. . "The receiver is functional part of BricSat satellite dedicated for reception of low bandwidth modulated signals in 28MHz band. Input is equipped with low noise amplifier, which is necessity due to electrically short receiving antenna. Input filter follows and then signal flows to mixer for intermediate frequency. Intermediate frequency signal is then filtered with quartz filter with 3kHz bandwidth and mixed to base band. Automatic gain control is implemented and its value is one of output signals. There is implemented detector of BPSK31 signal occurrences also. Base band signal is output to other blocks of satellite. Receiver also includes the detector of commanding signals for control of satellite from ground. As part of the receiver there is also implemented AD converter which collects information about onboard battery and nonvolatile memory for backup operation of onboard control computer."@en . . . . . "P\u0159ij\u00EDma\u010D pro experiment\u00E1ln\u00ED dru\u017Eici BricSat"@cs . . "P(ED2.1.00/03.0072), P(EE2.3.20.0007), P(GAP102/10/1853), S" . . . "P\u0159ij\u00EDma\u010D pro experiment\u00E1ln\u00ED dru\u017Eici BricSat" . "V\u00E1gner, Petr" . . "[A6D49C58C06E]" . "Jedn\u00E1 se o experiment\u00E1ln\u00ED za\u0159\u00EDzen\u00ED - ekonomick\u00E9 parametry nejsou vy\u017Eadov\u00E1ny. Hodnota za\u0159\u00EDzen\u00ED je 15 000 USD." . . . "Rozm\u011Br desky: 2.5x2.5 palce Kmito\u010Det 28 MHz, SSB modulace, \u0161\u00ED\u0159ka p\u00E1sma 3 kHz, vstupn\u00ED citlivost -120dBm, nap\u00E1jec\u00ED nap\u011Bt\u00ED 5V, spot\u0159eba 27mA" . . "P\u0159ij\u00EDma\u010D pro experiment\u00E1ln\u00ED dru\u017Eici BricSat"@cs . "26220" . . . . "CubeSat, spectrum monitor, BPSK31, Bricsat, receiver"@en . "3"^^ . "161598" . . "Urbanec, Tom\u00E1\u0161" . "P\u0159ij\u00EDma\u010D pro experiment\u00E1ln\u00ED dru\u017Eici BricSat" . . "RIV/00216305:26220/12:PR26204!RIV13-GA0-26220___" . . "Receiver for experimental satellite Bricsat"@en . . . . "3"^^ . "P\u0159ij\u00EDma\u010D je funk\u010Dn\u00EDm blokem experiment\u00E1ln\u00EDho satelitu Bricsat ur\u010Den\u00E9ho pro p\u0159\u00EDjem \u00FAzkop\u00E1smov\u011B modulovan\u00E9ho sign\u00E1lu v p\u00E1smu 28 MHz. Na vstupu je p\u0159edzesilova\u010D LNA, kter\u00FD je pot\u0159eba vzhledem k elektricky kr\u00E1tk\u00E9 p\u0159ij\u00EDmac\u00ED ant\u00E9n\u011B. D\u00E1le je za\u0159azen vstupn\u00ED filtr a sm\u011B\u0161ova\u010D na mezifrekvenci. MF sign\u00E1l je filtrov\u00E1n krystalov\u00FDm filtrem s \u0161\u00ED\u0159kou p\u00E1sma 3 kHz a sm\u011B\u0161ov\u00E1n do z\u00E1kladn\u00EDho p\u00E1sma. Demodulovan\u00FD sign\u00E1l je pou\u017Eit pro AGC a tak\u00E9 pro detekci p\u0159\u00EDtomnosti modulace BPSK31 v sign\u00E1lu. Demodulovan\u00FD sign\u00E1l je v\u00FDstupem pro dal\u0161\u00ED zpracov\u00E1n\u00ED v dru\u017Eici. P\u0159ij\u00EDma\u010D d\u00E1le obsahuje detektor \u0159\u00EDd\u00EDc\u00EDch sign\u00E1l\u016F pro povelov\u00E1n\u00ED dru\u017Eice ze zemsk\u00E9ho povrchu. Sou\u010D\u00E1st\u00ED p\u0159ij\u00EDma\u010De je tak\u00E9 AD p\u0159evodn\u00EDk pro sb\u011Br dat o stavu palubn\u00EDho akumul\u00E1toru a pam\u011B\u0165ov\u00FD modul pro z\u00E1lohu dat \u0159\u00EDd\u00EDc\u00EDho po\u010D\u00EDta\u010De dru\u017Eice. Propojeni s dal\u0161\u00EDmi \u010D\u00E1stmi dru\u017Eice je provedeno 20 pinovou sb\u011Brnic\u00ED integruj\u00EDc\u00ED nap\u00E1jen\u00ED, digit\u00E1ln\u00ED i analogov\u00E9 sign\u00E1ly do mal\u00E9 plochy." . "Kasal, Miroslav" . . . "Receiver for experimental satellite Bricsat"@en . "RIV/00216305:26220/12:PR26204" . . "P\u0159ij\u00EDma\u010D je funk\u010Dn\u00EDm blokem experiment\u00E1ln\u00EDho satelitu Bricsat ur\u010Den\u00E9ho pro p\u0159\u00EDjem \u00FAzkop\u00E1smov\u011B modulovan\u00E9ho sign\u00E1lu v p\u00E1smu 28 MHz. Na vstupu je p\u0159edzesilova\u010D LNA, kter\u00FD je pot\u0159eba vzhledem k elektricky kr\u00E1tk\u00E9 p\u0159ij\u00EDmac\u00ED ant\u00E9n\u011B. D\u00E1le je za\u0159azen vstupn\u00ED filtr a sm\u011B\u0161ova\u010D na mezifrekvenci. MF sign\u00E1l je filtrov\u00E1n krystalov\u00FDm filtrem s \u0161\u00ED\u0159kou p\u00E1sma 3 kHz a sm\u011B\u0161ov\u00E1n do z\u00E1kladn\u00EDho p\u00E1sma. Demodulovan\u00FD sign\u00E1l je pou\u017Eit pro AGC a tak\u00E9 pro detekci p\u0159\u00EDtomnosti modulace BPSK31 v sign\u00E1lu. Demodulovan\u00FD sign\u00E1l je v\u00FDstupem pro dal\u0161\u00ED zpracov\u00E1n\u00ED v dru\u017Eici. P\u0159ij\u00EDma\u010D d\u00E1le obsahuje detektor \u0159\u00EDd\u00EDc\u00EDch sign\u00E1l\u016F pro povelov\u00E1n\u00ED dru\u017Eice ze zemsk\u00E9ho povrchu. Sou\u010D\u00E1st\u00ED p\u0159ij\u00EDma\u010De je tak\u00E9 AD p\u0159evodn\u00EDk pro sb\u011Br dat o stavu palubn\u00EDho akumul\u00E1toru a pam\u011B\u0165ov\u00FD modul pro z\u00E1lohu dat \u0159\u00EDd\u00EDc\u00EDho po\u010D\u00EDta\u010De dru\u017Eice. Propojeni s dal\u0161\u00EDmi \u010D\u00E1stmi dru\u017Eice je provedeno 20 pinovou sb\u011Brnic\u00ED integruj\u00EDc\u00ED nap\u00E1jen\u00ED, digit\u00E1ln\u00ED i analogov\u00E9 sign\u00E1ly do mal\u00E9 plochy."@cs . . "A-receiver01" . .