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Maratrac

This forum is for discussions regarding System Infrastructure and Related Equipment. This includes but is not limited to repeaters, base stations, consoles, voters, Voice over IP, system design and implementation, and other related topics.

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policespeeder
New User
Posts: 1
Joined: Mon Jun 10, 2019 4:53 am

Maratrac

Postby policespeeder » Mon Jun 10, 2019 5:01 am

I am planning to use a Maratrac transmitter on a 6 meter repeater. I need to inject PL from a Comspec encoder and am having issues with finding an appropriate injection point. I need to use other than the built in PL because I need to switch it off during hang time. Any suggestions? Rod/WD7FGX

Jim202
Posts: 3560
Joined: Sun Sep 09, 2001 4:00 pm

Re: Maratrac

Postby Jim202 » Tue Jun 11, 2019 3:56 am

I don't know any repeater that kills the TX PL tone during the hang time. It is normal for a repeater controller to send a Roger beep when the repeater input goes away to let the other users know when the current user has finished transmitting.

Can I ask why your trying to do this killing of the PL during the repeater tail time?

Jim

Karl NVW
Posts: 109
Joined: Wed Sep 03, 2003 7:13 am

Re: Maratrac

Postby Karl NVW » Tue Jun 11, 2019 7:44 pm

Many low-cost 3rd party controllers with internal CTCSS generators DO inhibit the TX PL as soon as the COR signal drops. That's much cheaper than designing their products to meet commercial usage standards, including the turn-off burst sent during the hang time. But also know that the Maratrac is NOT a base station or repeater; it's not even capable of extended duty operation at reduced power output with a cooling fan. Much like trying to use a Yugo for a police patrol vehicle.
Karl - WA8NVW AFA5VB
SHARES + NCS

com501
Posts: 1052
Joined: Fri Nov 02, 2001 4:00 pm
What radios do you own?: Over 50 - All Motorola

Re: Maratrac

Postby com501 » Wed Jun 12, 2019 10:52 am

Use the ComSpec community repeater tone panel, and follow the instructions in one of their app notes. The repeater panel has the native capability to mute user PL's on hang time.

PETNRDX
Posts: 818
Joined: Sun Nov 25, 2001 4:00 pm
What radios do you own?: Too many

Re: Maratrac

Postby PETNRDX » Wed Jun 12, 2019 1:40 pm

I have been using a Maratrac as a 6 m repeater transmitter for years.
Works just fine at 80 watts and a small fan.
Not the same if you try to do in in VHF-HI or UHF.
Better than nothing if you don't have crystals for a Micor TX (which I also use on different sites)
Steve K.

PETNRDX
Posts: 818
Joined: Sun Nov 25, 2001 4:00 pm
What radios do you own?: Too many

Re: Maratrac

Postby PETNRDX » Wed Jun 12, 2019 1:51 pm

Policespeeder I sent you a PM if you wanna' discuss further
Steve K.


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