YAOGREENHAM External Cat Display Screen 12864 LCD With Acrylic Case And Cable For YAESU FT-817 FT-818 FT-857 FT-897 818ND 857D important hint: 1. Plugging and unplugging of the CAT cable must be done in the shutdown state. It is forbidden to plug or unplug the CAT cable with power on, otherwise it may cause damage to the CAT port of the radio. 2. Set the 019 menu of the radio station, the baud rate is 4800 by default; set the 020 menu of the radio station, select CAT Yaesu FT-817, 818, 857D, 897D extended display screen. Two display modes: large character mode and small character mode. The interface photos, from left to right, are: CAT port (connected to the CAT port behind the bottom of the radio station), the radio microphone port, and the microphone microphone User usage: (1) Only need to connect a CAT line to the CAT port behind the bottom of the radio to complete data transmission + power supply (two microphone ports do not connect anything). (recommend) Set the 019 menu of the radio station, the baud rate is 4800 by default; set the 020 menu of the radio station, select CAT (2) If the CAT port behind the bottom of the radio has been connected to an external automatic antenna tuning device, you can use the microphone port to complete data transmission + power supply (the left network port is connected to the radio, the right network port is connected to the microphone) (the CAT port is not connected) . Set the 019 menu of the radio station, the baud rate is 4800 by default; set the 059 menu of the radio station, select CAT In large character mode, the following information can be displayed: Mode: FM, AM, LSB, USB, CW, etc. Receiving state: R receiving state T transmitting state Voltage display. Frequency: for example 439.460.00 Receive S meter: S0-S9, directly display 10, 20...50 after S9 Transmit power meter. In small character mode, the following information can be displayed: Mode: FM, AM, LSB, USB, CW, etc. Receiving state: R receiving state T transmitting state Voltage display. Frequency: for example 439.460.00 Receive S meter: S0-S9, directly display 10, 20...50 after S9 Transmit power meter. PWR, SWR, ALC, MOD high-end parameter display. _x000D_