Saturday, March 13, 2010

VX-8G APRS machine comes without AM QRP


Other blog applause this new APR machine VX-8G(R).
Remembering VX-7(R) and VX-8(R), these are precious QRP handy enables 1W AM in 50MHz.
This is an attractive, though the dry sound AM can not compete with classical transformer modulation.
Now Vertex drastically discard the function from VX-8 and they install GPS receiver instead.
Some QRPer say they welcome APRS unit to broadcast his position before reaching mountain summit to operate QRP. But here, several QRPers see this VX-8G with sorrow eyes without AM.

Recent blog update


We would like to provide reader Japanese QRP topic at least once a week. But, this March is the end of Japanese Fiscal Year. overwhelming business task are assigned to QRP bloggers. Update of blog is delayed often. Sorry so much for this situation.

Japanese QRP books (6)


This is the recent issue 'Handmade Transceivers Introduction' written by Mr.Imai JF1RNR. He had been an active writer in the CQ ham radio. Beautiful colored drawings to construct simple receiver and transceiver as the Manhattan style are followed by JA QRPers. In Section 1 fundamental issue are written. Section 2 introduces CW transmitters and receivers. Section 3 topics are advanced to DSB/SSB transceivers. Rigs you can reach in this book are follows, (Section 2) 50mW QRPp 7MHz TX, 500mW 7MHz CW TX, Simple 7MHz TRX, 50MHz 2tr CW TX, 50->7MHz crystal-convetar, 1.9MHz RX, 1.9MHz CW TX, 21MHz CW TRX (Akagi-standard), 144MHz CW transceiver,10MHz CW transceiver, 18MHz CW transceiver. (Section 3) 50MHz DSB transceiver, 144MHz DSB TRX, 14MHz SSB TRX, 7MHz transveter, 50MHz SSB/CW transceiver,28MHz DSB TRX, 7MHz 3W anplifier, 3.5MHz SSB TRX. Article will be introduced upon your request.