Message-ID: <48B806FD.4010803@aiub.unibe.ch> Date: Fri, 29 Aug 2008 16:26:05 +0200 From: Stefan Schaer User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) To: igsmail Subject: [IGSMAIL-5823]: GLONASS negative frequency channels (2) Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 29 Aug 07:26:18 PDT 2008 Message Number 5823 ****************************************************************************** Author: Stefan Schaer Dear IGS colleagues, A survey of CODE's RINEX database shows that still 20 of 105 GLONASS tracking stations are unable to sample GLONASS zero and negative frequency channels (5 GLONASS, namely R09, R11, R13, R15, R17): azco: R11 R15 TPS LEGACY 3.2 DEC,20,2007 bako: R11 R15 LEICA GRX1200GGPRO 5.00/3.013 cagz: TPS E_GGD 3.1 MAR,13,2007 P2 crar: TPS ODYSSEY_E 2.5 JUN,22,2005 P1 mal2: R11 R15 JPS LEGACY 3.2 mat1: ASHTECH Z18 0065 metz: JPS EUROCARD 2.3 NOV,12,2002 mobj: TPS LEGACY 2.3 APR,28,2004 P4 mtbg: R11 R15 TPS GB-1000 mtka: ASHTECH Z18 0065 ZT16 park: JPS E_GGD 2.5 pfa2: TPS E_GGD 3.1 JUN,28,2007 P3 pous: TPS GB-1000 2.5 APR,07,2005 P1B1 snec: TPS GB-1000 2.5 JUN,22,2005 P1 sunm: JPS LEGACY JPS_4 / 2.3 NOV,12, sydn: JPS E_GGD 2.3P3 tixj: TPS ODYSSEY_E 2.5 JUN,22,2005 P1 unpg: TPS ODYSSEY_E 3.1 JUN,28,2007 P3 ven1: ASHTECH Z18 0065 ZT16 vesl: R13 TPS GB-1000 3.1 JUN,28,2007 P3 An updated list of affected GNSS stations may be found at: ftp://ftp.unibe.ch/aiub/igsdata/tracking_glo_neg_freq_not_ready.txt We pointed to this tracking deficiency already in several IGS Mails (5650, 5668, 5695): http://igscb.jpl.nasa.gov/mail/igsmail/2007/msg00130.html http://igscb.jpl.nasa.gov/mail/igsmail/2007/msg00148.html http://igscb.jpl.nasa.gov/mail/igsmail/2008/msg00017.html We ask the station operators responsible for the stations listed above to upgrade the receiver firmware asap. From the list ftp://ftp.unibe.ch/aiub/igsdata/tracking_glo_neg_freq.txt we may conclude that the most recent GNSS receiver firmware versions are: 2.6.1, 2.7.0 for JPS 6.00 for LEICA GRX1200GGPRO 3.30 (?) for NOV 3.3 for TPS 3.64 for TRIMBLE NETR5 It is worth mentioning that the following stations do not provide GLONASS observations although they are equipped with GPS/GLONASS receiver models: cnmr: TRIMBLE NETR5 NP 3.50 / SP 0.00 gope: ASHTECH Z18 0065 guug: TRIMBLE NETR5 NP 3.50 / SP 0.00 mat1: ASHTECH Z18 0065 ntz1: TPS NETG3 3.2 DEC,12,2007 Best regards, The CODE AC Team