hi
i can recommend the following mac s/w for hamradio activity
for antenna modeling on mac
http://www.w7ay.net/site/Applications/cocoaNEC/index.htmlcan also see w7ay site for cocoamodem for digital modes s/w for mac
http://www.w7ay.net/site/Applications/cocoaModem/index.htmlfor good logging s/w is macloggerdx
http://dogparksoftware.com/MacLoggerDX.htmland
for satellite tracking is macdoppler
http://www.dogparksoftware.com/MacDoppler.htmlfor freeware mac logging there is rumlog
http://www.dl2rum.de/rumsoft/RUMLog.htmlto use LOTW you will need tqsl s/w see arrl website at
http://www.arrl.org/instructionsalso make sure to down load pl2303 driver which depend on what OS you are running on the mac
for any rig interface using their usb/serial adpater s/w
http://www.prolific.com.tw/eng/downloads.asp?id=31if you decide you want to do SDR radio using an RF Space SDR-IQ
then see site
http://fyngyrz.com/?p=915the sdr-iq can be interfaced with radios to give realtime spectrum view
hope this helps
and
i'll be glad to answer any questions if i am able
paul k3sf