n1das
Member
Anybody out there using iDAS yet? If so, VHF? UHF? Conventional or trunked?
I'd love to mess around with the Kenwoods but I'm locked into Icom gear. I've compiled a ton of information about these radios, including the serial data. Do the Kenwoods have PC Control data sent over the serial port (similar to CAT on Ham radios)? It'd be great if Kenwood and Icom radios are compatible on that level -- all my data would then also pertain to Kenwood.
The information is interesting. It appears to indicate that one could split a 25 khz UHF channel into 5 channels if the coordinator would approve it? To be able to build out a county wide system using existing frequency allocations would be a bonus.
Bob
The information is interesting. It appears to indicate that one could split a 25 khz UHF channel into 5 channels if the coordinator would approve it? To be able to build out a county wide system using existing frequency allocations would be a bonus.
Bob
It would be nice if there was a compatible set of FDMA and TDMA technologies.
While two 6.25 kHz channels looks more flexible, it is almost impossible to place them at the same site, or even at nearby sites, so if you want to load a site, TDMA is better. If you want site to site flexibility or simplex efficiency then FDMA is better.
Each company like to present the benefits of their solution and the deficits of the other. Both have both!
True, but it's one of the tightest front ends I ever saw.Many people moving to these narrowband systems have existing channels, so when they split them they are adjacent.
at 6.25 kHz the TX loss would be ridiculous, and there are no filters good enough.
And even a hand tuned mastr II would not be tight enough for 6.25 adjacent.
True, but it's one of the tightest front ends I ever saw.
Ya know, I keep hearing and reading about people "splitting" their 25KC channels, and that's not the way I understand it works. As I understand it, the channel centers are staying the same. Because you have a 25KC license doen't mean you are licensed on the channel centers of any 6.25 channel centers within that 25KC. When someone renews a 25KC license, it comes back 12.5 on the same center, you don't get 2 12.5 channels back for your 25...Am I missing something? I haven't heard of anyone being licensed to 4 6.25 centers within a 25KC license.