Search found 17 matches

by Paul314
Sun Jul 29, 2018 2:55 pm
Forum: SDRplay related
Topic: Beta testing: SDRduo coherent sampling & code testing.
Replies: 1
Views: 1937

Re: Beta testing: SDRduo coherent sampling & code testing.

My application relies on phase coherence between tuners and I'm waiting for v3.0. I have a duo and I'm in the process of coding with v2.13. Is it possible to be a beta tester?
by Paul314
Fri Feb 16, 2018 6:58 pm
Forum: Code Corner
Topic: CubicSDR 0.2.3 released. How about updating links???
Replies: 12
Views: 9264

Re: CubicSDR 0.2.3 released. How about updating links???

What ever. I'm happy just going away.
by Paul314
Tue Feb 13, 2018 5:38 pm
Forum: Code Corner
Topic: CubicSDR 0.2.3 released. How about updating links???
Replies: 12
Views: 9264

Re: CubicSDR 0.2.3 released. How about updating links???

You do know that a git repository gives you access to the latest version?
by Paul314
Tue Jan 30, 2018 3:30 pm
Forum: Code Corner
Topic: LNAstate and setGrMode in mir_sdr_StreamInit()
Replies: 5
Views: 4106

Re: LNAstate and setGrMode in mir_sdr_StreamInit()

I second the request to publish the answer given to the OP. It's most frustrating when engaging a question to have it vanish down a private conversation.
by Paul314
Thu Dec 14, 2017 5:05 pm
Forum: Code Corner
Topic: Using two rsp2pro simultaneously.
Replies: 6
Views: 4508

Re: Using two rsp2pro simultaneously.

In the limit someone might care, it seems it's not possible using the common clock input on the RSP2 to phase lock two radios. Internally the MSI001 tuner uses a Fractional-N synthesizer (or FLL) and not a PLL like I had assumed. Only the average frequency is maintained between the radios and not th...
by Paul314
Sun Dec 10, 2017 2:43 am
Forum: Code Corner
Topic: sampling rate
Replies: 1
Views: 2403

Re: sampling rate

Not certain what the issue is but doesn't a sampling rate twice that required only imply that you're over sampling? Why is this a bad thing?
by Paul314
Thu Dec 07, 2017 7:38 pm
Forum: New Users' experiences
Topic: Using an external clock with the RSPIIpro
Replies: 2
Views: 2878

Re: Using an external clock with the RSPIIpro

Okay, had a very helpful interaction with tech support and I should post a data dump here. The main source of my confusion was due to my external clock decided to put out 20MHz rather than the required 24MHz while I wasn't looking. The symptom using an external clock too far from 24MHz is the radio ...
by Paul314
Wed Dec 06, 2017 4:34 pm
Forum: New Users' experiences
Topic: Using an external clock with the RSPIIpro
Replies: 2
Views: 2878

Using an external clock with the RSPIIpro

Using an Hp3325B function generator set to 24Mhz sine wave @ 1.5 volts peak to peak and the coupling circuit consisting of a 10nF capacitor with the radio side connected to ground through a 1.18k resistor[1] I get the following behavior. The external clock-in line is connected first. I then plug the...
by Paul314
Wed Dec 06, 2017 2:20 pm
Forum: Code Corner
Topic: Using two rsp2pro simultaneously.
Replies: 6
Views: 4508

Re: Using two rsp2pro simultaneously.

Okay, I plug the master radio into the USB and run a program which starts and configures the master with the external clock out enabled. This results in the clock signal appearing (using an oscilloscope) on the out MCX jack on the back of the master as was advertised in the literature. The configure...
by Paul314
Sun Dec 03, 2017 11:54 pm
Forum: Code Corner
Topic: Using two rsp2pro simultaneously.
Replies: 6
Views: 4508

Re: Using two rsp2pro simultaneously.

The libusb_open failure is special to my Mac and USB3 hub. This problem doesn't occur on my linux machine using a USB2 hub. I've implemented option 2) of the original post and, of course, it fails with a "hardware problem" error when more than one radio is used :roll:. Option 1) is stupid ...

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