Some issues with DigiManager and FT8

[BI4PYM]

I tested FT8 and it works. However, there have been some issues where a wider pulse appears every time the symbol switches, which can contaminate the spectrum. And only after clicking "open" to open the serial port, the first transmission takes effect, and the walkie talkie does not respond during the second transmission. Additionally, we would like to add support for modes such as FT4 and WSPR in WSJT-X.

[BI4PYM]

I also hope to support FT8 and other modes at different frequencies, even up to 1200MHz

[BI4PYM]

Well, during the testing, I found that the problem of not being able to continuously launch was inexplicably solved. Who knows why :-\

[BI4PYM]

It looks like 50.313 won't go to TX, even if all frequency transmission restrictions are disabled

[BI4PYM]

我还希望支持FT8等不同频率的模式，甚至最高1200MHz

I raised this point because I found that it is not possible to switch to FT8 at 433MHz

[troilus]

Well, during the testing, I found that the problem of not being able to continuously launch was inexplicably solved. Who knows why :-\

线没接好

[troilus]

It looks like 50.313 won't go to TX, even if all frequency transmission restrictions are disabled

k5是uv段核准机

[BI4PYM]

It looks like 50.313 won't go to TX, even if all frequency transmission restrictions are disabled

k5是uv段核准机

但是FT8不能在433MHz下使用。并且可以修改RF滤波器以实现50MHz和其他频率的合法指标。 But FT8 cannot be used at 433MHz. And it is possible to modify the RF filter to achieve legal indicators of 50MHz and other frequencies.

[troilus]

It looks like 50.313 won't go to TX, even if all frequency transmission restrictions are disabled

k5是uv段核准机

但是FT8不能在433MHz下使用。并且可以修改RF滤波器以实现50MHz和其他频率的合法指标。 But FT8 cannot be used at 433MHz. And it is possible to modify the RF filter to achieve legal indicators of 50MHz and other frequencies.

FT8只是无线电通信模式，可以在任意合法划分频率使用，在https://pskreporter.info/pskmap.html 查到70cm FT8传播情况。 UV-K5可以修改硬件，但是电台本身只核准了UV段，改装后的电台按要求还得设台流程。

FT8 is just a radio communication mode that can be used on any legally allocated frequency. The propagation conditions for FT8 on the 70cm band can be found on [https://pskreporter.info/pskmap.html.[1](https://pskreporter.info/pskmap.html.%5B1)] The UV-K5 radio can be hardware modified, but the radio itself is only approved for the UV bands. After modification, the radio still needs to go through the proper licensing process as required.

[BI4PYM]

It looks like 50.313 won't go to TX, even if all frequency transmission restrictions are disabled

k5是uv段核准机

但是FT8不能在433MHz下使用。并且可以修改RF滤波器以实现50MHz和其他频率的合法指标。 But FT8 cannot be used at 433MHz. And it is possible to modify the RF filter to achieve legal indicators of 50MHz and other frequencies.

FT8只是无线电通信模式，可以在任意合法划分频率使用，在https://pskreporter.info/pskmap.html 查到70cm FT8传播情况。 UV-K5可以修改硬件，但是电台本身只核准了UV段，改装后的电台按要求还得设台流程。

FT8 is just a radio communication mode that can be used on any legally allocated frequency. The propagation conditions for FT8 on the 70cm band can be found on [https://pskreporter.info/pskmap.html.[1](https://pskreporter.info/pskmap.html.%5B1)] The UV-K5 radio can be hardware modified, but the radio itself is only approved for the UV bands. After modification, the radio still needs to go through the proper licensing process as required.

我的意思是cec固件实现的FT8无法在非144MHz频段下发射。 What I mean is that the FT8 implemented by CEC firmware cannot be transmitted in non 144MHz frequency bands.

[BI4PYM]

It looks like 50.313 won't go to TX, even if all frequency transmission restrictions are disabled

k5是uv段核准机

但是FT8不能在433MHz下使用。并且可以修改RF滤波器以实现50MHz和其他频率的合法指标。 But FT8 cannot be used at 433MHz. And it is possible to modify the RF filter to achieve legal indicators of 50MHz and other frequencies.

FT8只是无线电通信模式，可以在任意合法划分频率使用，在https://pskreporter.info/pskmap.html 查到70cm FT8传播情况。 UV-K5可以修改硬件，但是电台本身只核准了UV段，改装后的电台按要求还得设台流程。

FT8 is just a radio communication mode that can be used on any legally allocated frequency. The propagation conditions for FT8 on the 70cm band can be found on [https://pskreporter.info/pskmap.html.[1](https://pskreporter.info/pskmap.html.%5B1)] The UV-K5 radio can be hardware modified, but the radio itself is only approved for the UV bands. After modification, the radio still needs to go through the proper licensing process as required.

在美国业余无线电设备并不需要进行核准 Amateur radio equipment in the United States does not require approval

[BI4PYM]

It looks like 50.313 won't go to TX, even if all frequency transmission restrictions are disabled

k5是uv段核准机

但是FT8不能在433MHz下使用。并且可以修改RF滤波器以实现50MHz和其他频率的合法指标。 But FT8 cannot be used at 433MHz. And it is possible to modify the RF filter to achieve legal indicators of 50MHz and other frequencies.

FT8只是无线电通信模式，可以在任意合法划分频率使用，在https://pskreporter.info/pskmap.html 查到70cm FT8传播情况。 UV-K5可以修改硬件，但是电台本身只核准了UV段，改装后的电台按要求还得设台流程。

FT8 is just a radio communication mode that can be used on any legally allocated frequency. The propagation conditions for FT8 on the 70cm band can be found on [https://pskreporter.info/pskmap.html.[1](https://pskreporter.info/pskmap.html.%5B1)] The UV-K5 radio can be hardware modified, but the radio itself is only approved for the UV bands. After modification, the radio still needs to go through the proper licensing process as required.

不建议继续使用Quote reply了，建议直接发送Comment

[troilus]

It looks like 50.313 won't go to TX, even if all frequency transmission restrictions are disabled

k5是uv段核准机

但是FT8不能在433MHz下使用。并且可以修改RF滤波器以实现50MHz和其他频率的合法指标。 But FT8 cannot be used at 433MHz. And it is possible to modify the RF filter to achieve legal indicators of 50MHz and other frequencies.

FT8只是无线电通信模式，可以在任意合法划分频率使用，在https://pskreporter.info/pskmap.html 查到70cm FT8传播情况。 UV-K5可以修改硬件，但是电台本身只核准了UV段，改装后的电台按要求还得设台流程。 FT8 is just a radio communication mode that can be used on any legally allocated frequency. The propagation conditions for FT8 on the 70cm band can be found on [https://pskreporter.info/pskmap.html.[1](https://pskreporter.info/pskmap.html.%5B1)] The UV-K5 radio can be hardware modified, but the radio itself is only approved for the UV bands. After modification, the radio still needs to go through the proper licensing process as required.

我的意思是cec固件实现的FT8无法在非144MHz频段下发射。 What I mean is that the FT8 implemented by CEC firmware cannot be transmitted in non 144MHz frequency bands.

明白了。是的， 目前发现只有28MHz和144MHz两种 Understood. Currently only two options of 28MHz and 144MHz have been found.

[tristanmoney]

The standalone WSPR function also produces splatter when the symbol changes. I wonder if the phase is reset when shifting frequency? It probably isn't noticeable when received from a distance.

[tristanmoney]

See screenshot of the USB audio received from my SDR when transmitting WSPR. It looks like there might be a phase shift right before the symbol changes which could be causing splatter. I thought both WSPR and FT8 don't use phase changes (only frequency changes) so not sure what is going on.

[sdcvs2020]

I think that could be a problem with DigiManager, where the phase was not processed during frequency changes

[tristanmoney]

I think that could be a problem with DigiManager, where the phase was not processed during frequency changes

It happens with WSPR as well, so I think it is something in the radio firmware.