I have the original Chameleon loop, whichever model that is. I think it is the F-Loop. It works well enough for transmit 20 meters and up. It is terribly inefficient 40 meters and down. Still, I do like it as an all around RX antenna that is very easy to tune and turn to knock out noise. The last reasonable distance contact I remember was to Hawaii two years ago on 20 meters (I was in California). He gave me a 3x3 or 4x4 I cannot remember which. Probably 3x3 as I was using 5W with an 817ND without a mic compressor. I only have the coax version and would like to try the three piece aluminum loop they had which fits my model. I am curious as to the improvement, if any.
I would not purchase an Alpha Antenna product. In addition to what prcguy noted, there are other instances I found regarding Alpha's various antennas that solidified that decision. I am not saying I would never buy an Alpha product, but not until prcguy gives it a positive review first.
Back on topic: If there is a question about the IC-705 that would be in the manual, let me know and I'll dig around. Please note, we will not know the actual TX/RX frequency coverage until the U.S. manual/device is released. ( I can only poorly understand two of the three Japanese writing systems, so give me a bit to reply. )
User Manual: IC-705 | アイコム株式会社
Instruction Manual: IC-705 | アイコム株式会社
Supplement Manual CI-V stuff: IC-705 | アイコム株式会社