I just received a BG7TBL GPSDO from eBay, "US seller". faceplate date is 2019-08-03, but the back side of the faceplate says 2018-06-05,
and the main board has a date 2019-01-07. this is not a LCD version
OCXO is CTS 196-0017 with a mfg date or 2008 week 8. no info on GPS chip,
but on startup is spits out this, so it seems to be a ublox UBX-M8030 fw 3.01
$GPTXT,01,01,02,u-blox AG -
www.u-blox.com*50
$GPTXT,01,01,02,HW UBX-M8030 00080000*7E
$GPTXT,01,01,02,ROM CORE 3.01 (107888)*35
$GPTXT,01,01,02,FWVER=SPG 3.01*58
$GPTXT,01,01,02,PROTVER=18.00*0F
$GPTXT,01,01,02,GPS;GLO;GAL;BDS*69
$GPTXT,01,01,02,SBAS;IMES;QZSS*57
$GPTXT,01,01,02,GNSS OTP=GPS;GLO*29
$GPTXT,01,01,02,LLC=FFFFFFFF-FFFFFFFF-FFFFFFFF-FFFFFFFF-FFFFFFFD*31
$GPTXT,01,01,02,ANTSUPERV=AC SD PDoS SR*20
$GPTXT,01,01,02,ANTSTATUS=DONTKNOW*33
$GPTXT,01,01,02,PF=3FF*55