libuff wrote:can someone give me clarification on this subject of DVRS... 
So, if i have an ASTRO repeater which i used to utilize w/o DVRS, and enable DVRS, it will give me the triple beep as if it were a trunking system, but still work the same?
it seems to try to affiliate with the system (as my monitor seems to flicker when it xmits). 
what exactly IS DVRS, and what is its application? when should it be used, when not?
Motorola sells a P25 capable VRS called the 
Digital Vehicular Repeater System. Astro25 portables (and even mobiles, though I'm not sure why) are capable of talking to a DVRS. The radio can be configured to emit a talk permit tone on successfully engaging the DVRS (by which I mean the portable radio has established communications with the DVRS and the DVRS has brought up the mobile radio in the vehicle).
It was discovered that DVRS could be enabled on a channel used to talk to a Quantar digital repeater, and that the radio would assume the Quantar was a DVRS insomuch as it would issue the talk permit tone if able to communicate with the Quantar, and issue a talk deny (bonk) tone if it wasn't. This equals poor man's talk permit tone without the radio being on a trunking system, and since lots of Moto-heads like their radios to emit funny noises just for the hell of it, this was hailed as a great discovery.
The affiliation you're speaking of (that makes your monitor flicker) is the radio checking to see if the DVRS is awake. It periodically sends out 4-5 "ping" packets. Will really wake you up if you left the truck parked out front on a DVRS enabled channel and it makes your subwoofer go nuts (no, I've never done that before, I swear...)
So there, in a somewhat large nutshell, you have it.