Автоматический антенный тюнер UR4QBP на ATmega8

[LY2BOK]

Integral, Добрый день,
А тюнер UR4QBP как то хочется чтоб автор довел до ума... Так вроде все работает , но когда надо пройти настройку ...то очень долго и нудно шчелкает 2-3 минуты. Перебирает все возможные варианты, несмотря, что КСВ 1.0 уже прошол. Работает версия от LZ1АWW.
Будем ждать. Может что-то поправит.
Интересно может у кого -то кто повторил эту конструкцию ,работает нормально и по шустрее? Отзовитесь.
Justas LY2BOK

[Integral]

А тюнер UR4QBP как то хочется чтоб автор довел до ума... Будем ждать. Может что-то поправит.

Автор больше не поддерживает проект, это его право. Так что ждать нечего, к сожалению.

[LY2BOK]

Integral, Жалко конечно..
Получается как в детском филме с Чили-Чалом.
Много начато - но не законченно.....
73!

[YO6PIR]

Hello everybody!
I am a passionate manufacturer of home made appliances, and I built this device. I was very pleased with its facilities, and for this, I congratulate its author. I made some improvements to the original project and I want to show you too.
I changed the software to look different and added some new features:
- Two-line bargraph focused on a single line of 2x16 characters LCD. I also used this feature in my SWR-PWR meter project. https://www.qsl.net/yo6pir/SWR11.html
- RF power measurement using an AD8307 logarithmic amplifier
- We have modified the tuner's tuning algorithm so that it can be tuned faster
- We have implemented new functions for calibrating the measured power of the device.
We have made all these improvements with a minimum of hardware changes, so that they can be adapted by anyone who owns this device.
Here are the new features of the device improved by me:


Basic display in AAT Mode


Display in SWR-PWR meter Mode


Display in MANUAL Mode


Display in DIR-REF Mode


Display in TUNNER-OFF Mode

All menus are selected from the old buttons but the exit from the selected mode is done only with the TUNE key.
An additional thing that I have adapted is the fact that automatic tuning can be triggered by pressing the TUNE key and from the MANUAL operating mode, and the change of the C / L position is manually controlled when the automatic tuning is initialized.
A short movie with device in use: https://www.youtube.com/watch?v=xLyT2DZ83oo

To be continued.

[YO6PIR]

The new design of control block and AD8307 Power sensor.

Added after 6 minutes (s) :

The new software:

[ATTACH] 345345 [/ ATTACH]

In order to be able to insert the power sensor with AD8307 I gave up the CW_relay from the old scheme that used the ADC0 input of the processor. Thus, with the new modifications, the tuner is tuned continuously at a low power of approximately 5-10W, without interrupting the emission when starting the relays.

[YO6PIR]

DEVICE CALIBRATION
Like any measuring device, it also needs a calibration to be able to measure correctly. To enter the calibration menu, hold down the <TUNE> key and turn on the device:

In this momment, release button.

In this menu, the value of the reference voltage of the ATMEGA8 integrated circuit on the <21> terminal is adjusted, using the <BAND_UP> and <BAND_DOWN> keys. If you do not want to calibrate the power factor, turn off the device with the ON / OFF button, in which case the device loads the DEFAULT calibration values ​​from memory, for the maximum measured power of 100W. If you want to calibrate, press the <TUNE> key again:

In this menu you set the power level to 1W per 50 Ohm load. When the exact value is reached, press the <TUNE> key

In this menu it sets the power level of 10W on the load of 50 Ohms, a level difference of + 10dB compared to the previous value. When the exact value is reached, press the <TUNE> key

The new measured values ​​are stored in the non-volatile memory of the device and will be taken into account for future measurements. BEWARE of these voltage level calibrations! The accuracy of the device depends on their accuracy. SUCCESS!
The device restarts and is now available for work. A video with the operation of the device

[YO6PIR]

Some photos with my device:

AAT side_view
AAT_Controller
AAT_view
AAT_old_coupler
AAT_new_coupler with power sensor AD8307

[UN7RX]

Комментарий модератора

1. UN7RX:
2. The official language of the forum is Russian. Use the google translator. Despite the useful information, posts not in Russian will be deleted!

[YO6PIR]

Прошу прощения за нарушение правил форума. При необходимости удалите пост.

[rz3qs]

При необходимости удалите пост.

Если можно, то лучше оставить.
Идея дополнительного детектора для измерения мощности может иметь право на жизнь.