I'll sift through this bin a bit harder next time. So this shines a bit of a spotlight on old school mobile phone car kits as a potential source for wide band antennas, something I never considered before as I thought they were all based solely around 850mHz.

Even though PCB antennas are not the most efficient, this returned S11 figures approaching -28dB with it's shortened cable, so there's definite potential. I plan on testing it with 1.3gHz video, being so thin it could be fitted easily into a vertical stabiliser. I only purchased it for the SMA fitted 5m of coax, not realising an antenna was even in the package.

It is a glass mounted adhesive paddle stick design, and well worth doing some more testing with. On the VNA it seems to achieve the impossible, a VSWR under 1.2:1 across that entire spectrum. I also found another new, but unknown at the time Quad-band Wired Cellular Antenna that covers 850-2.4gHz. These collinear antennas may be worth consideration if you have problematic interference in your flying area, their tight beam can be tilted skyward creating a high gain elliptical disk pattern, and giving good rejection below at ground level, the gain also having range benefits. The best part was, I had zero interference for this trip, a first in almost a year. Cost Picture KINGKONG HEX 300 FPV Plug and Play 99. These antennas typically have an E-Plane (vertical) beam height of 17 degrees, so it can be tight with altitude, but I found it very workable, even off axis it had 100% RSSI at 5km pretty much all the time when sitting vertical. Diatone Reptile 500 Quadcopter Drone Frame 21.00 Versa copter frame 280 quad Frame 59.00 Phoenix Flight Gear Xtreme CarbonSpyder Foldable FPV Micro Frame 80.00 ELECTROHUB Y6 KIT 85.00 Tarot 680PRO HexaCopter Folding Frame 3K Carbon (KIT) 119.00 Frames.

I tested it with a 250mW lora equipped plane out to around 14km (only headwind limited) and it still managed RSSI of 95-100% at that range which is about proportional to the gain, however the pattern was very flight friendly, using the camera tripod, I simply tilted it back slightly for optimum signal level. One was the collinear 2.4gHz 8.4dBi vertical shown. Of new antennas, mostly CDMA whips covering 850-900mHz, and I found a few interesting ones for just a couple of dollars. Someone must have gone out of business and dumped a stack I found an interesting score at the local recycling centre a few days back.

Aio drone station diy