu Mode.

3.Rotate the SELECT knob to select Menu Mode No-079[SPLIT TONE].

4.Rotate the DIAL knob to select “ON” (to enable the Split Tone feature).

5.Press and hold in the [FUNC] key for one second to save the new setting and exit to normal operation.

When the Split Tone feature is activated, the Multi Function Row “e” selection changes to [ENC, DEC, TDCH]. So, you can set the desired encoder (by pressing [A](ENC) key, repeat- edly, if necessary) and decoder (by pressing the [B](DEC) key) separately.

When the Split Tone feature is activated, you can see the following additional parameters. T-T: Encodes a CTCSS Tone and Decodes a CTCSS Tone

T-D: Encodes a CTCSS Tone and Decodes a DCS Code

T: CTCSS Tone Encode only

D: DCS Encode only

D-T: Encodes a DCS Code and Decodes a CTCSS Tone

D-D: Encodes a DCS Code and Decodes a DCS Code D: DCS Decode only

T: CTCSS Tone Decode only

Split Tone Frequency or DCS Code Setup

1.Press and hold in the [A](ENC) (if you use CTCSS) or [B](DEC) (if you use DCS) key for one second. This instantly recalls Menu Mode No-083[TONE FREQ] or No-033[DCS CODE].

2.Press the SELECT knob momentarily, then rotate the DIAL knob to select the “R” op- tion. This is the tone you Receive, i.e. the “Decode” tone.

3.Press the SELECT knob momentarily, then rotate the DIAL knob to select the desired Decode CTCSS frequency (or DCS code).

4.Press the SELECT knob momentarily, then rotate the DIAL knob to select the “T” op- tion. This is the tone you Transmit, i.e. the “Encode” tone.

5.Press the SELECT knob momentarily, then rotate the DIAL knob to select the desired Encode CTCSS frequency (or DCS code).

6.Press and hold in the [FUNC] key for one second to save the new setting and exit to normal operation.

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FT-857 Operating Manual

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Vertex Standard FT-857 manual Split Tone Operation, Split Tone Frequency or DCS Code Setup
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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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