3-23Mhz R10 AM Radio Kurzwelle Empfänger Kurzwelle Broadcast Signal Empfangen PLL DIY Kits LED Digital Display Frequenz

Produktbeschreibung

R10 Shortwave PLL Receiver Kit
Schematic diagram LINK
Overview
This kit is specially for receiving ordinary short-wave broadcast signals, combined with the actual use of the domestic situation, after many optimizations to form the current version. The hardware described in this article is V8.0 and the main PCB labelled “HM00ABRA_8”.
Specifications
Supply Voltage: 12V (It is recommended to use linear regulated power supply or battery)
Current: 110mA
Tuning Range: 3-23MHz
Mode: AM
Step：1KHz/10KHz/100KHz
Circuit Description
Refer to the circuit diagram shown on the last page of this document.
The signal received by the antenna first enters the filter network, and the function of the bandpass filter is to ensure that the 3-23MHz signal can enter the source pole following circuit composed of J310, and other signals are attenuated to the greatest extent. The signal is then fed into the TA2003, and there is a mixer inside the TA2003 that mixes the received signal with the PLL local oscillator signal.
The IF frequency is 10.7MHz, and the signal out of TA2003 is sent to 10.7MHz ceramic filter, whose function is to filter out the irrelevant signal generated by mixing, and then it is amplified by 2N2222, after filtering, the signal is sent to TA7613 for further IF amplification, detection, and audio amplify. The TA7613 completes the detection of AM signals and has an internal audio power amplifier that can directly drive speakers.
Component Selection
All capacitors less than 1000pF are high-frequency ceramics, capacitors greater than 1uF are aluminum electrolytic capacitors, and all resistors are 1/4W 5% fixed resistors.
Soldering Reminder
The display board needs to be welded with digital LED and connector plug-in by itself. After installation, the following figure is shown
Assembly and Adjustment
Test all transistors, resistors and capacitors with a multimeter before installing allcomponents. Then install all components against the circuit diagram and the markings on the PCB board.

Produktdetails in Bildern

Produkteigenschaften

Markenname

NONE

Ursprung

CN (Herkunft)

Hochbetriebenes Chemikalienunternehmen

Keine

Halbfertigprodukt

Ja

Heimwerkerbedarf

elektrisch

Elektronisch

Nein

Typ

R10 shortwave PLL receiver

Ausgangsspannung

short-wave broadcast signals

Datenaufzeichnung

Nein

Art

Short wave broadcasting

Zertifizierung

NONE

Modellnummer

AM radio shortwave receiver

Größe

AM broadcasting

R10 shortwave PLL receiver

AM radio shortwave receiver

broadcast signals

3-23MHZ