Screenshot 13cm echoes with Dgrd - 2.4 dB: PA with 6 x MRF21120 * NEW PA * 3dB more power gives a very good improvement on my echoes !!
Screenshot 13cm echoes with Dgrd - 2.4 dB: PA with 3 x MRF21120
1 modified PA with 3 x MRF21120 + WATERCOOLING
Watercooling parts for 2 PA's made by Bert, PE1RKI
Watercooled PA with 2 times 3 x MRF21120. Input and Output with ratrace couplers by RF Hamdesign. You see the PA in TEST configuration
New G4DDK 13cm Preamp, measured in Heelweg The Netherlands 19th Jan. 2013 : NF = 0.27dB and G = 28,6dB (Made in Veendam by Jan, PA3FXB) measured in Örebro Sweden 15th May 2013 : NF = 0.33dB and G = 28,3dB
A very nice recording made by Bruce, PY2BS of SSB QSO between LX1DB and PA3DZL on 13cm made 16-06-2013