@Mikeam
I'm a new guy to all of this GMRS stuff, but here's why the KG-1000g or any other non-handheld GMRS can't transmit on channels 8 - 14:
"The popular answer provided in these venues commonly focuses on the wattage limitation imposed by the FCC on these channels. The typical line of reasoning is that these channels have a one half watt transmit limit, and high powered mobile radios simply can't reduce their power to such a low level, so therefore they can't transmit on those channels legally. While the wattage theory does make some sense, and the inability to go below one watt may indeed be the case with some mobile radios, this answer is not actually correct.
The real reason can be easily found within the FCC rules for GMRS. Specifically, the rule in Part 95, Subpart E which limits the frequencies commonly assigned to channels 8-14 to hand-held radios only. Here is the applicable section (from § 95.1763 GMRS channels):
(d) 467 MHz interstitial channels. Only hand-held portable units may transmit on these 7 channels. The channel center frequencies are: 467.5675, 467.5875, 467.6125, 467.6375, 467.6625, 467.6875, and 467.7125 MHz.
Those channel center frequencies are the seven frequencies assigned to GMRS channels 8-14.
In other words, only handheld GMRS radios can transmit on channels 8-14 because, well, you can only transmit on channels 8-14 with a handheld GMRS radio.
Yep, because the FCC said so. That's all it is. And there you go."