This article refers to the address: http:// Automatic gain control circuit to improve the listening effect. The TL is an induction coil for a telephone device that is made by winding a few hundred pieces of permalloy sheets with a 0.08 mm high-strength enamelled wire around several hundred turns. When using, the switch K board is placed on the TL, and the hearing aid is placed beside the telephone, the call content of the telephone can be heard, and the volume control is provided to facilitate the patient to make
The Description of 3G Rubber Antenna:
The 3G Rubber Antenna is a multiband Covert Omni Antenna that allows the use of multiple frequency bands with a single antenna. Suitable for Frequencies: HSDPA, UMTS (3G) (1920-2770 MHz), GSM (2G) 900 (824-960 MHz), DCS 1800 (1710-1880 MHz)
3G Rubber Antenna Polarization: Vertical | 3G Rubber Antenna Connector Type: Customized | Impedance:50 ohm | VSWR:2 Input
The Advantage of 3G Rubber Antenna:
1,Rich experience , proven technique
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4,OEM/ODM available
5,Perfession servie
6,ISO:9001 certification
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9,R&D
10,Huge Capacity
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