Hameg HMO3524 or 2524-Pro's and Con's - Page 1
Forum section: electronics / general

author: djsb
author_rank: Super Contributor
timestamp: January 02, 2012, 12:09:47 pm
content: I'm looking to invest in a Hameg HMO3524 (350MHz)(http://www.hameg.com/621.0.html?L=0) or HMO2524(250MHz) (http://www.hameg.com/551.0.html?L=0) 4 channel digital scope. I don't want to spend more than I need to and I'm wondering if the cheaper 2524 is better even though the sampling rate is half that of the 3524.As I mess about with FM radio receivers now and then as well as PIC's I'm thinking the extra bandwith is a plus.Can someone help me to clarify things so that I make the right choice.Thanks.David.PS The 3524 is about 4K (including VAT) and the 2524 about 3K.

author: EEVblog
author_rank: Unknown
timestamp: January 02, 2012, 12:26:39 pm
content: I'd save the $1000.Realistically, there won't be a huge practical difference between a 250Mhz bandwidth scope and 350MHz one, at least not for 33% more $$$$The 2.5GS/s is plenty for 250MHz bandwidth, and would only be a problem if it drops when all the channels are switched on? (looks like it halves per 2 channels - still not an issue)The 2524 actually has faster sample rate and more memory on the logic analyser:http://www.hameg.com/fileadmin/user_upload/downloads/katalog/HAMEG_Overview_HMO_HOO_EN.pdfI can't see where the 3524 adds 33% extra value...For the extra money you could buy the logic analyser option?Dave.

author: DaveW
author_rank: Frequent Contributor
timestamp: January 02, 2012, 03:39:09 pm
content: I believe the 3524 actually has a noisier power supply than the others in the range, which diminishes the low noise ADC and low sensitivity settings somewhat. The faster sample rate is useful if you're doing high speed sampling across 4 channels, but can't imagine that'll come up too often, and it's more common to be looking at the IF for RF applications, not the output signal.I'd definitely get the logic analyser input probes and some decode options if you're using this with PICs-the CAN & LIN decode I believe is still free until February.I bought the HMO2024 a couple of weeks ago and it's a great scope, have a look at SJ Electronics for buying it as they've got a two year warranty, and they'll come down in price if you point out you can buy it from Conrad in Germany for less.If you want to have a hands on with the 2024 feel free, but it's definitely a good buy, and would recommend the 2524 over the 3524. Hope this helps,David

author: djsb
author_rank: Super Contributor
timestamp: January 02, 2012, 03:55:05 pm
content: This is the reply I got directly from Hameg about the Youtube video complaining about the noisy power supplyHMO 3524 power supply noise problem-pre sales questionDear Sir or Madam,I am considering buying a new HMO3524 Oscilloscope. However this videoon youtube about noise on the power supply of this model concerns meHas this problem been rectified in the latest production models? If so,from which serial number have the changes been made to remove the defect.I hope this problem is no longer present in new models.Yours Faithfully,David BriscoeLondon,UKSubject: Antwort: HMO 3524 power supply noise problem-pre sales questionFrom: vertrieb@hameg.comDate: 01/01/2012 16:11To: david@djsbriscoe.vispa.comDear Mr. Briscoe,we know this customer and we know this effect.As always in such forums/Youtube you will find from single users such kind of information from nearly any vendor.If you take a look to the first part of the scene you will see, that the user have put a 20cm lead between Probe Tip and Probe Ground.With this 'antenna' he captures everything from the air and from the ground line and this is an 'untypical' measurement application.If he connect the probe to a device under test with shortest possible ground connection it will just work fine.If the scope is used correctly to measure a device under Test and not itself it works properly.Nevertheless we have changed the power supply design more than 18 monthes ago, what dramatically reduced such effects.All of our coming products will follow this desgin, but again, this particulare HMO is within specification and under correct use (short and safe grounding at the DUT) measurements are not effected.Best Regardsi. V. Thomas ModenbachDirector SalesHAMEG Instruments GmbHIndustriestr. 663533 MainhausenContact details removed,available on request.They responded very quickly to my question even though it was a public holiday. Anyway I love Hameg equipment.David.

author: firewalker
author_rank: Super Contributor
timestamp: January 02, 2012, 04:08:32 pm
content: Actually yes, if you want to measure something like that put some foil on the top of the probe, not a big wire (not saying there isn't a problem though).Alexander.

author: hacklordsniper
author_rank: Frequent Contributor
timestamp: January 02, 2012, 04:11:46 pm
content: Hameg is a pleasure to work with many manufacturers should look up to them. Cant wait to get my HMO though...As second i can reproduce that many crap on a display of my batter powered Scope if i use the configuration as the author of youtube video.

author: DaveW
author_rank: Frequent Contributor
timestamp: January 02, 2012, 05:28:49 pm
content: Ahhh, that's good, I had hoped for better from Hameg, their customer service is superb and they gave me loads of information when I was buying mine. I'm finishing off editing a video review at the moment, but I'll attach some pics of it being fed a 20mV and 2mV signal from a HP3325A sig gen, and an FFT of the same

author: EEVblog
author_rank: Unknown
timestamp: January 02, 2012, 08:44:38 pm
content: Quote from: DaveW on January 02, 2012, 03:39:09 pmSo they give away least useful onesDave.

author: djsb
author_rank: Super Contributor
timestamp: January 02, 2012, 08:55:10 pm
content: As far as I can tell it's just a software key (same as agilent does). I've asked sjelectronics if I can choose the serial protocol decode option instead of the CAN/LIN option for free. The students at work use CAN for their motorsports projects so it may still be useful for me. We'll see.David.

author: DaveW
author_rank: Frequent Contributor
timestamp: January 02, 2012, 10:56:12 pm
content: Quote from: EEVblog on January 02, 2012, 08:44:38 pmShould have got it a couple of days ago-I got RS232, SPI, I2C, CAN & LIN