OPERATION

change the operating frequency in 1 MHz steps, allowing very quick frequency excursions. This can be particularly helpful on the VHF and UHF bands.

In step 2 above, it was mentioned that tuning in the “AM/FM/PKT” modes is accomplished using the SELECT knob. By default, the DIAL is disabled in these modes; if you wish to enable the DIAL in these modes, use Menu Mode No-004[AM&FM DIAL]; see page 97.

The main DIAL synthesizer’s tuning rate (the number of steps per rotation of the

DIAL) can be adjusted using Menu Mode No-035 [DIAL STEP]. See page 102 for details.

CHANGING THE DIAL SPEED

By default, the FT-857begins operation in the “fine tuning” mode for the main tuning dial. However, a faster tuning rate may be selected, for quick navigation up and down the band.

To engage the “Fast Tuning” mode, just press the POWER transceiver is on. You will observe a small “” icon in

the bottom right-hand corner of the LCD, and as you rotate the main tuning dial you will notice that the tun- ing rate has increased significantly. Press the POWER switch momentarily once more to return to the “Slow Tuning” mode (the small “” will disappear).

switch momentarily while the

POWER

STACKED VFO SYSTEM

Press the [FUNC] key momentarily, then rotate the SELECT knob, as needed, until Multi Function Row “a” [A/B, A=B, SPL] appears on the display.

Now press the [A](A/B) key to toggle between the “A” and “B” VFOs. There are two such VFOs provided on each Amateur band, so you may set VFO-A to the CW sub-band, and VFO-B to the SSB sub-band, if you like. The operating mode will be preserved, along with the frequency information, on each VFO.

When changing bands on either the “A” or “B” VFO, the two VFOs do not change bands together. This facilitates split-band operation, such as on FM satellites.

FT-857 Operating Manual

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Vertex Standard FT-857 manual Changing the Dial Speed, Stacked VFO System
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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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