Jay,
The K2 is ham bands only, but it will tune (and transmit) slightly
outside the ham bands - how far depends on the particular K2. There is
no way to "open it up" further.
The K3 blocks transmit (and receive) in the region of the 1st IF at
8.215 kHz - I forget how wide the guard band really is.
The CB band at 25MHz is also blocked. If you must operate well outside
the ham bands, you may want to install the KBPF3 option because the
stock bandpass filters are peaked in the ham bands and receive will fall
off as you move further away from the ham band edges.
The KX3 can be opened for transmit (except for the CB band) most
anywhere in the RF spectrum.
If you have a valid need to transmit outside the ham bands (MARS
licensee or other), contact K3support to obtain the instructions.
I do not know about the unlocked VHF spectrum.
73,
Don W3FPR
On 4/6/2015 12:37 PM, J wrote:
Can someone furnish the exact "unlocked" or MARS transmit frequency
specifications for the K2, KX3 and K3?
I think some of these radios may have gaps - due to RF filtering, IF, etc.
Also, what about the unlocked transmit specs for VHF in these radios?
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