NEXEDGE vs TURBO

Was wondering if anyone has any field testing with both and how they compare to each other?

I use both Mototrbo and Nexedge everyday.
Voice quality goes to Mototrbo
Nexedge portables really like to de-sense each other
Would much rather use CPS vs KPG111d
Nexedge wins hands down in multi-site systems until Mototrbo Connect Plus is released
Mototrbo repeaters running Capacity Plus can handle 4x what NXDN can
Nexedge is cheaper!

Kenwood NEXEDGE, Icom IDAS, and NXDN are all more or less identical terms for the same CAI. I will use NXDN because it is easier to type.

Bandwidth: NXDN is inherantly a true 6.25 bandwidth. TURBO is 12,5 but by using TDMA time sharing infrastructure has two voice channels per 12.5 to acheive equivelent spectrum useage, except in simplex where only one voice channel is used per 12.5. There may be future 'enhancements' that allow one entire voice transmission to be contained in a 6.25 envelope but it will require an overhaul of their hardware as well. The 'equivelancy' term was added to future FCC standards by Motorola over the objections of the rest of the industry, and fueled by lobbying and campaign contributions, all according to Motorola's business model.

Voice quality: Highly subjective to the listener's ear. Remember that the purpose of the exercise is to transmit intelligible voice, not High-Fi music. Diffrerent persons transmitting, or the simple amount of metallic dust stuck to the speaker cone will make one sound better than the other. Overall a wash, however both are better than the latest incarnations of P25 and exponentially better than analog.

Data: Different, but effectivly the same.

Multi-site trunking: Built into NXDN from the start, including OTAR. Basically, you slide in a card and turn it on in software. TURBO 'enhancements' are in the works, but not on the street yet.

Availability: Kenwood and Icom developed NXDN, along with others. Equipment is available from them plus Ritron, Relm/BK, and others, with more on the way. Competition will set pricing and drive features within the NXDN standard. Motorola is on record saying it wouldn't work, and is trying to erase their previous statements. TURBO is proprietary Motorola. Equipment will only be available from Motorola for the next 15 years. Features and enhancements are tightly controlled and only available from Motorola. Support is controlled by Motorola. Pricing is controlled by Motorola, which according to their business model will be higher simply because they are Motorola, and therefore superior.

Which is 'better"? NXDN is available from many sources, is 6.25 out of the box, and sounds very good. TURBO is typical proprietary Motorola, and may slide under the 6.25 wire by playing the 'equivelancy' card. Free enhancements do not fit Motorola's traditional business model. Bias towards one particular brand will make all others pale in comparison.

Bottom line? It is a simple choice between a proprietary single source product, or an open standard with multiple sources. __________________
Public Safety Communications Consultant and Technician, Firefighter / COML, Interoperability Crusader and Slayer of Dragons (aka Proprietary Systems)

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