Re: Power - Voltage too high ?
Thank you for your insight on this issue¡.
Cheers,
Paul Ve3htf
In the x6100 the supply voltage is NOT reduced before going to the finals and so the previous comments are both true and untrue. 12V into the radio = 12V onto the final FET. That is why it needs 12V external for 10W... I personally think hacking the firmware to make it look like 10W on the battery is a stupid stupid idea that will result in tears. The CPU and circuits do indeed drop the battery (or external input) voltage to the required levels for the various circuits, 3,6, 5v,8v etc BUT the RF OUPUT FET is directly coupled to the battery/or external voltage. The output FET used in the x6100 is the sane as the one in the ICOM 705 and is rated to 30W and excess of 40 Volts, with a. working case temperature of 150 oCelcius so the 5-10w we throw at it is well within design range. The cooling for the FET may however leave something to be desired.
Running 10W on ANY passive cooled radio will result in a warm case..
By far the worst offender and the one thing that manufacturer says is DO NOT CHARGE AND TX .. the charger will then have to dissipate the 3-4amps you are drawing and it is not cooled. This is pretty obvious pretty quickly.
I read so many assumptions and statements about case cooling. That cooling the case won't cool the battery, or won't cool the finals... the finals are buried in the middle of the radio! ?
All heat removed from the case/body/finals is REMOVED and WILL contribute to cooling the finals. That is physics not assumptions. What is not clear is how much passive cooling is needed for a lunatic to think that he can drive it at 10W FT8 duty for 12 hours.?
The radio also sports a LDMOS MCP temperature sensor in the output stages. There is a lot of extremely good features in this radio...
Worth remembering .... the output RF stage is a LINEAR AMP.. There is a minimum current draw due to biasing and the class of amplification employed.
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I think with R1CBU I hear fewer birdies but I see more fake signals on the waterfall.?
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The comment on less birdies is really interesting.? I'll try the r1cbu firmware and report back
I don't think that you are crazy. I have been thinking the same thing since I started using the R1CBU firmware. To my ear the receive audio sounds much better with the rig running Oleg's firmware, especially on CW.?
I hear a lot less birdies tuning across the band too. I also really like the "cleaner" interface that Oleg has implemented. I am a big believer in "less being more". There are still some "anomalies" on the waterfall with the R1CBU firmware but I generally don't hear anything when I tune past them.??
Michael VE3WMB
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Re: X6100 release of v1.17, adding support for wfview
https://www.cqxiegu.com/productinfo/790911.html
the link above should take you to english version.?
Tim
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--
Gary Mitchelson
NC3Z/4 Pamlico County, NC FM15
NC AHIMT COML
SHARES NCS997
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Re: ALC 100 and NO TX output (AFT5M31N) LDMOS
Hello Scott
?
good news from my side
?
after flashing the new firmware version (1.1.7) my radio is still alive.
?
I haven't tested the FT8 mode yet, I'm afraid! HIHI
73?
Real
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Re: ALC 100 and NO TX output (AFT5M31N) LDMOS
I am not fully sure Real.
My radio has the capacitor you have indicated.?
It may be a parallel cap that is used when they cannot source a value??
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Re: Power - Voltage too high ?
In the x6100 the supply voltage is NOT reduced before going to the finals and so the previous comments are both true and untrue. 12V into the radio = 12V onto the final FET. That is why it needs 12V external for 10W... I personally think hacking the firmware to make it look like 10W on the battery is a stupid stupid idea that will result in tears. The CPU and circuits do indeed drop the battery (or external input) voltage to the required levels for the various circuits, 3,6, 5v,8v etc BUT the RF OUPUT FET is directly coupled to the battery/or external voltage. The output FET used in the x6100 is the sane as the one in the ICOM 705 and is rated to 30W and excess of 40 Volts, with a. working case temperature of 150 oCelcius so the 5-10w we throw at it is well within design range. The cooling for the FET may however leave something to be desired.
Running 10W on ANY passive cooled radio will result in a warm case..
By far the worst offender and the one thing that manufacturer says is DO NOT CHARGE AND TX .. the charger will then have to dissipate the 3-4amps you are drawing and it is not cooled. This is pretty obvious pretty quickly.
I read so many assumptions and statements about case cooling. That cooling the case won't cool the battery, or won't cool the finals... the finals are buried in the middle of the radio! ?
All heat removed from the case/body/finals is REMOVED and WILL contribute to cooling the finals. That is physics not assumptions. What is not clear is how much passive cooling is needed for a lunatic to think that he can drive it at 10W FT8 duty for 12 hours.?
The radio also sports a LDMOS MCP temperature sensor in the output stages. There is a lot of extremely good features in this radio...
Worth remembering .... the output RF stage is a LINEAR AMP.. There is a minimum current draw due to biasing and the class of amplification employed.
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Re: X6100 release of v1.17, adding support for wfview
Ron,
On the page that opens, on the top menu, all the way to the right end of the menu, if you highlight that item, you will have the option to select English for the page and all other pages from that one.
However, when I tried to download the zip file, Google or Firefox won't allow it.
(It's actually Chinese.)
Jerry
toggle quoted message
Show quoted text
On Wed, Aug 9, 2023 at 05:51 PM, Ron Wright wrote:
Sorry, dont read Japanese.
73, ron, n9ee
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Re: X6100 release of v1.17, adding support for wfview
Sorry, dont read Japanese.
73, ron, n9ee
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The X6100 has NO PL or CTCSS tones, it cannot encode or decode CTCSS tones.
73, ron, n9ee/r Ron Wright, N9EE/R Hernando Co ARES EC
Spring Hill, Florida also n9ee55@...
On Wednesday, August 9, 2023 at 08:41:19 AM EDT, K9NUD-Steve <k9nud@...> wrote:
Sorry, OM. You have discovered a major shortcoming in the x6100.?
--
73 de K9NUD
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Re: new X6100 firmware (with support of wfserver)
Would anyone like to share their review setting?
I have water some YouTube videos but radio will not connect.
John N6TRC
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There was a thread on the group awhile back about charging voltage.? The thread related primarily to the fact that the higher the charge voltage the more heat was generated within the radio while charging the internal battery.? Many of us purchased a DROK voltage limiter and set a lower voltage.? This does help with the temperature.? My power supply puts out 13.6vdc, but on my X6100 the voltage showed 13.8-13.9vdc.? I adjusted my DROK to 10vdc for charging some chose other voltage settings.? While the issue was regarding internal heat buildup you may consider using a DROK to be sure that the maximum voltage is not exceeded.
This may be a trivial question but I have only recently purcahsed the X6100 which I am using with the Pro-Audio Engineering KX33 power supply.
The PSU is rated at 14 volts but the diplay on my X6100 is showing 14.4 volts.
There are dire warnings in the Xiegu manual not to supply more 15 volts and, of course, 14.4 is less than 15.
This still feels a little close to the operational limit.
My questiosn are :-
- Is anyone else out there using the X6100 / KX33 combo ?
- Are you seeing 14.4 volts or more on the display (i.e is this normal) ?
- Should I be concerned about running this close the max ?
- Anything else on this topic I should be aware of ?
Thanks
Geoff
G3YTX
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Yes you must use a TRS plug even with a mono speaker. On Wed, Aug 9, 2023 at 04:35 groups.kc3suw.eycn2 via <groups.kc3suw.eycn2= [email protected]> wrote:
I was just doing some experimenting and discovered that the x6100 speaker port does not work with TS plugs, extremely quiet no matter how I set up the radio. I tried a different speaker with a TRS cable and it works just fine. Plug the TS speaker in part way and it works. Same results with multiple speakers with TS male.
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Re: Power - Voltage too high ?
I generally run my X6100 off of 12V and I have found that when operating CW for an extended time period it will be slightly warm to the touch.?
As has been discussed before on this forum, the internal battery is only in the 8 to 9v range so running the rig off of an external voltage significantly higher than that
means that the internal voltage regulator in the radio has to dissipate the extra as heat. As we know the one thing that kills lithium batteries is excess heat so it is best to drop that
excess voltage outside the rig to avoid overheating and reducing the life of the internal battery.?
Michael VE3WMB?
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I don't think that you are crazy. I have been thinking the same thing since I started using the R1CBU firmware. To my ear the receive audio sounds much better with the rig running Oleg's firmware, especially on CW.?
I hear a lot less birdies tuning across the band too. I also really like the "cleaner" interface that Oleg has implemented. I am a big believer in "less being more". There are still some "anomalies" on the waterfall with the R1CBU firmware but I generally don't hear anything when I tune past them.??
Michael VE3WMB
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Sorry, OM. You have discovered a major shortcoming in the x6100.?
--
73 de K9NUD
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Re: Power - Voltage too high ?
Geoff,
The X6100 has well documented overheating issues, and many have concluded that reducing the power supply to 9 volts, give or take, is the best strategy. I have operated mine as a mobile rig and have encountered several overheating lockups at 13.8V. Keep in mind the guidance to turn charging off. Still, mine will get stuck in transmit mode until I take it apart and disconnect the battery. It happened again last week. I operate 5W CW exclusively, so I am definitely not overdriving it.?
This rig operates natively from a pair of 3.7V cells, so it appears 8-9V will be more than adequate. Others have taken temperature and current measurements that confirm the 9V figure. Any additional voltage will merely generate heat.
I am prepping a buck/boost board to limit the power in the car. For now, my QCX20 is the mobile rig until I get an enclosure and associated wiring done for the board.?
--
73 de K9NUD
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Re: ALC 100 and NO TX output (AFT5M31N) LDMOS
Bonjour Scot
Find images of the radio.
when I compare the images
why is missing a (coil or capacitor) close to the coil and the 4700 resistor and the ldmos output
see picture 
 ?My RIG Picture
Could be a quality issue ?
Thank Real (ve2cuz)
[Edited Message Follows]
Real,?
No problem, I found the thermistor on the battery side (see photo).
I measures the voltage of the centre pin (Vout) at ~12oC and it was ~ 0.63V ... The supply to the Vin was 5V. I wamed the thermistor slightly and it changed to 0.67V - so it does work to some amount.
I read that the temperature coefficient of the thermistor is 10mV per oC so, at 12/13oC the coefficient would be 13X0.01V = 0.13. The 0oC Vout is 0.5V ... So... 0.5V + 0.13V = 0.63V ... this indicates to me that the thermistor is probably 100% working correctly.
Tonight I will check more scientifically and study the document of MC9700 and try to work out if the voltage at this temperature is correct or not but from the above it would appear to be fine.?
?
Thank you for this valuable information Real! I had no idea the radio had this.
  
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His filter settings are better , far easier to set, It could be that, Dave? On Wed, 9 Aug 2023, 10:36 groups.kc3suw.eycn2 via , <groups.kc3suw.eycn2= [email protected]> wrote:
Am I crazy or is the audio quality on the R1CBU firmware far better than stock? I am using an external speaker of it makes a difference. It seems like I can copy stations far lower into the noise floor than in stock firmware.?
I even switched back and forth listening to the same rag chew and heard the same thing.?
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John G0KTW
BurnIt
K9NUD-Steve