# Mobile-Whip: A Compact Battery Powered Mini-Whip Style Active HF Antenna for Handhelds and SDRs

Thank you to RTL-SDR.COM reader Ernie (NH7L), who wrote in and wanted to share news about the “Mobile-Whip” antenna, an open-source active receive antenna from GitHub user skuep. The design is based on the well-known PA0RDT Mini-Whip, but it is built for portable use. It runs from a single 18650 lithium cell with an onboard USB charger, or from 5V USB, the 4.5V bias tee on the RTL-SDR Blog V4, or a standard 12-15V Mini-Whip bias tee. It uses an ultra-low input capacitance LTC6268 op-amp instead of a JFET, draws about 20 mA, and is only 200 mm long. That makes it small enough to mount direc

https://www.rtl-sdr.com/mobile-whip-a-compact-battery-powered-mini-whip-style-active-hf-antenna-for-handhelds-and-sdrs/

Image: https://www.rtl-sdr.com/wp-content/uploads/2026/10/mobile-whip-combined-863x1024.jpg

---

Canonical URL: https://qwibbit.com/q17225

Created: 2026-10-23T03:53:59.376224+00:00

Last edited: 2026-10-23T03:53:59.376224+00:00

Board: 3

Origin: Syndicated

Original source: https://www.rtl-sdr.com/mobile-whip-a-compact-battery-powered-mini-whip-style-active-hf-antenna-for-handhelds-and-sdrs/