CP503T 5.8G 3W transmitter

5.8G 3000MW 56Channels FPV video transmitter for RC FPV Drone Long Range Frame Quadcopter

Feature
Specification

General specification

Key Operation Instructions

POWER Key

Indicated by a green light. Short press to switch power output; the number of flashes indicates the current power: 1 flash for 25mW, 2 flashes for 400mW, 3 flashes for 600mW, 4 flashes for 1.6W, 5 flashes for 3.0W. Long press for 2 seconds to switch to PIT mode, with a steady green light indicating PIT mode is active.

Band/CH Key

· The red light indicates the frequency band. Long press for 2 seconds to switch frequency bands; the number of flashes indicates the current band: 1 flash for Band A, 2 flashes for Band B, 3 flashes for Band E, 4 flashes for Band F, 5 flashes for Band R, 6 flashes for Band L, 7 flashes for Band X, 8 flashes for Band Y.

· The blue light indicates the frequency channel. Short press to switch channels, cycling through CH1 to CH8 continuously.

Wiring Definition

Frequency Table:
A	B	E	F	R	L	X
5865	5733	5705	5740	5658	5362	4990
5845	5752	5685	5760	5695	5399	5020
5825	5771	5665	5780	5732	5436	5050
5805	5790	5645	5800	5769	5473	5080
5785	5809	5885	5820	5806	5510	5110
5765	5828	5905	5840	5843	5547	5140
5745	5847	5925	5860	5880	5584	5170
5725	5866	5945	5880	5917	5621	5200

Power Table
25mW	400mW	600mW	1.6W	3.0W @12V 1300mA

1. General Specifications

Parameter	Specification
Frequency	1.5G 8CH (1380-1520Mhz)
Input Voltage	DC 12-32V, supports 3-7S battery input
Output Power	25mW/800mW/2000mW/5000mW @12V/2500mA
Antenna Interface	SMA female inner hole
Input Interface	GH1.25 4P + SH2.0 2P
Mounting Holes	25×25/Φ2mm, 30.5×30.5/Φ2mm
Video Transmission Protocol	IRC Tramp
Weight	68g
Dimension	69×36×22.5mm

2. Button Operation

2.1 POWER Button (Green Light Indication)

Short press to switch power; the number of blinks indicates the current power:

· 1 blink = 25mW

· 2 blinks = 800mW

· 3 blinks = 2000mW

· 4 blinks = 5000mWLong press for 2s to switch to PIT mode (steady green light indicates PIT mode is activated).

2.2 Band/CH Button

Red Light (Frequency Band Indication)

Long press for 2s to switch frequency band; the number of blinks indicates the current band:

· 1 blink = Band A

· 2 blinks = Band B

Blue Light (Frequency Channel Indication)

Short press to switch channels, cycling through CH1 to CH8 in turn.

3. RF Transmission Frequency Table (MHz)

Frequency Band	CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
BAND_A	1380	1400	1420	1440	1460	1480	1500	1520

3. Wiring Definition

12-36V, GND, RX, VIDEO, GND, 5V-OUT

4. Warnings & Notes

① Mandatory Antenna Installation: The antenna must be installed before power-on.

② Heat Dissipation Requirement: The video transmitter may be damaged if there is insufficient heat dissipation during use.

③ Installation Requirement: Leave sufficient space around the module during installation to ensure air circulation and effective heat dissipation. Overheating will cause power reduction or even complete transmission shutdown.