![]() ![]() This pack typically costs around $30 US and is sometimes even less expensive. ![]() One of the most affordable rechargeable battery packs for the QRPer in your life is the TalentCell Rechargeable 12V 3000mAh Battery Pack. A very affordable Li-Ion rechargeable battery.I also found it to be a relatively quiet antenna, I had it hooked up to a Flex-3000 SDR where it is very easy to compare SNR levels between … ![]() Collinear 1/2 wave J-Pole… The dipole antenna, how industry defines it …The EFHW 80-10 consistently beat these other antennas in all directions and all distances. EFHW HT antenna functions without additional counterpoise Adding 0.05 wavelength wire to EFHW antenna Collinear 5/8 wave J-Pole vs. Here are my experiments and modifications with an EFHW (end-fed half wave) based on the VK4YE design, testing, 80m loading coil, the coax counterpoise, and t. ![]()
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