
Log for Jan 11, 2010 (all times local (MT))
Steve Ellingson

Set up 8-dipole beamformer.
Combiner is Mini-Circuits Model ZFSC-8-4.
All dipoles are E-W.
Beam designed to point at meridian, zenith angle 36 degrees (theta=36deg, phi=-90deg)
  Optimized for 38 MHz
  Should be good for B0950+08 transit
Stand 187: ARX channel inop,            Delay=43.0 ns ** not used **
Stand 189: BalunBoard=1, Transformer=4, Delay=26.0 ns
Stand 191: BalunBoard=4, Transformer=1, Delay= 0.0 ns
Stand 210: BalunBoard=3, Transformer=3, Delay=19.0 ns
Stand 212: BalunBoard=4, Transformer=3, Delay=32.0 ns
Stand 214: BalunBoard=2, Transformer=3, Delay=13.0 ns
Stand 228: BalunBoard=4, Transformer=4, Delay=10.5 ns
Stand 230: BalunBoard=2, Transformer=4, Delay= 4.5 ns

Checked loss on cables between delay boxes and 8-way combiner.  All of them are about 0.1+/-0.05 dB.

k1: s60 channel 10 ("A") (35.00-38.50 MHz)
k2: s60 channel 9        (31.50-35.00 MHz)

At about 19:00 local, k1 is currently running 49 seconds ahead of k2. 
Both are on MT.

Overnight run:
using lwa_700k.sh (calls server_700k.py)
  Each call results in file of 700,000 packets, 140 s, 980 MB
  so 100 iterations is 3.89 h, 98 GB
Crab pulsar transits about 22:19 local, 14 degrees above beam center (HPBW is about 35 deg, so this is ~3dB point)
==> started run 21:00 local, should run until about 00:52 local 
==> folder: 100111a_k1, 100111a_k2
B0950+08    transits about 02:37 local, directly through beam center  
==> started run 02:00 local, should run until about 05:52 local 
==> folder: 100111b_k1, 100111b_k2

At about 10:00 local on Jan 12, k1 is currently running 55 seconds ahead of k2.

Checked spectra before and after these overnight runs; looked good. 

