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P25 repeaters and mixed mode?

arlo

Member
Premium Subscriber
Joined
Dec 19, 2002
Messages
126
Are P25 repeaters ever programmed to mixed mode and available for either mode?
 

W9WSS

Retired LEO
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Joined
Dec 19, 2002
Messages
991
Location
Westmont, DuPage County, IL USA
I belong to a few Amateur Radio clubs that have repeaters that operate in mixed mode. It's the operator's choice. The only bad thing is that if you are in P25, the analog users cannot use or hear what you're saying unless they have a P25-capable radio. The Motorola Quantar has been a leader in Hams using mixed mode (P25 & analog), but the Quantar is a legacy piece of equipment. Parts are harder to acquire because it isn't supported any longer.
 

vagrant

ker-muhj-uhn
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Joined
Nov 19, 2005
Messages
3,194
Location
California
Yes - There are standalone and linked systems in central, coastal and northern California that run mixed mode.
 

APX8000

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Nov 23, 2004
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4,237
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AES-256 secured
I'd be interested in hearing what the latest some of the ham guys here are using to link the P25 Quantars while keeping the internal repeat audio path.
 
Last edited:

rescue161

KE4FHH
Database Admin
Joined
Jun 5, 2002
Messages
3,636
Location
Hubert, NC
I wish we could network them over the internet, but several sites don't have internet access, so we set up a link radio connected via v.24. Works like a champ.
 

Project25_MASTR

Millennial Graying OBT Guy
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Jun 16, 2013
Messages
4,212
Location
Texas
There is an existing solution that allows Quantar's V.24 to be converted DFSI. There is also an active project that is developing an alternate method to accomplish the same function specifically to allow Quantars to be integrated with DVM Project which will allow DFSI control of Quantars and integration via DVM Project's controller (even trunking).
 

mcjones2013

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Sep 15, 2012
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723
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Sacramento, CA
Some of the agencies in my area (Sacramento Valley) that aren’t on a trunking system used mixed-mode on their conventional repeaters. Analog for day-to-day operations, and digital for running record checks encrypted, or if not encryption just to have a clearer voice when on the fringe of coverage. All on the same frequency, and knob position, they just use the concentric switch to go back and fourth.
 

TampaTyron

Beep Boop, Beep Boop
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Joined
Feb 1, 2010
Messages
1,093
Location
Phoenix, AZ
I maintain several mixed mode P25/analog systems. They use RF Technologies/Icom Eclipse2 repeaters (inherited the customers/systems from a competitor that went out of business). Have several that use onboard voting and with vote scan, makes a very robust system. TT
 

KevinC

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Jan 7, 2001
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Home
I maintain several mixed mode P25/analog systems. They use RF Technologies/Icom Eclipse2 repeaters (inherited the customers/systems from a competitor that went out of business). Have several that use onboard voting and with vote scan, makes a very robust system. TT
In east Texas by any chance?
 

TampaTyron

Beep Boop, Beep Boop
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Feb 1, 2010
Messages
1,093
Location
Phoenix, AZ
No, but I do know those guys. The same guys who set up my system set up that system....... TT.
 

TampaTyron

Beep Boop, Beep Boop
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Joined
Feb 1, 2010
Messages
1,093
Location
Phoenix, AZ
It would be nice to find a place where it tells you exactly what to buy, how to hook it up and how to program it for linking Quantars. Like a "Quantar linking for dummies" web site.

But then we would not be able to charge $150/hr to do it for you....... TT
 
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