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z-11 Pro firmware


 

Hi all, I have a problem with this ATU that stopped working well during a 70 cm band qso with the Yaesu FT-757D which is known to have isolation problems between the UHF and HF ranges causing false starts of the tuning procedure. Particularly it stopped working the manual activation of the tuning using the Tune button however it worked normally going on transmission on the various freq ranges perhaps going first to AM to safeguard the relays. Today I tried downloading the firmware from the PIC ROM to try reloading it but I corrupted the file and nothing worked anymore. The firmware version is 15 but trying to reload the 13 available here among the obsolete files the program starts and the keys work but it does not tune automatically even going on transmission. Would you have any suggestions on this? T
hank you 73'
Marco IZ0MFI
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Z-11:

1.8 to 54.0 MHz coverage

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So how are you using this tuner on 70cm???

W4JDY / EM79xr / ITU 8 / CQ 5

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From: [email protected] <[email protected]> On Behalf Of Marco IZ0MFI via groups.io
Sent: Sunday, March 16, 2025 12:49 PM
To: [email protected]
Subject: [ldgelectronics] z-11 Pro firmware

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Hi all, I have a problem with this ATU that stopped working well during a 70 cm band qso with the Yaesu FT-757D which is known to have isolation problems between the UHF and HF ranges causing false starts of the tuning procedure. Particularly it stopped working the manual activation of the tuning using the Tune button however it worked normally going on transmission on the various freq ranges perhaps going first to AM to safeguard the relays. Today I tried downloading the firmware from the PIC ROM to try reloading it but I corrupted the file and nothing worked anymore. The firmware version is 15 but trying to reload the 13 available here among the obsolete files the program starts and the keys work but it does not tune automatically even going on transmission. Would you have any suggestions on this? T

hank you 73'

Marco IZ0MFI

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Edited

No of course, I don't use the ATU on the 70 cm band, this tuner is connected to the Yaesu FT-857 which also has the 70 cm and while transmitting on this range the ATU attempts tunings but of course it does not reveal any impedance matching and goes into ambiguity alarm; Unfortunately the last time I raised the power in UHF from 2-3W where I don't have this phenomenon to 20 W something I think got corrupted in the firmware as it stopped working perfectly and then I hope to reload the program on his PIC 16F876.
73' Marco IZ0MFI
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WOW – I did not know the Z-11-PRO was rated to work on 70cm.? I was almost certain it was from 1.800-MHz to 54.000-MHz only.? I never considered using it because my UHF antenna is a very low SWR from the start.



Vy73 - Mike - KD5KC.

El Paso, Texas - DM61rt.

SOTA W5T-Texas Association Manager.

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From: [email protected] <[email protected]> On Behalf Of Marco IZ0MFI via groups.io
Sent: Wednesday, March 19, 2025 2:36 AM
To: [email protected]
Subject: Re: [ldgelectronics] z-11 Pro firmware

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No of course, I use the ATU on the 70 cm, I use this tuner with the Yaesu FT-857 which also has the 70 cm and while transmitting on this range the ATU attempts tunings but of course it does not reveal any impedance matching and goes into ambiguity alarm; Unfortunately the last time I raised the power in UHF from 2-3W where I don't have this phenomenon to 20 W something I think got corrupted in the firmware as it stopped working perfectly and then I hope to reload the program on his PIC 16F876.

73' Marco IZ0MFI

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Never mind………

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From: [email protected] <[email protected]> On Behalf Of Marco IZ0MFI via groups.io
Sent: Wednesday, March 19, 2025 2:37 AM
To: [email protected]
Subject: Re: [ldgelectronics] z-11 Pro firmware

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[Edited Message Follows]

No of course, I don't use the ATU on the 70 cm band,

73' Marco IZ0MFI

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Plan on buying a new or used Z11-proll at Dayton.? How can I know if I have a latest firmware?
Paul kw1L


 

Open the case, look at the processor chip. I just bought mine recently and it has a label with "FW 1.3" on the chip. Hope that helps you.

Dave, KJ7WUZ

On Wed, Apr 9, 2025 at 11:32, Paul via groups.io
<adlerps@...> wrote:
Plan on buying a new or used Z11-proll at Dayton. How can I know if I have the latest firmware?
Paul kw1L


 

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Tnx much !!!

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Joseph D. Yuna
Joseph D. Yuna (LCDR USN/ret.)

W4JDY / EM79xr / ITU 8 / CQ 5

United States of America

W4JDY1953@...

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From: [email protected] <[email protected]> On Behalf Of O-B-1 KJ7WUZ/WRHW845 via groups.io
Sent: Thursday, 10 April, 2025 04:46
To: [email protected]
Subject: Re: [ldgelectronics] z-11 Pro firmware

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Open the case, look at the processor chip. I just bought mine recently and it has a label with "FW 1.3" on the chip. Hope that helps you.

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Dave, KJ7WUZ

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On Wed, Apr 9, 2025 at 11:32, Paul via groups.io

<adlerps@...> wrote:

Plan on buying a new or used Z11-proll at Dayton. How can I know if I have the latest firmware?

Paul kw1L


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