Introducing UV-K5 Version 0.2C (APRS)
This version is a test version.
If there are no major problems, the version number will be changed to 0.2P and released again in one week. If you want a stable version, please download it after one week.
0.About 0.2C
Changed release from 0.2B to 0.2C.
In 0.2B, we fixed bugs that testers provided feedback on.
1.SSID storage problem
2. Decode error when transmitting GPS coordinates
3. Digi ID can be omitted in case it is not used -> An error will occur if omitted according to the APRS regulation document and protocol.
You can use it by setting SSID to 0.
If you don't need DigiID, set DigiID to 0.
In 0.2B, we fixed bugs that testers provided feedback on.
1.SSID storage problem
2. Decode error when transmitting GPS coordinates
3. Digi ID can be omitted in case it is not used -> An error will occur if omitted according to the APRS regulation document and protocol.
You can use it by setting SSID to 0.
If you don't need DigiID, set DigiID to 0.
----------------------- About 0.2B ---------------------------
In Version 0.2B, APRS transmission function was added. I don't know much about APRS, and I haven't actually been able to test transmission from the UV-K5 to the APRS receiver.
I did the test with FT-817 and software called Softmodem.
The AX.25 modem, which is composed of software, requires precise time control, but UV-K5's MCU is not equipped with a crystal, making precise control difficult.
However, transmission and reception was confirmed at about 1200 BPS. Please test to see if it actually works.
1.APRS frequency setting
The APRS frequencies used vary by country and region. Please set the frequency appropriate for your region.
Usually, one APRS frequency is used, but since it may differ depending on the region, I set two frequencies for APRS.
In most areas, you will probably just need to enter the same frequency.
1.1 Please select the APRS frequency appropriate for your region.
Go to ChSave menu.
2.APRS basic settings
To use APRS, you must enter some information appropriate for your region.
Go to U.INFO in the setup menu.
2.1 Enter the destination of APRS. (Less than 7 characters)
Since I don't know APRS well, I treated all APRS-related content as optional.
(Less than 7 characters)
2.3 GPS Location
GPS information must be entered with one decimal point.
2.5 Enter the message to be sent in the APRS Status.
Currently, only 10 characters are supported, but when the APRS. if function is included in version 1.0, the number of characters will be increased or it will be possible to input in terminal mode.
3.1 Enter the T.APRS menu
The frequency for what you want to transmit is automatically displayed on the screen.
3.2 To transmit, press the menu button twice or press PTT for 1 second.
3.3 After changing the item, you can transmit it by pressing PTT.
Enter your call sign in My call in U.Info.
4. APRS option items
Options set in UV-K5 are applied to items A to F below, respectively.
A : My Callsign, B : My SSID, C:AprsDST, D:AprsDigi, E:DigiID
Please refer to the video for MySSID and DigiID settings and testing.
When SSTV is transmitted, your call sign will be transmitted in F2A mode. It is similar to the SSTV program used on computers.
The SSTV (CW) video will be posted on YouTube within 2 days and included in this content.
Download Firmware - Changed from Version 0.2B to 0.2C and the URL is the same.
https://github.com/phdlee/uvk5cec/releases/tag/v_0.2B
KD8CEC
Dear KD8CEC, I`m using the 0.1P and 0.1X, I use a audio cable, one side connect to the K5, and the other side connect to the L&MAO (a paddle key), how should I change the audio cable, it is a little bit different with your situation(your paddle key picture). Could you give explan? If you can drwa a picture , would be better. Thanks a lot.
ReplyDeleteI don't seem to have the AprsDST, option in my U.Info menu. I can see that APRS is sending to a destination APK5C1, but there's no place I can find to change this. Using C0.3D
ReplyDeleteCan you help with any guidance please?
The UV-K5 Version 0.2C seems like cool news as it contains better features and options! Such innovations are an indication that technology is constantly being produced in its advance to suit our demands. In a different note, if you are in the capital and you are working on projects involving thesis, you could use thesis writing service in islamabad to help you in providing the best results of your research.
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