Elektor AM Transmitter Kit

Description

Build Your Own Vintage Radio Broadcaster

The Elektor AM Transmitter Kit allows streaming audio to vintage AM radio receivers. Based on a Raspberry Pi Pico microcontroller module, the AM Transmitter can transmit on 32 frequencies in the AM band, from 500 kHz up to 1.6 MHz in 32 steps of approx. 35 kHz.

The frequency is selected with a potentiometer and shown on a 0.96" OLED display. A pushbutton allows toggles the transmitting mode between On and Off. The range of the transmitter depends on the antenna. The onboard antenna provides a range of a few centimeters, requiring the AM Transmitter to be placed close to or inside the radio. An external loop antenna (not included) can be connected to increase the range.

The Elektor AM Transmitter Kit comes as a kit of parts that you must solder to the board yourself.

Features

The board is compatible with a Hammond 1593N enclosure (not included).
A 5 VDC power supply with micro-USB connector (e.g., an old phone charger) is needed to power the kit (not included). Current consumption is 100 mA.

The Arduino software (requiring Earle Philhower’s RP2040 Boards Package) for the Elektor AM Transmitter Kit plus more information is available at the Elektor Labs page of this project.

Component List

  • Resistors
    • R1, R4 = 100 Ω
    • R2, R3, R8 = 10 kΩ
    • R5, R6, R9, R10, R11 = 1 kΩ
    • R7 = optional (not included)
    • P1 = potentiometer 100 kΩ, linear
  • Capacitors
    • C1 = 22 µF 16V
    • C2, C4 = 10 nF
    • C3 = 150 pF
  • Miscellaneous
    • K1 = 4×1 pin socket
    • K2, K3 = 3.5 mm socket
    • Raspberry Pi Pico
    • pushbutton, angle mount
    • 0.96" monochrome I²C OLED display
    • PCB 150292-1
Product form

Build Your Own Vintage Radio Broadcaster The Elektor AM Transmitter Kit allows streaming audio to vintage AM radio receivers. Based... Read more

€ 34,95 € 29,95 (incl. VAT)
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      Details

      SKU: 21221
      EAN: 7442105135110

      Description

      Build Your Own Vintage Radio Broadcaster

      The Elektor AM Transmitter Kit allows streaming audio to vintage AM radio receivers. Based on a Raspberry Pi Pico microcontroller module, the AM Transmitter can transmit on 32 frequencies in the AM band, from 500 kHz up to 1.6 MHz in 32 steps of approx. 35 kHz.

      The frequency is selected with a potentiometer and shown on a 0.96" OLED display. A pushbutton allows toggles the transmitting mode between On and Off. The range of the transmitter depends on the antenna. The onboard antenna provides a range of a few centimeters, requiring the AM Transmitter to be placed close to or inside the radio. An external loop antenna (not included) can be connected to increase the range.

      The Elektor AM Transmitter Kit comes as a kit of parts that you must solder to the board yourself.

      Features

      The board is compatible with a Hammond 1593N enclosure (not included).
      A 5 VDC power supply with micro-USB connector (e.g., an old phone charger) is needed to power the kit (not included). Current consumption is 100 mA.

      The Arduino software (requiring Earle Philhower’s RP2040 Boards Package) for the Elektor AM Transmitter Kit plus more information is available at the Elektor Labs page of this project.

      Component List

      • Resistors
        • R1, R4 = 100 Ω
        • R2, R3, R8 = 10 kΩ
        • R5, R6, R9, R10, R11 = 1 kΩ
        • R7 = optional (not included)
        • P1 = potentiometer 100 kΩ, linear
      • Capacitors
        • C1 = 22 µF 16V
        • C2, C4 = 10 nF
        • C3 = 150 pF
      • Miscellaneous
        • K1 = 4×1 pin socket
        • K2, K3 = 3.5 mm socket
        • Raspberry Pi Pico
        • pushbutton, angle mount
        • 0.96" monochrome I²C OLED display
        • PCB 150292-1

      Customer Reviews

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      R
      Rudolf F.
      Nettes Spielzeug

      Der Bausatz funkioniert.
      Das Layout ist nicht so toll geworden. Zwei von drei keramischen Kondensatoren haben 3 Löcher, um 2,5 bzw. 5 mm Raster Bauteile verwenden zu können.
      Warum nicht auch bei C3?
      Denn geliefert werden allle 3 Cs mit 5mm Raster.
      Es hätte ein Jumper auch nicht geschadet, um die integrierte Antenne anschliessen zu können, statt löten zu müssen.

      Ich habe die Software verbessert, denn im AM Bereich ist in Europa das 9 kHz-Kanalraster üblich. Das funkioniert auch viel besser, denn wenn man 128 Schritte des ADC verwendet, geht das hervorragend auf und man kann von 504 - 1647 kHz sauber durchstimmen. Damit kann man gleich die Frequenzgrenzen des Empfängers testen.

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