Review: HGLRC Zeus Nano VTX – Flexible Mounting Solution

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HGLRC Zeus Nano VTX is a compact video transmitter that can fit in almost all micro quads with its special, flexible mounting solution. It has a microphone, has plenty of output power, and weighs under 3 grams!

Learn more about video transmitters in this buyer’s guide.

You can pick up the HGLRC Zeus Nano VTX from these vendors, these are affiliate links.

An IPEX (U.FL) to SMA adapter, as well as a simple antenna with IPEX connector are provided in the bag.

The Zeus Nano is probably one of the most convenient nano video transmitters when it comes to mounting.

It has holes for mounting on top of 3 different types of flight controller stack: 25.5×25.5mm tiny whoop FC (e.g. Crazybee Pro), 20x20mm and 16x16mm. And if you don’t want to mount it on top of an FC, you can just remove the mounting tabs with a pair of pliers to save some weight and space!

Here’s the specifications of the HGLRC Zeus Nano VTX:

  • Built-in Microphone for audio
  • Input voltage: DC 5V
  • 4 Output Power Selection (And Current Consumption)
  • Antenna Connector: IPEX
  • Supports 5 bands 40 channels. A/B/E/F/R
  • Supports VTX Control via Tramp Protocol
  • Mounting Holes:
    • M2: 16X16mm, 25.5X25.5mm
    • M3: 20X20mm
  • Size:18.6mm x 13.6mm x 6mm
  • Weight: 2.4g 2.6g

The Zeus Nano only takes 5V, and can draw up to 400mA of current, make sure your flight controller can handle that before hooking up.

There is a button on the VTX for changing VTX settings such as channel and power, but you can also do that through Betaflight OSD if you setup Tramp protocol in Betaflight. I highly recommend doing that, because it’s super complicated to rely on the button and status LED’s. Just take a look at the manual and you’ll see 🙂

Even though the Zeus Nano has a heatsink, it still only weighs 2.6g, compared to the 2.0g of another popular option, the Eachine Nano 2 (including wires). This does not sound much, but a considerable difference when it comes to micro quads. However the Zeus Nano is cheaper, and power testing performed better as well.

And if you remove the mounting holes, you can save about 0.5g of weight.

I tested the HGLRC Zeus Nano VTX with the Powermeter from ImmersionRC, and here are the measurements.

I am very happy with the result, output powers measured a bit higher than specs on all channels, with the exception of 350mW, probably because of the amount of heat it generates, anyway it was very close so not an issue at all.

Note that output power on 25mW are quite a bit higher than specified. This is generally not an issue unless you go to a proper race event, where rules might be strict about having 25mW or lower.

R1 R2 R3 R4 R5 R6 R7 R8
5658 5695 5732 5769 5806 5843 5880 5917
25mW 37 35 36 36 33 33 32 28
100mW 128 / 126 / 118 / 107 /
200mW 223 / / / 206 / / /
350mw 347 / / / 339 / / /

In order to change VTX settings through Betaflight OSD, you’ll also need to setup VTXTable in Betaflight first.

It’s simple, just enter these lines of code in Betaflight CLI. Please remove channels that are not legal to use in your region by setting it to zero.

# 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 5645 5885 5905 5925 5945
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 25 100 200 350
vtxtable powerlabels 25 100 200 350



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