MeoW: Difference between revisions
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(→DDS) |
(→PA) |
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* in kit https://www.aliexpress.com/item/New-45W-SSB-linear-Power-Amplifier-Kits-With-low-pass-filter-for-transceiver-Radio-HF-FM/32574683152.html - 45W, 12-15v | * in kit https://www.aliexpress.com/item/New-45W-SSB-linear-Power-Amplifier-Kits-With-low-pass-filter-for-transceiver-Radio-HF-FM/32574683152.html - 45W, 12-15v | ||
=== LPF === | |||
{|style="color:blue; background-color:#eeeeee;" cellpadding="10" cellspacing="0" border="1" | |||
Freq||C1||L2||C3||L4/C4||C5||L6||C7 | |||
|- | |||
||1000||3000||9,3||4560||8,5/680||4560||9,3||3000 | |||
|} | |||
== Pretrattamento audio == | == Pretrattamento audio == | ||
Revision as of 20:52, 12 March 2017
Transmettitore ad onde medie
Specifiche
- prezzo <= 50 euro
- potenza >= 50 W
- senza assemblaggi SMD
Sezioni
Scheda madre
- Filtraggio alimentazione
Pretrattamento audio
- equalizzazione
- led overdrive
uC controllo
DDS
- http://www.ebay.it/itm/AD9850-Module-DDS-Signal-Generator-Module-0-40-MHz-2-Sine-Square-Wave-Output/121813761678
- https://www.aliexpress.com/item/New-AD9850-DDS-Signal-Generator-Module-0-40MHz-Test-Equipment/32328648512.html che espone il piedino 12 (Rset)
controllato da Ondeggiatore
PA
- in kit https://www.aliexpress.com/item/New-45W-SSB-linear-Power-Amplifier-Kits-With-low-pass-filter-for-transceiver-Radio-HF-FM/32574683152.html - 45W, 12-15v
LPF
Freq||C1||L2||C3||L4/C4||C5||L6||C7| 1000 | 3000 | 9,3 | 4560 | 8,5/680 | 4560 | 9,3 | 3000 |
Pretrattamento audio
letture