FCC ID: K66FT-857
Operating Manual
Vertex Standard Co., Ltd.
20
This 6-pin, mini-DIN jack accepts AFSK input from a Terminal Node Controller (TNC); it also
provides fixed-level Receiver Audio Output, Push-To-Talk (PTT), Squelch Status, and ground lines.
5. ACC Jack
This 3.5-mm 3-pin jack accepts external ALC (Automatic Level Control) voltage from a linear
amplifier on the tip connection, and provides TX/RX control to a linear amplifier (closure to ground on
transmit) on the ring connection. The main shaft is the ground return.
6. KEY Jack
This 3.5-mm, 3-pin jack is used for connection to a CW keyer paddle or a straight key.
7. EXT SPKR Jack
This 3.5-mm, 2-pin jack provides variable audio output for an external speaker. The audio output impedance at this
jack is 4
Ω
~ 16
Ω
and the level varies according to the setting of the front panel’s AF control.
8. 144/430 MHz Antenna Jack
Connect your 144 and/or 430 MHz antenna’s 50
Ω
coaxial cable to this M-type (“SO-239”) connector.
9. HF/50 MHz Antenna Jack
Connect your HF and/or 50 MHz antenna’s 50
Ω
coaxial cable to this M-type (“SO-239”) connector.
Top & Bottom Panel Connectors
Top Panel Switch
Bottom Panel Connector
A-B Switch
Selects the battery pack to be used, when you have installed two optional FNB-78 Ni-MH battery packs into the FT-857.
METER Jack
This 3.5-mm 2-pin jack is used for connection to an analog meter (not produced by Vertex Standard).
Please refer to the MENU No-060 and No-061.
Operation
Hi! I’m R.F. Radio, and I’m here to guide you through the fine points of the setup and use of your new FT-857. I know
you’re anxious to get on the air, but I encourage you to read the “Operation” section of this manual as thoroughly as
possible, so you’ll get the most out of this fantastic new rig. Now. . .let’s get operating!
Turning the Transceiver On and Off
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To turn the transceiver on, press and hold in the POWER switch for one second.
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To turn the transceiver off, again press and hold in the POWER switch for one second.
When you are operating the FT-857 with the optional FP-30 External power supply, always turn on the MAIN switch on
the FP-30 before turning on the POWER switch on the FT-857. When shutting down, please turn off the POWER switch
on the FT-857 before turning off the MAIN switch on the FP-30.