Quisk in Ubuntu controlling Softrock Ensemble II but nothing in Waterfall/Graph
- I have been searching for an answer to my problem but have not had much luck. So I am posting here. Sorry if this may be a repeat somewhere else that I have not located.
I was successful in installing Quisk 3.6.3 in Ubuntu 11.04. Everything appears to be working with one exception. I don't see any signals in the Waterfall or in the Graph windows. Oddly, Quisk is controlling the Softrock Ensemble II. I confirmed this by taking the audio output (I/Q) from the softrock and connected the cable to the Audio Input on my Windows 7 machine running HDSDR. I see waterfall information with HDSDR in Win7 and I am able to listen to numerous signals around the set frequency I set in Quisk. So Quisk is controlling the Softrock just fine, just no signal. What am I doing wrong??
I created the .quisk_conf.py file using the 'conf_rx_ensemble2.py' file as shown:
# This is a sample quisk_conf.py configuration file for a SoftRock Rx Ensemble II.
# Please do not change this sample file.
# Instead copy it to your own .quisk_conf.py and make changes there.
# See quisk_conf_defaults.py for more information.
from softrock import hardware_usb as quisk_hardware
# In ALSA, soundcards have these names. The "hw" devices are the raw
# hardware devices, and should be used for soundcard capture.
#name_of_sound_capt = "hw:0"
#name_of_sound_capt = "hw:1"
#name_of_sound_capt = "plughw"
#name_of_sound_capt = "plughw:1"
#name_of_sound_capt = "default"
# Vendor and product ID's for the SoftRock
usb_vendor_id = 0x16c0
usb_product_id = 0x05dc
softrock_model = "RxEnsemble2"
# ADC hardware sample rate in Hertz
sample_rate = 48000
# Name of soundcard capture hardware device.
name_of_sound_capt = "hw:0"
# Use the same device for play back
name_of_sound_play = name_of_sound_capt
I could really use the help to solve this. I am writing a "newbie" document for those that want to run a Softrock Ensemble II on Ubuntu as part of my learning and to help others get started.
- Not surprisingly, that's why I was recommending a 12V battery test as ground loops are difficult to avoid when multiple grounds form a PC, PS, etc. are present.
73 ... Sid.
On 09/08/12 14:16, John Tucker wrote:
Mike,I put a 12V, 1A wall wart power supply on the softrock and the Harmonics decreased drastically. So that seemed to be a big help.Thanks.JohnN8MDPIf you disconnect the antenna ... do the "harmonics" go away?
If not, its USB noise and the soundcard needs better filtering of its regulators .... or you have a ground loop.
Date: Wed, 8 Aug 2012 02:15:15 +0000
Subject: [softrock40] Re: Chnd:ghosdr3-Alex in Ubuntu controlling Softrock Ensemble II
I put a choke on the 12V input line. Didn't make much of a difference. The harmonics are still there. For now, I will make the LO offset 12000 vs. 9000. At least you can listen without the annoying tone.
By the way, are you hearing audio from my SDR? One of my buddies down the road has a son that just got their license and is a Linux guru. He installed QtRadio and he is not getting any audio from my stream. Just wanted to confirm if you were hearing anything from my radio.
Looks like I got the Softrock calibrated properly. The system appears to be working as I had hoped. Now I need to move on to getting the tablets running to my expectation and then get jmonitor working on my website.
More work in progress!!
--- In mailto:softrock40%40yahoogroups.com, Sid Boyce <sboyce@...> wrote:
> As it's a RX you could try a 12V battery which would isolate it from any
> induced noise from the PS or ground.
> 73 ... Sid.
> On 07/08/12 22:52, n8mdp wrote:
> > I shifted the LO offset to 12000. That moves the receive area both for
> > LSB and USB away from the harmonic noise for now. Nice clean audio.
> > Will still check the power supply.
> > --- In mailto:softrock40%40yahoogroups.com
> > <mailto:softrock40%40yahoogroups.com>, "n8mdp" <ars_n8mdp@> wrote:
> > >
> > > That can be checked relatively quickly. I never thought about that.
> > I am using a combo 5V/12V power supply. I can try my 13.8V supply for
> > my Kenwood to see if that makes a difference.
> > >
> > > Radio is back on the net. I have to re-calibrate the radio as I
> > can't pick up the local AM radio stations and the SDR seems to be off
> > by 4.8Khz on the low side.
> > >
> > > Work in Progress!!!!
> > >
> > > John
> > >
> > > --- In mailto:softrock40%40yahoogroups.com
> > <mailto:softrock40%40yahoogroups.com>, David Turnbull <dturnbull@> wrote:
> > > >
> > > > On Tue, Aug 7, 2012 at 1:57 PM, n8mdp <ars_n8mdp@> wrote:
> > > > > I did that. It is very clear to me that the solid line and tone
> > I see and hear are harmonics at +/- 9kHz of the local oscillator Freq.
> > > >
> > > > That could be from a switching power supply.
> > > >
> > > > 73 David AE9RB
> > > > http://AE9RB.com/
> > > >
> > >
-- Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Senior Staff Specialist, Cricket Coach Microsoft Windows Free Zone - Linux used for all Computing Tasks