69170Re: Ensemble RXTX 07_RX Opamps and Output RX Promblem
- Oct 5, 2012Hi again Taka,
Sorry, I have been busy with work and didn't had time to check e-mail.
First, I have tried two PC's one with win 7 and the other with winXP, same result, (software used, WinRadHD, PSDR, Rocky)
I'm using a mouse on usb Verbatim model 49014
Current draw with 10ohm resistor connected in line of +12volt
Without USB connected = 18.59mA
With USB connected = 24.09
I have finished the build and it does TRX but when the problem persist even the transmitted RF (audio) sound like it when it receive.
I will make a recording when I can find some English speaking Guy's and then I will post it here too.
I hope that this info is sufficient.
--- In firstname.lastname@example.org, "Taka Sugi" <taka_sugi1206@...> wrote:
> Hi Jaco
> I understood you did'nt mount board in a metal case.
> So the problem is not board-case.
> > I do use Win7 and have found that it gives me a lot of times
> >the unknown device problem even after I have load the certificate
> >for the driver.
> This is very strange! Please install USB-driver again and confirm
> the driver is installed and working correctly.
> > The funny thing is that every time it happens I disconnect every
> >thing and take the soldering iron and just touch every soldering
> >poit on all the IC's and re-connect it to the pc, then it works
> >again for a while, Not sure if something gets hot and stop working
> Please make sure,
> 1.*** Are you using USB by other applications at the same time? ***
> 2. Current draw of RXTX by measuring the voltage of resister
> (10ohm) which is inserted between +12V power supply and RXTX.
> I also recommend to confirm by using another PC/soundcard if you have,
> and try to another SDR software: PowerSDR,Rocky.
> DE JA1TLH/Taka
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