Oh yeah, I forgot to add one more thing.
It all has to do with fidelity. Digital by nature is very monotone, that's why you have a hard time distinguishing different users by their voice. There is no way I will ever agree that any digital from any radio high end or not, will sound as good as analog DFQ.
I'll agree to disagree. My work makes me use digital by the best of brands, I've yet to have this happen to me.
And if the rules are changed to allow digital, that's irrelevant.
100% false. You can use a Baofeng UV-5R to tell whether a DMR or other digital radio is transmitting, even if it can't decode the digital audio.
That's not a digital-specific issue. Multiple transmitters of any kind in close proximity can interfere with each other if not configured correctly, regardless of whether they are digital or analog. And while there are a few PL tones that can false detect on digital signals, there are plenty that don't, and false detection not an issue at all with DCS codes. So that argument is a total red herring.
100% false. Coordination issues have nothing to do with digital or analog. And doubling the number of usable channels in a given bandwidth has obvious benefits for coordination (more options available for mutual non-interference).
Another false argument. GPS pings and text messages take less time to transmit than the equivalent voice transmissions, on channels taking up half the bandwidth of analog. So that's a net reduction in bandwidth utilization, and not an increase.
Yet another 100% false statement. The capture effect is based on the FM signal being stronger than the interfering signal, and has nothing whatsoever to do with whether the interfering signal is an unmodulated carrier, a modulated FM voice transmission, or some format of digital.
You and I could tell, but the average GMRS user will not. Stop talking like a majority of GMRS users are radio savy (enough to be scary, like yourself) and visit the RR forums.
It's a very common problem. What planet do you live on? Do you not follow the problems with part 90? I should know, I have to deal with it on a daily basis. You probably do not. Who do you think is going to have to hear about all these complaints when people's repeaters start keying up?
Huh? Coordination is just that, coordination. That's why all other radio services have them. In the part 90 spectrum DMR caused all kinds off issues with licenses close in frequency due to spurious emissions of the the transmitter turning on/off rapidly and people running zero filtering. The only way to combat this was with coordination of repeaters, or at least try. I'm not sure you understand any of this.
You're adding features, this isn't a false argument.
Yes it does, the capture ratio of a offending digital signal at full modulation will overpower a analog signal, this is due to the limiter in most receivers.
So, I gotta buy ANOTHER radio, EH?!?!?!?!?
You mean I can hear ALL digital transmissions with my P25 radio?!?! Well, shut my mouth, we have INTEROPERABILITY!!!!!!
To a system that uses half the bandwidth of analog, so yes it is.
This is totally backwards. An FM receiver is most likely to capture on an unmodulated carrier, because all of the RF power is concentrated in a single frequency. Spreading out the RF power across the entire channel makes a signal less likely to cause spurious capture.
That's not what I do for a living.
But when you start adding all these features, a once idle GMRS repeater in now transmitting nearly continuous. Seriously, it's not that hard to understand.
Say what? Where are you getting your RF theory from anyways? Hahaha... I'm still laughing 5 mins after reading this.
Well you could have fooled us.
Yeah no. You're fabricating a ridiculous strawman here.
en.wikipedia.org
Diffused across a broader range of frequencies? Huh? I don’t know what country you come from, but in America you’re allowed a certain amount of deviation (+\-) from your center frequency regardless what you modulate. Digital uses this entire space continuously, all the time, and it’ll actually slash over to adjacent channels. It also creates emissions that splatter all over the place unless properly filtered. Having this 100 percent deviation signal 100 percent of the time creates issues in itself. This doesn’t happen with analog because you are not deviating at that level continually unless you’re yelling into the radio. I guess to understand digital to analog interference you would need to know basic RF theory, something you continue to show that you do not.Yeah no. You're fabricating a ridiculous strawman here.
Capture effect - Wikipedia
If those aren't scientific enough for you, try this:
Bottom line: If you want to jam or cause interference to an analog FM receiver, the most effective method is to use an unmodulated carrier so your RF energy is concentrated in a single frequency, thereby causing the receiver to lock on to that frequency and reject the legitimate signal as background noise. Yes, you can jam or interfere with analog FM using a digital signal, but doing so requires considerably more RF power than a simple unmodulated carrier, because your RF power is diffused across a broader range of frequencies.
I'm not confusing anything. I'm trying to explain to you how modulation/deviation works. Nobody said anything about overmodulated carriers, either.
No. You're wrong. Since digital is square waves and usually at full deviation, you will hear the one with the most deviation coming out of your radio speaker over a non modulated analog signal.
TDMA causes trash, due to the continuous re-keying of the transmitter. Every time a transmitter keys, it takes a split second to stabilize, thus producing crap that splashes all over the place.
Sigh, Digital on GMRS will result in the same "Which Standard" argument that occurs with Hams... Digital is a "Red Haring" that is pushed as better for all, when it really Divides all of the users into little tribes that can't communicate with other tribes.
I have solved my digital compatibility issue by staying on analog FM
There are zero square waves in any digitally modulated RF signal. It never happens, or it would be impossible to fit digital RF into any reasonable channel width, and you'd have strong odd harmonics that would destroy the digital signal if you tried to filter them out.
