[evlatests] P-band checkup update

[Paul Harden]

On 7/18/2016 3:43 PM, Frank Schinzel wrote:
> 3) Previously unreported was that ea28X does not work very well, 
> showing larger than 1 dB bandpass ripples. All other band passes look 
> good. This could be a cable issue.

The last bandpass plot on EA28 does not show any unusual ripple, so will 
check it out locally asap, hopefully tomorrow.

> 4) Very large cross-polarizations are still seen on some antennas, as 
> previously reported by Rick.
> The worst from this observation are: ea06, ea27, ea17, ea15
> It would be great to look into the worst misaligned dipoles, of which 
> none have the new style P-band dipole mounting jam nut and to identify 
> the reason for the strong bandpass ripples on ea28X.

Wednesday is maintenance day at the site.  Pending possible microwave 
receiver swaps impacting transportation and resources, Sandra and myself 
will make a strong attempt to visit the above antennas to inspect the 
P-band dipoles for degree of misalignment, and will schedule to try and 
get them realigned in the next week or so.  We'll check out EA28 also.

Paul