Analog radio
cherokee79
Posts: 6
in Electronics
First, what is better for indoor fm radio antenna 50/75/ 300 ohm
I hear that 300 ohm improve sound quality, the 300 OHM FM antenna
I hear that 300 ohm improve sound quality, the 300 OHM FM antenna
Answers
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You can get a balun to go from 75 ohm to 300 ohm and decide for yourself.
It really all depends on what you tuner is set up for. Older tuners were only 300ohm later they had both inputs. -
It's going to depend upon what antenna you're using. The idea is to match the antenna's impedance (at radio frequencies) with the FM tuner's input stage. For example if it is a simple FM antenna that came with classic receivers then that is a 300 ohm impedance antenna which would be connected to the 300 ohm antenna connection on the receiver. If, on the other hand, it was an outdoor FM antenna most owners would use a 300 to 75 ohm converter on the antenna and 75 ohm coaxial cable to the tuner and connect to the 75 ohm input on the receiver.
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Not sure if the input on any particular FM tuner "front end" is natively 75 ohm or 300 ohm.
Every added impedance matching device (i.e., 'balun' = balanced/unbalanced transformer) causes loss of signal. The less 'connections' of any sort, the better (at least in theory).
a priori it's not really likely to make a big difference, though.
a prioriI like 75 ohm unbalanced for noise rejection, but I have used both, with various flavors of indoor & outdoor antennae
Antennae are interesting things: there's science, art, and magic involved in the design and implementation of an antenna.
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And don't forget the "skin effect"!
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mhardy6647 wrote: »Antennae are interesting things: there's science, art, and magic involved in the design and implementation of an antenna.
fixed it fer ya
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Hello guys, I am interested in learning about electronics because of my passion. As of now, I am studying matric at Okara school, but I plan on becoming an electrical engineer in the future. That's why I am here for learning about it.
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henryroy57 wrote: »Hello guys, I am interested in learning about electronics because of my passion. As of now, I am studying matric at Okara school, but I plan on becoming an electrical engineer in the future. That's why I am here for learning about it.
If you're not a bot or spammer -- howdy & welcome.
I dont' know what matric or Okara are. You may find other/better sites for "learning about EE", though.
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henryroy57 wrote: »Hello guys, I am interested in learning about electronics because of my passion. As of now, I am studying matric at Okara school, but I plan on becoming an electrical engineer in the future. That's why I am here for learning about it.
It's ok I solved my problem but thanks for the reply. -
You never discussed any problem.afterburnt wrote: »They didn't speak a word of English, they were from South Carolina.
Village Idiot of Club Polk -
mhardy6647 wrote: »henryroy57 wrote: »Hello guys, I am interested in learning about electronics because of my passion. As of now, I am studying matric at Okara school, but I plan on becoming an electrical engineer in the future. That's why I am here for learning about it.
If you're not a bot or spammer -- howdy & welcome.
I dont' know what matric or Okara are. You may find other/better sites for "learning about EE", though.
Not sure what matric is either...but fried okara with shicken and mash taters is the bomb...just sayin'2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
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erat interfectorem cesar et **** dictatorem dicere a -
henryroy57 wrote: »henryroy57 wrote: »Hello guys, I am interested in learning about electronics because of my passion. As of now, I am studying matric at Okara school, but I plan on becoming an electrical engineer in the future. That's why I am here for learning about it.
It's ok I solved my problem but thanks for the reply.
Someone's in denial.
Stan
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