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Yaesu VX-8r mod - first on the internet!

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  #1  
Old 01-04-2009, 09:46 AM
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Default Yaesu VX-8r mod - first on the internet!


This mod enables out of band TX on the Yaesu VX-8r.

Here's how to do it:

-Take out the battery.
-Under the battery is a heavy, thick plastic cover with very strong adhesive. Remove it using an XActo knife or a very small screwdriver that you can slip under it. This is the same cover you need to lift to install the Bluetooth option.
-After you get the cover open, it will look like this:



To mod the radio for out of band TX, locate the only resistor visible on the board, just to the left of the bluetooth plug:



All you have to do is carefully remove this resistor. I have a fine tip for my solder station for little work like this:



Make sure you clean off ALL the residual adhesive. Don't try to put back the cover that you took off, as it will be badly deformed and you will have lost some of the adhesive. Yaesu gives you several extra covers in the bottom of the box, so use a new one. This is important to preserve the waterproof integrity of the radio!

After you put the battery back in, the radio will have reset and you will lose all of your settings. I'm not sure what the complete range of TX is yet, but this mod definately opened it to TX out of the Amateur bands.

FIRST!


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  #2  
Old 01-04-2009, 04:22 PM
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Old 01-04-2009, 09:44 PM
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Default uh oh...

Darn, this mod is only a Mars/Cap mod not a freeband mod like on the VX-7R. I was hoping to open up TX into 47 MHz. It's a no go I am afraid. Hopefully there is a resistor to pluck for a freeband mod of some sort hopefully we can find it.

73's

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Old 01-04-2009, 09:49 PM
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Thanks for that info, LZA, before I voided my warranty!

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Old 01-05-2009, 07:15 PM
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Does anyone know what bands are opened up once this mod is completed?

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Old 01-06-2009, 11:43 AM
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i tested frs,155/465 tx. works fine

thanks mole for the info

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Old 01-06-2009, 08:05 PM
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Default Question: vx-8r mod. reset

The mod for the vx-8r for mars/cap says "after the battery is replaced the radio will reset and you will lose all your settings"

Question 1: Does the radio reset automatically or do you have to do a reset and which one?

Question 2: What settings are lost. Are the default settings intact or do you have to input ALL settings?

Roger, K8CIX

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Old 01-06-2009, 08:26 PM
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Q-1. It sounds like it ought to do the reset automatically. If not, do it manually.

Q-2. It sounds like anything you programmed into it will be gone. Writing the settings down before doing the mod sounds like a real good idea! Then reprogram it.
- 'Doc

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LinkBack to this Thread: http://www.worldwidedx.com/yaesu/31824-yaesu-vx-8r-mod-first-internet.html
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