I use the PTT from KX2 and also the “transverter signal” which I programmed for 2 m and which is from an output of the Elecraft KXIO2. I do not use an attenuator, because the lowest output power of 100 mW in transverter mode can be configured by the KX2 and is sufficient for the transverter. This operation is absolutely safe with this configuration, even from misoperation. My transverter has one VHF and one HF output. With this configuration it switches on automatically as soon as I select the 2m band on the KX2, otherwise the HF output is active.
73, Peter - HB9PJT
