Continuing the discussion of digital technologies in Ham Radio, George and Jeremy invite Kenneth Finnegan W6KWF back to do a very deep dive on Packet Radio, AX.25, and KISS modes.  We talk TNCs, equipment, and practical applications of Packet Radio this week on The Workbench. Kenneth Finnegan - https://twitter.com/KWF http://blog.thelifeofkenneth.com MMDVM Zumboard - http://mmdvm.blogspot.com/ DStar Registration - http://www.dstargateway.org/D-Star_Registration.html DMR Registration - https://www.dmr-marc.net/cgi-bin/trbo-database/register.cgi New Elecraft AX1 Antenna - https://va2ss.com/2017/10/19/elecraft-ax1-ultraportable-1720-meter-antenna-system/ Pacificon - http://www.pacificon.org/ Microwave Update 2017 - http://www.microwaveupdate.org/ Sierra Radio Systems - http://www.sierraradio.net/ Motrolla CDM1250 - https://www.motorolasolutions.com/en_us/products/two-way-radios/analog-business-radios/discontinued/cdm1250.html#tabproductinfo Motrola CDM1550 - https://www.motorolasolutions.com/en_us/products/two-way-radios/analog-business-radios/discontinued/cdm1550.html#tabproductinfo eMMC to SD Card adapter - https://ameridroid.com/products/emmc-adapter Raspberry Pi Compute Module - https://www.raspberrypi.org/products/compute-module-3/ http://blog.thelifeofkenneth.com/2017/08/building-stand-alone-raspberry-pi.html TAPR - https://www.tapr.org/packetradio.html Bell 202 Modem - https://en.wikipedia.org/wiki/Bell_202_modem TNC - https://en.wikipedia.org/wiki/Terminal_node_controller Nationwide Packet Network of BBS - https://en.wikipedia.org/wiki/Bulletin_board_system AMPRNet - https://en.wikipedia.org/wiki/AMPRNet AX.25 - https://www.tapr.org/pub_ax25.html https://en.wikipedia.org/wiki/AX.25 TNC-X Raspberry Pi - https://tnc-x.com/TNCPi.htm Kantronics TNCs - http://www.kantronics.com/ Soundcard Packet - https://www.soundcardpacket.org/ Direwolf - http://info.aprs.net/index.php?title=Dire_Wolf AGWPE - https://www.sv2agw.com/downloads/ UZ7HO Soundcard Modems - http://uz7.ho.ua/packetradio.htm OSI Model - https://en.wikipedia.org/wiki/OSI_model AFSK - https://en.wikipedia.org/wiki/Frequency-shift_keying HDLC - https://en.wikipedia.org/wiki/High-Level_Data_Link_Control KISS - https://en.wikipedia.org/wiki/KISS_(TNC) Outpost Software - http://www.outpostpm.org/index.php Alinco - http://alinco.com/Products/ham/mbl/DR-135/ http://www.scc-ares-races.org/freqs/packet-freqs.html HR360 APRS Shows - http://hamradio360.com/index.php/2017/01/24/ham-radio-360-all-about-aprs-with-w6kwf/ http://hamradio360.com/index.php/2017/03/07/ham-radio-360-aprs-follow-up-listener-qa/