Search found 27 matches

by n2ic
Sun Mar 25, 2018 1:30 pm
Forum: Code Corner
Topic: Resampling
Replies: 20
Views: 16213

Re: Resampling

Hi Steve, I noticed the reversed StreamInit/Decimate function calls, but thought it might actually be correct. Once you call StreamInit, it's off to the races - the API immediately starts sending samples, probably with decimation = 1. Can you really change the decimation at this point ? This is anot...
by n2ic
Sat Mar 24, 2018 3:02 pm
Forum: Code Corner
Topic: Resampling
Replies: 20
Views: 16213

Re: Resampling

Hi Steve, Thanks for the code - that is a huge help. A few questions/comments for you and/or the SDRPlay team: - When in the LowIF mode, why can't the decimation be user specified ? The man page says: "Also for IQ output in Low IF mode, enable must = 0 as the decimation is automatic within the API."...
by n2ic
Fri Mar 23, 2018 8:26 pm
Forum: Code Corner
Topic: Resampling
Replies: 20
Views: 16213

Resampling

I have an application that needs I/Q data at 192 kHz. The lowest that the RSP's go is 500 kHz. I don't need any FFT or demodulation - I just need 192 kHz I/Q. Resampling ? Suggestions on how to do this in software ?

Thanks,
Steve
by n2ic
Sun Mar 18, 2018 12:21 am
Forum: Code Corner
Topic: Question for Heinrich, DanubeBCL
Replies: 1
Views: 3334

Question for Heinrich, DanubeBCL

Sorry to waste the bandwidth here, but I haven't found another way to contact DanubeBCL. I am working on a bridge between HDSDR and CW Skimmer. Specifically, I would like a change in the HDSDR LO frequency to cause a change in the CW Skimmer LO frequency. Will one of the existing HDSDR DDE mechanism...
by n2ic
Wed Dec 20, 2017 11:57 pm
Forum: Code Corner
Topic: Code examples .Net and C#?
Replies: 11
Views: 17080

Re: Code examples .Net and C#?

"I've just uploaded a zip file to the Playground (SdrScan.zip)"

Can someone point me to the "Playground" ?

Thanks
by n2ic
Mon Jul 31, 2017 4:34 pm
Forum: SDRplay related
Topic: Problem with current RSP1 ExtIO and API
Replies: 1
Views: 2652

Problem with current RSP1 ExtIO and API

I am the software developer for a popular ham radio program called Waterfall Bandmap. I recently installed the current RSP1 ExtIO and API on Windows 7. I am seeing a problem if I initially select the RSP1 ExtIO (but don't call StartHW), then select a different (non-RSP) ExtIO, then reselect the RSP1...
by n2ic
Sun Jan 22, 2017 9:02 pm
Forum: SDRplay related
Topic: RSP2 front-end protection?
Replies: 7
Views: 8285

Re: RSP2 front-end protection?

Ian,

I run a full 100 watts from the 590SG to the amp. Soft tubes in the amp !

73,
Steve
by n2ic
Fri Jan 20, 2017 3:37 pm
Forum: SDRplay related
Topic: RSP2 front-end protection?
Replies: 7
Views: 8285

Re: RSP2 front-end protection?

Hi Ian,

I'm sure you know that the TS-590SG has an RX-output (shared with the low power DRV output). I have been using the RSP1 since June with the TS-590SG RX-output. I run 1500 watts, with monobanders, high duty-cycle, in contests. No problems with the RSP1.

Steve
by n2ic
Sat Jan 07, 2017 3:22 pm
Forum: General
Topic: HDSDR 2.75 is final now
Replies: 5
Views: 4656

Re: HDSDR 2.75 is final now

Let's hope we don't have to wait another 3+ years for the next release.

Looking forward to the open source that was promised for HDSDR.

Steve
by n2ic
Wed Jan 04, 2017 10:25 pm
Forum: SDRplay related
Topic: New ExtIO for RSP1
Replies: 5
Views: 5637

Re: New ExtIO for RSP1

The EXTIO plugins search for available devices and use the first one available. That seems a little non-deterministic when you have multiple RSP's, since "first" depends on which one is first seen by the OS on the USB bus when booting the computer. I would like to see an extension the ExtIO to be m...