4O3A – 1 Amp 2 Radios Switch

1A2R switch is a RF and PTT router which routes one amplifier between two radios. Switching is based on the PTT signal using the first one wins principle. You can disable the PTT switching for each radio independently by flipping a switch. Once you connect it, you will not need to rewire the setup and…

Portable TinySA Spectrum Analyzer

AURSINC Portable TinySA Spectrum Analyzer – Updated Frequency Analysis V0.3.1 | Input 100 kHz to 960 MHz MF, HF, VHF UHF | ESD Protection Function and Touchscreen & 2.8 Inch.   [Upgraded Version 2021:ESD Protection Diodes] Tinysa with the latest V0.3.1 firmware, the information displayed is “against ESD-protected”, which means that the diodes are installed,…

How To Charge Li-Ion/LiPo Batteries With A Power Supply

How To Charge Li-Ion/LiPo Batteries With A Power Supply Video by EEVBlog How to safely charge Lithium Ion & Lithium Polymer batteries with a bench power supply, for when you don’t have the correct charger available. WARNING: Take care using PSU’s for charging unprotected cells. A fault in the PSU might overload or short the…

USB Rechargeable AA Batteries

GreenEarth USB Rechargeable AA Batteries | 1450 mAh | Quick Charge USB Charger | 500 Cycles Reusable | NiMH Double A 1.2v (2 Pack) About this item:   ✅ USB RECHARGEABLE BATTERIES – Whether you’re camping or at home, you can simply charge them with a single USB port. No need to buy batteries frequently.…