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Day archives: June 2nd, 2023

Multiband Half wave end fed antenna

EFHW ANTENNA

Multiband Half wave end fed antenna The end fed half wave antenna is an attractive option for many radio amateurs as it is able to provide multiband operation without the use of traps or stubs whilst occupying a minimum amount of space. A broad-band matching network is typically used to transform the high impedance of …

DIY Programming cable for a Motorola GM 300 series two-way radio

gm300

DIY Programming cable for a Motorola GM 300 series two-way radio To make a DIY programming cable for a Motorola GM300, you will need the following materials: A USB-TTL adapter An RJ45 Ethernet connector A standard silicon signal diode, such as the 1N4148 An Ethernet cable. Once you have gathered your materials, follow these steps …