Can not get any value from an US-D1 Radar Altimeter

[Cristian-wp]

Hello,
I am trying to use your package on ros Melodic with a US-D1 Radar Altimeter.
I have follow your guide but I can not read any output. I have try to rostopic echo the topic but nothing, even the hz are not avaiable.
I have source the enviroment in both the terminal, but nothing change. I have also try to see some data from PuTTY and I can read some undefined value so there is an actual connection.
I have set in the launch file :

Can you please help me to solve this problem?

[DoneMan]

did you manage to get this to work with the US-D1? I have the same probblem