ADMs (was Re: [Repeater-Builder] Re: Commercial Trunking repeater)

2007-02-03 Thread no6b
At 2/2/2007 21:24, you wrote: >Skip, > >Interesting you bring up that idea. > >I've had success with an initial CTCSS induced audio delay, ramped back >to zero, using the PT2399 controlled by a DS1803. I use it in the MP100 >controllers on a multi hop link system. Talking from one end of th

ADMs (was Re: [Repeater-Builder] Re: Commercial Trunking repeater)

2007-02-04 Thread skipp025
Hi Steve, Some of us use audio delays to allow users to access (& link to) trunking systems with minimal delay and reduce the lost first word in conventional systems. I remember the glory days of paging... mid to late 1980's and then came on cell phones big time... cheers, skipp > "Steve

Re: ADMs (was Re: [Repeater-Builder] Re: Commercial Trunking repeater)

2007-02-03 Thread Steve Bosshard (NU5D)
Not sure how this got from commercial trunking repeaters to silence compression, but in the last days of tone and voice radio paging, silence compression, and digital reduction were very big items - seems like BBL. Freeman, Glenayre and Zetron were big players in the game - ancient history. sb