audio predajnik do 10KM

Cr4cK_M45t3R_Fl45H · Post by **Cr4cK_M45t3R_Fl45H** » 20-07-2005, 12:02

bio bi jako zahvalan kad bi mi neko mogao obezbjediti semu audio predajnika da moze
dobaciti bar jedno 5 KM

i semu odgovarajuceg prijemnika

u naprijed hvala

iq · Post by iq » 20-07-2005, 15:52

http://www.geocities.com/Area51/Nebula/ ... ronica.htm

5W verzija.

samo ?to ti izlazni tranzistor ko?ta 120kn=30km

Cr4cK_M45t3R_Fl45H · Post by **Cr4cK_M45t3R_Fl45H** » 20-07-2005, 16:38

THX m8

pravo si mi pomogao

iq · Post by iq » 20-07-2005, 17:36

ja sam radio 1w verziju, samo me malo yebe onaj izlazni tranzistor, krivog sam kupio izgleda...

Cr4cK_M45t3R_Fl45H · Post by **Cr4cK_M45t3R_Fl45H** » 20-07-2005, 17:39

ja cu sutra otici kupiti sve sto mi je potrebno
za 5w verziju

pa cu postaviti rezultate

mdj300B · Post by **mdj300B** » 20-07-2005, 20:57

Hej, iq i ja sam isto pravio taj od 1W i proradio mi je od prve (izlazni tranzitor 2N4427), ali sam jednom tipu na drugom forumu predložio
kao zamjenu 2N3866 (nije našao ovaj prvi pa sam ja mislio da bi ovaj mogao kao zamjena) pa mu sada neće da proradi.
Što misliš dali je ovaj tranzistor 2N3866 stvarno neadekvatan kao zamjena???

mdj300B · Post by **mdj300B** » 20-07-2005, 21:02

Cr4cK_M45t3R_Fl45H ako te zanima ja sam na ovaj osnovni Veronika 1W dodao još posebno pojačalo (s 2SC1971 -10km tranzistor) ima snagu 6-7Watta a za ovu snagu dovoljno mu je na ulazu 600mW ( što veronika pri naponu napajanja od 12V daje na izlazu).
Ako hoćeš šaljem podatke!

iq · Post by iq » 20-07-2005, 21:53

@mdj300B ja sam taj tip na drugom forumu

a usput i meni posalji to za pojacalo 7W.
a jel bi se moglo na tom dobit 15W sa 2SC1972???

iqvalue999@net.hr

mdj300B · Post by **mdj300B** » 21-07-2005, 02:34

Kako je svijet mali!
Ne, znam nisam probao varijantu od 15W ova prva s jagi antenom za FM ima domet 10Km.

Za domet ti je jako važan čist pogled antene!
Znači, antenu na što veću visinu, što si ja nisam mogao priuštiti.
Tako da je ovih 10Kilometara s 7Watta i previše.

Cr4cK_M45t3R_Fl45H · Post by **Cr4cK_M45t3R_Fl45H** » 21-07-2005, 08:39

mdj300B wrote:Cr4cK_M45t3R_Fl45H ako te zanima ja sam na ovaj osnovni Veronika 1W dodao još posebno pojačalo (s 2SC1971 -10km tranzistor) ima snagu 6-7Watta a za ovu snagu dovoljno mu je na ulazu 600mW ( što veronika pri naponu napajanja od 12V daje na izlazu).
Ako hoćeš šaljem podatke!

bio bih ti jako zahvalan

iq · Post by iq » 21-07-2005, 09:43

ajde po?alji shemu tog poja?ala

mdj300B · Post by **mdj300B** » 21-07-2005, 15:17

Evo ga.

6 Watt eindtrap:

Assemble by soldering the components to the pads indicated. Keep
coil, resistor, and capacitor leads as short as possible. The coils should
be 3/16" to 1/4" above the board and separate turns by one wire diameter.
Bend leads to form a little mounting foot for soldering to the circuit
board. Tuning and power output are affected by the distance between the
coil turns, you can make fine adjustments by either spreading or
compressing the coil slightly. The area surrounding the pads is ground.
C2, C3, C4, C6, C7, C8, C9, C10, L2, and R1 are soldered at one end to
ground as well as the shield braid on the coax cables. Bolt Q1 to a small
heat sink or the chassis with heat sink thermal compound or gray thermal
pad underneath the tab. With an input level of 200-500mw, you should see
an output of 5-6 watts. Be sure to have a proper dummy load (50 ohms) or
tuned antenna connected to the output, doing otherwise will likely destroy
the transistor.

Parts List
QuantityDescriptionPart Number(s)
2470 pF mica capacitorC1, C5
175 pF mica capacitorC2
139 pF mica capacitorC3
112 pF mica capacitorC4
20.001 uF disc or monolythic capacitor (marked either 102, .001, or
1n)C6, C8
20.1 uF disc or monolythic capacitor (marked either 104, .1, or
100n)C7, C9
110 to 22 uF electrolytic capacitor (observe correct polarity)C10
11 turn #18 tinned copper, 1/4" dia.L1
11 uH inductor, blue lumpy itemL2
12 turns #18, 1/4" dia.L3
17/10" #14, hairpinL4
25 turns #20, 1/4" dia.L5, L6
156 ohm resistor with ferrite bead over lead at the base of end of
Q1R1
12SC1971 RF transistorQ1
2SO239 socket
2banana plug (1 each red and black)
2banana socket (1 each red and black)
1ferrite bead
44-40 nuts
44-40 bolts
RG174 coaxial cable
hookup wire
soldering lugs

mdj300B · Post by **mdj300B** » 21-07-2005, 15:19

I još!

iq · Post by iq » 21-07-2005, 18:02

?ini mi se da su output nacrtali na krivom mjetsu!

iq · Post by iq » 21-07-2005, 18:18

il sam ja glup il je plocica skroz krivo nacrtana!

mdj300B · Post by **mdj300B** » 21-07-2005, 22:23

Evo i moja verzija u samogradnji, samo fali još jedan ferit na oko žice od otpornika, moram ga nać

iq · Post by iq » 24-07-2005, 23:20

a ja bas imam doma 2 male ferrite beads, bas namjenjene za to! da si sad ti kojih 200-300km bli?e.... ali su prekratke za h1 na veronici.
jel se to na h1 leme i otpornik i ?ica ili samo ?ica?
pod kojom kategorijom imaju te feritne jezgre u chipoteci???