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How to tell the bandwidth of an ASTRO conventional channel?
Posted: Tue Apr 26, 2011 1:05 pm
by w2sjw
Guys,
I have a few jurisdictions near me that use ASTRO conventional for PD operation. Is there any way to tell whether the channel should be in 2.5k or 5k bandwidth mode? Is it something I could tell by looking at the emission designators in their licenses?
Re: How to tell the bandwidth of an ASTRO conventional chann
Posted: Tue Apr 26, 2011 1:31 pm
by escomm
I'm pretty sure C4FM is 12.5KHz by default
Re: How to tell the bandwidth of an ASTRO conventional chann
Posted: Tue Apr 26, 2011 1:43 pm
by w2sjw
Jeff,
Thanks for the quick reply - I was confused with the fact the radio still lets you set it at 2.5k or 5k, regardless of the fact that the channel has been set to ASTRO.
Re: How to tell the bandwidth of an ASTRO conventional chann
Posted: Tue Apr 26, 2011 7:02 pm
by Tom in D.C.
Deleted
Re: How to tell the bandwidth of an ASTRO conventional chann
Posted: Wed Apr 27, 2011 3:28 am
by w2sjw
Thanks guys! Luckily, I only have 4 channels that need to be corrected...

Re: How to tell the bandwidth of an ASTRO conventional chann
Posted: Wed Apr 27, 2011 9:24 pm
by JohnG
The deviation in P25 mode is always 2.83 KHz regardless of what the deviation is set to. The 2.5 or 5 KHz setting only applies when the mode is analog or mixed mode.
John
Re: How to tell the bandwidth of an ASTRO conventional chann
Posted: Thu Apr 28, 2011 10:32 am
by jmr061
I will 2nd this in that the setting only applies to analog. P25 does not change.
Jason
JohnG wrote:The deviation in P25 mode is always 2.83 KHz regardless of what the deviation is set to. The 2.5 or 5 KHz setting only applies when the mode is analog or mixed mode.
John