Front Panel Control & Switches

AF	QL
	S
	/RF
SELECT

HOME

CLAR

FUNC

AF Knob

The (inner) VOL knob adjusts the receiver audio volume level presented to the internal or external speaker. Clockwise rotation increases the volume level.

SQL/RF Knob

In the USA version, this (outer) SQL/RF knob adjusts the gain of the receiver’s RF and IF stages. Using Menu Mode No-080[SQL/RF GAIN], this control may be changed to function as a Squelch control, which may be used to silence background noise when no signal is present. In the other versions, its default setting is set to “Squelch.”

SELECT knob

This detented rotary switch is used for VFO frequency tuning, memory selection, and function selection for the [A], [B], [C] keys of the transceiver.

HOME Key

Pressing this key momentarily recalls a favorite “Home” frequency memory.

CLAR Key

Pressing this key activates the Receiver Clarifier feature. When this feature is activated, the SELECT knob is used to set a tuning offset of up to ±9.99 kHz. The transmitter’s frequency is not affected by the setting of the Clarifier.

Press and hold in this key for one second to activate the IF Shift feature, which allows you to use the SELECT knob to adjust the center frequency of the IF filter’s passband response.

20	FT-857 Operating Manual

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.

Vertex Standard FT-857 manual Front Panel Control & Switches

Models: FT-857