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Re: [Discuss-gnuradio] 3 out of 4 channels not working?
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] 3 out of 4 channels not working? |
Date: |
Sat, 18 Oct 2003 14:01:37 -0700 |
User-agent: |
Mutt/1.4i |
On Sat, Oct 18, 2003 at 04:30:51PM -0400, Ben Gelb wrote:
> I received my Measurement Computing board yesterday. I've taken it out
> of the box and installed it and it seems that channels 0, 1, and 3 do
> not function.
>
> When in high impedance mode, they always measure +5V and in 50 ohm mode
> they measure 0V (I determined this by running the InstaCal software).
> It's almost as if the ADC is working but the BNC connectors aren't
> physically connected to the board. Very weird. I'm putting in a support
> request to MCC, but I wanted to know if anyone on the list perhaps knows
> something simple I'm missing.
>
> Channel 2 on the other hand produced a very nice plot when I ran
> adc3_fftavg and connected my G5RV antenna to it. Very cool!
>
> -Ben
Sorry, I haven't seen anything like this.
Does the board calibrate OK under windows?
Does the board pass the test code in the windows software?
Eric