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FM Radio Reception
- Thread starter anishniranam
- Start date
- Replies 20
- Views 17,148
@anish niranam,hi, been to the electronic shop u mentioned in thiruvalla. the fm antenna there was actually the dipole of the quad antenna with an attatched clamp; it was single element ,is it not ? As i already had a quad antenna I didn't buy it .however i bought a booster cos mine was too old, the guy there told me that it was only the VHF booster for tv, when I tried it boosted fm as well but still couldn't beat the perfomance of my old booster. There were boosters specifically designed for FM band earlier available in ernakulam totally different from tv boosters but now it is out of stock ! it seems to come in a package along with fm antennaAre u using that dipole antenna and vhf booster ? If so , what type of cable r u using to connect booster to antenna ? bye mcx
anishniranam
Broadband ***** Lover
MCX, Thanks for Your Effort.Actually i am using my old VHf Antenna System, No change done in the same (same Antenna, Wire,Boosters etc.).One of My friend is getting clear FM Signals using these, he is from Changanachery (Very Near to kottayam).One day the City Electronics People said me that now FM antenna available in the Shop, And they are Using this to catch FM Signals,i will check the same and post the results.Pls wait for some times, I have only get free times in some Sundays.Any way i will search for the Fm Booster and post the results.
Hi @anishniranam, Thanks for the reply. I think there will be a lot difference if u just replace ur current vhf antenna with the 100 Rs fm antenna of the city electronics and there is no need to buy booster or cable as u can use the present equipments. bye with regards mcx
Looking at the forum, I think it is better to make FM booster. Even active one. I will decide of making the same .I am in the booster manufacturing long back.We made the best tv booster in India.Our brand name is nakuda from Pune. In south, we were mainly marketing in Manglore & Banglore. Little quantity in Chennai. We hv very strong market in MP & Maharashtra.Hoping of giving good news to all FM lovers very shortly.
http://www.electronicsforu.com/efylinux/circuit/feb2003/feb02_FM.pdf.
Do not ask for PCB etc. A small copper clad veroboard can be also used. keep all connections as short as possible.
Power supply try with a 9V battery first. Later use an AC power pack 220Vac to 12VDC
100 ma will do. ( used for cordless telephones ) Cheap ones may have hum.
With a Beam antenna and this booster FM reception of fringe station /s should improve.
Do not ask for PCB etc. A small copper clad veroboard can be also used. keep all connections as short as possible.
Power supply try with a 9V battery first. Later use an AC power pack 220Vac to 12VDC
100 ma will do. ( used for cordless telephones ) Cheap ones may have hum.
With a Beam antenna and this booster FM reception of fringe station /s should improve.
The above mentioned original fm booster circuit is from an american magazine popular electronics 1996.
This was further put on net by Tony's Website! Schematics, Circuit Diagrams, Projects, HV, Building, Kits, Tesla, Marconi, 555, R/C, Metal Detecting, Electronics-Tutorials
The problem is of tuning & gassing!
To tune high frequency circuit properly requires expensive equipments.
Also the VSWR is very important factor.
Hence network analyser is required to adjust it properly.
It is just costing in millions.
The metro cities in India is having ch.4 tv band.
The audio(fm) is on 67.75 mhz. This is very near to 88 mhz of FM.
So is very important to hv proper filter at input & tuning.
This was further put on net by Tony's Website! Schematics, Circuit Diagrams, Projects, HV, Building, Kits, Tesla, Marconi, 555, R/C, Metal Detecting, Electronics-Tutorials
The problem is of tuning & gassing!
To tune high frequency circuit properly requires expensive equipments.
Also the VSWR is very important factor.
Hence network analyser is required to adjust it properly.
It is just costing in millions.
The metro cities in India is having ch.4 tv band.
The audio(fm) is on 67.75 mhz. This is very near to 88 mhz of FM.
So is very important to hv proper filter at input & tuning.
anishniranam
Broadband ***** Lover
Also the VSWR is very important factor
This is important when you TRANSMIT a VHF signal.
For receiving FM broadcast signals 88MHz to 108MHz,
the circuit has tuning facilities.
antenna matching fine tuning/network analyser/VWSR meter / Oscilloscope/ are not needed. cost in millions Dollars? From where you got the figure?
For Rs 50/= you get a FM receiver which receives all local FM stations !
No body takes the trouble of putting beam antennas / Rf amplifiers etc
to receive distant FM B/C stations.
This website gives more details but does not mention need for network analyser etc !
Active FM-Amplifier
Also portable Fm Radios incorporating TV FM/audio also available.
This is important when you TRANSMIT a VHF signal.
For receiving FM broadcast signals 88MHz to 108MHz,
the circuit has tuning facilities.
antenna matching fine tuning/network analyser/VWSR meter / Oscilloscope/ are not needed. cost in millions Dollars? From where you got the figure?
For Rs 50/= you get a FM receiver which receives all local FM stations !
No body takes the trouble of putting beam antennas / Rf amplifiers etc
to receive distant FM B/C stations.
This website gives more details but does not mention need for network analyser etc !
Active FM-Amplifier
Also portable Fm Radios incorporating TV FM/audio also available.
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