GW Instek SFG-1013 DDS Function Generator with Voltage and 6 Digit LED Display, 0.1Hz to 3MHz Frequency

The only thing I don't like about it is the user interface. To adjust fine increments of 1Hz, you must use the arrowkeys to move the cursor to the place holder. It's not great for sweeping a range of values....but over all I'vebeen happy to have a useable function generator up to 3Mhz ( i think...). Higher freq and a sweep function and/orbetter controls probably bump you up into the next price category....

This is one of the best investments in electronics I have made. Incredible value (features & functions per $). Intuitive, easy, and fun to use; performance easily matches specs. I'd buy a second one in a flash.

Great low priced low end function generator. Easy to use. Good documentation. Added photo of my measurement of full scale output of GW Instek measured on Tek 2215 set for 5 V/Div. Shows 20V peak-to-peak, no load directly connected to scope probe. Scope seemed to be calibrated ok at .2V, although some difference at 5V is probable. Hope this is helpful.

Right now, I'm giving this a 1 star - I recently (outside of the 30 day return window) discovered that one of the LED crystals does not work - this means an '8' looks like a '0' for that digit, so "x.xx8x" looks just like "x.xx0x", entering "88888" shows "88808". This makes the unit useless to me. If you buy one of these, that should be the first you check, not that I would have thought to do so.I'd like to hear back from the manufacturer, we'll see.

Product is non-intuitive. Only way to get a square wave is to use the TTL output. (Who uses TTL any more?).Analog out amplitude is via variable control. No way to set output via keypad

I really like this unit a lot and found it a pleasure to use. I didn't realize you adjust the Duty cycle by pulling the knob out. Guess that's what we get for tossing the manual aside. Adjusting the digit position is great. I was able to precisely get the right frequency of a running motor after putting a led on it to flash at a particular frequency. Very fun and useful.

This unit was for me the right balance between price and capability - mileage may vary for others. Most of the use I've made of it (using the book Electronic Circuits for Evil Genius, 2nd) has been at much lower frequencies than its maximum of 3 MHz. I was concerned that my oscilloscope can process 100 MHz signals but this unit can only send 3 MHz, but I haven't needed anything higher. This unit arrived very quickly and is as advertised.

Functional, and easy to use (intuitive). Would be useful if it it included instructions, but they are available from Manufacturer.I found a slight drift in the frequency, which I am not sure whether to attribute to the scope I was measuring with or this instrument (+/- .09 hz in the 10 hz setting). That aside the investment paid for itself in 5 minutes, and will continue to do so every time it is turned on.

This is excellent value and works really well. It has both push button frequency selection and a dial sweep so you can sweep a range of frequencies to get a plot on the scope of frequency response (which normally requires a ramp function). The best I could find with a fair bit of research.