can anybody put me in contact with someone who can do a proper alignment on an astro spectra for P25 operation?
kt
looking for someone who can do a P25 Alignment
Moderator: Queue Moderator
looking for someone who can do a P25 Alignment
Those who live by the sword get shot by those who don't!
-
Tom in D.C.
- Posts: 3859
- Joined: Tue Sep 04, 2001 4:00 pm
- What radios do you own?: Progreso soup can with CRT
Re: looking for someone who can do a P25 Alignment
It would help some if you stated where you're located.
Tom in D.C.
In 1920, the U.S. Post Office Department ruled
that children may not be sent by parcel post.
In 1920, the U.S. Post Office Department ruled
that children may not be sent by parcel post.
Re: looking for someone who can do a P25 Alignment
Tom. KT2728 is in Oklahoma...Tom in D.C. wrote:It would help some if you stated where you're located.
KT2728,
How is the radio's modulation on analog channels? The P25 modulation should follow the analog modulation and is not separately adjustable.
Re: looking for someone who can do a P25 Alignment
Tom, i am in SW oklahoma.
Will, as far as i can tell the analog modulation is fine i can tx and rx with no issues. i do not have a service monitor of any kind.
Will, as far as i can tell the analog modulation is fine i can tx and rx with no issues. i do not have a service monitor of any kind.
Those who live by the sword get shot by those who don't!
Re: looking for someone who can do a P25 Alignment
Anyone with a monitor should be able to do it, all the tuning is done in analog mode. 2.83KHz deviation is the magical number for compensation
Re: looking for someone who can do a P25 Alignment
If you go into the test mode and transmit, the tone should be clear and not distorted, the 'release' swak ( P25 turnoff) should be clear digital sound on a receiver.
If not, I will be glad to align it to factory specifications.
I have seen many come thru here with the alignment values WAY off. The analog TX may sound OK but the P25 is distorted.
If not, I will be glad to align it to factory specifications.
I have seen many come thru here with the alignment values WAY off. The analog TX may sound OK but the P25 is distorted.
-
motorola_otaku
- Posts: 1854
- Joined: Tue Jan 13, 2004 7:03 am
Re: looking for someone who can do a P25 Alignment
+1escomm wrote:Anyone with a monitor should be able to do it, all the tuning is done in analog mode. 2.83KHz deviation is the magical number for compensation
Any instrument capable of accurately measuring FM deviation and frequency down to 1 Hz can be used to align Astro Spectras (and Sabers too.) You don't even need an external audio generator; everything's generated in the radio for you.