The RST-CH4601A from Raltron is a Antenna with Frequency 1.227 to 1.609 GHz, Gain 3 to 33 dBi, Operating Temperature -40 to 85 Degree C, Storage Temperature -55 to 85 Degree C, Noise Figure 2 dB. Tags: Active, Helical. More details for RST-CH4601A can be seen below.