Total posts : 45366
Scwis gives some good advice regarding reading and experimenting. To help you a bit I offer that I have bench tested the AM-25 on the low power setting with a load from 0 ohms to open circuit and have not had any damage to the transmitter. Unlike many ham transmitters, the AM-25 does not monitor the load with a fold back circuit, but again this has caused me no problems therefore you should not be afraid to try various antennas.
It doesn’t appear that the recommended coil you mentioned will resonate with the antenna, but it would reduce the reactance seen by the transmitter and will probably be better than no coil.
I hope this information will encourage you to try some experiments.
Thanks for the info on the SWR, it would explain the contradictions from Ramsey’s AM25 manual.
I am going to stick with the 1 1/2 pvc and do some calculating to see what coil I would need for 1590 khz. Later on I plan to experiment with the LDG Z100 ham tuner. My reasoning is that if the tuner is good from 1800 khz, it isn’t such a stretch to 1590.
Thanks for the feedback!