Amateur Radio Frequency and Wavelength Simple Math by MD0MDI 18 February 2013 by MD0MDI 18 February 2013 Electromagnetic waves travel at the speed of light, which is 299,792,458 meters per second (c) (our constant), and for you old school people, that’s 983,571,056.43 feet… Read more 0 FacebookTwitterTelegramLINEEmail
Computers Understanding the OSI 7 Layer Model by MD0MDI 15 February 2013 by MD0MDI 15 February 2013 Layer 7 : Application Examples: Telnet, HTTP, FTP, WWW Browsers, NFS, SMTP Gateways (Eudora, CC:mail), SNMP, X.400 mail, FTAM Functional Description: An application that… Read more 0 FacebookTwitterTelegramLINEEmail
Computers IP Math’s by MD0MDI 13 February 2013 by MD0MDI 13 February 2013 Given the IP address of 142.168.45.79 / 255.255.255.240 is the IP address of 142.168.45.79 a valid address for a user on that network? So… Read more 0 FacebookTwitterTelegramLINEEmail
Computers TCP and UDP Port Numbers by MD0MDI 13 February 2013 by MD0MDI 13 February 2013 Registered Ports: 1024 – 49151 The range of port number from 1024 to 49151 are the registered ports. They are assigned by IANA for… Read more 0 FacebookTwitterTelegramLINEEmail