title: A design and construction of 4 channel biotelemetry device employing indoor.
abstract: In this study, 4 channel biotelemetry device was designed and implemented for monitoring physiological and biological signals of the patients at indoor. Body temperature, respiratory rate, heart rate, electrocardiogram (ECG) and electromyogram (EMG) signals were transmitted using 10 mW 433 MHz and 500 mW 868 MHz FM/FSK transmitter with 9.6 Kps transmission speed. At indoor, receive signal strength indicator (RSSI) levels were measured and compared with 433 and 868 MHz carrier frequency. The placement of repeater at indoor was decided as a result of RSSI measurement.
authors.affiliation: Gazi Universitesi Teknik Eğitim Fakültesi, Elektronik ve Bilgisayar Eğitimi Bölümü, Teknikokullar, 06500 Ankara, Turkey.
authors.forename: Ugur
authors.initials: U
authors.lastname: Fidan
authors.forename: Nihal Fatma
authors.initials: NF
authors.lastname: Güler
mesh_terms: D001698:Biomedical Engineering; D004867:Equipment Design; D006801:Humans; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D011846:Radio Waves; D012815:Signal Processing, Computer-Assisted; D013686:Telemetry / Q000295:instrumentation*