MENU OPERATION

MENU MODE No-043 [DISP INTENSITY]

Function: Setting of the display brightness level.

Available Values: 1 (Dim) ~ 3 (Bright)

Default: 3

MENU MODE No•044 [DISP MODE] Function: Sets up the LCD Lamp mode. Available Values: OFF/AUTO1/AUTO2/ON Default: AUTO2

OFF: Disables the LCD illumination.

AUTO1: Illuminates the LCD for three seconds when any button is pressed, or if you rotate the SELECT knob.

AUTO2: Illuminates the LCD continuously while the FT-857is operating on an external power supply.

ON: Illuminates the LCD continuously.

MENU MODE No-045 [DSP BPF WIDTH]

Function: Setting of the bandwidth for the DSP CW audio filter.

Available Values: 60/120/240 Hz

Default: 240

MENU MODE No-046 [DSP HPF CUTOFF]

Function: Adjusts the low-cut characteristics of the DSP HPF filter.

Available Values: 100/160/220/280/340/400/460/520/580/640/700/760/820/880/940/1000 (Hz)

Default: 100

This Menu Item determines the low-cut frequency of the DSP HPF filter in the SSB, AM, and FM modes. Generally, acceptable voice fidelity will be obtained only if you do not set this parameter much above 400 Hz.

MENU MODE No-047 [DSP LPF CUTOFF]

Function: Adjusts the high-cut characteristics of the DSP LPF filter.

AvailableValues:1000/1160/1320/1480/1650/1800/1970/2130/2290/2450/2610/2770/2940/ 3100/3260/3420/3580/3740/3900/4060/4230/4390/4550/4710/4870/5030/5190/5390/5520/ 5680/5840/6000 (Hz)

Default: 6000

This Menu Item determines the high-cut frequency of the DSP LPF filter in the SSB, AM, and FM modes. Best voice-mode interference rejection will usually be obtained with a set- ting of between 2130 and 2770 Hz.

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FT-857 Operating Manual

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Vertex Standard FT-857 Menu Mode No-043 Disp Intensity, Menu Mode No-045 DSP BPF Width, Menu Mode No-047 DSP LPF Cutoff
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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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