BC785D Reband

[N2KMB]

Hello Guys Im Wondering what makes the 785D useless with rebanded systems i have the NJSP system in it which is rebanded and its tracking it just like my RS Pro-164

 

[UPMan]

On systems where the new channels fall on the old Nextel spacings, the scanner will not have the correct band plan table required to accurately tune to the voice channel when a channel grant is received. There are some systems where all channels that move down land on commonly allocated channels.

 

[N2KMB]

is there a list of systems that land on commonly allocated channels because i wonder if NJSP did because did my 785D is sync with my 164 which can trunk rebanded systems and i seen to have no problems with it so maybe i lucked out

 

[ka3jjz]

In general, if all freqs have a '5' in the 4th decimal position, you should be OK...it's when one or more of the freqs have a '0' that can cause you to miss a conversation if it happens to land on that channel..Mike

 

[N2KMB]

ahhhh i see thanks to all for the feedback

 

[rpersin]

from what ive been reading rebanding has no effect on p25 systems so that is why your scanner is working. just go to radioreference and get the new frequencys.

 

[N2KMB]

i dont have the card for the 785D cause where i live there is no P25 systems

 

[hiegtx]

from what ive been reading rebanding has no effect on p25 systems so that is why your scanner is working. just go to radioreference and get the new frequencys.

While that is true for later model digital scanners, it is not correct for the 785D (one with the digital card) or the BC250D (the handheld, also presuming a working digital card is installed; I have a 250D). These scanners are unable to trunk track the 9600 baud control channel used by a pure Project 25 system (in other words, a Phase I, FDMA system).

They will work on the mixed mode Motorola Type II systems, where some (or all) of the talkgroups are digital, but the control channel is still a 3600 baud data stream, the same as an analog only Motorola Type II system. However, should the system reband, and some, or all, of the system frequencies have a zero in the fourth decimal place, then the 250D & 785D would not be able to correctly track the system, regardless of whether the system uses analog, digital, or a mixture of both, talkgroups.