HC12 Range Issue

Paul_KD7HB · April 16, 2019, 5:15pm

the mantra of RF guys: solve RF problems with antennas first. they are cheap, they are easy, and they produce the greatest effect for the least cost and effort

433 mhz is also a ham band. googling 70 cm antenna will keep you busy all day.

homebrew antenna projects

short and simple:
one to one, fixed locations, use directional gain antennas on both ends
one to many, fixed locations, use an omnidirectional antenna on the one end and directional on the many
one to any, mobile, useomnidirectional antennas

the easiest omnidirectional gain antenna to build and use is the collinear. good for up to 15 db of gain. anyone claiming more has knowledge of the laws of physics he is not sharing, or he is a liar

the benefits of gain antennas work equally well on both ends of a link. if you stick up a 15 dbi gain antenna, every link gets 13 db gain over a standard issue 2.14 dbi gain dipole, on both ends

I built the 9db collinear antenna years ago. Still have it. Worked Great!

Paul

Topic		Replies	Views
HC12 Range Issue Networking, Protocols, and Devices	9	7612	May 6, 2021
Antennas for HC-12 module... what's the difference? Project Guidance	8	2763	May 5, 2021
Range of HC12 transceiver module Networking, Protocols, and Devices	9	1536	May 6, 2021
Hc-12 module - do I need external antenna? Networking, Protocols, and Devices	8	5221	May 6, 2021
HC12-Module transmission power decrease and increase Networking, Protocols, and Devices	5	822	May 6, 2021

HC12 Range Issue

Related Topics