David,
On the LVB PC board, beside the serial port, is a socket which will take a USB chip complete with connector. You remove the serial port chip, and install the USB chip.
As for the USB chip, the old part number was DLP-USB232M, which has been replaced by the 626-DLP-USB232M-G. Mouser has them at $25.
AMSAT used to sell them, but there were some reports that the computer would lose connection with the LVB, and so the use of an external adapter is recommended. That is usually the cheapest way to go.
73s,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:[email protected]] On Behalf Of David Maciel (XE3DX) <Sent: Thursday, December 29, 2016 3:20 PM <To: Grupo Amsat BB [email protected] <Subject: [amsat-bb] LVB DB9 Serial to USB Tracker .. < <Can anyone know how to convert my LVB Tracker from DB9 Serial to USB ..? I <do not want to use adapters .. < < < < < <David Maciel XE3DX < <*http://www.qsl.net/xe3dx/ http://www.qsl.net/xe3dx/* < <*[email protected] [email protected]* < < < < < <Before printing, please think about your responsibility and commitment with <the* ENVIRONMENT.* < <*Antes de Imprimir, *piensa en tu responsabilidad y compromiso con el <*MEDIO AMBIENTE.* <_______________________________________________ <Sent via [email protected]. AMSAT-NA makes this open forum available <to all interested persons worldwide without requiring membership. Opinions expressed <are solely those of the author, and do not reflect the official views of AMSAT-NA. <Not an AMSAT-NA member? Join now to support the amateur satellite program! <Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb