The FM broadcast band, used for FM broadcast radio by radio stations, differs between different parts of the world.
In Europe, Australia and Africa , it spans from 87.5 to 108 megahertz (MHz) - also known as VHF Band II - while in the
Americas it ranges from 88 to 108 MHz. The FM broadcast band in Japan uses 76 to 95 MHz. The International Radio and
Television Organisation band in Eastern Europe is from 65.8 to 74.0 MHz, although these countries now primarily
use the 87.5 to 108 MHz band, as in the case of Russia. Some other countries have already discontinued the OIRT
band and have changed to the 87.5 to 108 MHz band.
If you want everyone to hear your broadcast, or at least as many people as possible, use the 88–108 MHz band,
that's where all the commercially made, personal radio receivers work and all the commercial broadcast radios work.
Let's check the details of TR502/TR505
Frequency range: FM:87~108MHz / FM:87.5~108MHz
Frequency step: 100Khz / 100Khz
Frequency stability: ±10PPM / ± 10PPM
Frequency stabilization method: PLL
Harmonics, noise radiation: ≤－50dB / ≤65dB
Output impedance: 50Ω / 50Ω
RF output power: Max 15W (8-level adjustable) / 0~25W
Audio distortion: 0.3% / 0.3%
Bluetooth distance: about 5m
Frequency response: 50Hz~15000Hz / 50Hz~15000Hz
Separation: ≥30dB / ≥35dB
Frequency modulation: ±75KHZ / ± 75KHz
SNR: ≥60 dB / 70 dB
Antenna connector type: TNC / TNC
If you want to broadcast the church’s Easter service to cars in the parking lot, to avoiding people meet together, you can
check the Retekess TR502 OR TR505. TR502 works with the power 5/15w, and the TR505 power is from 0-20W.
The working range of TR502 is 2-3KM and TR505 is 3-4KM. We test them in the open real by ourselves.
Pls choose the type as you need.
If you want to get more information, pls email us to firstname.lastname@example.org.