note:
Everyone reported that the heat of the power amplifier module is relatively large, and the new version adds the installation position of the heat sink.
The high-power module must be equipped with a heat sink, otherwise it is easy to overheat and burn out
The following is the description of the old model. The parameters of the new model are the same, but the new model adds the heat sink installation position.
If you need to weld and debug the transmitter module and the power amplifier, please take a picture of the welding manual fee, because we also ask the home appliance repairer near the shop to weld, and we need to pay.
According to the needs of our customers, this shop has exclusively designed an FM amplifier. It''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s just a follow-up power amplifier, not a separate launch board. It can only be used in conjunction with the store''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s A/C/E1 three fm transmitter modules, and cannot be used alone.
【powered by】
1, 6V, 8.4v or 9v, it is recommended to use two lithium batteries in series(8.4v).
2. Working current: about 500mA
3. Ordinary 9v square battery cannot work because the power supply current is too small.
4. Regulated power supply may have AC noise, it is better to use battery power supply.
【frequency】
What is the frequency of the matching A/C/E1, and what is the frequency of the unit after connection.
【Description】
1. The two green circuit boards are experimental circuit boards, on which the E1 module and the A module are soldered, to show you the usage, the black circuit board with the main picture is actually shipped.
2. The antenna connector is a professional BNC connector. The matching antenna is 12 yuan per piece, no way, the purchase is expensive.
Added notes on November 16, 2015:
Today, a customer Wangwang reported that he used the e1 module in conjunction with the power amplifier module, and drove the test in the suburbs, and the open distance reached 2.3 kilometers!
This store has no conditions to test this way. This is the result of customer testing and is for reference only. This store does not promise the launch distance.