Running this after several hours i could see sun jan 3 yesterday i removed the 1k resistor and replaced by a 5k1 resistor. This powerful interface design software offers readytouse resource kits to. The lpro101, by comparison, did not seem to be fazed by any physical abuse i dared inflict upon it. I used the counter for a long time with an external ocxo and then later an rb osc. The hp 10544 ocxo is used in the hp 5328 universal counter. All of our manuals come with a 14day, moneyback guarantee you will be responsible for a restocking fee. Recently i have been using this free circuit drawing software from digikey. The efratom model frsc rubidium standard the efratom model frs rubidium standard is a subminiature, atomic resonancecontrolled oscillator that provides an extremely stable signal of 2.
Its browserbased so you dont have to download anything. Other useful information would include your experience with similar products, infomation on a product that you. Apply the input signal between pin a rubidium in and pin b ground, as shown in figure 1 the input conditioning circuit is designed to be compatible with the lpro101 specifications with a typical. I bought a refurbished efratom lpro101 from the second hand market. The surplus 10 mhz rubidium frequency standard lpro. If payment is not made within 24 hours of the transaction, we reserve the right to cancel the transaction and relist the item. Scadalink schematicpro is an enterprise software suite for documenting metering schematics for upstream exploration and production companies. Since then, the bench dog product line of router tables, safety accessories, and shop tools has steadily expanded. However, you can program the frequency offset via rs232 serial commands though, see control. Click to viewdownload the pdf version of the schematic and all kit information.
The efratom lpro101 is a rb oscillator that can used to discipline. All commercial rubidium frequency standards operate by disciplining a crystal oscillator to the hyperfine transition at 6. The best manuals online instant service manual download. The next revision will also remove the footprint for the ublox receiver and rf circuitry, ill replace that with sockets for a. Bench dog was launched in the midnineties with the simple idea that great tools were the result of extensive experience, thoughtful design, and exacting engineering. This document describes howto adjust an efratom lpro101 using. Experience with the efratom lpro101 has shown that this box capable of. Source code, schematics and pcb can be downloaded here. So the lpro rubidium oscillator was built into an ibm netvista computer tower circa windows 2000. So i produced a screw driver those one i have owned were to short. Efratom lpro101 repair reference guide by pe1fbo, 2010. Schematicpro provides both excel and visiolike schematic views, allowing the users to choose the most effective method to capture and view the metering schematic data. Basically, the unit powers up correctly, but the no gps led never. It is also often used to draw oneline diagrams, block diagrams, and presentation drawings.
Lpro 4000 user manual lpro 4000 function logic diagram antivirusantispyware software if an antivirusantispyware software on your local system identifies any of the erlphase applications as a potential threat, it will be necessary to configure your antivirusantisoftware to classify it as safe for its proper oper. A closer view of the voltage converter may be found here. Efraton rubidium atomic oscillator frequency standard. Regarding the output of the lpro101, it has series resistors of two times 10k. Schematic and parts list on both units is a bit of a mystery. I dont know much about amp circuitry i dont even know enough to make much sense of these schematics.
The lpro101 diy rubidium clock generator diy audio blog. Lpro 101 rubidium timebase with distribution amplifier and pll. In situations like this, i use inkscape to make great looking schematic diagrams that show exactly what i want to show. Welcome to the schemeit free online schematic and diagramming tool digikey electronics schemeit project. Using the lpro 101 as a 10 mhz reference for microwave transverters.
Searching the ebay one might find quite a lot of solutions. Using the program, i did a binary search by first selecting rather large offset. The pixma pro100 wireless professional inkjet printer possesses the functionality and technology you need to achieve highquality output so your prints can look as good as the images you capture. Apply the input signal between pin a rubidium in and pin b ground, as shown in figure 1 the input conditioning circuit is designed to be compatible with the lpro 101 specifications with a typical input signal of 0. Operators manual for the lpro101 this contains useful information on the hookup and operation of one of these units. Efratom lpro101 distribution amplifier with pll uwes tinkerblog. Its coming from china and i paid about 80 eur in october 2010. You need a 24v dc power supply capable of delivering about 1. Unfortunately, not all rubidium units are created equal. Schematicpro, schematic drawing software custom design electrical schematics, exstensive parts library, import export schematics, save in many formats including graphic files. Photo 2 shows a top view of the module and photo 3 shows the bottom. The easytouse graphical interface allows users to create schematics quickly by dragginganddropping objects onto the viewport. The next revision will also remove the footprint for the ublox receiver and rf circuitry, ill replace that with sockets for a ublox breakout board that ive designed, pcbs to come soon.
Here you can find free datasheets, service manuals, schema, schematic diagrams and software downloads, service menu and mode information, code calculators for many brands of equipment i hope this web site will be useful for all technician, working in the field of electronic repairs. Its time to step up to the large format, professional quality printer youve been dreaming about. Schematics archives diy audio blog, audio workshop. Workshop manuals free online workshop repair manuals. Ive spotted a small problem already, the mounting holes for the lpro101 are a bit too far apart, the next pcb revision will correct that. Complies with fcc 47cfr part 15, subpart b, emission requirements for a class b device when connected with shielded cable and connectors in accordance with. This box together with some additional electronics on a separate pcb will transform this lpro unit into stand alone equipment. The lpro uses something a bit less conventional, but still available. Efratom used to be part of the ball corporation but is now part of datum. Ottimo per le librerie personalizzabili ed esportabili. If you need to use a dedicated schematic package, as part of a pcb layout, then id also recommend gschem, part of the geda suite. I looked online for the hp 5328 and hp 10544 schematic diagrams, and quickly reverse engineered the interface.
Getting this rubidium frequency standard on ebay is a simple deal and a good one. Efratom lpro101 verteilverstarker mit pll uwes bastelblog. But even without the addition of a gps discipline circuit, the lpro101 is. The conditioning circuit is designed to be compatible with the lpro101.
Schemeit free online schematic and diagramming tool. Diagram of the unit integrating the fe5680a rubidium frequency reference. This document describes howto adjust an efratom lpro101 using a ntp daemon. It supports pcb layout programs with several netlist formats and can also produce spice simulation netlists. I used a squaring circuit from the efratom lpro 101 rb oscillator datasheet which has worked very well for me in the past. Having a frequency standard that can achieve such high accuracy, and is stable. Except for the fan, front panel led bracket and a few wires, the rest of the pc got tossed. The primary use of the module is to condition the 10 megahertz mhz signal from a rubidium oscillator such as the lpro101 or frsc units manufactured by efratom ball, inc. The surplus 10 mhz rubidium frequency standard lpro101 by. Lpro101 header pinout the module provides a 10mhz sine wave output at around 0. Inside the enclosure containing the 10 mhz rubidium frequency reference. Comparing the fe5680a to the lpro 101, i find the former to be somewhat inferior in its susceptibility to changes in its physical environment and operating voltage, but this is just my perception. The lm257712 19 volt upconverter can be seen soldered to the circuit board mounted to the wall of the box. Diy repair manuals is a trusted resource for both independent diyers and corporate clients that want the necessary reference material on hand to service their own fleet of automobiles or equipment.
The model lpro 101 makes use of the atomic resonance property of rubidium 87 rb to control the frequency of an unheated quartz crystal oscillator via a frequencylocked loop fll. Ez schematics pro ez schematics pro is the easiest cad program available for developing electrical schematics including hydraulic andor pneumatic diagrams. If you need a simple and fast way to draw a schematic diagram, its the best. The lpro 101, by comparison, did not seem to be fazed by any physical abuse i dared inflict upon it. A closeup view of the distribution amplifier and status indicatordriver circuit. The input signal is applied between the module pins labeled k and l ground, as shown in the schematic. What else it is, if one who dont even have frequency counter yet. Workshop repair and service manuals all makes and models free online. The new version v6 is easy to learn and easy to use.
Schemeit is a free online schematic drawing tool that will allow you to produce professional looking schematic diagrams, add corresponding part numbers, and share your schematic with others. The lpro101 diy rubidium clock generator september 15, 2019 by ventsislav simonov leave a comment the diy lpro101 ruibidioum clock generator. Lpro 4000 user manual lpro 4000 function logic diagram antivirusantispyware software if an antivirusantispyware software on your local system identifies any of the erlphase applications as a potential threat, it will be necessary to configure your antivirusanti software to classify it as safe for its proper oper. The chassis now hosts the lpro rubidium oscillator, a frequency lock indicator, numerous meters and the condor linear power supply. All touchlink pro touchpanels can be customized using extron gui designer software. Datum lpro rubidium frequency standard leap second. Efratom lpro101 distribution amplifier with pll uwes. The conditioning circuit is designed to be compatible with the lpro 101 specifications with a typical input signal of 0. The model lpro101 makes use of the atomic resonance property of rubidium 87 rb to control the frequency of an unheated quartz crystal oscillator via a frequencylocked loop fll. Describe your experience with the leo bodnar electronics gpsdo precision frequency reference and tell us why you give it the rating you did required. The lro101 is a well known choice among the diy community. For sine to ttl conversion i use the recommended schematic from lpro101s datasheet.
The picture on the left shows the adapter module in more detailt. The fe interfaces through a db9 connector you can get pretty easily. Analog isolated outputs with low distortion and ttl outputs at 2. I used a circuit from the efratom lpro 101 rb oscillator datasheet which has worked very well for me in the past. I used the counters internal xtal oscillator very briefly, and was absolutely disgusted with its performance. You can find a comprehensive repair guide here and the datasheet is located here. Pixma pro9000 mark ii inkjet photo printer pixma pro9000 mark ii inkjet photo printer pixma pro9000 mark ii inkjet photo printer document kit. Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. Since i am really paranoid when it comes to delicate equipment like the lpro 101 the first thing i built was a buffer amplifier for the 10 mhz output of the lpro. The lpro lets you look at a voltage to watch the vcxo tune, the fe lets you play with often undocumented serial commands see whats going on. Comparing the fe5680a to the lpro101, i find the former to be somewhat inferior in its susceptibility to changes in its physical environment and operating voltage, but this is just my perception. We provide highquality, instant manual and software downloads we are offering the best service manuals online for a wide variety of motorcycles, dirt bikes, tractors, trucks, engines, construction and agriculture equipment.
Lpro101 rubidium timebase with distribution amplifier and pll. Ive always wanted a good and affordable frequency standard for my home lab. One of the popular uses of surplus rubidium frequency references is as a precision 10 mhz reference for use with transverters as used on the microwave amateur bands such as 10 ghz. The sine signal is ac coupled into the input of a fast cmos inverter. The efratom lpro101 is a rb oscillator that can used to discipline the flex5000 and flex1500. It is a well documented piece of equipment and a good choice for the diy enthusiast on a budget. Schematic of the power supply and interface portions for. Ive spotted a small problem already, the mounting holes for the lpro 101 are a bit too far apart, the next pcb revision will correct that. I also added the lpro case temperature sensor and worked out the adc scaling to report in degrees c. Some weeks ago you could buy it for less than 80 usd. My 5328s ocxo failed a while ago, and used replacement hp 10544 ocxo units were pretty expensive. Outputs at 10 kilohertz and below, although generated by software within a timer.
A portable 10 mhz rubidium frequency reference using the fe5680a. The lm35 sensor senses the temperature and sends its output to a g5 amplifier. Tinycad is a program for drawing electrical circuit diagrams commonly known as schematic drawings. A gps clock, or gpsdisciplined oscillator gpsdo is a combination of a gps receiver and a highquality, stable oscillator such as a quartz or rubidium oscillator whose output is controlled to agree with the signals broadcast by gps and gnss satellites. Schematicpro provides both excel and visiolike schematic views, allowing the users to choose the most effective method to capture and view. See the lpro 101 rb oscillator datasheet for a great comparison of several ways to convert a 10 mhz sine into a 10 mhz square wave.
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