Class E transmitter with PWM modulator in France

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Class E transmitter with PWM modulator in France

Postby f5maf » Fri May 31, 2013 4:14 am

Hello all,

This is an article on the ARACCMA blog. It describes 80M AM transmitter receiver with S9plus kits.

Image

http://araccma.eklablog.com/realisation-d-un-tx-rx-80m-pwm-avec-pilotage-par-dds-par-f5maf-a65050437

We have a regular QSO on 3.600 KHz, ARACCMA blog presente associative menbers and their material and technical articles.

73,
Marc
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Re: Class E transmitter with PWM modulator in France

Postby kf1z » Fri May 31, 2013 3:22 pm

I built the fat5 a few years ago ( 3 ? )

Worked well, but was just a bench experiment at the time.
Had a few conversations with it, then it went in a box.

Wish I could read the blog. :-)

bruce
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Re: Class E transmitter with PWM modulator in France

Postby f5maf » Sat Jun 01, 2013 9:38 am

Hi Bruce,

s9plus kits become mature.

My transmitter delivre 100W (43V) carrier and over 400W peak with 47V (350W PSU).

good reading

Marc
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Re: Class E transmitter with PWM modulator in France

Postby Diego-CX4DI » Mon Jun 03, 2013 9:18 am

vous pouvez améliorer l'efficacité de 90% à 96% par le remplacement de la T-200 et T-157 bobines à noyau d'air.

bonne chance!
salutations,
Diego
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Class E with PWM modulation
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Re: Class E transmitter with PWM modulator in France

Postby f5maf » Tue Jun 04, 2013 2:26 pm

Merci Diego pour l'astuce.
Hélas cela ne rentrera plus dans le rack ;-)
J'effectuerai un test avec la self du filtre en L.
73
Marc
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Re: Class E transmitter with PWM modulator in France

Postby yb0djh » Wed Jun 05, 2013 7:22 pm

Wish I could read the blog. :-)


I can read clearly your blog. i m using Chrome browser, and translate it to english.

Thanks for valuable info friend.

73s
Agus H
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