permanent download (Free Archive id): 2a78b1750ab56030337eafcff9e2a54e1da7599ef83cfd5a8af9e9ac491b5106
mime/type: text/html
source: http://elpub.wdcb.ru/journals/rjes/v10/2007ES000227/2.shtml
description: Information-measuring complex and database of mid-latitude... (interesting about the buzzer ;-) "[33] The equipment resolution, or its sensitivity, depends on the frequency stability of the heterodyne receiver and carrier wave of the radio transmitter. The highly stable broadcasting radio station working in a short wave range is used as radio transmitter. The radio receiver basic generator is the quartz generator with proportional thermostat system of the resonator, providing the frequency stability about 10 -8. So the resolution of the measuring complex on frequencies about 10 MHz is provided at 0.1 Hz level. With decreasing of a radio frequency this value decreases proportionally. Main parameters of the measuring are<br /> <br /> * carrier wave frequency 4.625 MHz;<br /> * receiver resolution ~0.1 Hz. "
tags: buzzer the_buzzer radio am fa:archive research emitter
initially imported by adulau on Wed, 09 Jun 2010 18:27:40 +0000