Help me determine the best configuration for RF range

[5282604]

hii.

if i have the following

100 mhz , 1 watt transmitter

143 mhz , 1 watt transmitter

413 mhz , 1 watt transmitter

900 mhz , 1 watt transmitter

2.4 ghz , 1 watt transmitter


which will be cover big area ?

 

[chuckey]

Re: rf need help in range.

Given the same design of aerial, i.e. 1/4 wave dipole. The lower frequency will be better.
Frank

 

[tpetar]

Re: rf need help in range.

This is hard question, but your question is incomplete and dont have lots of parameters. Very often for RF experiments with measurements must be done.

1. What antenne ?
2. Surounding and blocking objects ? Material of this objects ?
3. TX RX are completely isolated from other RF sources ? We are in NY city streets or somewhere on open seas ?
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In cities and in building higher frequencies, on open lower. Higher frequencies have better penetration throught objects then lower frequencies. This is just my opinion, maybe other members have different opinion then mine.