russbrill
Member
What??? You'd better think about that a little longer...….
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New GMRS Band Plan
- Thread starter russbrill
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What??? You'd better think about that a little longer...….
I better think about what? You need to narrowband to increase the allowed power and add external antennas to radios?
bill4long
Member
Meh, GMRS users already have several channels where they can run 50w and external attennas. Your proposal actually steps on FRS users. Would it matter? I don't know, but the current allocation seems to be working just fine, except I would like to see digital. (I suspect Motorola et al have something to do with why the FCC hasn't gone in that direction for GMRS.)
russbrill
Member
Uh, yeah, unless you want to listen to all the simplex traffic triggering your repeater off and on... And 1 thru 7 would get bleed over from the Repeater outputs without Narrow Banding...
russbrill
Member
I never said I understood anything about DMR, I asked a question...
None of the above would happen, any more than it happens now.
russbrill
Member
This idea asks if the Current FCC Part 95E rules should be changed, so yeah, I figured it out.....
russbrill
Member
In the 80s and 90s I owned a multi mountain top UHF repeater business in So Cal and I specialized in low deviation 12.5KHz splinter channels before anyone had ever heard of narrowbanding. My repeaters all had narrow IF filters and I ran reduced deviation to avoid conflicts with the mainline channel users. My 2 watt splinter radios rarely caused a problem 12.5KHz away but over the years I did have to work with a couple of repeater owners either side of me to mitigate interference. In other words, I have a lot of experience with 12.5KHz splinter channels and what works and what doesn't.
Your proposal to run 25 watts on splinter channels is not a good idea as it will more than likely interfere with the mainline repeater inputs. The splinter channels need to stay at low power to avoid interference problems. GMRS users are not known to use top of the line equipment that can actually survive in a narrow band environment without problems. If this silly proposal actually went somewhere, do you want to be known as the guy who F'd up GMRS? Do you really want repeater owners looking for the SOB that helped enact rules that jacked up their repeater inputs?
Uh, uhhhhh, someone please pass the popcorn.
Your proposal to run 25 watts on splinter channels is not a good idea as it will more than likely interfere with the mainline repeater inputs. The splinter channels need to stay at low power to avoid interference problems. GMRS users are not known to use top of the line equipment that can actually survive in a narrow band environment without problems. If this silly proposal actually went somewhere, do you want to be known as the guy who F'd up GMRS? Do you really want repeater owners looking for the SOB that helped enact rules that jacked up their repeater inputs?
Uh, uhhhhh, someone please pass the popcorn.
russbrill
Member
Okay, now we're getting somewhere... That's the feedback I needed, so in your Professional Opinion and Experience could the splinter channels capable of more than 5 watts? Say maybe 10 watts?
Low power on fixed tiny antennas at 12.5KHz spacing from repeater inputs is not currently causing problems. Change anything to higher power or external antennas and things will start to get ugly. There was probably a lot of thought and effort put into the current regulations to avoid problems to repeater inputs. Where is your staff of engineers and communications attorneys helping you make these recommendations?
russbrill
Member
I did leave the ones next to the inputs at 5 watts, so are also talking about the splinters next to the outputs???
You still haven't made a good argument for needing more channels or narrowbanding. Let's start there before you ask more questions.
russbrill
Member
So you recommend 25 KHz input channel spacing at high power levels...
That works great even with marginal equipment and there currently seems to be plenty of channels to satisfy the need.
russbrill
Member
Stand by the frequency is in use
russbrill
Member
Okay, got it.. No changes near the inputs regardless of bandwidth... What about channels 1 thru 7 (output side)???
Going from 2w to 5w? Yes...nobody is going to notice a difference at all. 5w to 25w? You're barely looking at 6dB, or a single S-Unit.
Yes, that's exactly what I am recommending.
Stand by the frequency is in use
Like I said, I have not found a single place where every single channel is in use. Even on a cruise ship, with the heaviest usage I've ever seen, there are channels left.
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