Hambrew Links

Close VLF Projects

Close 136 kHz Projects

Close 472 kHz Projects

Close 500 kHz Projects

Close Multiband HF Projects

Close 160m Projects

Close 80m Projects

Close 60m Projects

Close 40m Projects

Close 30m Projects

Close 20m Projects

Close 17m Projects

Close 15m Projects

Close 12m Projects

Close 10m Projects

Close 6m Projects

Close 4m Projects

Close VHF Airband

Close 2m Projects

Close 70cm Projects

Close 23cm Projects

Close 13cm Projects

Close 9cm Projects

Close 6cm Projects

Close 3cm Projects

Close 1,25cm Projects

Close EHF Projects

Close Antenna Matches

Close Shack Accessories

Close Power Supplies

Close Test Equipment

Close µController Arduino

Junk Box Circuits

Close Tubes

Close Transistors 2N-Serie

Close Transistors BC-Serie

Close Transistors BD-Serie

Close Transistors BF-Serie

Close IC 74XX-Serie

Close IC 74LSXX-Serie

Close IC 74SXX-Serie

Close IC LM-Serie

Close IC TDA-Serie

HF Propagation
Visits

   visitors

   visitors online

Search




4m Projects - Transceivers

Click to enlarge4m QRP Transverter by G3XBM
There is almost no commercial equipment for the 4m band and certainly almost nothing from the traditional Japanese manufacturers. So, to get on the band it's necessary for me to design and build a simple transverter.
https://sites.google.com/site/g3xbmqrp3/vuhf/4m_tvtr

Click to enlarge4m QRP Transverter, Roger G3XBM by EI4DIB
There is almost no commercial equipment for the 4m band and certainly almost nothing from the traditional Japanese manufacturers, although the new IC7100 has 4m coverage.
So, to get on the band it was necessary for me to design and build a simple transverter.
http://ei4dib.blogspot.com/2015/09/4m-qrp-transverter-roger-g3xbm.html

Click to enlarge4METER (70MHz)transverter door PA5HE
Dit project is nu in aanbouw met het oog op de vrijgave van deze band.
Uitgangspunt is een 2 meter transceiver en een elektuur 50MHz transverter.
http://www.hvde.nl/electronica/tx/4m/4m_nl.shtm

Click to enlarge50 &70/28MHZ Transverter by YO4HFU
This transverter I started 4 years ago. I avoided using common blocks for 50 & 70 MHz. In the future I would never use a single board for low signal and power amplifier.
https://www.qsl.net/yo4hfu/TRANSV_50MHZ.html

Click to enlarge70 MHz all mode transceiver by PE1JPD
Since a couple of years the 70MHz band is available for amateur usage in PA, I decided to build an all-mode (FM, USB, LSB and CW) transceiver for this band.
http://www.pe1jpd.nl/index.php/70-mhz-all-mode-trx/

Click to enlarge70 MHz Transverter by OZ2M
This purpose of this page is to give a brief description of a 70 MHz transverter that has been published in the Danish amateur radio magazine "OZ." This way hams outside Denmark may also benefit from the design.
http://www.rudius.net/oz2m/70mhz/transverter.htm

Click to enlargeDe "CWR-4 transverter" (Dutch) by PAØCWR
Oktober 2011 begon het er naar uit te zien dat we per1 januari 2012 in Nederland de beschikking gaan krijgen over een nieuwe amateurband rond de 70Mhz (4meter). Dit leek me een goede gelegenheidvom weer eens een zelfbouw-project op te starten.
http://www.woering.com/PA0CWR/4m-transverter.html

Click to enlargeJUMA FM79 70 MHz FM transceiver by OH2NLT & OH7SV
JUMA FM70 is a compact digitally controlled FM transceiver for the 70 MHz amateur radio band (4 m). The transceiver will be available as a component kit which inludes all the electrical and mechanical componets.
http://www.jumaradio.com/juma-fm70/


Creation date : 10/11/2011 @ 00:26
Last update : 11/10/2020 @ 14:00
Category : 4m Projects
Page read 27698 times


Print the article Print the article

Google Ads


^ Top ^