Kommunikation / Funkmodems mit breiten Spektrum
Funkmodems mit breiten Spektrum

Produktlinien

Frequency Power Output Data Rate Antenna Connector Operating Temperature Range Current Required Communication Ports Dimensions Radio Type

RF407

902 to 928 MHz 5 to 250 mW (software-selectable) 200 kbps Reverse Polarity SMA (RPSMA) jack -40° to +70°C —
  • USB Type B jack
  • CS I/O 9-pin D male
  • RS-232 9-pin D female
11.1 x 6.9 x 2.7 cm (4.4 x 2.7 x 1.1 in.)
Dimension are from the tip of the antenna connector to the other side of the case, and from the bottom of the case to the top of the DB9 connector jack screw. The width includes the thickness of the screw heads on the screws that hold the case together. 		Frequency Hopping Spread Spectrum (FHSS)

RF451

902 to 928 MHz 10 to 1,000 mW (user-selectable) — — -40° to +85°C —
  • RS-232 9 pin D female
  • USB Type B jack
  • CS I/O 9 pin D male
13.61 x 2.74 x 7.01 cm (5.36 x 1.08 x 2.76 in.) Frequency Hopping Spread Spectrum (FHSS)

RF422

863 to 870 MHz 2 to 25 mW (software-selectable; assuming 2 dBi antenna gain) — Reverse Polarity SMA (RPSMA) jack -40° to +70°C —
  • RS-232 9-pin D female
  • USB Type B jack
  • CS I/O 9-pin D male
11.1 x 6.9 x 2.7 cm (4.4 x 2.7 x 1.1 in.)
Dimensions are from the tip of the antenna connector to the other side of the case, and from the bottom of the case to the top of the DB9 connector jack screw. The width includes the thickness of the screw heads on the screws that hold the case together. 		SRD860, LBT+AFA

RF416

2.450 to 2.482 GHz 50 mW (nominal) 10 kbps Reverse Polarity SMA (RPSMA) -25° to +50°C —
  • CS I/O 9-pin D male (Newer data loggers provide power to the radio on this connector. Data loggers purchased before December 1997 require the pn 14291 Field Power Cable.)
  • RS-232 9-pin D female (4 wire: Tx, Rx, CTS, GND)
 11.4 x 7.0 x 2.9 cm (4.5 x 2.8 x 1.1 in.) Frequency Hopping Spread Spectrum (FHSS)

RF432

— — — Reverse polarity SMA -25° to +50°C — — 11.4 x 7.0 x 2.9 cm (4.9 x 2.8 x 1.2 in.) Frequency Hopping Spread Spectrum (FHSS) Transceiver

Other Considerations

Frequency Power Output Data Rate Antenna Connector Operating Temperature Range Current Required Communication Ports Dimensions Radio Type

RF427

905/920 MHz 5 to 250 mW (user-selectable) 200 kbps Reverse Polarity SMA (RPSMA) jack -40° to +70°C
  • Sleep: 0.5 mA (depending on power-saving mode)
  • Average Transmit: < 80 mA (250 mW TX Power)
  • Receive: 15 mA
  • RS-232 9-pin D female
  • CS I/O 9-pin D male
  • USB Type B jack
11.1 x 6.9 x 2.7 cm (4.4 x 2.7 x 1.1 in.)
Dimension are from the tip of the antenna connector to the other side of the case, and from the bottom of the case to the top of the DB9 connector jack screw. The width includes the thickness of the screw heads on the screws that hold the case together. 		Frequency Hopping Spread Spectrum (FHSS)

FAQs für

Number of FAQs related to Funkmodems mit breiten Spektrum: 5

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  1. How does a spread-spectrum radio work?

    Spread-spectrum radios work by frequency hopping and transmitting at discrete frequencies over part of the unlicensed band, rather than by transmitting over a very wide part of the spectrum as some other devices do.

  2. Can a spread-spectrum radio be used as a repeater in an RF telemetry network?

    Yes.

  3. Is an individual FCC license required to use a spread-spectrum radio?

    No. A spread-spectrum radio, like all FCC Part 15 devices, is not allowed to cause harmful interferences to licensed radio communications and must accept any interference that it receives. 

  4. Is there a recommended RF filter for removing local interference while using a spread-spectrum radio?

    No. Removing the interference will remove the radio signal. The radio, like all FCC Part 15 devices, is not allowed to cause harmful interferences to licensed radio communications and must accept any interference that it receives.

  5. Can a spread-spectrum radio be used to connect two computers without a datalogger?

    Yes. Two spread-spectrum radios can be used to connect two computers.