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VX-4000 / VX-5500 / VX-6000 dual deck

ufdemt15

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Feb 23, 2010
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Unadilla, New York
I currently have a Vx-4000v with remote head single deck and I would like to have a single head dual deck to add UHF. Can you mix a Vx-4000v deck and a Vx-5500u deck with a remote head or do you need to keep it all vx-4000's?
 

express315

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Oct 22, 2020
Messages
19
Yes, you can mix them in any combination of models as long as both decks belong to a different band - L, V or U.
If I remember correctly lower band deck must be set as slave (or vice versa).
Correct ports for interconnection described in a manuals that come with remote adapter kits. In the Common/Hardware you have to set Dual Deck/Single Head and select a slave deck and proper bands and models before you start. The programming must only be done via connector at the remote head after everything is connected. Do not use deck side connectors. Read the Help files in CE49. The whole process is very confusing but it can be done. I did it last year, took me a while.
In the end you will not only have a dual band radio but also a two way cross-band repeater.
 

express315

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Oct 22, 2020
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Pictures of VX-4000 dual deck/single head V and L modded for 2m and 6m.
 

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E5911

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the lower desert
Im looking to do the same but need to know how to determine a vx5000u is the A or D version. I need coverage 430-450
Which split will work for ham ?
 

express315

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Joined
Oct 22, 2020
Messages
19
I don't think you will ever find the A version in North America. I only see D version radios 450-490 mhz.
When you read from a radio with CE49 software, then go to "Hardware" tab and you will see the frequency split along with the model.
I suspect the A model would have "VX-5500U A" printed on the label, but again I have only seen how A models for Low Band are marked.
On the other hand D model is easily hex edit opened down to 440 mhz and will work if you used CE49 v4.0.6
Other sw versions make radios to behave erratically on out of band frequencies.
I don't know why you need 430 mhz, there are no HAM repeaters below 442 mhz in my country.
The A version would be ideal, but they were probably only available in other parts of the world.
Let me know if you ever find one.
 
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