TRANSMITTER OPERATION

FM TRANSMISSION

Mode No-083 [TONE FREQ].

 

 

 

 

CTCSS TONE FREQUENCY (Hz)

 

(2) Rotate the DIAL knob to select the

 

 

 

 

 

 

67.0

69.3

71.9

74.4

77.0

79.7

desired CTCSS frequency.

82.5

85.4

88.5

91.5

94.8

97.4

(3) When done, press and hold in the

100.0

103.5

107.2

110.9

114.8

118.8

[FUNC] key for one second to save

123.0

127.3

131.8

136.5

141.3

146.2

151.4

156.7

159.8

162.2

165.5

167.9

the new setting and exit to normal

171.3

173.8

177.3

179.9

183.5

186.2

operation.

189.9

192.8

196.6

199.5

203.5

206.5

5. With repeater shift activated, you can tem-

210.7

218.1

225.7

229.1

233.6

241.8

porarily reverse the transmit and receive fre-

250.3

254.1

–

–

–

–

quencies by pressing the [B](REV) key in the Multi Function Row “d” [RPT, REV, VOX]. The “–” icon will blink while “Reverse” shift is activated. Press the [B](REV) key again to revert to the “Normal” shift direction.

6.On many transceiver versions, the Automatic Repeater Shift (ARS) feature is enabled at the factory. This feature automatically activates the appropriate repeater shift when you are operating inside the designated 144 MHz or 430 MHz FM repeater sub-bands in your country. If you wish to change the On/Off settings for the ARS, use Menu Mode No- 002 [144MHz ARS] or Menu Mode No-003[430MHz ARS] (see page 97).

If your local repeaters need a 1750-Hz burst tone for access (typically in Europe), press and hold in the front panel’s [HOME] key to transmit the burst tone (FM

mode only).

Tone Search Scanning

In operating situations where you don’t know the CTCSS tone being used by another station, you can command the radio to listen to the incoming signal and scan in search of the tone being used. To scan for the CTCSS tone in use:

1.Press the [FUNC] key momentarily, then rotate the SELECT knob, as needed, until Multi Function Row “e” [TON, – – –, TDCH] appears on the display.

2.Press the [A](TON) key to activate CTCSS Encoder/Decoder; (the “TSQ” icon will ap- pear on the display).

3.Press the [C](TDCH) key to start scanning for the incoming CTCSS tone.

4.When the radio detects the correct tone, it will halt on that tone, and audio will be al- lowed to pass.

5.The CTCSS tone detected will be stored as the “current” tone, so it may be used for memory storage purposes, and you may now exit to normal operation.

58

FT-857 Operating Manual

Page 59 Page 61
Page 60
Image 60
Vertex Standard FT-857 manual Tone Search Scanning, Mode No-083 Tone Freq
Page 59 Page 61

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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