It is generally sufficient to 'loosely couple' the modulator to the receiver. The output is fed through a pi attenuator so that the modulator can feed into any load without affecting the modulation characteristics.
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525~1605kHz Medium Wave AM Amplitude Modulation Radio Transmitter DIY Circuit Board Ore radio Mother Board 6V
Aliexpress UK
Frequency range: 525~1605kHz. 1 x Transmitter. Health & Beauty. 7" Flexible Air Tyre Valve Extension Adaptor Motorcycle Car Tire Stem Extender u. 1 x 3.5mm Headphone Signal Cable. L298N Dual H Bridge Drive Module DC Stepper Motor Smart Car Robot For Arduino g.
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SI4732 Mini Pocket Radio LSB USB AM FM FM/AM Radio 1.9inch IPS Screen HF SW MW VHF Radio Portable Radio DSP Radio
Aliexpress UK
The output power is nominally 5 milliwatts into 50 ohms. The range is generally only a few feet depending on what is used as an antenna. This is not intended to be a long range radio transmitter. The output is fed through a pi attenuator so that the modulator can feed into any load without affecting the modulation characteristics.
eBay
GP-1 Outdoor FM Radio Antenna 87MHZ-108MHZ Omnidirectional For Transmitter Maximum 50W Broadcast Receiver Antennas Amplifier New
Aliexpress UK
The output power is nominally 5 milliwatts into 50 ohms. The range is generally only a few feet depending on what is used as an antenna. This is not intended to be a long range radio transmitter. The output is fed through a pi attenuator so that the modulator can feed into any load without affecting the modulation characteristics.
eBay
SI4732 0.5-108mhz Pocket Mini Radio LSB USB AM FM FM/AM Radio with 2pcs Antenna All Band Radio Receiver HF SW MW VHF Radio
Aliexpress UK
1 x Transmitter. 1 x 3.5mm Headphone Signal Cable. We usually respond within 24 hours.
eBay
SI4732 0.5-108mhz Portable Radio LSB USB AM FM FM/AM Radio 1.9inch IPS Screen All Band Radio Receiver HF SW MW VHF Radio
Aliexpress UK
The output power is nominally 5 milliwatts into 50 ohms. The range is generally only a few feet depending on what is used as an antenna. This is not intended to be a long range radio transmitter. The output is fed through a pi attenuator so that the modulator can feed into any load without affecting the modulation characteristics.
eBay
SI4732 0.5-108mhz LSB USB AM FM FM/AM Radio 1.9inch IPS Screen Mini Pocket Radio with Antenna HF SW MW VHF Radio Portable Radio
Aliexpress UK
Frequency range: 525~1605kHz. 1 x Transmitter. 1 x 3.5mm Headphone Signal Cable. We believe communication can work out anything. We'd get back to you A.S.A.P. We're engaged in DJI accessories, console & arcade parts, military models and so on.
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SI4732 0.5-108mhz Pocket Mini Radio LSB USB AM FM All Band Radio Receiver with 2pcs Antenna FM/AM Radio HF SW MW VHF Radio
Aliexpress UK
Transmit Power: Adjustable 20mW - 500mW (usable within 5-10m). 1 x Module. Audio Input: 3.5mm both-end (on-board). Audio Source: CD, desktop, cell phone, etc. Users may also refer to online installation tutorials for self-installation.
eBay
SI4732 0.5-108mhz LSB USB AM FM FM/AM Radio 1.9inch IPS Screen HF SW MW VHF Radio Portable Radio All Band Radio Receiver
Aliexpress UK