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groups:mg:phase_noise_measurement [2016/10/28 09:41] – ssauer | groups:mg:phase_noise_measurement [2018/09/04 12:47] (current) – removed ssauer | ||
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- | ====== Phase Noise Measurement ====== | ||
- | |||
- | * We measured the phase noise with FSWP from "Rohde und Schwarz" | ||
- | * Information about the measurements is in the ResLab book on the pages 134 - 136 (date: 18.08.2016). | ||
- | * measurement: | ||
- | * each device was measured directly behind the output, except it's mentioned | ||
- | * use SMA-cables instead of BNC-cables if possible, thighten the SMA-plug with an open-end wrench, use golden SMA-I-Connection (better quality) | ||
- | * don't wiggle the cable -> results in noise in the range of 1Hz - 200Hz | ||
- | * let the cable swing off bevor starting the measurement | ||
- | * check before the measurement, | ||
- | * analysis method: | ||
- | * Program " | ||
- | * Copy the program into the folder with the data, which needs to be analyzed and start the program | ||
- | * physical units: | ||
- | * dB: epresses the ratio of two values of a physical quantity | ||
- | * dBc (decibels relative to the carrier): power ratio of a signal to a carrier signal, expressed in decibels(dB) | ||
- | * dBm: abbreviation for the power ratio in decibels (dB) of the measured power referenced to one milliwatt | ||
- | |||
- | <hi #ff7f27> - Wie hatten wir gemessen? Was verwendet? | ||
- | - Klaus Zettel verwenden :-) | ||
- | - Wie hatten wir die Datei gespeichert? | ||
- | - Was is dB, dBm, dBc und wie hängt W damit zusammen? | ||
- | - Frequenzen und dBm-Zahl zu jeder Messung angeben. Gibt es noch andere wichtige Daten in der Datei?</ | ||
- | |||
- | <note important> | ||
- | |||
- | ====== 9 Atomlab ====== | ||
- | <hi # | ||
- | |||
- | {{ : | ||
- | {{: | ||
- | * 10mhz atomslab.DAT: | ||
- | * 80 mhz.DAT: 79.110.997, | ||
- | * chlocksynth.DAT: | ||
- | * wutz.DAT: 104.673.996, | ||
- | |||
- | **Observation**: | ||
- | |||
- | ====== AOM ====== | ||
- | <hi #ff7f27> Name? -> pdf und bild einfügen\\ | ||
- | als eigenes " | ||
- | * aom rf atomlab nach abschwaecher.DAT: | ||
- | * aom rf atomlab nach kabelende.DAT: | ||
- | * aom rf atomlab nach verstaerker.DAT: | ||
- | |||
- | |||
- | ====== 2 Rb clock ====== | ||
- | {{ : | ||
- | {{: | ||
- | * rb 10 mhz links.DAT: 9.999.999, | ||
- | * rb 10 mhz rechts.DAT: 9.99.999, | ||
- | * rb 5 mhz 2.DAT: 4.999.999, | ||
- | * rb 5 mhz.DAT: 4.999.999, | ||
- | |||
- | ** Question: | ||
- | **Note:** "rb 5 mhz 2.DAT" and "rb 5 mhz.DAT" | ||
- | |||
- | ====== 8 fiber stabilization====== | ||
- | <hi # | ||
- | {{ : | ||
- | {{: | ||
- | * synth. fiber stab. ext. mod.DAT: 79.110.937, | ||
- | * synth.fiber stab. refext..DAT: | ||
- | |||
- | ====== 10 thesizer von Q-Port ====== | ||
- | {{ : | ||
- | {{: | ||
- | * qport internal.DAT: | ||
- | * qport 10mhz ext. direkt stab. auf ocxo.DAT: 987.733.301, | ||
- | * qport 10mhz ext.internal.DAT: | ||
- | |||
- | ====== 5.1 Resonator ====== | ||
- | {{ : | ||
- | {{: | ||
- | * eom r2 sznth.DAT: 16.200.005, | ||
- | * synth. r2 aom refext..DAT: | ||
- | * synth. r2 aom refext. richtig.DAT: | ||
- | |||
- | ====== 6 Resonator 1 and 2 ====== | ||
- | {{ : | ||
- | {{: | ||
- | * synt. r1-r2 10mhz ext. direkt.DAT: 340.999.989, | ||
- | * synz. r1-r2 10mhz ext. indirekt.DAT: | ||
- | * synt. r1-r2 internal.DAT: | ||
- | |||
- | ====== 7 rep rate ====== | ||
- | {{ : | ||
- | {{: | ||
- | * synth. rep rate 10mhz ext. direkt.DAT: 1.000.000.248, | ||
- | * synth. rep rate 10mhz ext. direkt with 10mhz with real cable.DAT: 1.000.000.249, | ||
- | * synth. rep rate 10mhz ext. indirekt.DAT: | ||
- | * synth. rep rate 10mhz ext. indirekt with real cable.DAT: 999.997.802, | ||
- | * synth. rep rate 10mhz ext. indirekt with real cable with 10mhz.DAT: 1.000.000.249, | ||
- | * synth. rep rate internal.DAT: | ||
- | |||
- | ====== 5.2 Pound-Breher-Hall ====== | ||
- | {{ : | ||
- | {{: | ||
- | * pdhlock2.DAT: | ||
- | * pdhlock.DAT: | ||
- | * pdhlock int.DAT: 13.810.004, | ||
- | * pdhunlocked.DAT: | ||
- | |||
- | **Question: | ||
- | |||
- | ====== 3: 10 MHz distribution ====== | ||
- | <hi # | ||
- | {{ : | ||
- | {{: | ||
- | * 10mhz atomslab.DAT: | ||
- | * 10mhz k&k verteiler.DAT: | ||
- | * 10mhz ocxo stab indirect synth 2.DAT: 9.999.999, | ||
- | * 10mhz ocxo stab synth.DAT: 9.999.999, | ||
- | * 10mhz selbst.DAT: 9.99.999, | ||
- | * 10mhz selbst no others.DAT: 9.999.999, | ||
- | * ocxo 3.DAT: 4.999.999, | ||
- | |||
- | **Question: | ||
- | What was measured with "10mhz ocxo stab indirect synth 2.DAT", | ||
- | They need to be looked at in the original condition in the AFS! | ||
- | |||
- | ====== 4: 10 MHz synthesizer ==== | ||
- | <hi # | ||
- | {{ : | ||
- | {{: | ||
- | * 10mhz internal synth 2.DAT: 10.000.000, | ||
- | * 10mhz ocxo stab indirect synth 1.DAT: 9.999.999, | ||
- | * 10mhz ocxo stab synth 2.DAT: 9.999.999, | ||
- | * 10mhz ocxo stab synth 3.DAT: 9.999.999, | ||
- | * 10mhz open synth 2.DAT: 9.999.474, | ||
- | |||
- | ====== 10MHz OCXO doubling ====== | ||
- | ===== 5MHz moving cable test ===== | ||
- | {{ : | ||
- | {{: | ||
- | * 5mhz moving cable test.DAT: 4.999.999, | ||
- | * 5mhz without moving.DAT: 4.999.999, | ||
- | |||
- | ===== 5MHz to 10MHZ OCXO ===== | ||
- | {{ : | ||
- | {{: | ||
- | * 5mhz + amp.DAT: 5.000.000, | ||
- | * 5mhz.DAT: 4.999.999.825716 Hz [18.08.2016] | ||
- | * 5mhz + doubler + amp.DAT: 9.999.999, | ||
- | * 5mhz + doubler.DAT: | ||
- | * 5mhz + splitter.DAT: | ||
- | |||
- | ===== 5MHz to 10MHz OCXO again ===== | ||
- | {{ : | ||
- | {{: | ||
- | * after ocxo and doubler.DAT: | ||
- | * after ocxo.DAT: 4.999.999, | ||
- | * ocxo 3.DAT: 4.999.999, | ||
- | |||
- | ===== 5MHz OCXO with/ | ||
- | {{ : | ||
- | {{: | ||
- | * 5mhzrg58smaocxo.DAT: | ||
- | * 5mhzrg58smaocxo w k+k supply ext supply.DAT: 4.999.999, | ||
- | * 5mhzrg58smaocxo wo k+k supply ext supply.DAT: 4.999.999, | ||
- | |||
- | ===== 10MHz amplifier ===== | ||
- | {{ : | ||
- | {{: | ||
- | * 10mhz amp.DAT: 9.999.999, | ||
- | * 10mhz amp mass_002.DAT: | ||
- | * 10mhz amp mass.DAT: 9.999.999, | ||
- | |||