In the summer of 2018 I contacted Radio Echo Communications about upgrading my M2 log to new GXP’s. Ray W2RE recommended the GXP 11-5 and the 30/40 combo for my mountaintop Colorado location. Antennas arrived within weeks and installed within two days. No missing parts.
The GXP antennas work as expected! What can I say, Im a believer of GXP antennas. Happy customer!