Re: [Discuss-gnuradio] 3 out of 4 channels not working?

[Eric Blossom]

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