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− | == Introduction ==
| + | {{COMMON-CANSAT-ANTENNA}} |
− | What ever you do, the antenna is always one of the most sensitive component when working in the radio area.
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− | The following schema shows how to wire the RFM69HCW to transmit data.
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− | [[Fichier:ENG-CANSAT-RFM69HCW-TEST-00.jpg|520px]]
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− | As you can see, the antenna is made of a simple wire.
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− | Remove the wire and the data would not transmit at 1 meter of distance, even on the same desk!
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− | Remember, '''the antenna is the key''' to transmit data over a long distance!
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− | == Antenna connector ==
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− | The radio modules usually offer a spot to solder antenna.
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− | With the RFM69HCW the antenna spot allow you to connect an antenna in 3 different ways.
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− | [[Fichier:ENG-CANSAT-RFM69HCW-Antenna.png|240px]]
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− | Later on, you would focus on antenna choice:
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− | * A wire inside the antenna hole (also said a ''wire dipole'' or ''simple dipole'').
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− | * A {{pl|1418|µFl connector}} to plug antenna.
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− | * A {{pl|1419|PCB SMA connector}} also to plug other kind of antenna.
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− | The cheapest antenna is the wire antenna (''simple dipole'') and the best option is the SMA connector (also mode heavy).
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− | The {{pl|1418|µFl connector}} (also named uFl) is looking to this:
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− | [[Fichier:ENG-CANSAT-RFM69HCW-TEST-uFL-connector.jpg|150px]]
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− | A {{pl|1419|PCB SMA connector}} is looking to this:
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− | [[Fichier:ENG-CANSAT-RFM69HCW-TEST-SMA-connector.jpg|150px]]
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| {{ENG-CANSAT-TRAILER}} | | {{ENG-CANSAT-TRAILER}} |