Welcome to Sam's Microwave Page

G4DDK  / W5DDK
Loc: JO02PA




QSL
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Low noise pre-amplifier kits  -
As used at Bochum for the incredible Venus bounce (EVE) tests in the 12cm band
1296 MHz, 2320 MHz and 3400 MHz (23,13 and 9cm) amateur band low noise pre-amplifier kits are now available. Also suitable for 1090 MHz, 1420 MHz, 2200 - 2450 MHz
I have updated the construction details for all three VLNAs versions. Please read before commencing construction of your kit.

vlnasmall


G4DDK2001 PCBs and now FULL kits except the crystal*
2001 thumb

The 750 - 1350 MHz frequency range L signal source, as published in the September 2008 RSGB Radcom.
*The crystal required depends on the final frequency. There are too many variations for me to stock crystals
Many builders already have suitably aged crystals they may wish to use!

WA5VJB PCB antennas
Enquire for details

ANTENNA
Log periodic yagis 900 - 2600 MHz and 2 GHz to 11 GHz (Including 3400 MHz) Vivaldis 2 - 25 GHz
1296 MHz 'Big Wheel' antennas.


G4DDK2010 144 to 28MHz receive converter design from March 2010 Radcom article
Please note that there was an error in the component list. Some digits in the Coilcraft inductor
number got reveresed. The correct part number is:
165-07A06L   92nH

Details here http://www.coilcraft.com/uni5.cfm

Contents
My bands  
Technical information
The UK Microwave Group
RSGB
WA5VJB Antennas

About G4DDK
Surplus items
Links  
G4DDK Blog Spot

EME

Change history:-

 
  Technical information

8/1/2010
Minor cosmetic changes to the front page

21/2/2010
Rx converter notice






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This page last given some TLC
21/2/10

Page first established November 1997