[evlatests] P-band

[Paul Harden]

Rob Long wrote:
> Antennas 14, 17, and 21 have had additional attenuation added to the 74 
> MHz signal path to try and better balance 4 and P-band.
> 
> Rob

As a reminder,
Once this value of attenuation is agreed upon, it can be added to the
74MHz channel *internal* to the newly built 4/P Converters.  The 
provision for input attenuators on the printed circuit board is already 
there - just not being used.

Paul Harden