<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Dear Colleagues,<div class=""><br class=""></div><div class="">Geo++ has discovered a problem with the SEPCHOKE_B3E6 ARP definition. They have received samples of this antenna model where the 5/8” thread is not flush with the antenna pre-amplifier. Therefore it has been decided to change the ARP definition in the IGS from BAM to BPA and add a hint on the antenna diagram of a possible none-flush thread. </div><div class=""><br class=""></div><div class="">In addition to that change we have also added the following entries:</div><div class=""><br class=""></div><div class="">| 16 SEP 2020 Added TPS GB-500, TRIMBLE R12I, TRMR12I, TIASAHI PENG6J2, |<br class="">| TIAPENG6J2 |</div><div class=""><br class=""></div><div class=""> <br class=""><a href="https://files.igscb.org/pub/station/general/rcvr_ant.tab" class="">https://files.igscb.org/pub/station/general/rcvr_ant.tab</a><br class=""><a href="ftp://igs.org/pub/station/general/rcvr_ant.tab" class="">ftp://igs.org/pub/station/general/rcvr_ant.tab</a></div><div class=""><br class=""></div><div class=""><a href="https://files.igscb.org/pub/station/general/antenna.gra" class="">https://files.igscb.org/pub/station/general/antenna.gra</a></div><div class=""><a href="ftp://igs.org/pub/station/general/antenna.gra" class="">ftp://igs.org/pub/station/general/antenna.gra</a></div><div class=""><br class=""><br class="">Best Regards,<br class="">David Maggert<br class="">Network Coordinator<br class="">IGS Central Bureau</div></body></html>