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Old 22nd May 2007, 02:16 PM   #1
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Join Date: May 2005
Location: Mumbai
Default Vegakit FM Transmitters..

Has anybody tried using the Vegakit 1WATT FM Transmitter..? I am having a terrible time tuning it and making it operational..
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Old 23rd May 2007, 04:07 AM   #2
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Join Date: Jul 2003
Location: Dona paula, Goa
What did u power it with and what is recommended?

Gajanan Phadte
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Old 23rd May 2007, 01:27 PM   #3
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Join Date: May 2005
Location: Mumbai
@ Gajanan

Its rated o/p is 1watt. I have complete schematic of it posted on this thread :

Doubts regarding a 1Watt FM TX Kit

I have access to a DSO in my college I used to measure the output at various points in the ckt. RF voltage(around 200-300mV) appears across the supply rails, something I am very concerned about. Is it due to inadequate decoupling..?

Anyways please have a look at the the ckt diag. Its a very common design implemented by low-cost FMTx manufacturers.
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Old 24th May 2007, 05:27 AM   #4
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Join Date: Jul 2003
Location: Dona paula, Goa
Default component placement...

The components after soldering should remain in one position and if u move any, then your circuit will behave differently. Moreover u should install it in a metallic case like the one used for tv tuners.

Use a voltage regulator near the ckt with a small coil/series resistor of less than 10 ohm, composition type.

Gajanan Phadte
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Old 31st March 2011, 10:29 AM   #5
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hey hi i am from goa and i have used the transmitter its coolllllllll.
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Old 31st March 2011, 10:33 AM   #6
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its coolllllll i have tried it but it broke after falling. but it was cooool
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