The iFlight Blitz 1.6W VTX is a powerful analog video transmitter featured in their latest budget BNF FPV drone, the Nazgul ECO. Is this VTX any good despite being used in one of the cheapest 5″ drone on the market? Let’s find out in this review.
Learn more about video transmitters in our buyer’s guide: https://oscarliang.com/video-transmitter/
Table of Contents
Where to Buy?
Get the Blitz 1.6W VTX here:
- AliExpress: https://s.click.aliexpress.com/e/_DdHhycP
- Amazon: https://amzn.to/3R5okkz
Specifications
- Input voltage: 7V to 34V
- Interface: MMCX
- Power levels: PIT/25mW/400mW/800mW/1600mW
- Total Channels: 40 (including Raceband and 4 other bands)
- Mounting pattern: 30.5×30.5mm M3 Threaded
- Weight (without antenna): 18.9g
- VTX Control Protocol: IRC Tramp
Closer Look
The VTX is fully enclosed in an aluminum housing. Although it’s not the lightest, weighing in at 19 grams, it’s certainly one of the most powerful yet compact VTXs on the market. My testing confirms it does output 1.6W as advertised.
It has a MMCX antenna connector.
It has no solder pads, only a JST style connector.
You can find the pinouts on the back:
- VBAT: Voltage input
- GND: Ground
- RX: IRC Tramp input for VTX control
- 5V OUT: 5V power output (for FPV camera if required)
- GND: Ground
- VIDEO: Video signal input
The iFlight Blitz 1.6W VTX is not locked to 25mW by default, unlike the 1.6W VTX from Speedybee. I didn’t need to unlock it to select power levels higher than 25mW, though it was set to 25mW out of the box.
Here’s the manual explaining how to use it:
Power Output Testing
Here are the output power testing results using the ImmersionRC Power Meter V2. The results are decent, with the 25mW level slightly higher than expected which could be a downside for those prefer accuracy. However, most users will likely use higher power settings for flying outdoor. It’s great to know this VTX can actually deliver the advertised 1.6W!
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | |
|---|---|---|---|---|---|---|---|---|
| 25mW | 32.4 | 31.1 | 32.1 | 29.5 | 30.2 | 32.2 | 31.1 | 29.4 |
| 400mW | 330 | – | – | – | – | – | – | 370 |
| 800mW | 835 | – | – | – | – | – | – | 1000 |
| 1600mW | 1640 | – | – | – | – | – | – | 1490 |
VTX Table
To change VTX settings via OSD, you need to enter this VTX table in the CLI in Betaflight Configurator:
# vtxtable
vtxtable bands 5
vtxtable channels 8
vtxtable band 1 BOSCAM_A A CUSTOM 5865 5845 5825 5805 5785 5765 5745 5725
vtxtable band 2 BOSCAM_B B CUSTOM 5733 5752 5771 5790 5809 5828 5847 5866
vtxtable band 3 BOSCAM_E E CUSTOM 5705 5685 5665 0 5885 5905 0 0
vtxtable band 4 FATSHARK F CUSTOM 5740 5760 5780 5800 5820 5840 5860 5880
vtxtable band 5 RACEBAND R CUSTOM 5658 5695 5732 5769 5806 5843 5880 5917
vtxtable powerlevels 4
vtxtable powervalues 25 400 800 1600
vtxtable powerlabels 25 400 800 1K6
save
Don’t forget to select IRC Tramp in the Ports tab in Betaflight.
Final Thoughts
The iFlight Blitz 1.6W VTX is a decent transmitter, though a bit pricey. It delivers the expected performance and is a strong choice for those needing a powerful, compact VTX.
Get the Blitz 1.6W VTX here:
- AliExpress: https://s.click.aliexpress.com/e/_DdHhycP
- Amazon: https://amzn.to/3R5okkz