UHF/VHF电台 / RF303
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这个产品是无效的且被替换: RF321,RF322.
RF303 UHF Radio Transceiver
Services Available
Repair No
Calibration No
Free Support No

概览

The RF303 is a DRL UHF radio transceiver for customers who will have an FCC-assigned frequency in the range of 403 to 419 MHz. It's programmed to an exact user-specified frequency by Campbell Scientific using special software.

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相似产品

技术说明

NOTE: The RF300-series transceivers are still available for customers who already own RF300-series transceivers, but for newer radio customers, the RF310-series is usually a better choice.

The RF303 is a Dataradio 3412-210 UHF radio transceiver for customers who have an FCC-assigned frequency in the range of 403 to 419 MHz. The transceiver is programmed to an exact user-specified frequency by Campbell Scientific using special software.

Besides the radio, each field station and repeater station must also have an RF500M Radio Modem or RF95(A) Radio Modem; base stations need an RF500M radio modem, RF500B base station, or RF232(A) base station.

产品规格

  • Power Output: 5 W at 13.3 V nominal
  • Frequency Control: Synthesized
  • Channel Spacing: 12.5/25 kHz
  • Operation Voltage: 13.3 Vdc nominal
    (10 to 16 Vdc operational)
  • Current Drain:
    50 mA quiescent,
    ~ 1.5 A while transmitting
  • Dimensions:
    11.7 x 8.4 x 5.6 cm
    (4.6" x 3.3" x 2.2")
  • Operating Temperature:
    -30° to +60°C
  • Humidity: 95% maximum RH at 40°C, non-condensing

兼容性

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

数据采集器

Product Compatible Note
21X (retired)
CR10 (retired)
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR211X (retired)
CR216X (retired)
CR23X (retired)
CR295X (retired)
CR3000 (retired)
CR500 (retired)
CR5000 (retired)
CR510 (retired)
CR800 (retired)
CR850 (retired)
CR9000 (retired)

Additional Compatibility Information

Radios, Radio Modems, and Radio Base Stations

The RF303 is compatible with the RF500M radio modems, RF500B base stations, RF95(A) radio modems, RF232(A) base stations, E.F. Johnson-series radios, and P50-series radios. The RF303 is NOT compatible with the RF310M radio modem, RF310B Base Station, and RF310-series radios.


常见问题解答

RF303: 1

  1. It is possible to connect two antennas to a single radio via a properly specified (operating frequency and power handling capability) two-way, 50 ohm RF power divider. One example of this type of power divider is offered by Pasternack. Note that using a device like this will induce additional losses into the system (3 to 4 dB, typically).