Taking your FPV experience to the next level requires seamless video transmission, and wiring an analog Runcam to a VTx is a crucial step in achieving this. By connecting these two components, you’ll be able to capture and transmit crystal-clear FPV footage. This guide will delve into the intricacies of wiring an analog Runcam to a VTx, providing step-by-step instructions and essential tips to ensure a successful installation.
Before embarking on the wiring process, it’s paramount to gather the necessary materials. You’ll need an analog Runcam, a compatible VTx (video transmitter), a soldering iron, solder, heat shrink tubing, and a multimeter (optional). Once you have everything you need, it’s time to prepare your Runcam and VTx for wiring. This involves locating the appropriate solder pads on both devices and ensuring they’re clean and free of any debris.
Now comes the most crucial part of the process: physically connecting the Runcam to the VTx. Using a soldering iron and solder, carefully connect the ground wire (typically black) from the Runcam to the ground pad on the VTx. Next, solder the video wire (usually yellow) from the Runcam to the video input pad on the VTx. Finally, connect the power wire (red) from the Runcam to the power output pad on the VTx. Once all the wires are securely soldered, use heat shrink tubing to insulate and protect the connections.
Materials Needed
Assembling an analog RunCam to a VTx requires a meticulous approach and the right tools. The essential materials for this task include:
### 1. Analog RunCam Camera
The RunCam is the heart of your FPV system, capturing high-quality video footage transmitted to your goggles. Consider the camera’s field of view (FOV), image resolution, and low-light performance when selecting an analog RunCam.
Popular Analog RunCam Options:
| Model | FOV | Resolution |
|---|---|---|
| RunCam Swift 2 | 145° | 1080p60 |
| RunCam Eagle 3 | 155° | 1200TVL |
| RunCam Split 3 Nano | 170° | 1080p60 |
### 2. Analog Video Transmitter (VTx)
The VTx is responsible for transmitting the video signal from the RunCam to your goggles. Choose a VTx that matches the frequency of your goggles and consider its power output and adjustable settings.
Recommended Analog VTx Options:
| Model | Frequency | Power Output |
|---|---|---|
| ImmersionRC Tramp HV | RaceBand | 500mW |
| TBS Unify Pro 32 HV | RaceBand | 1W |
| FatShark Dominator VTx | RaceBand | 25mW-100mW |
### 3. Antenna
The antenna on your goggles and VTx plays a crucial role in signal strength and range. Opt for an antenna with a wide beamwidth for optimal reception and choose a frequency that matches your VTx.
Installing the VTx
The first step is to install the VTx. This is typically done by soldering the VTx to the flight controller. However, some VTx units may come with pre-soldered wires, in which case you can simply plug them into the appropriate ports on the flight controller.
Once the VTx is installed, you need to connect the antenna. The antenna is responsible for transmitting the video signal from the VTx to the ground station. There are many different types of antennas available, so be sure to choose one that is appropriate for your application.
3. Wiring the VTx to the Camera
The next step is to wire the VTx to the camera. This is typically done using a three-wire cable. The red wire is connected to the positive terminal on the camera, the black wire is connected to the negative terminal, and the yellow wire is connected to the video output.
Once the VTx is wired to the camera, you need to power it up. This is typically done by connecting the VTx to a battery or a power supply. Once the VTx is powered up, you should be able to see the video signal from the camera on your ground station.
Here is a table summarizing the steps for wiring an analog Runcam to a VTx:
| Step | Description |
|---|---|
| 1 | Install the VTx |
| 2 | Connect the antenna |
| 3 | Wire the VTx to the camera |
| 4 | Power up the VTx |
Preparing the Runcam
To prepare your Analog Runcam for connection to a VTX, you will need the following:
- Analog Runcam camera
- VTX (video transmitter)
- Coaxial cable (typically RG355 or RG178)
- Crimping tool
- Crimp connectors (SMA or MMCX)
Step 1: Identify the Runcam’s Video Output
Locate the video output port on the Runcam. It may be labeled “Video Out” or “VTX Out.” Typically, this port will have three pins: red (power), black (ground), and yellow (video signal).
Step 2: Install the Crimp Connector
Select the appropriate crimp connector for your VTX. Use the crimping tool to carefully crimp the connector onto the Runcam’s video output cable.
Step 3: Connect the Coaxial Cable
Attach one end of the coaxial cable to the crimp connector on the Runcam. Make sure the cable is securely fastened.
Step 4: Prepare the VTX
Locate the video input port on the VTX. It may be labeled “Video In” or “Cam In.” Typically, this port will have three pins: red (power), black (ground), and yellow (video signal).
Step 5: Connect the Coaxial Cable
Attach the other end of the coaxial cable to the video input port on the VTX. Ensure the cable is firmly connected.
Step 6: Power Up and Check
Connect the VTX to a power source and power up the system. Check the video output on your FPV goggles or receiver to ensure that the Runcam is connected correctly and transmitting a clear video signal.
| Pin | Runcam | VTX |
|---|---|---|
| 1 | Power | Power |
| 2 | Ground | Ground |
| 3 | Video Signal | Video Signal |
Connecting the Runcam to the VTx
To connect your analog Runcam camera to your video transmitter (VTx), you will need some basic components and tools:
- Analog Runcam camera
- Video transmitter
- Coaxial cable
- Soldering iron and solder
- Heat shrink tubing
Step 1: Prepare the cables
Cut two pieces of coaxial cable to the desired length. Strip about 1/4 inch of insulation from the ends of each cable.
Step 2: Solder the cables to the Runcam
Tin the ends of the stripped wires with solder. Then, solder each wire to the corresponding pad on the Runcam.
Step 3: Solder the cables to the VTx
Tin the ends of the stripped wires with solder. Then, solder each wire to the corresponding pad on the VTx.
Step 4: Secure the connections
Slide a piece of heat shrink tubing over each solder joint. Heat the heat shrink tubing with a heat gun until it shrinks and covers the solder joints. This will protect the solder joints from shorts and damage.
Step 5: Test the connection
Power up the Runcam and the VTx. Check that the video signal is being transmitted to your video goggles or receiver. If there is no signal, check your connections.
| Runcam Pad | VTx Pad |
|---|---|
| Video Out | Video In |
| Ground | Ground |
Connecting the Runcam to the VTx
1. Identify the 5-pin header on the Runcam and the corresponding header on the VTx.
2. Connect the yellow wire from the Runcam to the corresponding yellow wire on the VTx (video signal).
3. Connect the red wire from the Runcam to the corresponding red wire on the VTx (positive power).
4. Connect the black wire from the Runcam to the corresponding black wire on the VTx (ground).
5. Optionally, connect the blue wire from the Runcam to the corresponding blue wire on the VTx for audio transmission.
Powering the System
1. Locate the battery pad or power input on the VTx.
2. Connect the positive and negative wires from the power source to the corresponding terminals on the VTx.
3. Ensure that the power supply voltage matches the specified operating voltage of the VTx.
4. Test the power connection by connecting a battery or power supply and verifying that the VTx powers on.
5. For added redundancy and voltage regulation, it is recommended to use a voltage regulator between the power source and the VTx.
| Wire Color | Function |
|---|---|
| Yellow | Video Signal |
| Red | Positive Power |
| Black | Ground |
| Blue (Optional) | Audio Transmission |
Wiring the Analog Runcam to the VTx
First, you need to identify the wires on both the Runcam and the VTx.
The Runcam will have three wires: red, black, and yellow. The VTx will have four wires: red, black, yellow, and white.
Connect the red wire from the Runcam to the red wire on the VTx. Connect the black wire from the Runcam to the black wire on the VTx. Connect the yellow wire from the Runcam to the yellow wire on the VTx.
The white wire on the VTx is not used for analog video transmission. You can leave it unconnected.
Configuring the VTx
Once the Runcam is wired to the VTx, you need to configure the VTx to output the correct video signal.
The VTx typically has a series of buttons or switches that you can use to change the settings. The specific settings will vary depending on the model of the VTx.
You will need to consult the VTx’s user manual to determine how to change the settings.
Channel Selection
The first step is to select the channel that you want the VTx to transmit on.
There are 8 available channels for analog video transmission. You will need to choose a channel that is not being used by other pilots in your area.
To select the channel, you will need to use the buttons or switches on the VTx.
Power Output
The next step is to set the power output of the VTx.
The power output determines how far the video signal will be transmitted.
You will need to set the power output to a level that is appropriate for your needs.
Band Selection
The final step is to select the band that you want the VTx to transmit on.
There are two bands available for analog video transmission: the A band and the B band.
You will need to choose the band that is compatible with the receiver that you are using.
| Setting | Options |
|---|---|
| Channel | 1-8 |
| Power Output | 25mW, 100mW, 200mW, 500mW |
| Band | A, B |
Wiring Diagram
The wiring diagram for connecting an analog Runcam camera to a VTX is as follows:
- Camera Video Output (Yellow) to VTX Video Input (Yellow)
- Camera Ground (Black) to VTX Ground (Black)
- Camera Power (Red) to VTX Power (Red)
Step-by-Step Instructions
1. Gather Your Materials
* Analog Runcam camera
* VTX
* Soldering iron
* Solder
* Heat shrink tubing
2. Prepare the Wires
* Strip about 1/4 inch of insulation from the ends of the camera and VTX wires.
* Tin the exposed wire ends with solder.
3. Connect the Wires
* Match the colors of the camera wires to the VTX wires and solder them together.
* Make sure the connections are secure and insulated with heat shrink tubing.
4. Test the Connection
* Connect the camera to the VTX and power it on.
* Use an FPV monitor or goggles to display the camera feed.
* If the camera image appears on the screen, the connection is successful.
5. Mount the Camera and VTX
* Mount the camera and VTX on your drone in a suitable location.
* Make sure the camera has a clear view of the desired field of vision.
6. Secure the Wires
* Use zip ties or other means to secure the wires and prevent them from becoming loose during flight.
7. Calibrate the VTX
* Adjust the VTX settings, such as frequency and power output, to ensure optimal performance.
* Refer to the manufacturer’s instructions for specific calibration procedures.
8. Test the Setup
* Fly the drone and monitor the camera feed to ensure it is clear and stable.
* Make any necessary adjustments to the camera or VTX settings as needed.
9. Enjoy Your FPV Experience
* With the camera and VTX properly wired and calibrated, you can now enjoy real-time FPV footage while flying your drone.
10. Troubleshooting
* No camera image on the FPV display: Check the wire connections, especially the video wire (yellow). Resolder any loose or damaged connections.
* Distorted or blurry camera image: Ensure that the camera lens is clean and the video input on the VTX is connected securely.
* Interference in the camera feed: Move the camera and VTX away from sources of electrical interference, such as other electronic devices or power lines.
* Camera not powering on: Verify that the power wire (red) is connected correctly and that the VTX is providing sufficient power.
How To Wire An Analog Runcam To A Vtx
Wiring an analog Runcam to a VTX is a relatively simple process. Here are the steps you need to follow:
- Identify the video and ground wires on the Runcam. The video wire is typically yellow, and the ground wire is typically black.
- Identify the video and ground inputs on the VTX. The video input is typically labeled “VIN,” and the ground input is typically labeled “GND.”
- Connect the video wire from the Runcam to the video input on the VTX.
- Connect the ground wire from the Runcam to the ground input on the VTX.
- Power on the Runcam and the VTX.
- You should now see the video from the Runcam on your FPV goggles.
PEOPLE ALSO ASK
What is an analog Runcam?
An analog Runcam is a small, lightweight camera that is used to capture video footage from a first-person perspective (FPV). Analog Runcams are typically used in FPV drones and planes.
What is a VTX?
A VTX is a video transmitter that is used to transmit the video signal from the Runcam to your FPV goggles.
How do I choose the right VTX for my Runcam?
When choosing a VTX for your Runcam, you need to consider the following factors:
- The power output of the VTX. The power output of the VTX will determine the range of your FPV system.
- The frequency of the VTX. The frequency of the VTX will determine which FPV goggles you can use with your system.
- The size and weight of the VTX. The size and weight of the VTX will be important if you are using it on a small drone or plane.
