hi just a general question, i dont know if anybody is running this or something similar but wondered if a zotac id41 box would be powerful enough to record 2 dvb-t broadcasts simultaneously?. the unit spec is as follows:-

CPU Compatibility
Name Intel® Atom™ D525 (dual-core) (1.8 GHz)
Socket NA (integrated CPU)
Frontside bus 800 MHz

i have 4GB of ram fitted, running a internal SSD, will record to unraid server.

ideally would like to either use hdhomerun boxes or usb tv tuners

edit - sorry forgot to mention, both the backend and frontend will be running on this device.

I do not see any issues here.
I have been using an AMD E350-based PC (2x1.6 GHz) over a year for recording single DVB-T streams without issues. Even heavier load to the system (e.g. copying a lot of files, Audio or Video file encoding) caused any drop outs or artifacts inside the DVB-T stream.

Keep in mind that "recording" DVB streams only means writing a data stream to your HDD. DVB-T streams usually have a max bitrate of 10 MBit/s which translates to data rates below 1.5 MB/s.

If your HDD is fast enough to constantly write 3 MB/s (which even the slowest 2.5" HDD should be) then even writing two DVB-S2 streams would not cause problems for your box.

Thanks darksoul I think I might take plunge then and get a dual dvb-t usb stick.

You are welcome !
The questions to me would be though if to get a single dual or two single DVB-T sticks.
Linux ususally plays nicely with multiple identical devices.

Alt least compared to Windows

Gone with a single dual usb tuner, see people are having a lot of luck with this one K-world DVB-T 499U-2T USB Dual Digital Terestrial TV Tuner hopefully it will work fine.

Might be useful if you report back if it works fine.
The supported hardware part in the wiki is still very incomplete !