Hi all,
I've been in the electronics industry for 5 years since getting my degree and was thinking it's time to set up my home lab. I have been looking at Rigol test equipment mainly because of the price vs performance of their standard equipment and because of price vs performance of upgrades that can be had by following a certain thread on this forum
Firstly, a bit about my background and needs:
The first place I worked for was a communications company where I designed for HF/VHF/UHF and then at audio frequencies. At my second place, I now design high accuracy and resolution sensor front ends for temperature sensing (thermocouple, RTDs, 4-20mA etc). I don't want to become rusty on all the comms stuff I learned since moving away from that type of work. I also want to be able to learn the sensor AFE & PSU design trades so that I can apply what I learn at home to the stuff I do at work. I also want to get into FPGAs and embedded design since that is where most of the industry is moving (in terms of work and employment prospects).
To help me get my new skill sets, I need a home project that's diverse enough to cover these disciplines.
Que the home brew 100MHz oscilloscope project
Or a home brew SDR project. Not decided which one yet.
So my requirements for my home lab equipment are for things that will allow me to consolidate what I already know and to develop my skills further.
I'm in the market for a new - scope, function gen, spectrum analyser ,RF sig gen, psu & logic analyser in order of preference.
I've saved enough to budget around 2.5-3k Euros so I will not be able to purchase everything in one go. What ever I buy will not be replaced for 7 to 10 years. If it breaks out of warranty I will probably find a way to fix it so not truly bothered about any perceived lack of build quality.
I think I will start with a scope and function gen 1st, followed by the spectrum analyser & PSU and leave the RF sig gen for when I really want to get back into comms designs.
So on to business:
On the scope side of things - I'm dithering between a DS2102 and DS4014. I think I'm heading towards the DS4014. The thinking is that I get a better scope which may save me from buying a logic analyser. (I'm thinking I will stick to serial comms like SPI and move away from parallel data buss ADCs/DACs)
Regarding the function gen: I was looking at DG4062 with the possibility of future hacks but now I see the DG1062Z. I'm not too fused about the hacks and more bandwidth since at these frequencies (>100MHz) I will most likely be working with sine waves. I may just switch to the RF sig gen or do sweeps with the spectrum analyser.
The main differences in the function gens are:
500MSPS in the 4062 vs 200 in the Z
16kpts in the 4062 vs 8Mpts in the Z (16M optional)
150 built in arb waveforms in the 4062 vs 160 in the Z
15MHz pulse frequency range in 4062 vs 25MHz in the Z
15MHz vs 20MHz in the Z for arb frequency range
2ppm VS 1ppm frequency accuracy in the Z (over 18 - 28 deg C temperature range)
5 extra modulation types in the 4062 vs the Z.
7" TFT vs 3.5" in the Z
The 4062 wider and less deep than the Z series.
Every other spec on the 4062 is matched in the Z series.
For my needs, the only thing the 4062 has going for it is the 7" display and the dimensions (its similar to the scopes, DSAs etc so will fit nicely on my shelf - not that this is the most important thing i'm looking for). I'm not fussed about the extra modulation types or 500MSPS.
The only clear thing that stands out on the Z is the memory depth.
I'm limiting my self to UK and EU distributors. So far only rigol-uk.co.uk seem to have a price for the Z series of £597. Batronix seems to be consistently cheaper and based on this difference I think the DG1062Z will go for around £550. This makes it around £100 or so cheaper than the 4062. The engineer in me says thats not worth it for a bigger screen and some modulation types. The consumer in me says thats worth it for something that will fit on the shelf + i get a bigger display for free. Id rather buy a deeper shelf for £20 and put the remaining £80 towards the spectrum analyser. Or more likely spend it on BNC cables, loads and adapters.
What do you guys think and what would you go for if you were starting with a similar budget and from scratch (but didn't need the beginner gear - irons, DVM etc)?
Cheers,
Tabs