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daul band

Posted: Mon Dec 26, 2016 11:18 pm
by guzzalee
hi all can i watch 20m and 17m i can seem to get it sorted if any one has some info and settings please :D

Re: daul band

Posted: Tue Dec 27, 2016 3:58 pm
by dsalomon
No. You can receive multiple signals, but they must be within the receiver bandwidth, about 10MHz. So, any frequency +/- about 5MHz from the center frequency can be tuned simultaneously.

The only SDR I'm aware of that allows multiple simultaneous receivers on different bands are the Flex radios. For example, the Flex-6500 can receive up to 4 bands simultaneously. However, it costs a bit more than the RSP. :-)

Re: daul band

Posted: Wed Dec 28, 2016 12:04 pm
by DK7OB

Simultaneous reception of 20m and 17m should basically work, since both bands are in the 5 MHz frequency range you get with 10 MHz sampling rate and LO set to 16 MHz.

I can not test with SDRUno since I am running Linux with gqrx. See attached screenshot.

Wolf, DK7OB

Re: daul band

Posted: Wed Dec 28, 2016 12:17 pm
by Tech_Support
It's actually 10 MHz sampling for both I and Q, which gives you 10 MHz of usable spectrum in ZIF mode. You will see a bit of aliasing at the spectral edges at the widest IF filter bandwidth (8 MHz) and so may see some false images at the edges of the display when using this mode.


SDRplay Tech_Support