Hi Steve

yep

It didnt take long to find, a few minutes , since, well it seems modems all have the same type of bugs... if you design modems long enough and I guess you can sniff with your nose the usual bugs !

I was just wondering if the usual code maintainers were going to take it on ?

Or I can fix it over the weekend. either way, I wasnt sure how things worked here...

cheers

glen




On 16/07/2020 9:17 pm, Steve wrote:
I think the theory is, you send a BPSK value (in this case 0:0 or BPSK 1.0 + 0.0j

Then on receive it should be the same value, or it is out of sync, or it is garbled by the ether.

The value is not really important, just that it be the same BPSK value, which the decodes to two indexes of the bits rx_uw of value 0:0

On Thu, Jul 16, 2020 at 3:25 AM Glen English <g...@cortexrf.com.au <mailto:g...@cortexrf.com.au>> wrote:

    anyone going to fix the FreeDV OFDM modem ?

    I'll located the bug, the line number etc......

    On 16/07/2020 08:31, glen english wrote:
    Excellent Alan !

    right, like I thought , tx_uw always zeros , and rx_uw goes to
    zero because input level falls.

    OK David, I am sure you had other ideas in mind for tx_uw ?

    that is it has been initialized to zero and never set..
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