The ATU-100 remote controller Part.3

The third test was to completely test the ATU-100 functionality and that the all buttons control works remotely via Bluetooth. I tried to turn ON/OFF the tuner and then tested the functionality of the TUNE/RESET, AUTO and BYPASS buttons with the corresponding response on the OLED display. The video below shows that the whole functionality works correctly. All the responses were visible on the OLED display:

RESET -> short prest of the RESET/TUNE button
TUNE -> long press of the RESET/TUNE button
AUTO -> press of the AUTO button (indicated by the „.“ between the PWR and L)
BYPASS -> press of the BYPASS button (indicated by „_“ between the PWR and L)

After the buttons functionality test I tried to enter the both test modes described below.

FAST TEST MODE
To enter the Fast Test Mode we press at the same time TUNE/RESET + AUTO + BYPASS buttons and then we apply the POWER button to turn the ATU-100 ON.
The Fast Test Mode switches the all relays to the ON state and connects all the inductances and capacitances at once.
In my case I could see the current consumption increased from ca 120 mA to 330 mA (the consumptions includes the Arduino Nano, HC-05, LEDs and tuner together).

THE TEST MODE
To enter the Test Mode we press at the same time AUTO + BYPASS buttons and then we apply the POWER button to turn the ATU-100 ON.
At the Test Mode we can check the inductances and capacitances individually by pressing the AUTO button to decrease the value and BYPASS button to increase the value. By the long press of the TUNE/RESET button we can switch between the inductances test and capacitances test.

The ATU-100 remote controller Part.2

The second test follows up on the previous testing but adds the function of the TUNE/RESET, AUTO and BYPASS buttons of the automatic antenna tuner ATU-100.
Because the tuner uses the negative logic to control the the TUNE/RESET, AUTO and BYPASS function all three LEDs light of the slave module when the tuner is turned ON (logic 1).
By pressing the TUNE/RESET, AUTO, BYPASS the button on the muster module the appropriate LED on the slave button is switched OFF (logical 0).

The second test of the bluetooh remote controller of the N7DDC ATU-100 (testing buttons TUNE/RESET, AUTO, BYPASS)

The ATU-100 remote controller Part.1

The first successful test of the bluetooth remote controller for N7DDC ATU-100. The first test shows just only the test of turning ON/OFF the N7DDC automatic antenna tuner via bluetooth HC-05 modules and using an Arduino UNO as the master controller with POWER, TUNE/RESET, AUTO and BYPASS buttons and an Arduino NANO as the slave controller with a green control (ON/OFF) LED and a bistable relay to switch ON/OFF the +12V ATU-100 power supply.

The first test of the bluetooh remote controller of the N7DDC ATU-100

9A/OK1TK/P, IOTA: EU-016

Location: Croatia, Island of Hvar, Ivan Dolac, IOTA: EU-016, Loc: JN83HD.
I was allowed to raise my antenna next to our apartment so I moved to the center of Ivan Dolac. Therefore I am able to work directly from our apartment and that’s much more easier. Anyway 20W seems to be bit less then I would need to make more SSB contacts so I switched to FT8 and was able to work some interesting DX locations, e.g. Malawi, Brazil, Uruguay on 10m and 15m.


9A/OK1TK/P, IOTA: EU-016

Location: Croatia, Island of Hvar, Ivan Dolac, IOTA: EU-016, Loc: JN83HD61.
My first test of my mobile equipment in Croatia was not quite successful. I underestimated the Croatian soil full of small stones so I was not able to use my plastic threaded pins tu support the Spiderbeam mast. I had to improvise and use my car as support. Also the conditions were not very good so I was able to make 2 QSO only with M0MCV to London and EA9KB to Ceuta.
Although the conditions were not good the view from my location was really wonderful.

OK1TK/P, LOC: JO70OS

Within the July 2nd till July 8th I worked portable in the small village of Karlov. Karlov is located ca 120 km NE from Prague in the mountains called Jizerske hory where the highest point is 1124 m.a.s.l.

Unfortunately my working conditions were not very good due to the high local QRM especially on 20m where it was up to S7. The equipment used was the same as last time: Xiegu G90 (20W), BHI Dual Inline DSP, Aerial-51 model 404-UL ultralightweight, asymmetrical dipole HF antenna with the 12m high Spiderbeam pole.
All calls are logged on the qrz.com (OK1TK/P).

OK1TK/P, LOC: JO80AC

Today it was my first HF portable operation ca 3,5km from the center of the town Holice. I tested my new Aerial-51 model 404-UL ultralightweight, asymmetrical dipole HF antenna with the 12m high Spiderbeam pole. I used my Xiegu G90 with 20W output power.

My sons (OK1RJO) helped me to setup the antenna with hombrew antenna pole holder.
The homebrew antenna pole holder inspired by the 2nd version designed by VE3TWM was performing very well despite the relatively windy weather. It was used without any other support for the pole. To avoid the pole bending it would be better to use additional Kevlar guy line or lines.

QSO with OE2MRN on 40m band.

I tested the digital modes at the end as well. Due to the limited battery capacity of my notebook it was fast test and the results from PSK reporter are below.

BHI Dual In-line test video

Because I face really strong QRM and band noise in my location I decided to invest to the DSP noise eliminating module from BHI. After a long hesitation I decided for Dual In-Line. I ordered the module from Wimo on Tuesday evening and it lended on my desk on Friday. I wanted to participate at UK/EI SSB contest in the weekend so I run a short testing. You can see the result in the attached videos.
I will try to make some tests on 80m as well because this band is almost unusable for me due to the S7/S8 noise level in the evenings.

BHI Dual In-line DSP noise canceling module – fisrt test /part1
BHI Dual In-line DSP noise canceling module – fisrt test /part2

ISS HAM radio repeater

Sep 27th, 19:02 UTC, Holice, Loc: JO70XB

Within the weekend starting Fri Sep 25th me and my sons were trying to listen and make a QSO via the ISS repeater. There wasn’t any succes with QSO due to the pure antenna equipment which was only the mag-mount NR-770RSP on a piece of metal inclined at an angle of 45 °. The TRX was my old Kenwood TM-V7E powered by Banner 12V 74Ah accu.

We could very well listen to the QSO between G1MHU (UK, close to Manchester) and IK8XLD (Italy, half way from Bari to Napoli), distance between those stations was ca 1.900 km.