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- | ====== 10MHz frequency source ====== | ||
- | |||
- | ===== Possible sources ===== | ||
- | All sources exist in ResLab. | ||
- | - [[.: | ||
- | - [[.: | ||
- | - OXCO 5 MHz | ||
- | - OXCO 10 MHz (broken) | ||
- | - [[.: | ||
- | |||
- | - [[.:GPS receiver|GPS receiver]] | ||
- | - [[.:Marconi synthesizer|Marconi Synthesizer]], | ||
- | - Selfmade distributor [Klaus] | ||
- | - K+K distributor (not for high quality distribution) | ||
- | - HighTec Fiber ??? | ||
- | |||
- | ==== Current Setup [30.05.2017] ==== | ||
- | {{ : | ||
- | {{ : | ||
- | |||
- | ===== Future Setup ===== | ||
- | {{: | ||
- | * {{ : | ||
- | * {{ : | ||
- | |||
- | | **Experiment** \\ Ansprechperson Experiment \\ Ansprechperson Kabelverlegeung | ||
- | | **ResLab** \\ S. Sauer \\ S. Sauer | ||
- | | **Atom-Lab-Mg** \\ S. Sauer \\ W. Friesen | ||
- | | **KRb** \\ J. Peise \\ A. Igel | ||
- | | **QAI,EPR** \\ J. Peise \\ C. Pür | D313 -> D315 | ||
- | | **ATLAS** \\ H. Albers \\ H. Albers | ||
- | | **VLBAI** \\ E. Wodey \\ ? | ||
- | | **Quantengravi** \\ J. Mathias \\ ? | ||
- | | **AG S.& C. Ospelkaus** \\ Mirko Sierke \\ S. Grondwoski | ||
- | | **Q-Port** \\ S. Bode \\ ? | ||
- | | **Lasus** \\ Thejs \\ ? | D220 | ||
- | | **Maius** \\ D. Becker | ||
- | | **AG Morgner** \\ B. Kreipe | ||
- | ^ Gesamt | ||
- | ===== To Do ===== | ||
- | **1)**\\ | ||
- | < | ||
- | < | ||
- | < | ||
- | * "GPS ->" Rb-10Mhz [right Output] -> BNC cable -> BNC-I-connector -> BNC-SMA-connecotor -> long cable -> PNA | ||
- | {{: | ||
- | < | ||
- | * Channel J1 and J2: OCXO -> short cable -> SMA-I-connector -> long cable -> PNA\\ | ||
- | {{: | ||
- | < | ||
- | * J1 -> short cable -> SMA-BNC-connector -> TP [6MHz] -> long cable -> PNA | ||
- | {{: | ||
- | * J1 -> short cable -> SMA-BNC-connector -> TP [6MHz] -> Doubler [FD-2+] -> BNC-SMA-connector -> long cable -> PNA | ||
- | {{: | ||
- | * J1 -> short cable -> SMA-BNC-connector -> TP [6MHz] -> Doubler [FD-2+] -> BNC-SMA-connector -> BP [SBP-10.7+] -> long cable -> PNA | ||
- | {{: | ||
- | * J1 -> short cable -> SMA-BNC-connector -> TP [6MHz] -> Doubler [FD-2+] -> BNC-SMA-connector -> BP [SBP-10.7+] -> BNC-SMA-connector -> Att. [10dB] -> BNC-SMA-connector -> long cable -> PNA | ||
- | {{: | ||
- | * Overall setup: J1 -> short cable -> SMA-BNC-connector -> TP [6MHz] -> Doubler [FD-2+] -> BNC-SMA-connector -> BP [SBP-10.7+] -> BNC-SMA-connector -> Att. [10dB] -> short BNC-cable -> Amplifier [ZFL-500LN-BNC+] -> LP [BLP-15] -> Att. [20dB] -> Att. [3dB] -> BNC-SMA-connector -> long SMA cable -> PNA | ||
- | {{: | ||
- | < | ||
- | * Currently not possible. | ||
- | |||
- | |||
- | **2)**\\ | ||
- | < | ||
- | **3)**\\ | ||
- | < | ||
- | **4)**\\ | ||
- | < | ||
- | **5)**\\ | ||
- | < | ||
- | ====Distibution==== | ||
- | * Timetech distributor: | ||
- | * Spectra dynamics distributor: | ||
- | |||
- | ^ Feature | ||
- | ^ Phase Noise [dBc] | ||
- | ^ Channel/ | ||
- | ^ Groundloops | ||
- | ^ RF-Bandwidth [MHz] | 5 to 100 MHz\\ sine wave \\ useable from 100kHz to 200 MHz | +/- 1 dB\\ 0.5-65 (min 1-50) | | ||
- | ^ Input Level [dBm] | Input level working: +6 to +17 (+14 dBm @ 100 MHz)\\ | ||
- | ^ Output Level [dBm] | <hi # | ||
- | ^ Gain [dB] | Gain: 0 (+0.15/-0.1 dB, 1 – 100 MHz, +0.15 to –0.5 dB @ 200 MHz)\\ Gain variation: | ||
- | ^ Impedance [Ω] | Input: 50, nominal\\ Output: 50, nominal | ||
- | ^ Return loss [dB] | Input: >45 @5MHz and 10 MHz, >30 @100 MHz\\ Output: >50 @5MHz and 10 MHz, >30 (typ –35) @ 100 MHz | Input(S11): -35 (max -30)\\ Output(S22): | ||
- | ^ Distortion [dBc] | <hi # | ||
- | ^ Temp. Delay Coefficient | ||
- | ^ Connectors | ||
- | ^ Power connectors | ||
- | ^ Number of Outputs | ||
- | ^ Number of Inputs | ||
- | ^ More | {{: | ||
- | |||
- | **6)**\\ | ||
- | < | ||
- | **7)**\\ | ||
- | < | ||
- | ==== Which cables? ==== | ||
- | * Best choise (cost-effectiveness) < 150 MHz: {{ : | ||
- | * Aircell 5 for > 100 MHz, low attenuation for higher frequecies: [[http:// | ||
- | * For high frequencies <10 GHz: {{ : | ||
- | * **Testing cable:** | ||
- | * Offenes Ende vermessen, dann sollte es Hochohmig sein | ||
- | * Auf einer Seite mit 50 Ohm verbinden und vermessen: 50 Ohm+Kabelwiderstand (<3-4 Ohm ist ok) | ||
- | * Wenn der Kabelwiderstand höher ist, dann wurden vermutlich beim Crimpen (Luft-)Übergangswiderstände erzeugt | ||
- | |||
- | ==== Which connectors? ==== | ||
- | * BNC or SMA? | ||
- | |||
- | **8)**\\ | ||
- | < | ||
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- | ====OCXO==== | ||
- | * Vibration isolation for the OXCO? | ||
- | * Frequency double, how? | ||
- | |||
- | |||
- | ====Filters==== | ||
- | * 5MHz | ||
- | * 10MHz | ||
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