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Vertex Standard FT-857 manual Transmitter Operation, Basic Setup/Operation, SSB/AM Transmission

Models: FT-857

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TRANSMITTER OPERATION

SSB/AM TRANSMISSION

Basic Setup/Operation

1.Press the [MODE(t)] or [MODE(u)] key so as to select either SSB (LSB/USB) or the AM mode. In the SSB mode, if you are operating on the 7 MHz or lower bands, select the LSB mode. If you are operating on the 14 MHz or higher bands, select the USB mode.

2.Press the [FUNC] key momentarily, then rotate the SELECT knob, as needed, until Multi Function Row “i” [MTR, PWR, DISP] appears on the display.

3.Now press the [A](MTR) or [B] key to select the “ALC” meter function (“ALC” will appear above the [B] key). You may need to press the [A] or [B] key multiple times, as you will be toggling through several selections.

4.Press the microphone’s PTT switch, and speak into the microphone in a normal voice level while watching the meter. The ideal audio input level to the transmitter from the microphone will cause a few “segments” of indication on the ALC meter. Release the PTT switch to return to receive mode.

5.If the ALC meter is too high, or too low, you may need to reset the Microphone Gain:

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

ŸRotate the SELECT knob to recall Menu Mode No-081[SSB MIC GAIN] (on SSB) or No-005[AM MIC GAIN] (on AM).

ŸClose the PTT switch, and while speaking into the microphone rotate the DIAL until the proper ALC indication is achieved on voice peaks.

ŸWhen done, press and hold in the [FUNC] key for one second to save the new setting for the Microphone Gain.

1) The AM carrier level is preset to 25 Watts during alignment at the factory, and should not require further adjustment. It is important to remember that AM trans- mission requires that power must be distributed among the carrier and voice sidebands; therefore, if excessive carrier power is used, there will be insufficient power available for

the information-carrying voice sidebands.

2)The [TONE] switch on the back of the MH-31A8J microphone provides adjustment of the microphone’s frequency response. Setting this switch to the “2” position will roll off some of the bass response, resulting in improved “talk power” in many instances. The “1” position is primarily used in countries like Japan, where vowel sounds are of critical importance in conveying information; in Western languages, consonant sounds (which are rich in high-frequency components) are frequently more important.

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FT-857 Operating Manual

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Vertex Standard FT-857 manual Transmitter Operation, Basic Setup/Operation, SSB/AM Transmission
Page 49 Page 51

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.