New features requests

Post information or questions regarding SDRplay products here
EDDS
Posts: 2
Joined: Tue Dec 08, 2015 9:25 pm

Re: New features requests

Postby EDDS » Wed Dec 16, 2015 8:25 pm

fix 400mhz weakness
Last edited by EDDS on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
Reason: No reason

g1hbe
Posts: 195
Joined: Sat Jan 17, 2015 3:28 pm
Location: Cheshire

Re: New features requests

Postby g1hbe » Thu Dec 17, 2015 9:22 am

I can't say I've noticed any particular weakness at 400 MHz. Mine shows a slight dip there (a few dB) but that may be my homebrew antenna diplexer. Of more concern is the oddness that starts around 255 MHz. I can't remember where it stops, but the RSP performs poorly in this area. It may be image response to the strong DAB transmissions. If it is there may be no cure apart from adding external filtering.
Last edited by g1hbe on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
Reason: No reason
Andy

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

Re: New features requests

Postby Tech_Support » Thu Dec 17, 2015 4:57 pm

Hello g1hbe,
I am afraid that you analysis is correct. Spurious signals at around 255 MHz are images of DAB signals. These occur as a result of the DAB signals mixing with harmonics of the block converter LO. The resultant IF then mixes with harmonics of the I/Q down-converter LO to generate on channel signals and hence spurious images. The only way to improve the situation is to improve the filtering of the DAB signals.

Sincerely

SDRplay Tech_Support
Last edited by Tech_Support on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
Reason: No reason

Sasan
Posts: 92
Joined: Sat Jun 27, 2015 1:15 am

Re: New features requests

Postby Sasan » Sun Dec 20, 2015 10:46 am

Dear Jon and SDRPlay Team
Have you considered releasing a SDRPlay V2 ?
Is it on your roadmap?
(I want to know whether we can expect a V2 in near future)
Last edited by Sasan on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
Reason: No reason

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

Re: New features requests

Postby Tech_Support » Sun Dec 20, 2015 10:49 am

Hello Sasan,
There will be a RSP2, but we are still in the process of undertaking technical feasibility and defining the feature-set. Unfortunately, we are unable to give a schedule at this point in time.

Sincerely

SDRplay Tech_Support
Last edited by Tech_Support on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
Reason: No reason


Return to “SDRplay related”

Who is online

Users browsing this forum: No registered users and 2 guests