Agilent/hp 54503a 500 Mhz 4 Channel Digital Oscilloscope W 10430a 10:1 Probe

US $495.00

  • Loveland, Colorado, United States
  • Jan 29th
General Description/Specs What you get: This is a refurbished 54503A Telecom option 001 500 MHz 4 channel digital Oscilloscope with one 10430A 500 MHz probe and power cord. What you see in the pictures is what you get. (Not the test board) It has passed all self-tests and is calibrated. See the pictures. Good chassis. NO display burn! The pictures show the main menus. Study the pics to learn about functionality. About the 54503A The HP 54503A Digital Oscilloscope is a general purpose four channel random repetitive scope with 500 MHz bandwidth. It has eight bit vertical resolution, and 20 MHz sample rate. The random sample interval is 50 nsec, but sample placement relative to the analog trigger on any acquisition is precise to within 40 psec. Therefore with repetitive signals and multiple acquisitions, a waveform with 40 psec resolution can be constructed. Very precise timing measurements are possible on repetitive signals. The channels have 1mV to 5V/div sensitivity in a 1-2-5 sequence. Inputs are 50 ohm or 1Meg. The time base provides sweep speed range of 200 psec to 5 S/div in 1-2-5 sequence. Dual time base windowing can be used to expand a displayed waveform for a detailed view. Display modes Envelope mode produces two traces, min and max. This mode is useful for jitter measurements. Normal mode is useful for single shot captures (2-channel simultaneous sampling). Average mode allows removal of random noise and improves resolution to 10 bits. Variable or infinite persistence is useful for envelope measurements. Other features include: 1.   Autoscale to automatically find and display signals 2.   16 automatic pulse parameter measurements 3.   Easy waveform storage into memory. (1K Ch memory and pixel memory) 4.   Full programmability over HP-IB 5.   Waveform math 6.   Hardcopy to external HP-IB printers Via HP-IB and internal firmware.  7.   Capture events negative in time from the trigger event 8.   Complex trigger (Edge, 4 Ch pattern, state, Delay  or TV) 9.   Time base windowing 10.                     Manual or automatic cursors for measurements.     I was product support engineer on this product before I retired. Any 54503A I sell will be fully tested. It will also be fully calibrated. I do not have a standards traceable cal lab, but any unit I sell will meet performance specs at an ISO certified lab. If you have problems, please contact me for fair resolution.    Electronic condition… Excellent … Good attenuators  New battery Cosmetic condition is very good. NO Burn on the CRT. See the pictures. Shipping and Handling…  I will add shipping to your invoice based on location. I charge only for the actual shipping cost. I ship UPS ground if in the USA.  International shipping (some countries are NOT possible) Contact me for shipping cost. If international, I ship USPS express mail. On heavy items I would prefer to ship to you on your DHL account. If not your DHL account, I can ship USPS express mail international but only if the item conforms to size limitations set by your countries’ customs. (Example… Germany has a limit of 108 inches of girth + length). Some countries have the limit at 96 inches.  Warranty… Contact me for fair resolution on any problem. Thanks for looking. Feel free to contact me with questions. Choosing the right scope for your application You need to purchase the right scope for your application. In general the first consideration is bandwidth. If a scope’s bandwidth is specified at 500 MHz, then that means that it will have a flat response over a frequency spectrum from DC to the specified bandwidth limit. Of course it is not flat to the very high limit. The spec’d upper bandwidth limit is the point at which the scope response is at minimum .707 of the actual signal level. Ideally the upper bandwidth roll off is Gaussian at 6 db per octave.   But bandwidth is not that simple. You need to be aware of the bandwidth in both the “Single Shot / Real Time” mode as well as in the “Repetitive” mode.   Repetitive mode… In the repetitive mode the waveform is constructed by triggering and acquiring data on successive repeating events. If the particular signal of interest is repetitive like a system clock, then a very accurate waveform can be constructed from repeated acquisitions. Data is randomly captured into a circular buffer through an A/D converter. Then a fine interpolator is used to precisely (40 psec or better) measure the time between the samples taken and the analog trigger event. Data can now be placed in a memory buffer precisely positioned in time. With successive acquisitions, the buffer is eventually filled. High bandwidth can be achieved with relatively less expensive A/D converters. “Real Time / Single Shot” mode… In this mode, the entire waveform must be captured on a single trigger. Naturally this requires a very high performance FAST A/D converter. The fine interpolator is still used to place data precisely relative to the analog trigger event.  The bottom line on bandwidth… If you are trouble shooting and looking for a rare glitch that might cause an error in your system, you need to think about “Real Time / Single Shot bandwidth”.  One trigger for one full waveform! On the other hand if you are designing a clock distribution system and are looking at repetitive clocks, then repetitive bandwidth will work fine for you. Bandwidth, Sample rate, channel count, memory depth, and trigger features must all be considered. If you are trouble shooting logic circuits, the complex trigger features will be very important. I would rate trigger features as the second most important feature. Can you trigger on a narrow pulse or a glitch that is a rarely occurring event?  Pattern and glitch trigger are essential if you are doing any serious trouble shooting. Do you really need 4 channels? If not you will pay a premium for something you may never use. The attenuators on the front end are expensive, and yes it is worth it if you need it. Let’s say you are measuring setup and hold on a flip flop. You need to see input, output and clock. That’s three! Of all the scopes I sell, the HP 54501A and the 54503A are optimized to be high bandwidth repetitive scopes. They do have a low single shot bandwidth capability. The 54502, 54504,5,6,54510A/B and 54512B are the Single Shot scopes designed for Single Shot work.  They could easily have 500 MHz repetitive bandwidth like the 54503A but their analog bandwidth has been limited slightly to prevent aliasing during digital reconstruction. For example, the 54510A\B have a 1 GSa/s A/D converter so the sample interval is 1 nsec. We like 4 samples per period for reconstruction so a 250 MHz signal (4 nsec period) would be sampled 4 times by a 1 GSa/s A/D. Note in the table that some scopes are BOTH single shot and repetitive.    Model Repetitive  bandwidth Single Shot  Bandwidth Sa/s Chans Adv Trig FFT Sequential single shot** 54501A 100 MHz 1 MHz 10 MSa/s 4(2+2) Yes No No 54600B 100 MHz 2 MHz 20 MSa/s 2 No No No 54602B 150MHz 2 MHz 20  MSa/s 4(2+2) No No No 54503A 500 MHz 2 MHz 20 MSa/s 4 Yes No No 54610B 500 Mhz 2 MHz 20 MSa/s 2 No opt No 54502A* 400 MHz 100MHz 400 MSa/s 2 Yes No No 54504A 400 MHz  50 MHz  200MSa/s 2 Yes No No 54615B 500 MHz 250 MHz 1 GSa/s 2 no opt no 54510A 300 MHz 250 MHz 1GSa/s 2 Yes no No 54505B 300 MHz 125 MHz 500 MSa/s 2 Yes Yes Yes 54510B 300 MHz 250 MHz 1 GSa/s 2  Yes Yes Yes 54506B 300 MHz 125MHz 500 MSa/s 4 Yes Yes Yes 54512B 300 MHz 250 MHz 1GSa/s 4 Yes Yes Yes 54520A 500 MHz 250 MHz 1 GSa/s 1  on Yes Yes Yes  54520A   “ 125 MHz 500 MSa/s 2 on Yes Yes Yes 54616B 500 MHz 250 MHz 2 GSa/s 2 on no opt No 54540A 500 MHz 500 MHz 2GSa/s 1 on Yes Yes Yes  54540A   “ 250 MHz 1 GsSa/s 2 on Yes Yes Yes 54522A 500 MHz 500 MHz 2 GSa/s 2 on Yes Yes Yes 54542A 500 MHz 500 MHz 2 GSa/s 4 on Yes Yes Yes 54720A 54720D 1.1  GHZ 2 GHz 1 GHz possible 2-8 GSa/s 4 slot Yes Yes No   *This is a 6 bit A/D converter. All the others are 8 bits. **Special feature called sequential capture. Also deep memory and memory bar display The 54720A/D is a very high performance separate family of scopes see my write up on this line of scopes I was product support engineer on this product before I retired. Any 545XX I sell will be fully tested for all possible failures. It will also be fully calibrated.  I do not have an ISO traceable cal lab, but any unit I sell will pass calibration at an ISO lab. If you have problems, please contact me for fair resolution.    About Watronics… I am a retired (35Year) HP/Agilent Oscilloscope design engineer. I buy HP/Agilent scopes on EBAY that are in need of repair. If they are listed as; “parts only”, “Condition unknown”, or “as is”, I bid. I then recondition them such that they pass all self-test and pass calibration. Of course not all units can be repaired. I disassemble these units for parts. Agilent has classified many of these units as obsolete and parts are not available from Agilent. I have accumulated many of the obsolete parts and many are listed in my store “watronics92” I will run the auto self cal on any unit I sell, but I do not have an ISO certified lab.  Any unit I sell will pass calibration at an ISO calibration lab.  
Condition Seller refurbished :
An item that has been restored to working order by the eBay seller or a third party not approved by the manufacturer. This means the item has been inspected, cleaned, and repaired to full working order and is in excellent condition. This item may or may not be in original packaging. See the seller’s listing for full details.
Seller Notes See tyhe pictures of actual unit. The probe does not include accessories / ground lead

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