I've been doing a lot of reading and I haven't come across anything that talks about VCO locking. How does Allstar lock the frequency of each transmitter? Thank you.
it doestn't. asterisk is a form of repeater controller. VCO locking is a function of the radio. The two have nothing yo do with each other in determining the frequency you're operating on. -- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings...
On Feb 25, 2014, at 1:28, "Wayne" <wayne@anywherehost.net> wrote:
I’ve been doing a lot of reading and I haven’t come across anything that talks about VCO locking. How does Allstar lock the frequency of each transmitter?
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It doesn't. The frequencies for each transmitter is controlled by the repeater radio. Each server associated with the transmitter, and corresponding nodes, control the interface to the radio, and provide linking to other nodes as downloaded by Asterisk/app_rpt on the sever hosting the node, as received from Allstarlink.org. The Allstar site just records the frequency associated with each node, as entered at Allstarlink.org by the node "owner." Sent from iPad On Feb 24, 2014, at 10:28 PM, "Wayne" <wayne@anywherehost.net> wrote:
I’ve been doing a lot of reading and I haven’t come across anything that talks about VCO locking. How does Allstar lock the frequency of each transmitter?
Thank you. _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
To unsubscribe from this list please visit http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
If you talking about synchronizing transmitters for simulcast, then that is done with an external reference oscillator (instead of the transmitter's internal ref Oscillator) at each site and that oscillator is locked by a GPS receiver to achieve very accurate frequency. Typically the external oscillator operates at some frequency like 16, 12.5 or 10 MHz but can be locked the GPS that puts out a 1 pps signal. Perhaps others can elaborate further. Jon VA3RQ On 2/25/2014 1:28 AM, Wayne wrote:
I've been doing a lot of reading and I haven't come across anything that talks about VCO locking. How does Allstar lock the frequency of each transmitter?
Thank you.
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participants (4)
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Bryan D. Boyle -
Jon Rorke -
kk6ecm -
Wayne