Some ideas settled into a first design idea.
I'll be using inverters, such a 7404, maybe LS.
The oscillator will be a Pierce design.
The attempt will be to use as many gates of the inverter linearised.
As soon as there's more, I'll provide an update.
Joachim's Ham-Radio and Radio-Frequency Blog (A Solderful of Secrets) - from Longwave to Microwaves
Showing posts with label drm. Show all posts
Showing posts with label drm. Show all posts
Thursday, October 15, 2009
Wednesday, October 14, 2009
On today's menu: DRM
Stumbled across some stuff, making me think I'd need to design and build a DRM-receiver. First ideas evolved; the design will be using (pulled) crystals and logic ICs.
Frequencies the receiver should be receiving, standard crystal frequencies provided:
Frequencies the receiver should be receiving, standard crystal frequencies provided:
- 3995 kHz (BBC/DW) - 4.000 MHz
- 6130 kHz (BBC/DW) - 6.144 MHz
- 3965 kHz (RFI) - 3.9321 MHz
- 5995 kHz (Radio Australia) - 6.000 MHz
- 6015 kHz (TDPradio) - 6.000 MHz
- 9850 kHz (Radio Prague) - 9.8304 MHz
- 11995 kHz (RDP Int.) - 12.000 MHz
- 1008 kHz (Economic. Ch.) - 2.048 MHz
- 1548 kHz (DW) - 3.0721 MHz
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