EU1KY AA Firmware stabilization version update (V0.53) and Test about Extended WSPR Band (4m, 2m, 630m, 2190m)
EU1KY AA Firmware stabilization version update (V0.53) and Test about Extended WSPR Band (4m, 2m, 630m, 2390m)
Since Version 0.53 did not cause major problems, I moved 0.53 to the stable version.
My next task is to free memory to add other features. Maybe it will be version 0.6 and it will not be released.
I will release the source to github after a few days of preparation after Version 0.7 is released.

1.Download stabilization version
Click below for more information on the stabilization version.
http://www.hamskey.com/2019/03/eu1ky-antenna-analyzer-cec-stabilized.html
Version 0.53
http://www.hamskey.com/2019/05/release-eu1ky-aa-firmware-cec-version.html
How to create AA
(Information is constantly being updated)
http://www.hamskey.com/2019/02/assembling-faa-450-antenna.html
2.Test about Extended WSPR Band
Four WSPR bands have been added in V0.5.
2190m (136Khz), 630m(474Khz), 4m(70Mhz), 2m (145Mhz)
Maybe your Si5351 chip will use a 27Mhz crystal. In such a case, the WSPR transmission may be unstable in the 2m band.
The larger the frequency, the greater the error in the crystal.
If a more stable oscillator such as TCXO is used, it is expected to be used stably in 2M band.
Please use WSPR only for the four bands added at this version.
All protocols are available on the other bands (160m ~ 6m)
2.1 Test WSPR on 2m band
In my case, I had to reduce 300Hz in 2m band to transmit at 1500Hz.
If you want to use WSPR in 2m band, please check if it is transmitted at 1500Hz before using it.
WSPR should be transmitted in the vicinity of 1500Hz.


Receiving used FT-817.

Test Video
2.2 WSPR Test on 2190m



2.3 WSPR Test on 630m


Test Video for 2190m, 630m
Thank you for reading
Ian KD8CEC
2190m (136Khz), 630m(474Khz), 4m(70Mhz), 2m (145Mhz)
Maybe your Si5351 chip will use a 27Mhz crystal. In such a case, the WSPR transmission may be unstable in the 2m band.
The larger the frequency, the greater the error in the crystal.
If a more stable oscillator such as TCXO is used, it is expected to be used stably in 2M band.
Please use WSPR only for the four bands added at this version.
All protocols are available on the other bands (160m ~ 6m)
2.1 Test WSPR on 2m band
In my case, I had to reduce 300Hz in 2m band to transmit at 1500Hz.
If you want to use WSPR in 2m band, please check if it is transmitted at 1500Hz before using it.
WSPR should be transmitted in the vicinity of 1500Hz.


Receiving used FT-817.

Test Video
2.2 WSPR Test on 2190m



2.3 WSPR Test on 630m


Test Video for 2190m, 630m
Thank you for reading
Ian KD8CEC
WSPR is an excellent antenna analyzer supplement. I climb up on the roof, set up the antenna and use WSPR to test the directional features. Nothing else I need, just an internet smartphone.
ReplyDeleteTCXO is a must for higher bands. Not every TCXO is good, some are jumping. I have excellent results with TCXO Abracon ASTX-H11-27 (purchased at Mouser).
Thank you for important information for TCXO
DeleteI would like to order one more STM32F746 board from the mouser for the next project (Ham tool kit). I will order the ASTX-H11-27 together.
I like WSPR very much. Because I am in a fairly bad QTH, I have to adjust the condition of the antenna to the best.
Ian KD8CEC
I would see problems with the very small footprint (3.2 * 2.5 mm) of the ASTX.
DeleteBetter for me would be 5.0 * 3.2 mm, like FOX924B (also at Mouser).
What about this TCXO?
Wolfgang DH1AKF
Hello Ian, first thank you for your work. In 0.53 i have found one error:
ReplyDeleteIf i enter frequency sweep an change between menue1 and 2 severall times ,
the most right button show the text frequency or the letter d . After i changed between menue 1 and 2 a couple of times,
the button text shows frequency , as it should be.
P.S: above post --> ...after Startup ....
ReplyDeleteI confirm, I have the same thing.
DeleteRT6M
DL5SFC
DeleteThank you for feedback.
I will fix this in the next version. I am preparing to release version 0.7.
Ian KD8CEC
This comment has been removed by the author.
ReplyDeleteHello Ian,
ReplyDeleteAnother error I have found is the Generator AM and FM buttons do not work correctly. The device generates a clean carrier until the AM or FM button is pressed. The frequency then becomes very unstable and the device "locks up" for a few seconds.
Feature request - is it possible to have the device generate RF in AM and FM with a modulated 1 KHz tone? I'm not sure this is possible with this hardware, but I thought I would ask :)
VK3XPT
DeleteThank you for comment.
I have not yet begun working on the 'RF Generator' feature.
It is not a complete FM / AM modulation. Especially for AM, we will need one mixer circuit.
A few months ago I made a library that controlled the Si5351 at high speed and I did some experiments with it.
It was an experiment to make FM modulation with Si5351 only (without any additional circuit). It generates and transmits an FM signal with a simple melody, which is accompanied by quite a lot of noise.
If I have tried several times and it is worth using, I will apply it to 'AA'.
Ian KD8CEC
Dearest Esteems,
ReplyDeleteWe are Offering best Global Financial Service rendered to the general public with maximum satisfaction,maximum risk free. Do not miss this opportunity. Join the most trusted financial institution and secure a legitimate financial empowerment to add meaning to your life/business.
Contact Dr. James Eric Firm via
Email: fastloanoffer34@gmail.com
https://urgentloanoffer22.blogspot.com/
Whatsapp +918929509036
Best Regards,
Dr. James Eric.
Executive Investment
Consultant./Mediator/Facilitator
dotMirror is a team of performance-driven, dedicated, and experienced individuals who have been working in Search Engine Optimization and Web Design and Development for a long time. Our main goal is to assist our clients with their websites so that they get the best value out of their sites.
ReplyDeleteWe are here for providing you with different SEO and Web Development services. Our SEO service includes- Keyword Research Service, SEO Backlinking Service, SEO Audit, Full SEO Solution Service, Monthly SEO Service, and Local SEO services.
Our goal is to assist other businesses in growing. Whatever your goods, services, or expertise, we get to know your company goals and become your greatest partners. There is no project too big for us, and no goal out of reach. Tell us about your mission, and we’ll keep working until you’ve accomplished it.
Contact us on:
Facebook: https://www.facebook.com/dotmirror
Skype: https://join.skype.com/invite/yE6vG6wRLKMf
Email: hello@dotmirror.com
Website: https://dotmirror.com/
ReplyDelete567 live– Siêu ứng dụng giải trí live chat cùng idols mới và hấp dẫn nhất năm. Vui giải trí cùng dàn mỹ nhân cực đẹp.
567 live– Siêu ứng dụng giải trí live chat cùng idols mới và hấp dẫn nhất năm. Vui giải trí cùng dàn mỹ nhân cực đẹp.
Hotlivetv.net Provides the Latest Video Clips of all the top celebrities & Celebrities from all over the world. We provide you with the best video clips from all over the world so you can enjoy them with your friends and family. Our aim is to provide the latest video clip so that you can watch it whenever you want to watch it hot live app.net.
ReplyDeleteIt is estimated that 30% of people in developed countries gamble on various events. Online gambling has grown even faster than land-based gambling, and there appear to be more gamblers every year looking for new ways to gamble. yolo68 is such a website for online betting. Visit: yolo68
ReplyDeleteAMOVIBE is a brand of sex toys which offers innovative products with a feeling of realistic love play. This brand offers unique design, luxury and convenient products to people, giving them pleasure and unforgettable experiences. amovibe
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteThis comment has been removed by the author.
ReplyDelete