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80m Projects - CW Transceivers

Click to enlarge3.5MHz 5W CW Transceiver by JF1OZL
I operated 3.5MHz SSB for two weeks. But 10W SSB was too weak to make CQ by myself. 3.5MHz band is very noisy in Japan. Therefore I decided to make and operate 3.5MHz CW with QRP.
http://www.intio.or.jp/jf10zl/35mcw.htm

Klik voor vergroting80m CW QRP transceiver by MØDGQ
This transceiver came about from wanting something reasonably small and simple to use on camping holidays. Despite its simplicity performance is very good and has provided many very enjoyable CW qso’s.
http://www.m0dgq.co.uk/80m%20QRP%20transceiver.html

Click to enlarge80 Meter CW Transceiver by PA2OHH
A superhet receiver with a crystal filter is a very good solution for single side band reception. The VFO frequency is the same as the reception frequency and is also used for the CW transmitter.
http://www.qsl.net/pa2ohh/98txrx.htm

Click to enlarge80 Meter CW Five Watt QRP Transceiver by K3NG
This project originally started out on the bench as a 40 meter phone transceiver. In one evening I changed various parts to transform the project into an 80 meter rig.
http://kambing.ui.ac.id/onnopurbo/orari-diklat/teknik/homebrew/80m-cw-k3ng/5%20Watt%2080%20Meter%20QRP%20CW%20Transceiver.htm

Click to enlarge80m FETer QRPp CW transceiver by G3XBM
Some years ago a beautifully simple circuit for a 40m CW transceiver by W2UW was published in GQRP SPRAT.
This inspired me to have a go at an even simpler version for 80m using just 14 parts apart from the key and crystal earpiece.
https://sites.google.com/site/g3xbmqrp3/hf/feter-80m-qrpp-cw-transceiver

Click to enlarge80 meter QRPp Radio by WA6OTP
This is a new Transmitter/Receiver for backpacking. This has a 800 milliwatt transmitter and an NE602 receiver. It now has side tone and a PTO RIT.
http://www.wa6otp.com/80.htm

Click to enlarge80 m Transceiver by GW4ALG
The home made transceiver covers 3.5 to 3.6 MHz and is CW only.
http://www.alg.myzen.co.uk/radio/qrp/80txr.htm

Click to enlarge80m XBM80-2 QRP CW transceiver by G3XBM
This is an experimental CW transceiver for 80m, although the same idea will work on all HF bands. So far I have only used it on the bench and not on the air. I have called it the XBM80-2 (80m two transistors - very original!).
https://sites.google.com/site/g3xbmqrp3/hf/80m_xbm80

Click to enlargeA Rig for the MAS Contest by KD1JV
The M.A.S., (Minimal Art Session) is a contest started by Dr. Harmut "Hal" Weber, DJ7ST. (Now a SK)The idea behind this contest is to encourage Hams to build and operate a rig using a minimal number of parts. The rig I came up with uses 51 parts for a complete transceiver, giving a 50% bonus.
http://kd1jv.qrpradio.com/MAS/MAS.htm

Click to enlargeEighty - Oner by SP5DDJ
For many Hams 80m band is most accesible, so I developed another one-watter based on VXO.
http://www.qsl.net/sp5ddj/eighty-oner.htm
 

Click to enlargeFKM QRP 5 Tranceiver door PA3FKM
Dit ontwerp heb ik gemaakt naar aanleiding van veel opmerkingen van Robert over diverse andere ontwerpen voor eenvoudige kortegolf tranceivers met klein vermogen.
http://pascal.nedlinux.nl/zelfbouw/FKM-QRP-5.html

Click to enlargeKEROKERO - 80m transceiver CW QSK by PY2OHH
The 80m band is a bit deserted! We decided to build something, this is the first project in a series, it is a transceiver with simple parts, with a direct conversion receiver and a basic 4W TX.
http://py2ohh.w2c.com.br/trx/kerokero/kerokero.htm

Click to enlargePIXIE 2 Transceiver G3LHJ's Version of WA6BOY's Tiny Rig
This modified version of W6BOY's little rig was published in Sprat number 88. The rig is designed for 80m and although very simple, it can give interesting results.
http://www.zerobeat.net/g3ycc/pixie2.htm

Click to enlargeThe AP-80 An Alternative Pixie by KD1JV
The Pixie is about the simplest rig ever devised, using just 2 transistors and a LM386 audio amp. Unfortunetly, it's also one of the poorest performing rigs ever devised. It's deficentcies are too numberus to list.
http://kd1jv.qrpradio.com/ap80/AP80.HTM

The Micro-80 Mini Transceiver by RV3GM
The circuit is a simple QSK transceiver for 80 metres which could be adapted for other bands by changing the crystal and L,C in the output circuit.
http://www.qsl.net/g3pto/micro80.html

Click to enlargeUnichip 80m CW Transceiver by GØUPL
This project somehow grabbed my imagination. It's a complete 80m transceiver in one chip, the CA3086 transistor array. One transistor for crystal oscillator, one for a PA, and three for the audio amplification ...
http://www.hanssummers.com/unichip.html


Creation date : 12/08/2007 @ 01:07
Last update : 27/11/2016 @ 15:00
Category : 80m Projects
Page read 38732 times


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