X-108 Info X108G Radio Calibration (1 Viewer)

AC6KD schrieb:

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Here's what I have,. SN10807 on rear of mine... Hope it works! Filters

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DV1YZD schrieb:

Hi Guys

I'm new here, and I seem to screw up my X108G
I updated to the latest firmware but I wasn't able to backup the filters.
I did what the guide says about opening the case and looking for a label, but mine had no label or did not know where to find it.
I also seem to screw up the Radio Calibration section.
Can someone post a picture of their radio calibration section so that I can copy it and put it in my radio please?
(turn off radio - press F2, while pressing F2, turn On radio)

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DV1YZD schrieb:

Hi Guys

I'm new here, and I seem to screw up my X108G
I updated to the latest firmware but I wasn't able to backup the filters.
I did what the guide says about opening the case and looking for a label, but mine had no label or did not know where to find it.
I also seem to screw up the Radio Calibration section.
Can someone post a picture of their radio calibration section so that I can copy it and put it in my radio please?
(turn off radio - press F2, while pressing F2, turn On radio)

You must be registered for see images attach

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DV1YZD schrieb:

Hi Guys

I'm new here, and I seem to screw up my X108G
I updated to the latest firmware but I wasn't able to backup the filters.
I did what the guide says about opening the case and looking for a label, but mine had no label or did not know where to find it.
I also seem to screw up the Radio Calibration section.
Can someone post a picture of their radio calibration section so that I can copy it and put it in my radio please?
(turn off radio - press F2, while pressing F2, turn On radio)

You must be registered for see images attach

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artty schrieb:

Have you any progress P'jay ??


Art

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DD5LP schrieb:

This is from the service manual (it looks like to set the S-table a signal generator is needed).
Hello Ed.
Yes, the S table calibration does require a signal generator to set the levels.. My problem is that I have not got the Pcb small signal board version which is shown in the maintenance manual instructions, which is ver 1.41... My version is v 1.40 which of course is an older Pcb, and does not have the same layout as 1.41, in fact it is quite different, and that's why I cant be sure where RW1 potentiometer is located on the board ( if in fact it is indeed there !!) Have emailed XIEGU and asked if possible to assist, but nothing has come of it to date....Looks like I'm stuck.. Reference your calibration situation,, yes, a bad or wrong firmware upgrade version install could upset the system calibration table along with the system menu settings as well Ed.. Here's hoping some kind chap will have a picture of V1.40 Pcb..

I, by the way, have the internal Label stuck on the inside top of Pcb and use these values to set the USB and LSB Bfo correct values with an 1100 Hz offset..

Best wishes to you and family Ed.. Happy New Year

Art G3XNE
S table Parameter calibration

1) Set the receiving frequency of X108G to be 14.25000MHz, [USB] mode.
2) Open [PRE],close [ATT] and [AGC] and [SQL].
3) Connect the output port of the RF signal source to the antenna interface of the X108G;
4) Turn off the RF signal source output, adjust the S table reference voltage PotentiometerRW1, make the
-121dBm value of ADC on the screen is 2500, press the [SET] button to enter the next level signal setting.
5) Open the RF signal source, in turn, set up the signal source output signal amplitude by the each signal
intensity as displayed on a screen, and then press the [SET] button to enter the next level of signal
settings.
6) After setting all the signal levels, press the [SAVE] button to save and exit.

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When I look at the table in my X108G, all values in DB are set to 1941 - which is most likely why my S-meter is always pinned against the end stop!

73 Ed DD5LP

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AC6KD schrieb:

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Outdoooor version here, though. Had to replace previous radio in picture. It gave out! This one has held out. Latest firmware. Would like to see pic of your great mods!

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