From sklar at unavco.org Tue Jan 25 03:11:21 2022 From: sklar at unavco.org (Jacob Sklar) Date: Mon, 24 Jan 2022 20:11:21 -0700 Subject: [IGSSTATION-8387] HRAO receiver change announcement Message-ID: <6B703DD2-667E-4EA3-9126-E6AE94CD9835@unavco.org> Dear IGS Community, The receiver at station HRAO was changed from a Javad TRE_G3TH Delta to a Septentrio PolaRx5TR. Data are available beginning 2021-11-10. Background: Tracking issues were experienced prior to and after switching receivers from the Javad to the Septentrio. The antenna was temporarily removed for inspection and testing but no issues were found. The problem was isolated to the antenna cable. A breach in the jacket and shielding was found mid-span and there was water ingress within the connector at the antenna which resulted in heavy corrosion. The entire cable was replaced with Huber Schuner Sucofeed 3/8 HF FR cable. This resolved the tracking issue. The original antenna remains. For additional details, please refer to the HRAO site log hrao00zaf_20220119.log. Best regards, Jacob _____________________________________________________________________ Jacob R. Sklar Engineer III NASA Global Geodetic Network ????????????????????????????????????????????????????????????????????? Unavco, Inc. 6350 Nautilus Drive Boulder, Colorado 80301 http://www.unavco.org 303-941-8386 C sklar at unavco.org 303-381-7464 O 303-381-7501 F ????????????????????????????????????????????????????????????????????? -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 4374 bytes