From 1ba6032afcb8b77a38ea7d0a9ea9d65e9a37506c Mon Sep 17 00:00:00 2001 From: Konrad Roeder Date: Sun, 28 Aug 2022 14:56:45 +0000 Subject: [PATCH] more development of the ideas --- About.md | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/About.md b/About.md index ddf88e0..2243b32 100644 --- a/About.md +++ b/About.md @@ -1,16 +1,18 @@ - ![image](https://user-images.githubusercontent.com/3480859/184912848-8d4d0a3b-2a65-46e1-8509-cf68bb9df181.png) - # Why APRS using LoRa? -## Because we can +In short, because we can. Experimentation is the primary justification of Amateur Radio. As radio amateurs, within the confines of our international, national and sometimes local regulations, we can improve technology. APRS works well. But it can be drastically improved. + +Amateur radio is also an almost ideal solution to the problem of back up emergency communications. Depending on the type of equipment you choose, Amateur Radio radio can be portable, it can provide both short range and long range communication, and it can continue to work even when local infrastructure goes down. LoRa APRS can provide location, weather information and texting over a longer distance than conventional APRS. ## Low-cost, consumer off the shelf (COTS) hardware +The LoRa Trackers and iGates can be built from readily available consumer off the shelf hardware. ## Range -Benefits of LoRa, processing gain +LoRa is a chirp spread spectrum technology. As a result of this novel modulation having [process gain](https://en.wikipedia.org/wiki/Process_gain) LoRa can receive signals far below the noise floor. Conventional APRS is limited by having to signals above the noise floor. ## Battery power +LoRa APRS trackers require little power and can run for hours on a Li-ion battery # LoRa trackers, digipeaters and iGates