FM Frequency Modulation Wireless Microphone Module DIY Kits Board Parts Simple Electronic Production Suite 88-108MHz

DIY KITS, need solder yourself

The circuit transmiion frequency of about 90MHz,using ordinary FM radio receiving equment, adjusting the inductance L to adjust the transmiion frequency to avoid the local radio frequency, the circuit operating voltage: DC 3V-6V, emitted from the package of about ten to several tens meters, the distance of the supply voltage, the antenna length and impedance matching, geographic extent of open, electroic interference, the receiver sensitivity related equment.

Performance parameters:

Frequency Range: 80MHz-108MHz

Operating voltage: DC3V-6V

TX antenna is connected: You can take a piece of wire as an antenna,

the antenna should not be too long, so as not to affect the frequency stability .

Debugging:

Connect the power and antenna test, the antenna can be used 20-40 cm thick wire (antenna not too long, so as not to affect the frequency stability), the package does not provide, you need to bring your own. FM radio receiving equment used to adjust the tightne of the inductor coil on simple wirele microphone, so the radio signal received by the microphone.

Package including :

R1 2.2 k 1

R2 22 k 1

R3 resistance 220 1

C1 C2 ceramics s 104 3

C3 ceramics s 103 1

C6 C7, C4 ceramics s 30 3

C5 ceramics s 10 1

Q triode 9018 1

L inductance 4T 1

1 MIC electret microphone

BT3V CR2032 battery holder 3 v 1

: 26 * 52 mm

About shping
Shping and Pack All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.