Anvelina SDR transceiver by EU2AV

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YL2GVC
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Anvelina SDR transceiver by EU2AV

#1 Непрочитанное сообщение YL2GVC » 12 ноя 2021 23:20

Hello! This is my first post on this forum in English Smile
As you can understand here will be discusiion, FAQ, etc about EU2AV Anvelina SDR transceiver. If you want to follow history of this SDR TRX, check this thread: https://eu2av.ru/viewtopic.php?f=4&t=141 and use Google translate ;) but time by time I will publish news here as well.
Anvelina SDR are developed by Yuri EU2AV and he got very good parameters. Time by time there are folk who show interest to buy bare board of SDR, like ANAN 6000, 7000 or Orion for example. But real offers are rare and Apache Labs looks like do not plan produce bare boards anymore. There are not a lot of documentation about this project. Mainly it is distributed inside Russian speaking community. At this stage, this project needs to be advertised on English speaking comunity ;) Author has extra PCBs. There are two of them. Main SDR PCB consist two ADC, thats mean DIVERSITY!!! There can be used mainstream LTC2208. But with LTC2217 it will goes around 6th-8th place in Sherwood list!!! There are some rumors, that after newest modifications it will goes to even higher place One ham made deep tests on this SDR board. It is named Anvelina Pro III, newest version. Even most biggest problem right now, are lack of ICs and other parts on market :-/ But possible source for parts are Aliexpress At least for BGA. It was possible to get it there for reasonable price, but now prices skyrocketing. And a lot of fakes :-/ Actually BGA soldering are worst part of this project. But as from feedback, on newest versions of boards with gold immersion, it goes much easier. Just these boards are more expensive.
You can check his Youtube channel: https://www.youtube.com/channel/UCeNlKE ... &flow=grid
Author show method, how to solder BGA. If follow all directions, even newbie can do it by himself
As well as, you can check neighbor thread: https://eu2av.ru/viewtopic.php?f=4&t=141
You can find HiRes pics of boards there. Not a problem to use Google translate. For skilled ham there shouldn’t be problems to build it up without help from side. But not all are like such a skilled.
I will try to help about this project, so much, how I can ;)

Please pay attention!!!
I just realize, Youtube input spoken text into subtitles quite well 8-) As well it translate to English quite good 8-) Find button CC, it start to capture spoken text to subtitles. After go to next button Settings, push it and you will see Subtitles/CC, push it and there will be Auto translate, push it and there will be drop down list with languages, choose your ;) But I wouldn't except good translation to languages other than English, German, etc. But who knows ;)

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#2 Непрочитанное сообщение YL2GVC » 13 ноя 2021 13:24

Hello! For information, as you can see on right side, you can switch the language. There are not only English ;) If you want more, let me know. Rules here are simple, as on most of the forums! Registration should be approved by owner Yuri EU2AV. Please remember exact time of registration, because of bots :evil: Yuri promise solve it in coming days. And let me know. At start you can do that through OpenHPSDR list, if you face up any problems. Or you can sort out from there what is my email ;) I will try to start fill it up with information ;)

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#3 Непрочитанное сообщение DH1KLM » 13 ноя 2021 18:54

I am very curious about your reports on construction and component procurement. As already said, I would like to get involved in this project, but the current problems with the components let me refrain from doing so for the time being. But of course I will read along here as well.
73 de Sigi / DH1KLM

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#4 Непрочитанное сообщение YL2GVC » 13 ноя 2021 20:36

Right now there are problems, but it is possible to get over them 8-) Mostly there are skyrocketed prices on some parts :o BGA and KSZ9031 are most problematic part. It is possible to get on Ali, but big chance of fake :evil: As well for example LTC2217 in reality are LTC2208.

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#5 Непрочитанное сообщение YL2GVC » 14 ноя 2021 21:00

Anvelina SDR deep testing by RX3AM 8-) Later he will publish test results.
Вложения
photo_2021-11-14_19-49-08.jpg
photo_2021-11-14_19-49-08.jpg (218.93 КБ) 2296 просмотров

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#6 Непрочитанное сообщение eu2av » 15 ноя 2021 02:24

A small comparison in terms of current consumption, on the first board there is a good thermostatic generator with it, the total consumption came out to 970ma, in the second case it is a conventional generator 7N-10,000MBP-T =680ma
https://www.youtube.com/watch?v=ebxqe1XviDg

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#7 Непрочитанное сообщение YL2GVC » 29 ноя 2021 23:54

Neighbor transmits on ICOM-910, 100W, 1km away 8-) By the way, it is with new Yuri EU2AV 144Mhz transverter 8-)
https://youtu.be/2QAEOs_q9SM

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#8 Непрочитанное сообщение YL2GVC » 30 ноя 2021 00:01

Some images 8-)
Вложения
Anvelina PROIII-REV3.4E .jpg
Anvelina III Gold.jpg
Anvelina bare board.
Anvelina III Gold.jpg (387.94 КБ) 2058 просмотров
photo_2021-11-28_19-49-01.jpg
Populated Anvelina board, newest 3.4E version.
photo_2021-11-28_19-49-01.jpg (186.19 КБ) 2058 просмотров
photo_2021-11-27_16-31-34.jpg
Anvelina BPF/PA board with 144Mhz transverter board.
photo_2021-11-27_16-31-34.jpg (155.76 КБ) 2058 просмотров

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#9 Непрочитанное сообщение YL2GVC » 30 ноя 2021 01:20

https://youtu.be/qakGzktRxEw

One more demonstration 8-) Later I will translate it ;)

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#10 Непрочитанное сообщение eu2av » 30 ноя 2021 23:51

Here is another photo of the amplifier board, a current sensor and voltage measurements were added in the latest revisions. There is also a jumper on the board, when it is activated, the reverse mode turns on- that is, when we work on the VHF channel of the receiver RX2 is connected to the input RX1, so in VHF mode with the second receiver I can listen to 160-6m, which seemed very convenient to me. If the JP2 jumper is not soldered, everything will be by default (without reverse)
IMG_20210712_053305.jpg

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#11 Непрочитанное сообщение eu2av » 24 апр 2022 02:22

Got a new case ordered from Oleg EU1AV that's what how does it look's like :)
https://www.youtube.com/watch?v=LlYkePfVGbo&t=475s

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#12 Непрочитанное сообщение IK2LRN » 12 июл 2022 19:38

Hi All,
i have successfully implemented Avelina SDR III with its 100W Amplifier.
73
Luca IK2LRN
Italy
IMG_1245.jpeg

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#13 Непрочитанное сообщение eu2av » 14 июл 2022 01:19

Luka Welcome This is good news for me Thank you :)
I wonder what kind of power turned out on the 6m range ?

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#14 Непрочитанное сообщение IK2LRN » 14 июл 2022 08:55

Hi Yury,
at 6m maximum power is about 80w
I am currently start to build your new 3.6 version.
73
Luca

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#15 Непрочитанное сообщение IK2LRN » 14 июл 2022 21:40

Hi Yury, in the new Amplifier version 3.6 there are some capacitors and resistors with the indication R* and C*. Please refer with the red circles in the attached picture. Please let me know what does it mean.
73
Luca
536EC4C2-0A0B-4BF8-A433-F47BE10B9307.jpeg

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#16 Непрочитанное сообщение eu2av » 15 июл 2022 01:40

Luka Hi! I have about the same result on 6m, by selecting capacitors in the output transformer, you can bring the output power to 100 watts, but I think it is absolutely not necessary for 6m. This is the version of the board (3.6.0) practically does not differ from version 3.6.1, so it is better to use Bom 3.6.1 there the values of the capacitors in the LPF are well debugged. As for the C* capacitors, this can additionally be used for better matching, you can set values of 100p, in most cases you can not use (No/set). R* definitely does not need to be set, it was for an experiment.

You may have already paid attention to the new bom, for the PS-A function to work well, you had to change the values of the resistors R60, R61 by 10k. If the transistors are original RD100, then the resistors R47, R48 by 5.1K, but with such changes there is a problem with D51, you need to make a revision, after which the quiescent currents will be easier to set. If RD100 is a well-matched pair, then you can leave it as it is (D51).
Rev-3.6.0 SDR_BPF1.BPF2.PA100Watts BOM.rar
(289.84 КБ) 12 скачиваний

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#17 Непрочитанное сообщение IK2LRN » 15 июл 2022 13:16

Hi Yury,
thanks for the detailed information.
In order to avoid confusion i ask if you can please provide the updated schematics.
For the implementation i have used as reference
the values indicated in 3.6.0 schematics.
I have not used bom
73
Luca IK2LRN

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#18 Непрочитанное сообщение eu2av » 15 июл 2022 14:40

Luka Hello! This is the right approach to use the scheme :) Below I attached an archive with diagrams and revision. The photo shows that in the gap of the legs 1,2 (D51) it is necessary to put resistors of 20k, for more accurate operation of the thermistor they can be more accurately selected.
BPF2-1_PA_Anvelina-SDR BOM_REV3.rar
(2.42 МБ) 11 скачиваний
Дороботка по термостабилизации.png
Дороботка по термостабилизации.png (14.39 КБ) 248 просмотров

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#19 Непрочитанное сообщение IK2LRN » 16 июл 2022 16:16

Hi Yury,in order to update to 3.6.1 i have replaced 1) allmost all the LPF capacitors 2) R36 1.2K 3) R56-59 22ohm 4) R60-61 33K 5) add 2x22k at D51 (see picture).
If you remmember others variations please let me know.
Thanks, 73
Luca IK2LRN

IMG_1269.jpg

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#20 Непрочитанное сообщение eu2av » 17 июл 2022 17:40

Luke Good evening! In the new BOM 3.6.0, I managed to find the right values of the capacitors, I got good repeatability, I used these capacitors https://lcsc.com/product-detail/Multila ... 07177.html
As for the resistors R61, R62, an increase in the value only has a better effect on the operation of PS-A, I tried to reduce it to 10k and did not see much difference.

Luka, you did everything right, I did it differently, used a blade, made cuts of the tracks at the right points, I attach a photo below.
► Показать
Let me remind you that if the RD100 is well matched, this modification can be omitted, after the alteration I did not see absolutely no difference in work (PA). If do not do this revision, the only thing that is not convenient is setting the voltages at the gates of transistors.

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#21 Непрочитанное сообщение IK2LRN » 22 июл 2022 14:30

Hi Yuri, which is the best companion antenna tuner solution for your 100W amplifier?
Do you have think about integrate ATU in your enclosure?
I have already ordered your new enclosure, It should arrive in soon.
I have an antenna wire dipole than antenna tuner is absolutely required.

73

Luca IK2LRN

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#22 Непрочитанное сообщение eu2av » 22 июл 2022 20:51

Luka Good evening! On the BPF-PA board, just in case, such an option was provided, if you do not solder the corresponding jumper that is located on the back of the board, then we can connect any tuner to the connectors that are written Option ATU, so we connect it in front of the antenna switch, which is convenient. The simplest solution for today! I would recommend using a simple atu of the n7ddc design, also do not forget that any tuner makes a deterioration in the bypass mode on the hf bands (10-6m), therefore it is better to use the 5x5 version. It is not difficult for me to develop the tuner card itself, the whole problem is in writing software, the best option is to write a tuner program in Thetis itself, so it will be possible to organize memory for three antennas and the most convenient thing is that the ATU will be able to switch memory in reception mode, three or four pins from the SDR board are enough to control the tuner card, for example with J18. I myself know very superficially (C#), so it would be interesting to find someone who could join such an idea.

As for where to place the atu, if you do not plan to make a VHF converter, you can install a tuner in its place.

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