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Ligne 1 :
Ligne 1 : − + + + + + + + + + − What ever you do, the antenna is always one of the most sensitive component when working in the radio area. Ligne 9 :
Ligne 16 : − + − − Remove the wire and the data would not transmit at 1 meter of distance, even on the same desk! − − Remember, '''the antenna is the key to transmit data over a long distance!'''
Modèle:COMMON-CANSAT-ANTENNA (voir la source)
Version du 31 juillet 2025 à 23:24
, 31 juillet 2025 à 23:24→Introduction
== Introduction ==
== Introduction ==
The [[ENG-CANSAT-PICO-RFM69HCW-TEST|xxxx]]
The [[ENG-CANSAT-PICO-RFM69HCW-TEST|RFM69HCW Testing]] shows how to transmit data back and forward between 2 radio modules.
This looks simple with the quarter wave antenna, however such general purpose antenna is not tailored for long distance communication.
{{tmbox | type = speedy | text = What ever you do, the antenna is always the most sensitive component when working with radio communication.
Wrong antennas design may ruin the communication below 1 meter. Great antenna design with attention to details will allow the RFM69 module to transmit data from 1 to 2 Km.
'''The antenna is the key to transmit data over a long distance!''' }}
The following schema shows how to wire the RFM69HCW to transmit data.
The following schema shows how to wire the RFM69HCW to transmit data.
[[Fichier:ENG-CANSAT-RFM69HCW-TEST-00.jpg|520px]]
[[Fichier:ENG-CANSAT-RFM69HCW-TEST-00.jpg|520px]]
As you can see, the antenna is made of a simple wire.
As you can see, the antenna is made of a simple wire.
== Antenna connector ==
== Antenna connector ==