I have a 705 and started off with the SotaBeams Tri-bander linked dipole. This works very well and needs no tuner. The downside is it is slow to change bands and the number of bands is limited. I now mostly use a Bandspringer end fed random wire from the same company and an ICOM AH-705 tuner. This is brilliant for rapidly changing bands and covers 10m to 80m. The AH-705 will work with a much shorter wire if you don’t want 80m or 60m. It isn’t the smallest ATU available but it works very well.
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