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D-Star Repeater

Converting a D-Star Hotspot to a Full Duplex Repeater

If you have a gmsk modem and put up a D-Star Compatible Hotspot, it is quite easy to convert this simplex system to a full duplex repeater that supports DPlus linking to other repeaters, reflectors and often to Hotspots, DVAPs and DV Dongles. With other […]

D-star Hotspot

What is it?

D-STAR Hot Spot is software for Windows that creates a D-STAR ‘point of presence’ (or hot spot) utilizing an analog radio and a GMSK node adapter. The hot spot creates RF access to the D-STAR network where none previously existed. With a hot spot set up, you can use your D-STAR […]

สอนทำสายอากาศ

http://ham.9bkk.com/antenna/yagi5e_145mhz.html

 

ข้อสอบ US-Exam

http://hamexam.org/ http://www.radioexam.org/exam

ความรู้เกี่ยวกับ PL259

•http://www.youtube.com/watch?v=_jlPcBVg45E&feature=related •http://www.youtube.com/watch?v=agkP9YMR3Kc&feature=related •http://www.youtube.com/watch?v=n1nabA6yMoI&feature=related

ความรู้เกี่ยวกับ Coxial Switch

•http://www.youtube.com/watch?v=5xn_EjhklYA&feature=fvwrel •http://www.youtube.com/watch?v=ojFlylDOY8o&feature=related •http://www.youtube.com/watch?v=j33SAVtmd_8&feature=related •http://www.youtube.com/watch?feature=endscreen&v=RPt2pLNP-2k&NR=1