# Help with 433Mhz Transmitter, Receiver, Simplex comms and Nano (30 m range) **URL:** \ **Category:** General Guidance\ **Created:** [August 18, 2020, 7:27pm UTC](https://forum.arduino.cc/t/help-with-433mhz-transmitter-receiver-simplex-comms-and-nano-30-m-range/670730 "2020-08-18T19:27:27Z")\ **Posts on this page:** 1\ **Showing post:** 17
**Author:** ![DrAzzy](https://avatars.discourse-cdn.com/v4/letter/d/eb9ed0/32.png) [@DrAzzy](https://forum.arduino.cc/u/DrAzzy)\ **Post date:** [August 19, 2020, 8:17pm UTC](https://forum.arduino.cc/t/help-with-433mhz-transmitter-receiver-simplex-comms-and-nano-30-m-range/670730/17 "2020-08-19T20:17:56Z")
Didn't read past first post, forgive me if I missed important details but... Those green receivers SUCK, with a capitol S, U, C and K (and one could add a few more letters to some of those for emphasis...). Get an RXB-12 or RXB-14 on ebay. They're like a buck a pop, and are WAY THE HELL BETTER than those green things. 20-50x the range, and they don't lock into a non-functional state when used at short range like the green trash ones do. The cheapo green transmitters are fine. Those springy antennae are terrible too. Absolute trash. I couldn't tell you why, I'm no RF engineer, but they sucked in my tests. Almost worse than no antenna at all. What I do is cut up ethernet or telephone wires with the solid-core wire, cut to the appropriate length (what, 17.3 cm?), strip one end and solder in place. Got ~1000' range with green cheap transmitter and RXB-12 that way, even with my halfassed non-optimized "AzzyRF" OOK protocol. Probably could have done more if I had a longer line of sight... And a wiley fox? You should be good... I'd be nervous of any sort of gadgets around a wiley coyote though, that never seems to end well... --- _[View the full topic](https://forum.arduino.cc/t/help-with-433mhz-transmitter-receiver-simplex-comms-and-nano-30-m-range/670730)._