How to Choose a 5.8GHz Video Transmitter for Racing
Pick a 5.8GHz video transmitter by power level, channel count, and mounting size. Race at 25mW so you do not block other pilots, and use 800mW only for freestyle or long range. The RushFPV Tiny Tank Nano costs $11.55 at 350mW, and the RushFPV Tank Mini runs 25 to 800mW across 48 channels.
Quick facts
| Fact | Value |
|---|---|
| Race power | 25mW for race day |
| Tank Mini power steps | 25, 200, 500, and 800mW |
| Tank Mini channels | 48 channels, 37 on the US version |
| Tank Mini band | 5362 to 5945MHz on 5.8GHz |
| Tank Mini input | 7 to 36V DC, 5V 1A output |
| Lowest price VTX here | $11.55 for the RushFPV Tiny Tank Nano |
How much VTX power do you need?
Race at 25mW. Low power keeps your signal from blocking the pilot next to you on the race grid.
Fly freestyle at 200mW or 500mW. More power holds video through trees and behind obstacles.
Use 800mW or 1.6W only for long range. The Tank Mini draws 380mA at 800mW on 12V, so it needs airflow to stay cool.
What do the 48 channels and 6 bands mean?
A 5.8GHz VTX covers 6 bands of 8 channels. That is 48 channels from 5362 to 5945MHz on the full version.
The US version of the Tank Mini has 37 channels. Some channels need a HAM license to use legally, per the RushFPV manual.
Race organizers assign one channel per pilot. Pick a channel at least two steps from your neighbor to avoid video bleed.
How does SmartAudio change your VTX settings?
SmartAudio lets you change band, channel, and power from your radio OSD. You do not open the quad to press a button.
The Tank Mini uses SmartAudio 2.1, licensed from TBS. The HGLRC Zeus Nano uses IRC Tramp, which works the same way in Betaflight.
Load the maker VTX table in Betaflight first. The table maps each band and channel to its frequency in MHz.
What is Pit mode, and when do you use it?
Pit mode drops output to almost zero. You can power the quad on the bench without blocking pilots in the air.
The Tank Mini lists PIT as its lowest step, below 25mW. Switch out of Pit mode only when your channel is clear.
Use Pit mode at every race pit. A quad left on 25mW still reaches the race line and ruins video for others.
Analog or digital video for racing?
Analog video suits racing. It shows static instead of freezing, and its latency stays low at race speeds.
The 7 analog VTX units in this guide run 25mW to 1.6W. They pair with any 5.8GHz analog goggle or monitor.
Digital video suits cinematic flying. The DJI O4 Air Unit costs $183.99 and sends HD video with higher latency than analog.
How do you keep a VTX alive?
Never power a VTX without an antenna. No load on the output burns the amplifier in seconds.
Give the VTX airflow. A 800mW VTX at 380mA makes real heat, and a sealed build cooks it.
Mount it on 20 by 20mm holes where the frame allows. The Tank Mini board measures 28 by 28 by 3.3mm and weighs 4.46g.
How the options compare
| VTX | Power | Channels | Input voltage | Price |
|---|---|---|---|---|
| RushFPV Tiny Tank Nano | 350mW | 48 | Not listed | $11.55 |
| AKK FX3 | 25 to 600mW | Not listed | Not listed | $56.99 |
| SpeedyBee TX800 | 800mW | 48 | Not listed | $57.72 |
| HGLRC Zeus Nano | 350mW | 40 | Not listed | $68.99 |
| RushFPV Tank Solo | 1.6W | 48 | 7 to 36V | $97.99 |
| RushFPV Tank Mini | 25 to 800mW | 48 / 37 US | 7 to 36V | $120.99 |
| GEPRC RAD 1.6W | 1.6W | 40 | Not listed | $142.99 |
How do you set a VTX channel with SmartAudio?
- Load the maker VTX table in Betaflight and save it.
- Open the OSD menu from your radio sticks.
- Pick your assigned band and channel in the VTX menu.
- Set power to 25mW for racing, then exit the menu.
- Confirm the goggle shows the same band and channel.
Parts that fit this guide
Prices below are the live store prices we verified on November 10, 2026. In-stock parts ship from New York in 1 to 2 business days. Check the product page for the current price before you order.
RushFPV Tiny Tank Nano VTX 350mW 5.8GHz 48CH SmartAudio ($11.55)
Nano VTX at $11.55. It runs 350mW across 48 channels with SmartAudio.
AKK FX3 / FX3-Ultimate 5.8GHz Mini VTX 25-600mW SmartAudio ($56.99)
Mini VTX at $56.99. It runs 25 to 600mW with SmartAudio control.
SpeedyBee TX800 VTX 800mW 5.8GHz 48CH Video Transmitter for FPV Racing ($57.72)
Racing VTX at $57.72. It runs 800mW across 48 channels.
HGLRC Zeus Nano VTX 350mW 5.8GHz 40CH IRC Tramp SmartAudio ($68.99)
Nano VTX at $68.99. It runs 350mW across 40 channels with IRC Tramp.
RushFPV Tank Solo 1.6W 5.8GHz VTX 48CH SmartAudio CNC ($97.99)
Long range VTX at $97.99. It runs 1.6W across 48 channels in a CNC shell.
RushFPV Tank Ultimate MINI VTX 800mW 5.8GHz Video Transmitter for FPV Racing ($120.99)
Racing VTX at $120.99. It runs 25 to 800mW across 48 channels with SmartAudio 2.1.
GEPRC RAD 1.6W VTX 5.8GHz 40CH IRC Tramp SmartAudio Long Range ($142.99)
Long range VTX at $142.99. It runs 1.6W across 40 channels with IRC Tramp.
Shop the full range: Analog VTX at Quality RC Parts. See also: Related guide.
Frequently asked questions
Why does my video break up when I fly behind trees?
Trees block 5.8GHz signals. Raise power to 200mW or 500mW, or fly a higher line with a clear path to your antenna.
Do I need a HAM license for FPV video?
Some 5.8GHz channels and higher power levels need a HAM license in the USA. The RushFPV manual flags HAM channels, so check your channel first.
Can I use a 1.6W VTX for racing?
No. Race at 25mW so your signal does not block other pilots. Save 1.6W for long range flights with clear airspace.
What antenna connector does the Tank Mini use?
It uses MMCX. Fit an MMCX antenna and never power the VTX without one attached.
Sources
Last updated: November 10, 2026.