Review: HGLRC Zeus Nano VTX – Flexible Mounting Solution

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.

Where to Buy?

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.

Specs and Features

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.

Output Power Testing

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
25mW 37 35 36 36 33 33 32 28
100mW 128 / 126 / 118 / 107 /
200mW 223 / / / 206 / / /
350mw 347 / / / 339 / / /

Betaflight VTX Table

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

6 thoughts on “Review: HGLRC Zeus Nano VTX – Flexible Mounting Solution

  1. DaniM

    Hi Oscar,

    Sadly the antenna didn’t break by the connector. The antenna broke internally. Like this:
    youtu.be/SNC82WnsFZ0

    I also talked to them, to ask them to improve the vtx. They told that they will take mi request in consideration, and they compensated me with a new vtx.

    Reply
    1. Oscar Post author

      I see, so no physical damage to the VTX? maybe the antenna broke and the VTX overheats? Glad you got a replacement anyway.

      Reply
  2. DaniM

    I installed another one. And another one dies. In this case the lollipop antenna was broken in a crash and the zeus nano vtx died with the antenna. I hope they fix this problem in a future version, because the image quality it offers is good, besides having audio.

    Reply
    1. Oscar Post author

      If you can kill the Zeus Nano you’ll probably kill any others will the same UFL connectors, you need to somehow strap the antenna to the frame to stress relive the tension from the connector.

      Reply
  3. DaniM

    I have installed one in my kwad, and I have mixed feelings about this product. On one hand I really love it because it allows me to know when I go low throttle when I fly (thanks to the microphone). The video is very stable, and good quality, compared to the Pandarc Minix (it is awful). On the other hand what bugs me off is that forgetting to connect the antenna or losing the antenna in a crash will destroy the zeus mini.
    This is an outstanding vtx. The work hglrc did is awesome, but please, please tell hglrc to put some mechanism to prevent this little jewel to killing itself when antenna is not plugged!

    Reply
    1. Oscar Post author

      that’s a good point, i will pass along the suggestion!
      It’s a common issue with UFL connectors, it’s easy to disconnect by accident. Even if you add some kind of locking mechanism you can pull the whole connector off, which can permanently damage the VTX. The best way around this is to secure your antenna on the frame to stress-relive the pressure from the connector.

      Reply

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