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  1. Xiegu-X6100
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New radio, heat mitigation

 

Yes - that's right. ?Definitely important as someone mentioned earlier.
Tnx
Howard K4LXY
 

They sent me a replacement x-6100 due to other issues after firmware update and the new one does not get hot at all.I have several other Ham radios but really love this one - easy to use, always on the living room side table (wired to and Chameleon EMCOMM3) and gets out well on 10W QRP.?
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SSF
 

As KC3JJH mentions, there is a menu option for disabling charging during operation. The R1CBU firmware added a "shadow" option to the charging menu that disables it during operation, but allows it when not operating, so you don't have to toggle the menu option back and forth all the time. Very handy.
 

I have struggled with this issue from time to time. I did a park activation yesterday and decided to do it off battery, rather than the usual 12V car power. I went about 45 minutes with no noticeable heat issues. This tells me the main heat issues with this rig stem from overvoltage. I have a buck converter waiting in the wings to drop the supply voltage to 10V or so while operating mobile. I think this will settle the issue. Mind you, I have had several key-down overheating events that necessitated removing the covers and disconnecting the battery pack.?
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73 de K9NUD
 

Mine heats up too hot to touch on external power, with charger off. ?Should I contact support?
 

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Hi,
You should absolutely.
My radio is about 30C when receiving and charging is on.
When using CW it is ? becoming somewhat warmer but not that much. I don¡¯t use digital modes.
In summer it becomes warmer and switching charger off is a good idea.


Op 25 dec. 2023, om 23:04 heeft Patrick via <patrick.waugh@...> het volgende geschreven:

Mine heats up too hot to touch on external power, with charger off. ?Should I contact support?

 

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Switching the charger off is recommended to prevent damage to the battery if the unit is run from DC power,

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Also if you have the ability to reduce the input voltage from 13.8v to 11v-11.5 volt you won¡¯t lose output power but the unit will run a lot cooler

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Many of us also have some for of heatsink solution on the rear of the radio and some have fan stands as well

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Below is the rear of mine with a number of 20mm x 20mm heatsinks, personally I tried a larger heatsink and found the ear panel was slightly convex so larger heatsink didn¡¯t have much contact area for heat transfer to the heatsink so solution changed to many smaller heatsink

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IMG_0471.jpg

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Peter

M0PWX

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Hi,

You should absolutely.

My radio is about 30C when receiving and charging is on.

When using CW it is ? becoming somewhat warmer but not that much. I don¡¯t use digital modes.

In summer it becomes warmer and switching charger off is a good idea.

?

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Op 25 dec. 2023, om 23:04 heeft Patrick via <patrick.waugh@...> het volgende geschreven:

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Mine heats up too hot to touch on external power, with charger off. ?Should I contact support?

_._,_._,_

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On Tue, Dec 5, 2023 at 01:55 AM, Robert PA1RL wrote:
Also see?? for options. Please keep in mind that cooling at the bottom (not the back) is the best option.
I followed your idea and found a similar unit on eBay. ?With luck, link and photo below. ?My X6100 gets warm. ?I only use internal battery and SSB.
 

Indeed there is an overvoltage issue with 12 V car power, as the excess voltage is converted to heat by the linear regulators inside the X6100. A car battery is about 12V, when charging this can be 14 V. Lowering the input voltage would certainly help! I hope the buck converter is HF clean.

BTW In the field I use an external battery. I now have a 3s Li-ion pack built for this. I was planning to add a buck converter, but left the idea.
I now go for a 3s LiFePo4 pack. This would bring the operational voltage down without having to use a buck converter: the nominal voltage of one LiFePO4 cel is 3.2V (instead of 3.7V for Li-ion). I.e. the nominal voltage of the pack would be 9.6 V, spot on for the X6100.

73's?


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Robert

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