■ Power gain: 14.7 ± 0.3 dB ■ Efficiency: 60% - 72% ■ Load mismatch: 20:1 ■ Beo free amplifier Application ■ Marine radio Description The STEVAL-TDR016V1 is a common source N- channel enhancement-mode lateral field effect RF power amplifier designed for VHF marine radio application...
VHF & UHF Model Number BF-1904 bf1904 baofeng walkie talkie Dimensions 138*61*38mm (without antenna) Frequency Range UHF 400-520MHz Water Resistance Level IPX7 Wholesale two way radio BF-1904 BF-1904 Dual Band Radio Walkie Talkie child UHF Walkie talkie BF-1904 ...
30 days47. Provided a VHF transponder is used, a ca. 30-day attachment period should limit the animal from travelling too far and provide a manageable search area for locating the device, especially if animal movement is concentrated in territories or around den sites. Research applications An ...
Since the limited study performed by Hürner and Libois ( 2005) using VHF radio tags with the aim to examine the possible overlap of territories exploited by two males, no work has characterized home range features of the species. The home range structure of birds that we highlight as part...
VesselTrackingIntroductionOurabilitytotrackvesselsforthelast70yearshasbeenprimarilydependentonVHFvoiceradiocom-municationandRADAR.ThewidedeploymentoftheGlobalPositioningSystem(GPS)andotherGlobalNavigationSatelliteSystems(GNSS)togetherwithdig-italpacketradiohasallowedshipstobeabletocommu-nicateinnewways.TheadditionofWide...
A high-resolution atmosphere–sea ice model is used to investigate the interactions between cyclones and sea ice cover in polar regions. For this purpose, a cyclone passage observed during the 1999 Fram Strait Cyclone Experiment (FRAMZY) is simulated for two consecutive days. The results of the...
The tag body was made © Inter-Research 2003 · www.int-res.com 292 Mar Ecol Prog Ser 258: 291–295, 2003 of synthetic foam containing a TDR (Wildlife Comput- ers Mk6) and a VHF radio transmitter (ATS). An 8 cm diameter suction cup (Canadian Tire) was connected to the tag body...
Tracking large marine predators in three dimensions: the real-time acoustic tracking system. IEEE J Oceanic Eng. 2008;33(2):146–57. Article Google Scholar Williams LR, Fox DR, Bishop-Hurley GJ, Swain DL. Use of radio frequency identification (RFID) technology to record grazing beef cattle...
A marine VHF radio transceiver apparatus includes an automatic identification system (AIS) transponder 31 for sending and receiving AIS messages, and an FM transceiver 32 to provide voice communication. An AIS controller 29 and a FM transceiver controller 30 cooperate to ensure that the AIS ...
■ Power gain: 14.7 ± 0.3 dB ■ Efficiency: 60% - 72% ■ Load mismatch: 20:1 ■ Beo free amplifier Application ■ Marine radio Description The STEVAL-TDR016V1 is a common source N- channel enhancement-mode lateral field effect RF power amplifier designed for VHF marine radio application...