Rush Tiny Tank review - best nano VTX available?

Introduction
The Rush Tiny Tank is a nano class VTX that has power output options of 0, 25, 100, 200 and 350mW output. It uses smart audio for parameter adjustment via betaflight OSD and has lock on technology that supposedly helps the signal. Perhaps more importantly it is very, very small and very light (1.6g). I used this VTX for my recent ultralight 3" TP3 build which I documented here.

Quick update: at time of writing there is a coupon code to get this VTX for  $17 with code BGRush12 The code expires 31 May 2020 or when they run out of stock

Background
Rush FPV as a brand is relatively new but made a huge splash with their premium full-sized tank VTX. Many found these vtxs as good if not better than the best-in-market TBS unify VTXs but as the name suggests, more robust. They followed the initial Rush Tank with the Rush race (similar but no mounting points and recently the rush mini 20mm mount. Their latest version is tiny tank reviewed here and at 1.6g is designed for micro builds or even racers (where 350mw is much more than you are allowed to run anyway). For me it is a perfect size for a toothpick build where keeping it light is the build. Due to it's small size install was simple and I was glad to see it offers multiple wiring options as below - mounted in line with camera or separately to the flight controller.

Install
I chose to mount in-line with the camera as per the middle image in an attempt to get the cleanest signal through sharing the power source for cam and VTX. It is often easier to wire like the lower picture but this different option suited my build really well. Build quality feels top notch with a sturdy looking RF shield and nice edge-mount through holes for lots of wire soldering options. There are no plugs but colour silicon-insulated wire is included for install.

Due to it's tiny size it was easy to find a spot in the canopy to install and it was nice to see it comes with a very short UFL linear dipole antenna meaning there was no unnecessary coils or loops of antenna anywhere. Originally I had planned to use my spare speedy bee LHCP nano antenna but the excess length meant I preferred the stock dipole. As you can see from the documentation below they have obviously got someone who know how to make a very good manual on board - communication is top notch. This sounds silly but when you have read as many terrible and undercooked FPV part manuals as I have you would understand!

So yeah, no need to cover the setup, this was very straightforward as above. On to performance...

Performance
I can see why Rush has won many over with their larger VTXs and this one is no exception. Signal was clear and consistent with absolutely no interference from the rest of the quad which meant I could really enjoy the image of the runcam racer nano 2 camera. I've chosen 100mW to run on but may try increase to 200mW or 350mW when I fly around more trees. For reference I use the standard receiver on the skyzone SKY03O goggles (review here) and the ORT dual shield patch array (review here) in the DVR below. Remember, this is only 100mW with a simple dipole on the quad. As best as I could evaluate this VTX has never run hot for me like the Eachine nano VTX has.

Conclusion
The Rush Tiny Tank is a very good VTX. I've used on a micro build here where the light weight makes it ideal but there is nothing to stop you using it on a larger rig especially if weight or space is at a premium. The option given for wiring mean you can make it work best for your application and of course the well presented manual (above) is a breath of fresh air. More importantly than than this though is the performance which is very good - minimal noise through the video feed from other components and great signal, which is all you can ask of a VTX. At $20-22 is typically more than the products it competes with directly like the eachine nano vtx and namelessRC nano VTX but I feel it has an advantage over these options in performance. I have seen this for special at Banggood for as low as $16 included shipping and will keep my coupon page updated if any more coupons come through for this.

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