> LTR is good for businesses, contractors, etc, but it does have > a slow(er) channel access time then other formats.
In a good system the difference in access time should not really even be an issue or even noticed by the user. Plus there is no LTR requirement for a non voice control channel repeater, which is a pretty big deal when dealing with limited resources (number of avaible repeaters/channels). A 3 channel trunking system with a control channl repeater has (typical) only two available voice repeaters available for user traffic. [Depends on the trunking format].... but in LTR all three channels of a 3 channel trunking system would be working voice traffic. 2 channel LTR trunking systems are very practical. Other formats... not so good. > If you're looking more towards public safety or 'critical > infrastructure' (basically utilites), you'll want something with > a faster access time. I'm doing all the above with LTR and it works very well. You're talking real world access time measured (most all trunking formats) in hundreds of milliseconds typical. Radios in "most" all trunking formats have to first transpond... > My first recommendation would MPT-1327, next maybe P-25. P-25 > will be much more expensive, but is getting to be more > wide-spread here in N. America. Keywords "much more expensive". Public Safety going to trunking goes for MPT and P-25 because of politics, sales people, some technical items and the fact that they're often spending funny money (grants and tax payer sources) The business side of LMR running LTR, Passport, Motorola and some other consumer LMR products/formats (like Smart-Trunk) has to be very practical (best bang for the buck), lean and mean. I used to think the queue function of MPT-1327 was a big deal, but what some people call the "waste" of a voice repeater / channel doing control channel duty seems not so smart/practical. We found ways to make LTR work very well with the available resources so a queue function is not required. cheers, skipp
