Module Information
Model: RC-TASK2-868
Description:
ASK/OOK transmitter module with Crystal oscillator.
Vdc: 2.2 ÷ 3.6Volt
Current: 21/15mA
Frequency: 868.30MHz
Power : 10dBm
Dimension: 20.32 x 11.43mm
Model: RC-TFSK3-434
Description:
433.92MHz FSK Radio Transmitter Module - Standard Pinout .
Vdc: 2.4 ÷ 3.6Volt
Current: 14.5m
Frequency: 433.92MHz
Powe : 10dBm
Dimension: 20.32 x 11.43mm
Model: RC-TFSK4-434
Description :
433.92MHz FSK Transmitter Module - Standard Pinout.
Vdc: 2.4 ÷ 3.6Volt
Current: 14.5mA
Frequency: 433.92MHz
Power : 10dBm
Dimension: 30.5 x 10.3mm
Reference Schematics
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Antenna Design Configuration
Types of antenna connectors
The original SMA design called for two compliant connectors :
SMA Female Connector
SMA Male Connector
The FCC has introduced changes regarding the use of this type of connectors regarding Part 15 compliance, which means that all SMA RF connectors are changing gender (center pin).
The modification by the FCC was instituted to prevent home users from damaging RF (home WiFi) equipment when screwing an antenna. If all antennas are female, there is no way to damage the center connector. Therefore to be compatible with FCC regulations it is necessary to use the connectors called
RP-SMA connector (where RP stands for "reverse polarity").
RP-SMA Connectors
The only thing that changed with FCC Part 15 compliance was the center pin, thus reversing the polarity of the connection and forming a "new" standard; the reverse biased SMA (RP-SMA). The RP (reverse polarity) is named after its "gender of the wire" and has an opposite sex pin. The next two photos are considered reverse polarized (RP-SMA)
RP-SMA Male connector
RP-SMA Female connector
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