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15m Projects - Transceivers

Klik voor vergroting15m CW Transceiver by PY2OHH
15m was always my preferred band, in spite of propagation going down, we learnt much from this project. I haven't indulged into making QSOs because I have little time to run the radios.
http://py2ohh.w2c.com.br/trx/trcvr15m/trcvr15m.htm

Click to enlarge15m Pipit QRP CW Transceiver by G3XBM
The rig is a simple direct conversion transceiver based around the OXO transmitter by GM3OXX with an SBL1 or similar double balanced mixer based direct conversion receiver.
https://sites.google.com/site/g3xbmqrp3/hf/15m_pipit

Klik voor vergroting21 MHz 5 W SSB / CW transceiver by JH1USG

http://jh1usg.html.xdomain.jp/rig/21CWSSB5W/21SSBCW5W.htm

Click to enlarge21MHz 1W SSB and CW Transceiver by JF1OZL
I made this new transceiver to operate CW and SSB with one box of machine. In Japan we can get from 10.595 to 10.695 10kHz step CB-junk crystals very cheap.
http://www.intio.or.jp/jf10zl/21m1w.htm

Click to enlarge21MHz 2W DSB transceiver by JF1OZL
About one year ago ,on 1998 my QSO friends said to me that he made this projects and he got 1 watt and he could make QSO with his local station.
http://www.intio.or.jp/jf10zl/21m2wdsb.htm

Click to enlarge21MHz DSB transceiver by JF1OZL
In these days cycle 22 becomes stronger day by day. I want to make QSO in 21MHz like the cycle 21, about 6 years ago. I made simple DSB( double side band) transceiver. One of my friend made the same rig and completed it. Therefore I think that this page has good re-productivity.
http://www.intio.or.jp/jf10zl/21dsb.htm

Click to enlarge21MHz Transceiver by JA6UVF

http://www2.plala.or.jp/ja6uvf/21transceiver/trcv21.html

Click to enlarge3 transistor 21MHz CW transceiver by JF1OZL
I made CW 1W transceiver with only three transistor. I could make QSO by this machine with Saga, Asahikawa (domestic far distance city),and Indonesia and Taiwan.
http://www.intio.or.jp/jf10zl/3trcw.htm

Click to enlarge5 valve ssb transceiver for 21MHz by JF1OZL
See another explanation about ssb rigs in my homepage before you read this page! I will explain about the differences from the another machines.
http://www.intio.or.jp/jf10zl/5vssb.htm

Click to enlargeNO6 Transceiver by JA6HIC
Even the HF band SSB transceiver that I made became the 6th unit with this transceiver, with the repetition of improvement.
http://www.geocities.jp/ja6hic/rig/6/erig6.html

Click to enlargeTHE OTAKUCHI / 21MHz QRPp CW Transceiver by JJ1SLW
I checked my QRP note and found interesting note; PIXIE2 modification for the simple small transceiver to fit the case of "TAMAGOCHI", the popular virtual pet. BINGO, that's it!!
http://www.qsl.net/jj1slw/otakuchi-e.htm


Creation date : 13/08/2007 @ 22:26
Last update : 04/09/2018 @ 20:15
Category : 15m Projects
Page read 17148 times


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