Zelfbouw Links

Sluiten VLF Projekten

Sluiten 136 kHz Projekten

Sluiten 472 kHz Projekten

Sluiten 500 kHz Projekten

Sluiten Multiband HF Projekten

Sluiten 160m Projekten

Sluiten 80m Projekten

Sluiten 60m Projekten

Sluiten 40m Projekten

Sluiten 30m Projekten

Sluiten 20m Projekten

Sluiten 17m Projekten

Sluiten 15m Projekten

Sluiten 12m Projekten

Sluiten 10m Projekten

Sluiten 6m Projekten

Sluiten 4m Projekten

Sluiten VHF Luchtvaart

Sluiten 2m Projekten

Sluiten 70cm Projekten

Sluiten 23cm Projekten

Sluiten 13cm Projekten

Sluiten 9cm Projekten

Sluiten 6cm Projekten

Sluiten 3cm Projekten

Sluiten 1,25cm Projekten

Sluiten EHF Projekten

Sluiten Antenne-aanpassingen

Sluiten Shack Accessoires

Sluiten Voedingen

Sluiten Meetinstrumenten

Sluiten µController Arduino

Junk Box Circuits

Sluiten Buizen

Sluiten Transistors 2N-Serie

Sluiten Transistors BC-Serie

Sluiten Transistors BD-Serie

Sluiten Transistors BF-Serie

Sluiten IC 74XX-Serie

Sluiten IC 74LSXX-Serie

Sluiten IC 74SXX-Serie

Sluiten IC LM-Serie

Sluiten IC TDA-Serie

HF Propagatie
RSS lezer
Bezoekers

   Bezoekers

   Bezoekers online

Zoeken




70cm Projekten - Zenders

432 MHz TX by LY3LP
Used the fundamental harmonic 24MHz quartz.Multiplied by the apperance of 432MHz . TX easily reapyted, uncritical.
http://sa555.blogspot.com/2011/03/432-mhz-tx.html

432MHz - 144MHz mini beacon by LY3LP
On 144 MHz it is heard well within 4 meters distance. 432MHz beacon is heard good about 30cm. For easy converters/receivers testing.
http://sa555.blogspot.com/2011/03/432mhz-144mhz-mini-beacon.html

433 Mhz TX by LY3LP
http://sa555.blogspot.com/2009/04/433-mhz-tx.html

434,2 MHz TX by LY3LP
http://sa555.blogspot.com/2010/05/4342-mhz-tx.html

434MHz SAW generator by LY3LP
434MHz SAW generator with ERA 3.
http://sa555.blogspot.com/2014/02/434mhz-saw-generator.html

435,9 MHz FM mini beacon by LY3LP
http://sa555.blogspot.com/2012/11/4359-mhz-fm-mini-beacon.html

experiment of 1transistor TV transmitter by JF1OZL
I will show you a simple TV transmitter. But this is planned only for experiment. You can not make TV station with such a simple circuit. And experiment of this gear makes some interference for TV.
https://www.qrp-ja.net/jf1ozl/tvtr.html

ORP/p 433 MHz NBFM tone, CW , SAW TX by LY3LP
http://sa555.blogspot.com/2012/12/orpp-433-mhz-nbfm-tone-cw-saw-tx.html

Simple 430 FM TX by JF1OZL
This is a very simple 430MHz band FM transmitter. This transmitter uses only 2 FET-transistors. Oscillator unit makes 16MHz signal with its crystal. The oscillating frequency is changed by Varicap diode.
https://www.qrp-ja.net/jf1ozl/430TX.html

UHF signal-generator by JF1OZL
One day, as a next step of my hand make activity, I decided to make 430MHz transceiver. 430MHz transceiver includes some 430MHz amplifier. To tune these amplifier and band pass filter, I need UHF signal generator.
https://www.qrp-ja.net/jf1ozl/uhfsg.html

Creatie datum : 16/08/2007 @ 18:57
Laatste wijziging : 14/08/2024 @ 22:49
Categorie : 70cm Projekten
Pagina gelezen 26431 keren

Print deze pagina Print deze pagina

Google Ads
^ Boven ^