daul band

Discussions about everything to do with SDRuno
guzzalee
Posts: 2
Joined: Wed Dec 21, 2016 11:39 pm

daul band

Postby guzzalee » Mon Dec 26, 2016 11:18 pm

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
Last edited by guzzalee on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
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dsalomon
Posts: 51
Joined: Sat Oct 10, 2015 1:50 pm

Re: daul band

Postby dsalomon » Tue Dec 27, 2016 3:58 pm

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. :-)

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DK7OB
Posts: 47
Joined: Thu Mar 24, 2016 7:14 am

Re: daul band

Postby DK7OB » Wed Dec 28, 2016 12:04 pm

Hi,

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.

Regards,
Wolf, DK7OB
Attachments
20m17m.png
20m17m.png (240.38 KiB) Viewed 908 times

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Tech_Support
Posts: 196
Joined: Mon Jun 01, 2015 7:00 pm

Re: daul band

Postby Tech_Support » Wed Dec 28, 2016 12:17 pm

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.

Sincerely

SDRplay Tech_Support

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