RF dongle frequency

Hi,
Which frequency band does the dongle use?
I’m getting some mild interference on my HW700DS and trying to trace the origin.

For TX pseudorandom hop sequence :
2404, 2418, 2415, 2466, 2421, 2444, 2424, 2430, 2435, 2439, 2475, 2450, 2455, 2458, 2469, 2473

For RX pseudorandom hop sequence :
2404, 2418, 2415, 2466, 2421, 2444, 2424, 2430, 2435, 2439, 2475, 2450, 2455, 2458, 2469, 2473

OK, that explains it.
Thank you for the information.