Did some antenna testing with an SWR. Recorded the SWR values at both 910 and 915 MHz, and for the antennas that could bend I recorded the value for when it was straight (S) and bent (B). Lower value is better. Found some interesting stuff.
Unfortunately I can’t tell you exactly where I bought most of these, a lot I got from Iffy (Steve said he bought them from china and he suspected they probably weren’t that good, they’re better than expected)
The two I specifically bought from Altavox got mixed in with the rest of them, but I’ll give them the benefit of the doubt and say D and E are probably the ones from Altavox (their tuning looked identical on the graph, even though their SWR values were different). The link to the Altavox antennas are here: https://atlavox.com/products/meshtastic-915mhz-antenna
I believe F is https://store.rokland.com/products/2-5-dbi-sma-male-915-mhz-soft-flexible-whip-antenna-for-t-beam-t-echo-other-lora. I don’t recommend it
H is the stubby antennas that come with the rak wireless devices. Wow they’re so bad.
I wish I knew where I bought G, that one’s pretty great and I love the whip form factor.
I also have a giant antenna but it requires an adapter that I don’t have at the moment. I’ll update that when I have the data
BUY ONE, GET ONE 20% OFF. NO LIMIT (Automatic discount applied at checkout) EACH ANTENNA INCLUDES: (1) - Antenna for Meshtastic US915MHz SMA-M connector)(Optional) - Cable (iPEX1-F to SMA-F, 10cm) w/nut, lock washer & tooth washer Increase your Meshtastic device range by upgrading your antenna. This SMA antenna is
2.5 dBi SMA Male 915 MHz or 868 MHz (choose variant) soft flexible whip antenna is an omni-directional SMA Male dipole antenna with 2.5 dBi peak gain. The antenna is 7.8 inches tall and and can be completely bent as shown in the photo without internal damage. Suitable applications are as a factory replacement antenna I

