<html><body bgcolor="#FFFFFF"><div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); "><div>Bob,</div><div><br></div><div>Yesterday, you asked me for help in figuring out this matter, which I have been working on. By raising it on this forum, you have apparently sought additional help from a wider group of experts within the observatory. In the interest of maintaining a fact-based approach, please provide the actual data to this forum so that we may all help you. Excel or csv files will be fine.</div><div><br></div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><span>Regards,</span></span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><br></span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><span></span></span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><br></span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><span></span></span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><br></span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><span>Dr. Gordon M. Coutts, PhD</span></span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><br></span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><span>Associate Scientist, Research Engineer</span></span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><br></span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "><span>National Radio Astronomy Observatory</span></span></span><br><br>On Sep 7, 2011, at 2:17 AM, "Robert Hayward" <<a href="mailto:rhayward@aoc.nrao.edu">rhayward@aoc.nrao.edu</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><span>Gordon,</span><br><span></span><br><span>The earlier test that you and Chuck seem to be fixated on was a bit more</span><br><span>of a jury rig measurement than I would have normally liked because I had</span><br><span>to kludge together a thermal gap assembly. Had I a full set of replacement</span><br><span>parts like we have now, the results would likely have been different. You</span><br><span>ask what my change in methodology was. It is really rather obvious - I</span><br><span>finally have a full set of interchangeable parts from two polarizers - one</span><br><span>that is good, and another that is less so.</span><br><span></span><br><span>The rotary flange does seem to be a generating a lot of iron filings these</span><br><span>days, but they occur on the outside of the big flange and not on the</span><br><span>window. When the big flange is removed, however, you have to be careful</span><br><span>that the iron fillings don't migrate inwards along the top plate to the</span><br><span>window.</span><br><span></span><br><span>You can be assured that there were no metal residue on the window during</span><br><span>my tests on Friday as I had been conscious of this problem over the last</span><br><span>few weeks in the dozens of pseudo axial radio tests I carried out on our</span><br><span>44 new hybrids. Any fragments you saw more than likely came about after I</span><br><span>removed the rotary flange so I could access the screws on the top plate to</span><br><span>release the OMT. You may borrow my can of compressed air if you want.</span><br><span></span><br><span>In any case, I would suggest even if there had been a few metal fragments</span><br><span>(although there weren't) on the window, it would have been inconsequential</span><br><span>in the direct comparison tests of the OMTs since neither the window nor</span><br><span>the rotary flange were disturbed or altered between swapping the OMTs (ie:</span><br><span>the VLBA OMT was removed in situ from the bottom of the thermal gap</span><br><span>assembly and then the Arecibo OMT was screwed directly in its place).</span><br><span></span><br><span>You will note that I purposely never said anything negative in the</span><br><span>evlatests message about the C-Band OMTs. All I said was that they "may not</span><br><span>be created equal". I stand by that statement. If you take offense to that,</span><br><span>or are not prepared to believe what I've been trying to tell you about my</span><br><span>recent series of tests, feel free to do your own set of axial ratio</span><br><span>measurements on the two polarizers yourself and then simply swap the OMTs.</span><br><span></span><br><span>I thought I had already adequately explained what my "pseudo axial ratio"</span><br><span>measurement technique was when we chatted earlier this morning. I'll give</span><br><span>it another try later today if you like.</span><br><span></span><br><span>As for my test data, I showed the more relevant sections to you this</span><br><span>morning. If I went thru it too quickly, or explained it in a confused</span><br><span>fashion, you might have spoken up. You now seem to be accusing me of</span><br><span>something inappropriate. All my tests, as described briefly in my last</span><br><span>email, lead me to the inescapable conclusion that the discrepancy in the</span><br><span>axial ratio performance is due to the OMT, and not the thermal gap</span><br><span>assembly or the hybrid or the phase-trimmed cables. If you disagree, you</span><br><span>will need to show me some axial ratio tests that prove quite the opposite</span><br><span>of what I feel my set of tests definitely indicated.</span><br><span></span><br><span>By the way, because of the visit by Obama's NSF fiscal adviser on</span><br><span>Thursday, I will need to reassemble both the VLBA and Arecibo receivers</span><br><span>for Steve Durand's "Dog & Pony" show in the afternoon. I'll probably need</span><br><span>to start getting things ready on Thursday morning. We can disassemble it</span><br><span>all again afterward if you need it to do more tests.</span><br><span></span><br><span>-Bob</span><br><span></span><br><span></span><br><blockquote type="cite"><span>Bob,</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>A few weeks ago, you indicated that after swapping various components, you</span><br></blockquote><blockquote type="cite"><span>had found that the OMT was not the cause of aforementioned axial ratio</span><br></blockquote><blockquote type="cite"><span>variations. I spoke with Chuck earlier today, and his recollection was</span><br></blockquote><blockquote type="cite"><span>similar. What has changed in your methodology?</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>Upon inspection of the test stand, I found metal fragments on the window.</span><br></blockquote><blockquote type="cite"><span>This is possibly a contributing factor, and it would behoove you to</span><br></blockquote><blockquote type="cite"><span>reexamine your results with a clean test stand.</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>As you have chosen this venue to raise this subject, it would be</span><br></blockquote><blockquote type="cite"><span>beneficial for you to share the actual data. Also, please clarify what you</span><br></blockquote><blockquote type="cite"><span>mean by "pseudo"?</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>Regards,</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>Dr. Gordon M. Coutts, PhD</span><br></blockquote><blockquote type="cite"><span>Associate Scientist, Research Engineer</span><br></blockquote><blockquote type="cite"><span>National Radio Astronomy Observatory</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>On Sep 6, 2011, at 9:23 PM, "Robert Hayward" <<a href="mailto:rhayward@aoc.nrao.edu">rhayward@aoc.nrao.edu</a>></span><br></blockquote><blockquote type="cite"><span>wrote:</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><blockquote type="cite"><span>Gordon,</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>I thought I did exactly that this morning when I showed you the "pseudo"</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>axial ratio plots that I had measured on the ellipticity test stand on</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>Friday which compared the good polarizer from the Arecibo receiver and</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>the</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>poor polarizer from the 4th VLBA receiver. I then started mixing and</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>matching components from the two to find out what was needed to make the</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>VLBA polarizer better.</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>The polarizer from the 4th VLBA receiver (i.e., the T-gap + OMT +</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>phase-trimmed cables + hybrid) was always poor unless I swapped in the</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>OMT</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>(and only the OMT) from the Arecibo polarizer. With this OMT, it looked</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>equally fine no matter which hybrid I used. This tells me that it is the</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>OMT out of the VLBA receiver that is different from the Arecibo OMT (and</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>thus "not created equal").</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>On top of that, I have tested all of the hybrids remaining from our 46</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>units - 3 of them in the 2nd VLBA receiver, 20 of them in the 3rd VLBA</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>receiver and the last 21 in the Arecibo receiver. I have found no</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>anomalous hybrids.</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>I also played with introducing gaps in the RF tree to see if I could</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>make</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>the good axial ratio in the Arecibo receiver worse. This includes</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>forcing</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>unrealistically large gaps between the Top Plate and the T-Gap assembly,</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>and between the T-Gap and the OMT, plus making the gap in the T-Gap</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>assembly too big. None of this changed the crossover points seen on the</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>axial ratio.</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>Since we've not had any spare OMTs to play with, the first real chance</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>I've had to do a proper good vs. bad set of mix & match measurements was</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>when I reluctantly tore the Arecibo receiver apart to do this test.</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>I honestly don't know what exactly is different with the OMT out of the</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>4th receiver, I only know that it is different than the OMT that was in</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>the 1st VLBA receiver and the one from the Arecibo receiver. The OMTs in</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>the 2nd, 3rd and 4th VLBA receivers are unfortunately less good in a</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>circular polarizer.</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>I'm hoping you can tell us exactly what is different and hopefully what</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>we</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>need to do to make them all perform identically good.</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>-Bob</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Bob,</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Please substantiate claim (4) with data.</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Regards,</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Dr. Gordon M. Coutts, PhD</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Associate Scientist, Research Engineer</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>National Radio Astronomy Observatory</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>On Sep 6, 2011, at 4:32 PM, Bob Hayward <<a href="mailto:rhayward@nrao.edu">rhayward@nrao.edu</a>> wrote:</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Chuck Kutz wrote:</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>The Ku receiver is waiting on Hayward for test.</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>And Hayward has been...</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>1) testing & debugging the first L-Band Solar Receiver, slated to be</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>installed on Ant 24 in less than 2 weeks.</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>2) testing & debugging the latest upgraded VLBA C-Band receiver,</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>slated</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>to be shipped to Brewster on Sept 19th.</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>3) testing & debugging the new improved EVLA-style C-Band receiver,</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>which has a new thermal gap assembly from the VLBA installed in it</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>(that</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>will knock about 5K off the T(rx) at the low-end) and which needs to</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>be ready by Sept 19th when we have a couple of engineers visiting from</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Arecibo who want to look at the receiver (and hopefully buy one).</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>4) sorting out annoying axial ratio problems in the C-Band polarizers</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>(it seems all OMTs may not be created equal).</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>5) preparing for Thursday's "Dog & Pony" show.</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>6) and writing stupid memos like this.</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>I'll try to fit the Ku-Band S/N 15 receiver testing in when I can find</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>the time over the next few days - unless someone wants any or all of</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>the</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>above dates to slip.</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>-Bob</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>-----Original Message-----</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>From: <a href="mailto:evlatests-bounces@nrao.edu">evlatests-bounces@nrao.edu</a> [mailto:evlatests-bounces@nrao.edu]</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>On</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Behalf Of Ken Sowinski</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Sent: Tuesday, September 06, 2011 3:18 PM</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>To: Ken Sowinski</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Cc: <a href="mailto:evlatests@aoc.nrao.edu"><a href="mailto:evlatests@aoc.nrao.edu">evlatests@aoc.nrao.edu</a></a></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Subject: Re: [evlatests] ea23 returns, slowly</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>On Tue, 6 Sep 2011, Ken Sowinski wrote:</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>X and L band receivers are not yet installed</span><br></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>S band works</span><br></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>C band works, but the polarizations are backwards</span><br></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>C band cables have been reversed; pointing will be done tonight.</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Ku band rotation setting is unknown</span><br></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>A rotation setting has been provided, but there seems to</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>be no receiver. the downconverters show no power at Ku band.</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>K band works, but is very weak, probably because of poor pointing</span><br></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Ka and Q bands not examined</span><br></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>If C band cables are swapped today we can do pointing tonight.</span><br></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>_______________________________________________</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>evlatests mailing list</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span><a href="mailto:evlatests@listmgr.cv.nrao.edu">evlatests@listmgr.cv.nrao.edu</a></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span><a href="http://listmgr.cv.nrao.edu/mailman/listinfo/evlatests">http://listmgr.cv.nrao.edu/mailman/listinfo/evlatests</a></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>_______________________________________________</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>evlatests mailing list</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span><a href="mailto:evlatests@listmgr.cv.nrao.edu">evlatests@listmgr.cv.nrao.edu</a></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span><a href="http://listmgr.cv.nrao.edu/mailman/listinfo/evlatests">http://listmgr.cv.nrao.edu/mailman/listinfo/evlatests</a></span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>_______________________________________________</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>evlatests mailing list</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span><a href="mailto:evlatests@listmgr.cv.nrao.edu">evlatests@listmgr.cv.nrao.edu</a></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span><a href="http://listmgr.cv.nrao.edu/mailman/listinfo/evlatests">http://listmgr.cv.nrao.edu/mailman/listinfo/evlatests</a></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><span></span><br></div></blockquote></body></html>