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| Thread ID: 70307 | 2006-06-28 21:15:00 | Non-trunking radio communications | Rutherford (10399) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 466924 | 2006-06-28 21:15:00 | What does "non-trunking" and "trunking" mean with radio communications? On this (www.signalharbor.com) page it says "The first table indicates that a non-trunking scanner, as long as it can tune to the proper frequency, will be able to monitor the audio only from analog sources. Even if a system uses trunking, a non-trunking scanner will be able to pick up the audio on a particular frequency -- but it may be difficult to follow the action since the scanner will not automatically retune during a trunked conversation. However, on lightly loaded trunked systems or during relatively quiet periods this method can work fairly well." and "The second table shows that with a trunk-tracking scanner like the Bearcat BC245XLT or Radio Shack PRO-92, the results are identical to the non-trunking scanner except that systems with a 3600-baud control channel are now automatically followed." Re: last two words, "automatically followed", does this mean the frequency changes, maybe as in cellphone communication? |
Rutherford (10399) | ||
| 466925 | 2006-06-28 22:32:00 | Essentially yes. Pretty sure none of NZ's radio comms are trunked though. |
ninja (1671) | ||
| 466926 | 2006-06-29 02:40:00 | Trunked systems make up a big part of Tait's business. There will be a lot of them in NZ. | Graham L (2) | ||
| 466927 | 2006-06-30 08:45:00 | Trunking is the allocation of a channel (or frequency) from a group of channels. The user is not aware of which channel is being used. Here's an extract from one of the Radio Spectrum Management sites: Trunked dispatched system Trunked dispatched systems use two-frequency repeaters that are computer controlled to allow greater use to be made of available channels. A pool of channels is installed at a repeater site. On making an initial call on a control channel, a mobile is automatically allocated a vacant channel for the call. They have the advantages of short waiting times and scope for many useful enhancements. *** |
Dusty (3931) | ||
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