====== Synthesizer ====== ===== Important Synthesizers for ResLab ===== ^ Typ Synthesizer ^ Application ^ Frequency [Hz] ^ RF-Power [dBm] ^ Reference ^ Comment ^ | Marconi 2024 | Reprate | 1 000 000 226 | 7 | Passive H-Maser | | | Marconi 2024 | Amplifier for 10 MHz distribution | 10 000 000 | 14 | Rb Clock | | | Marconi 2024 | Stell-AOM Mixdown | 74 940 000 | 7 | Rb Clock | | | Marconi 2024 | Free | | | | was broken | | Marconi 2023B | Free | | | | | | Rhode&Schwarz SMC100A | Free | | | | | | Rhode&Schwarz SMC100A | 30m Fiber stabilization Reference | 160 222 000 | 4 | Rb-Clock | | | Rhode&Schwarz Hameg HM8134-3 | 30m Fiber stabilization | 80 111 000 | 1.4 | Rb-Clock | * ext. Mod. on (400 kHz Dev.) \\ * Name: AOM2 \\ * Shit stability | | Rhode&Schwarz Hameg HM8134-3 | Free | | | | Shit stability! | | MG520 M Frequency Generator | EOM R1 | 13 810 000 | 10 | Rb-Clock | | | Rhode&Schwarz SMH 845.4002.52 | EOM R2 | 16 200 000 | 13 | Rb-Clock | | | Rhode&Schwarz SML01 | Double-pass AOM R1 | 104 630 000 + Computer | 13 | Rb-Clock | * Name: AOM0 \\ * located in upstairs-Lab | | Rhode&Schwarz SMC100A | * Linewidth Lock with Blue AOM R1 \\ * 5m Fiber stabilization | 77 111 000 | 2 | Rb-Clock | * Name: AOM1 \\ * located in upstairs-Lab | | Rhode&Schwarz SMY01 | 5m Fiber stabilization Reference | 77 111 000 | 5 | Rb-Clock | * Name: AOM1 \\ * located in upstairs-Lab | | | Double-pass AOM R2 | | | | ===== Specks ===== ^ Typ Synthesizer ^ Phase Noise @ 1 GHz [dBc] ^ Resolution [Hz] ^ | Marconi 2024 | -90 @ 100 Hz \\ -100 @ 1 kHz \\ -115 @ 10 kHz \\ -121 @ 20 kHz | 0.01 < 100 Hz \\ 0.1 < 1 kHz \\ 1 < 20 kHz | | Marconi 2023B | -75 @ 100 Hz \\ -100 @ 1 kHz \\ -112 @ 10 kHz \\ -121 @ 20 kHz | 1 | | Rhode&Schwarz SMC100A | -45 @ 1 Hz \\ -70 @ 10 Hz \\ -82 @ 100 Hz \\ -100 @ 1 kHz \\ -115 @ 10 kHz **with internal OCXO** | 0.1 | | Rhode&Schwarz Hameg HM8134-3 | -15 @ 1 Hz \\ -50 @ 10 Hz \\ -80 @ 100 Hz \\ -100 @ 1 kHz \\ < -100 @ 10 kHz | 1 | | Rhode&Schwarz SML01 | -95 @ 1 Hz \\ -120 @ 10 Hz \\ -130 @ 100 Hz \\ -138 @ 1 kHz \\ -148 @ 10 kHz **with 9.5 MHz output frequency** \\ -128 @ 20 kHz **with 1 GHz output frequency** | 0.1 | ===== Marconi Synthesizer ===== ==== Marconi Synthesizer 2024 ==== {{:groups:mg:marconi2024_wm.png?300 |}} * Manual 2024: {{ :groups:mg:ifr_2024_datasheet.pdf |}} * possible settings: Frequenzbereich von 9 kHz bis 2,4 GHz, Auflösung 1 Hz, Ausgangspegel von -140 bis +13 dBm, Auflösung 0,1 dB, interne 2-Ton-Modulationsquelle für Sinus, Rechteck und Dreieck, lineare und logarithmische Wobblung, AM, FM, pM, Puls und FSK, Rückleistungsschutz bis 50 W, LC-Display, nummerische Tastatur, GPIB und RS-232\\ **Options**\\ 01 No attenuator \\ 03 high Power \\ 04 high stability frequency standard \\ 11 Fast pulse and high power \\ * **Error message**: "External reference is missing!!!"{{:groups:mg:img_1394.jpg?300| }}\\ * **Important:** External(Ext): 1 Ext 10MHz direct\\ (MENÜ)-Button -> Frequency/Sweep (Select) -> 4 Frequency standard (Select) -> 1 Ext 10MHz direct\\ * **Possible errors**: no Rb-referenz/ GPS/ OXCO connection or wires connected? * **Normal state** (10MHz):{{:groups:mg:img_1393.jpg?300| }} ==== Synthesizer is broken? ==== Manual for repair: http://www.ko4bb.com/getsimple/index.php?id=manuals&dir=Marconi\\ Quick repair project (Marconi 2024): a forum where severel defects are presented and explained how to fix them: http://www.eevblog.com/forum/repair/quick-repair-project-marconi-2024/\\ **Output signal (dBm) is too small:** Probably the amplifier is broken. Check backwards the signal inside the synthesizer with a measuring tip. - Adjust the frequency of the half from the maximal Oszi-frequency - Measure the distance between the minimum and maximum sinus-signal. Half of the distance devide by root(2) provide the effective voltage - Use the data sheet for dBm calculation: {{ :groups:mg:dbm-volts-wattconversion.pdf |}} ** Solved Problems:** - Problem: No Output Signal * Solution: Transitor TR708 was broken. The Transistor has been replaced by a BC847 Transitor. ==== Marconi Synthesizer 2023B (ehemals ausgeliehen von Q-Port)==== {{:groups:mg:mar_2023b_wm.png?300 |}} * Manual 2023B:{{ :groups:mg:datenblattmarifr2023b_2025.pdf |}} ===== Rohde&Schwarz Synthesizer ===== ==== Rohde&Schwarz Synthesizer SMC100A ==== {{:groups:mg:private:resonatoren:synthesizer:smc100a.jpg?300 |}} * Manual SMC100A:{{ :groups:mg:private:resonatoren:synthesizer:smc100a_operatingmanual_en_09.pdf |}} * Datasheet SMC100A:{{ :groups:mg:private:resonatoren:synthesizer:smc100a_dat-sw_en.pdf |}} ==== Rohde&Schwarz Synthesizer SML01 ==== {{:groups:mg:private:resonatoren:synthesizer:sml01.jpg?300 |}} * Datasheet SML01:{{ :groups:mg:private:resonatoren:synthesizer:rohde-schwarz-sml01-datasheet.pdf |}} ==== Rohde&Schwarz Synthesizer Hameg HM8134-3 ==== {{:groups:mg:private:resonatoren:synthesizer:hameg_hm8134-3.jpg?300 |}} * Manual Hameg HM8134-3:{{ :groups:mg:private:resonatoren:synthesizer:hm8134-3_usermanual_de_en_04.pdf |}}