Im not a spektrum guy but here is what I could find. That reciever might be using a protocol designed for spektrum satelite but people in this forum post couldn't verify that for sure.

This video breaks down the different protocols between flight controllers and recievers.

It looks like there is just a compatibility issue between the F4 FCs and spectrum receivers. https://github.com/betaflight/betaflight/issues/3677

Since I'm not used to spektrum I can't be much help.

Here is the cheapest alternative I can recommend

• https://www.amazon.com/FlySky-FS-i6-M2-2-4GHz-6-Channel-Transmitter/dp/B00PF160IK
• https://www.amazon.com/Flysky-FS-X6B-Receiver-FS-i10-Transmitter/dp/B01M3YJN81

About $70 on amazon.

You might be cutting it close. Here's a 6 channel tx and rx for 52$: flysky i6 Then a motor and ESC will probably run you another 30-40$. But youll also need servos (~10$) , battery connectors, batteries, charger, etc. If you already have any of those you very well might be ok.

So far this is what im thinking of getting Quad kit http://www.miniquadbros.com/collections/mini-quad-kits/products/nighthawk-170-kit-for-fpv-racing

Transmitter
http://www.banggood.com/Flysky-X6B-2_4G-6CH-i-BUS-PPM-PWM-Receiver-for-AFHDS-i6s-i6-i6x-Transmitter-p-1101513.html?rmmds=search

Controller https://www.amazon.com/gp/product/B00PF160IK/ref=crt_ewc_title_huc_1?ie=UTF8&psc=1&smid=A1PJ0S5YOZYEO4

Battery charger https://www.amazon.com/gp/product/B01E8MOG1O/ref=crt_ewc_title_huc_2?ie=UTF8&psc=1&smid=A2YGVOB7APVMLY

Fpv Goggles https://www.amazon.com/dp/B016I9KZ74/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=2L04UHZDHUT54&coliid=IZ1DGBYR0X676

Is that all i would need?