Maxtrac Audio Level | Audio-Digital.net

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Variations in MaxTrac Receive Audio Level

https://www.repeater-builder.com/motorola/maxtrac/maxtrac-rx-audio-level.html

I begin with the MaxTrac's audio stages 1 through 3. Here is the same circuitry from the Radius manual. Now here's the rest of the MaxTrac's audio stages 4 through 6. And finally the rest of the Radius audio stages 4 through 6. I used the same input signal as …

Getting Discriminator (Flat) Audio Out of a MaxTrac 5-pin ...

https://www.repeater-builder.com/motorola/maxtrac/maxtrac-discr-audio.html

MHz MaxTrac radios will directly tune 935 MHz, however as I found out, not all MaxTracs are created equal. The computer programs that monitor and decode these signals need discriminator (or flat) audio. Only those radios with a 16-pin accessory jack can be configured to provide a discriminator audio output. Radios that have 5-pin accessory

The Definitive Guide to the 16 pin MaxTrac series Option ...

https://www.repeater-builder.com/motorola/maxtrac/maxtrac-option-plug.html

from 300 to 3000 Hz. In other words, the audio entering at this point is pre-empahsized in the audio chain. Since this pin is paralleled with mic jack, if a source other than a microphone is connected to this input, it must not load down the micorphone - don't provide less than

MaxTrac 100 /MaxTrac 300TM Mobile Radios

https://sfdem.org/sites/default/files/FileCenter/Documents/2280-Motorola%20Maxtrac%20100-300%20%20User%20Manual.pdf

MaxTrac 300™, 900MHz Features .....4 Signalling Types ........................................................................................5 MaxTrac 100/300 Operation ....................................................................6

Interfacing MaxTrac Mobile Radios to Repeater Controllers

https://www.repeater-builder.com/motorola/maxtrac/maxtrac-rptr-int.html

The handset audio output (pin 8) will run around 670mV on noise on a VHF/UHF/800 MHz MaxTrac, then it's about 600mV per 1 kHz of deviation. This level is independent of the setting of the volume control. De-emphasis is always applied to handset audio. On 900 MHz radios, noise runs about 640mV, then it's about 630mV per 1 kHz of deviation.

Replacing a Spectra TAC Micor Receiver with a MaxTrac Radio

https://www.repeater-builder.com/motorola/spectra-tac/stac-max.html

The Micor audio level was around 1.5 Vpp when injected with a 1 kHz tone at 3 kHz deviation. The MaxTrac was about 1.2 to 1.4 Vpp, however, a Radius mobile was a bit lower at 1.1 Vpp; not enough to make much difference. I have heard that some MaxTrac receive levels are …

MaxTrac Leveling Kits - MaxTracStore.com

https://maxtracstore.com/maxtrac-leveling-kits/

MaxTrac not only meets, but exceeds customer expectations, and delivers absolute satisfaction and peace-of-mind. MaxTrac level kits are available for almost all of the popular truck & SUV models, from Chevy Silverado, Dodge RAM 1500 2500 3500, GMC Sierra, Toyota Tundra & Tacoma, Nissan Frontier & Titan as well as many other vehicles.

Interfacing MaxTrac to Repeater Controllers

https://www.qsl.net/kb8qeu/MaxTrac_GM300/MaxTrac_Repeater_Interfacing_101.html

Maxtrac and Radius Mobiles - BatLabs

http://www.batlabs.com/maxrad.html

The Maxtrac/Radius Series are 9600 baud packet capable. They do need a minor modification though. For RX, its no big deal, just take RX audio from PIN 11 of the Accessory Connector and swing JU551 to the (A) position (Flat RX Unmuted). For TX audio, you will have to run a jumper to the junction of R223, C228, R222 on the RF board to inject the data (if applicable you may need …

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