Do you have experience on connecting a Sub-1GHz transceiver to public TV antenna?

Dear RF Engineers and Applied Physicists,

What are your experiences on connecting a Sub-1GHz transceiver to a public TV antenna?

Since I live in a very dense city with skyscrapers, I cannot set up my own antenna outside my building. Then, I want to wire my own SMA Male to TV Male Plug coaxial cable. This will connect my Sub-1GHz transmitter directly to my building`s public TV antenna.

The next step is to connect my ISM band Sub-1GHz transmitter to test a receiver several hundred metres to 1km away.

Who have experience on this? What else should I do to improve the transmission or communication? I guess a high quality Element14 MultiComp coaxial cable can serve well.

Thanks for your opinions.

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JWx 10 months ago

In my country many TV antennas are advertised as including LTE filters (probably strong cellular signal is disrupting TV signal).

Other points to consider: building's public antenna installation can be one-directional, strong signal from the modem probably can ruin TV reception for the whole building (it could be many times stronger than signal received) and the problem with the impedance: celluar antenna is probably 50Ohm while TV cable/antena would be 75Ohm
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HKPhysicist 10 months ago in reply to JWx

Thanks for your valuable opinions.

It seems that I have to hang a large RF antenna outside my room when testing, in order not to interfere with neighbours.
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anniel747 10 months ago in reply to HKPhysicist

On what band is your modem?
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HKPhysicist 10 months ago in reply to anniel747

Mine is a LTE Cat M1, but the exact band is not very clear. Every country has her own band,
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HKPhysicist 10 months ago in reply to anniel747

Mine is a LTE Cat M1, but the exact band is not very clear. Every country has her own band,
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anniel747 10 months ago in reply to HKPhysicist

What makes you think its in the same frequency range as the tv antenna of your building and that you would need a large antenna?
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HKPhysicist 10 months ago in reply to anniel747

It is because my LTE CAT M1 modem has difficulty in sending data, but I have solved this by orientation.

Now, the next test is my new Sub-1GHz transceiver. I want to do a communication test over half to one km away. So I need an antenna standing high enough.
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anniel747 10 months ago in reply to HKPhysicist

You will certainly need an antenna tuner.
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