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These are the most recent forum messages posted by CDGIII:

Re: Which is better CDMA or GSM???
Nov 29, 2004, 10:49 AM
in the Development forum

I thought you were educated, Cain? You keep reminding us of your bonuses!! How do you not know that EV-DV is not only NOT a CDMA "standard", but that it is not even deployed nor will it ever be. How many times do I have to tell you that EVDV is dead, much like the three brain cells you used to have in your head. What we had been comparing was the airlink of GSM to the airlink of ...

Re: Which is better CDMA or GSM???
Nov 29, 2004, 10:40 AM
in the Development forum

CainMarko said: when you take a GSM phone that cost you 100.00 and compare it to a CDMA phone that cost you 100.00,and both phones have equal signal, the GSM phone will out-perform the CDMA phone. If it were only that easy. There are over one million variables that would get lumped into those phrases "equal signal" and "out-perform". That's the difference between engineering and marketting.

Re: A Moto CDMA/AMPS that works? A Nokia worth buying?
Nov 29, 2004, 10:11 AM
in the Rumor Mill forum

Wow!! Someone who still has the 270c. I did all the Reliability Engineering on the 270c. Glad you still like it. Believe it or not, the 270c IS bluetooth capable. When you open the battery door, there is a long strip of connectors just below the battery well itself. That's the bluetooth module connector. I don't know if there are any more 270c bluetooth modules for sale anywhere, but if you can find one, you'll be all set. I'd say ...

Re: "Data-capable"
Nov 29, 2004, 10:04 AM
in the Techs & Trends forum

If it requires an ethernet connection, then no it wouldn't work as none of the manufacturers support an ethernet cable connection to their phone. If you had some sort of junction box that would take a USB input and convert it to an ethernet output, then you could get it to work.

Re: Which is better CDMA or GSM???
Nov 24, 2004, 1:04 PM
in the Development forum

I am leaving the office to test in the field, and I don't plan on wasting my time-off this weekend to debate this. I'll simply point out that you have conveniently missed the point of the topic of discussion, Cain. You have time and time again argued the strengths of UMTS vs the strengths of CDMA. When you talk about time-slotting a wideband CDMA signal, you are specifically talking about UMTS vs CDMA, UMTS being a technology you have ...

Re: Which is better CDMA or GSM???
Nov 24, 2004, 12:58 PM
in the Development forum

Thank you Chris for chiming in. The differences between talking in a quiet room and a loud environment is a function of exactly what Cain and I are debating. It's the differences in the variable-rate "vocoders". What Cain has missed (he must have or he would've been all over me for it) is that, from what I've read about GSM, their vocoders do EXACTLY what you described, but are not as good as gating off loud noise environments. In ...

Re: "Data-capable"
Nov 24, 2004, 11:19 AM
in the Techs & Trends forum

The phone does not require any special software other than the USB drivers. The cable coming out of the phone would be a USB cable. I don't have a lot of experience with wireless routers, so let me ask you. If you had a modem that connected to a PC via a USB port, could you connect a wireless router to that? If you can, then I would say most definitely you could use a wireless router off your ...

Re: Measuring Phone Reception
Nov 24, 2004, 11:12 AM
in the Techs & Trends forum

Exactly!! Very well put, Rich!! If you were to look at a graph of "Receiver Sensitivity" where, in the Y-axis you have Signal Strength, and the X-axis you have frequencies, you could plot two different phones on the same graph. The lines will come out looking VERY wavey as they progress over the x-axis. So where as one phone may perform well at channel 384 (CDMA Cell Band), it may be horrible at channel 630 (CDMA Cell Band). Now throw ...

Re: Measuring Phone Reception
Nov 24, 2004, 11:04 AM
in the Techs & Trends forum

A rack of Spirent equipment to test in a radiation chamber can run you something in the order of $60,000-$120,000, and that's before you've paid for the chamber itself. The chamber itself, albeit I don't know the exact price, is absolutely ridiculous, something in the hundreds of thousands of dollars. All told, you're looking at costs approaching the $1M mark. And if the phone manufacturers choose not to pay you your testing fees for the risk that their results ...

Re: opinions on the new mustang?
Nov 23, 2004, 6:10 PM
in the Shop Talk forum

Not me. I'd rather see new than touched-up to look like old. But then again, I'm still waiting for my hover car, like they promised we'd have by 2000.

Re: war thought
Nov 23, 2004, 6:08 PM
in the Shop Talk forum

That last sentence, by the way, was in no way a negative statement to you, Julie, or anyone else in this thread. Jsut a negative statement to those media people who chose NOT to investigate why there was so much negative feelings from certain countries concerning the war in Iraq.

Re: Measuring Phone Reception
Nov 23, 2004, 5:50 PM
in the Techs & Trends forum

Rich Brome is exactly correct. There are SO MANY factors that weigh in on "good reception" that it is nearly impossible to test for everything. The best way to test the sensitivity of a receiver is to place the handset in an absolute anechoic chamber that completely isolates all outside RF from entering. then connect the handset to a Spirent "super bench" that will test receiver sensitivty on every single channel of all the bands that handset supports. But guess ...

Re: war thought
Nov 23, 2004, 5:27 PM
in the Shop Talk forum

The hope is that as the precision and devastation of "conventional" or non-nuclear weapons will soon surpass the usefulness of something like a nuclear bomb. No, weapons will always be made, but we hope that certain weapons that spells the death of the entire global civilization can be stopped from being produced. The single indicator of the absolute utter failure of the Clinton administration was that he allowed India and Pakistan to develop, test, and produce nuclear weapons. Between that, ...

Re: war thought
Nov 23, 2004, 5:07 PM
in the Shop Talk forum

I'm trying VERY hard not to call you an idiot. I don't think you are an idiot. I do believe that statement is extremely uninformed. What happend with Libya after we invaded Iraq? They announced the suspension of their nuclear weapons programs and will cooperate with the UN to ensure total complaince with the non-proliferation treated they and EVERYONE signed. This was ADMITTING they were making nuclear weapons! What happened with North Korea? Negociations between N. Korea, S. Korea, Japan, China, ...

Re: war thought
Nov 23, 2004, 4:48 PM
in the Shop Talk forum

When I was in, I was responsible for repairing aircraft communications, navigation (Radar), and ECM (Electronic Counter-Measures- aka: the stuff that keeps pilots alive) and I got paid the same amount as the guy flipping burgers all day. That's the nature of the beast I guess. And if I may interject a thought, no there is no decption. Everyone knows that you will get deployed. But that doesn't mean you have to enjoy it. That doesn't mean it's easy. ...

Re: Which is better CDMA or GSM???
Nov 23, 2004, 4:30 PM
in the Development forum

1) Wrong again. 2) If you are so convinced that Warble is a major issue, how do you measure it? How do you quantify it? 3) The full nationwide deployment of EVDO is scheduled for completion by end of year 2005. Given possible schedule slips for unforseen reasons, let's say it's done 1Q06. That's still one year ahead of Cingular. 4) Wrong again, and this time you should know that EVDV is NOT an evolutionary step to EVDO. Most CDMA carriers had ...

Re: (Weird...) Has anyone ever had this happen to them?
Nov 19, 2004, 3:16 PM
in the Verizon Wireless forum

If you leave a voice mail for someone, and that person does not receive your message, in some coverage areas, the network returns your message to you to indicate that it was no successfully delivered. This occurs in Lucent infrastructure (New Jersey, Dallas, etc). The same occurs if you send a text message to someone that never gets delivered.

Re: new reception problems
Nov 19, 2004, 3:14 PM
in the Verizon Wireless forum

RF is not consistent day to day, hour to hour, or even minute to minute. If you live on eht fringe of coverage, the fluctuations in RF vary greatly. It's not CDMA in general, and it may not neccessarilly be a phone issue. It's just that, in ANY wireless network, some people are going to be unfortunate enough to live directly in between two towers. That means the signal is not going to penetrate into your building or house. ...

Re: Motoroal V810 ringtones and speakerphone
Nov 19, 2004, 3:09 PM
in the Tricked Out forum

The Ring Tone selection is kind of tricky to get to. I cna't remember exactly how to get to it. keep trying, you'll find it. And yes, speakerphone, after call is established, hold in the "Ok" key.

Re: Debate: Stubby vs. Internal vs. Extending Antenna????
Nov 19, 2004, 3:02 PM
in the Techs & Trends forum

That is also true.

Re: Debate: Stubby vs. Internal vs. Extending Antenna????
Nov 19, 2004, 3:02 PM
in the Techs & Trends forum

Very nicely summed up.

Re: history of CDMA
Nov 17, 2004, 6:30 PM
in the Shop Talk forum

Try google.

Re: Debate: Stubby vs. Internal vs. Extending Antenna????
Nov 17, 2004, 6:27 PM
in the Techs & Trends forum

In every case, an external antenna is always better. It moves the point of reception away from interference-causing internal components like amplifiers (LNA's), duplexers, and displays. In the case of a flip phone design, it helps if you can raise the tip of the antenna above the open portion of the flip in order to minimize what is known as the "shadowing" effect (the open flip's display blocking 30-40% of the antenna's circular radiation pattern.

Re: WCDMA Question for Rich Brome
Nov 17, 2004, 6:24 PM
in the Techs & Trends forum

No. First, let me start off by saying that it is never easy to switch a network from one technology to another, not even if it's just an evolution of the existing infrastructure. However, given the natrue of spread spectrum technologies, Cingular can explore a whole new methodology for deploying their WCDMA system (UMTS) when in fact it launches. In UMTS, you don't have to plan for having two towers that are located side-by-side NOT using the same RF ...

Re: $6 billion...what now?!
Nov 17, 2004, 10:06 AM
in the Verizon Wireless forum

Actually, on average, it's pretty comparable, except for those poor Nextel suckers. VZW: $51.58 Cingular: $49.78 AWS: $57.10 Sprint: $63.00 Nextel: $72.00 And, as stated above, Cingular has to spend that kind of dough to not only upgrade its own system from 2G TDMA to GSM, but will have to upgrade again to UMTS by, as Cain had mentioned, 2007. It's expensive. But VZW, as mentioned before, is spending it on expanding coverage in order to compete with the new Cingular partnership, as well as ...

Re: WCDMA Question for Rich Brome
Nov 17, 2004, 9:55 AM
in the Techs & Trends forum

I was talking about 1X_RTT. That's how we test maximum throughput, and the typical data rates associated with as best a real-world RF environment as you could ever expect. But if you get any closer to the base of the tower, you'll actually get worse performance due to the azimuth (inclination) of the antennae on the tower itself. Since they are not omnidirectional antennae, they have a "sweet spot" that you have to be away from the base of ...

Re: what's your dream car?
Nov 16, 2004, 4:06 PM
in the Shop Talk forum

I guess that's why it's called a dream car.

Re: GSM Vs. CDMA - Question for CDG on Voice Quality
Nov 16, 2004, 9:42 AM
in the Verizon Wireless forum

I just re-read the original posted question, and looks like I am wrong. I assumed the question was how can you meaasure the differences, and that's where I took the question. sorry to have missed the point of your question, BetterThanJake. I have to run out to the field, but maybe when I get back next week, we can talk some more. Have a great week everybody!! (Dr Nick: "Bye bye, Everybody!!")

Re: GSM Vs. CDMA - Question for CDG on Voice Quality
Nov 16, 2004, 9:38 AM
in the Verizon Wireless forum

The original question was, how do you measure voice quality, not how do you enhance it. And so far, my original point has been well proven throughout this thread. To make a quantitative measurement of voice quality, it is elusive. We have tools that can help us, such as Rho factor, FER in CDMA, BER in TDMA/GSM, but ultimately what you come down to is the human ear. What sounds good to me may not sound good to you. ...

Re: WCDMA Question for Rich Brome
Nov 16, 2004, 9:26 AM
in the Techs & Trends forum

If you're sitting in the middle of the least loaded sector about fifty meters away from the tower, you can get 125-130kbps, but just how likely is that going to occur? Not very.

Re: WCDMA Question for Rich Brome
Nov 15, 2004, 5:22 PM
in the Techs & Trends forum

That's about what 1X_RTT will get.

Re: GSM Vs. CDMA - Question for CDG on Voice Quality
Nov 15, 2004, 5:02 PM
in the Verizon Wireless forum

But if the question is who has the fastest data network, doesn't it make sense to argue what each carrier has now?

Re: WCDMA Question for Rich Brome
Nov 15, 2004, 4:58 PM
in the Techs & Trends forum

And how widely deployed is the EDGE Ericsson system? Is that TMobile?

Re: Which is better CDMA or GSM???
Nov 15, 2004, 4:52 PM
in the Development forum

NEVER did I say that that my opinion matters more. NOT ONCE have I even elluded to that, so once again, wrong. Sorry, but the industry is not debating warble. It's a red-herring. So, Cingular plans to be 3G by 2007. Ok, I can say with confidence that VZW will be in advance planning stages for 4G by the time Cingular's deployment of 3G is complete. My point is that no one yet knows exactly what 4G standard is going to ...

Re: Verizon Phones - Stink
Nov 15, 2004, 4:37 PM
in the General forum

I bet a VZW phone would. I tested specifically those areas. It works fine.

Re: what's your dream car?
Nov 15, 2004, 4:13 PM
in the Shop Talk forum

Wow! I guess I have more elaborate dreams. Ummm...A Ferrari Enzo or a McLaren F1. Pleease don't wake me. I'm driving...

Re: WCDMA Question for Rich Brome
Nov 15, 2004, 4:11 PM
in the Techs & Trends forum

What is the theoretical limit for EDGE?

Re: Verizon Phones - Stink- Cain
Nov 15, 2004, 4:08 PM
in the General forum

Congratulations, and thank you for your response. Your recommendations, are they post Cingular lab testing or post-testing?

Re: Things that annoy me.......
Nov 15, 2004, 3:59 PM
in the Verizon Wireless forum

Answer to #2: Because he's holding the remote. ACtaully #5 is right. US laws say submittal is as good as the post mark.

Re: GSM Vs. CDMA
Nov 15, 2004, 3:53 PM
in the Verizon Wireless forum

Ahh!! Thanks.

(older messages not shown)

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