Rock Crawler Monster Car 4W 1:16/40MHz with Rechargeable Battery Full Function - Walmart.com
27MHZ/40MHZ/49MHZ 2.4G Remote Control 6V/12V Receiver Universal Radio Transmitter Bluetooth Controller for Toy Cars Dump Truck - AliExpress
Midland LMR 40MHz - 50MHz 110w Low Band Radio 70-052C PAIR | eBay
RC Remote Control 40MHz Circuit PCB Transmitter And Receiver Board Radio System With Antenna Set For Car Truck Toy - AliExpress
Futaba 6XH 6Channel FM 40MHz/ R116FB/ 4xS148/ G154
MFJ-1778M Ham Radio JUNIOR G5RV, 10-40MHZ, 1500W, 52FT - Walmart.com
how do I link a Futaba 2pl 40mhz to a Futaba R152JE??? : r/NitroRC
Sanwa VG400 FM 40mhz 4 Channel Radio Control w/ RX611 Receiver & 3x SRM-102 Servos
EI7GL....A diary of amateur radio activity: 40 MHz
5GHz channel planning | Ubiquiti Community
NI USRP-2942 USRP Software Defined Radio Device (400 MHz ~ 4.4 GHz, 2-Channel, 40MHz RF-Transceiver) | EMIN.COM.MM
Amazon.com: Parts & Accessories 4CH RC Remote Control 27MHz/40Mhz Circuit PCB Transmitter&Receiver Board Radio System 4.5v-6v for Toy car - (Color: 40Mhz) : פאטיו, מדשאה וגינה
Futaba 7CHP 7-Channel PCM Radio with R137HP Receiver (40MHz)
2.4GHz radio is configured to 40MHz channel width, but reports it at only 20MHz · Issue #25 · kaloz/mwlwifi · GitHub