I need help. Discriminator tap

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KafxRadio

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Hello.I have a pro 164 and I want to do the discriminator tap.Can someone help me please?I need help, step by step.
 

ka3jjz

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Agreed. Depending on what you are trying to do. getting an el-cheapo RTL-SDR might be a better solution. Mike
 

a417

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Having a TP even without a post makes it easier than some to gain discriminator point access.

Carefully soldering a wire & resistor to a marked TP point (albeit a surface trace) and securing it like you need to do with the -164 is loads easier than some which requires attempting to solder on to the attached leg of a chip and then removing/replacing components like you would with a BCXLT180/280 (if you were also attempting to use the factory output due to not wanting to drill a hole in the side of your unit).

If the OP has a unit already, and the basic tools required, he could probably do what @frazpo linked to in his post.
 

KafxRadio

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[QUOTE = "a417, publicación: 3510462, miembro: 27413"]
Tener un TP incluso sin una publicación hace que sea más fácil que algunos obtener acceso al punto discriminador.

Soldar con cuidado un cable y una resistencia a un punto TP marcado (aunque sea un rastro de superficie) y asegurarlo como necesita hacer con el -164 es mucho más fácil que algunos que requieren intentar soldar en la pata adjunta de un chip y luego quitar / Reemplazo de componentes como lo haría con un BCXLT180 / 280 (si también estuviera intentando usar la salida de fábrica debido a que no desea perforar un agujero en el costado de su unidad).

Si el OP ya tiene una unidad y las herramientas básicas necesarias, probablemente podría hacer lo que [USER = 101084] @frazpo [/ USER] vinculó en su publicación.
[/CITA]
but where do I put the other end of the resistor?
 

Paco-Jerte

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Hello.I have a pro 164 and I want to do the discriminator tap.Can someone help me please?I need help, step by step.

its pretty simple. I did a pro 164 and 97 and both the same for the exception of the TP4 tip.
Look here:


I am currently working on a Pro-136 which has a very tiny IC and have to be careful with the soldering on pin #11 ( NJM2552 )
 
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