|
Discription
of 13 cm FM-ATV-transmitter |
|
 |
Homemade transmitter
Exciter a tuned oscillator
with BFR 91,(pll.controlled)
frequency 1170 MHz,next 3 times BFR 91 and BFR 96,
with transistor BFQ34 A in the driver stage ,output ca 500 mW then a Motorola
Power Module output 4 Watt, extra an Narda attenuator
ca 3 dB. Next a multiplier from KPN, output ca.400mW on 2340MHz. Final Spectrian solid state 13 cm
amplifier
,Output ~60 Watt..Antenna a 1 Mtr. Parabolic-
Antenna ,gain 24,5 dB. Learn
more about this Spectrian
60 Watt solid state 13 cm Amplifier
Click
here
|
|
|
|
 |
|
60 Watt solid state 13 cm Amplifier |
 |
 |
| Spectrian
60
Watt 13 cm Amplifier |
View
in side (cooling from 13 cm Power Amplifier) |
| |
|
|
|
ATV-FM -13cm-converter (2,2Gc
-2,5Gc),design and principle from DC6EH. with 2 times FET MGF1302 in front-end and a MGF1302 in the mixer. The required mixer-signal comes from a signal-generator HP,Model 8616A, with this device you can also tune on the receiving frequency .The internal IF-amplifier is also build with a MGF1302. IF-output on70 Mc. Extra a 70 Mc -IF-amplifier with
a BB -output. Next a audio tuner ,audio-detector ,video separator and at last a video amplifier and 4 watt audio-amplifier,everything homemade.
|
| |
| 13cm-preamplifier ( DC 6 EH) 2,3- 2,4 Gc
,Noise factor 0,8 dB with a FET MGF1302, Next a wideband amplifier from Avantek 2GHz-4GHz,total amplification ca.55 dB. |
|
|
|
Click here back to Index Homepage: |
English |
|
|
