Search found 215 matches

by Faraaz VK4JJ
26 Jul 2022, 10:23
Forum: Troubleshooting
Topic: Solution for (tr)uSDX programming via USB Issue
Replies: 12
Views: 1258

Re: Solution for (tr)uSDX programming via USB Issue

Hi Richard,

Double check you are entering the correct serial when you go to download the firmware. Send us a photo of the serial you are showing on the screen.
by Faraaz VK4JJ
12 Jul 2022, 10:21
Forum: General Information
Topic: Add On Features 2023?
Replies: 2
Views: 305

Re: Add On Features 2023?

I would suggest no, given the already packed memory of the Atmega 328P.
by Faraaz VK4JJ
27 May 2022, 00:52
Forum: General Information
Topic: Custom Packaged (tru)SDX
Replies: 2
Views: 435

Re: Custom Packaged (tru)SDX

This is a very nice build indeed.
by Faraaz VK4JJ
19 May 2022, 09:52
Forum: General Information
Topic: tr(Usdx) for sale
Replies: 1
Views: 426

Re: tr(Usdx) for sale

Moved to main forum.
by Faraaz VK4JJ
08 May 2022, 09:45
Forum: General Information
Topic: Interesting test on alternative band trials
Replies: 5
Views: 511

Re: Interesting test on alternative band trials

Robert, what inductance calcs were you using?

Personally, I have found that many of the calculators online are of no use for RF work.

I use:

https://owenduffy.net/calc/toroid3.htm
by Faraaz VK4JJ
07 May 2022, 01:41
Forum: General Information
Topic: Where can I buy a case?
Replies: 1
Views: 274

Re: Where can I buy a case?

Any reason why the don't offer a case with the kit? Have you emailed them and asked them? This is a question that needs to be directed to a seller, or supplier. We cannot answer that question on behalf of a third-party. If I get the kit, where might I pick up a case. Any 3D-printing service availab...
by Faraaz VK4JJ
04 May 2022, 06:29
Forum: General Information
Topic: Short Encoder
Replies: 6
Views: 511

Re: Short Encoder

Looks nice!
by Faraaz VK4JJ
03 May 2022, 10:11
Forum: General Information
Topic: Hi Band build
Replies: 3
Views: 422

Re: Hi Band build

What do we know so far about turns on the toroids for these bands so far? What about cap values is there any definite answers to what should be used? I haven't seen anyone publish any data for inductor/capacitor values for the high-band board as yet. I have the theoretical values sitting here on my...
by Faraaz VK4JJ
03 May 2022, 07:46
Forum: Troubleshooting
Topic: Strange noise
Replies: 8
Views: 803

Re: Strange noise

This is known, and a consequence of some form of electrical noise within the circuitry.
by Faraaz VK4JJ
02 May 2022, 08:19
Forum: Troubleshooting
Topic: SSB BW Settings...
Replies: 9
Views: 800

Re: SSB BW Settings...

Good idea with using the FFT of e.g. Audacity. I am just moving all data and applications from that Laptop to a new machine though. Maybe i do it if the new PC is ready to use. I think i will just post the question to that other Q&A thread, then the author's can say: You are right or you are wr...
by Faraaz VK4JJ
02 May 2022, 08:14
Forum: General Information
Topic: How to remove or change callsign?
Replies: 1
Views: 416

Re: How to remove or change callsign?

Reflash the firmware with no callsign entered in the download box.
by Faraaz VK4JJ
01 May 2022, 22:49
Forum: Troubleshooting
Topic: Installing firmwire, got verification error
Replies: 2
Views: 363

Re: Installing firmwire, got verification error

Your connections to the ICSP header.

Never use the - F flag, if you were trying that too.
by Faraaz VK4JJ
01 May 2022, 12:38
Forum: General Information
Topic: OLED Display
Replies: 26
Views: 2605

Re: OLED Display

73 ! Thanks to everyone who participated in this device. I made it successfully (tr)uSDX and made several SOTA activations already.Works great ! But this OLED type is absolutely not readable on field operation .. not even in the shadows in my region. I made also devices with similar display. dmr-ho...
by Faraaz VK4JJ
30 Apr 2022, 22:54
Forum: Troubleshooting
Topic: Operating tr(u)SDX at low efficiency
Replies: 4
Views: 526

Re: Operating tr(u)SDX at low efficiency

It is safe. It is a question of efficiency only (power out / power in).
by Faraaz VK4JJ
30 Apr 2022, 10:48
Forum: Troubleshooting
Topic: (tr)uSDX Firmware update problem ... (AVRDUDESS)
Replies: 2
Views: 325

Re: (tr)uSDX Firmware update problem ... (AVRDUDESS)

I think this (tr)uSDX has a hardware problem ...???
Have you contacted the seller then?
by Faraaz VK4JJ
28 Apr 2022, 23:06
Forum: General Information
Topic: New assembled (tr)uSDX on the way!
Replies: 2
Views: 344

Re: New assembled (tr)uSDX on the way!

Welcome, Keith. 1. DC power plug https://www.aliexpress.com/item/4001145471168.html?algo_exp_id=b367546f-c9d7-45bb-b394-868ea12ef9bf-18&pdp_ext_f=%7B%22sku_id%22%3A%2210000014888664130%22%7D&pdp_npi=1%40dis%7CAUD%7C%7C1.47%7C%7C%7C%7C%7C%400bb0623f16511870829584998ef094%7C10000014888664130%7...
by Faraaz VK4JJ
28 Apr 2022, 23:02
Forum: General Information
Topic: My thoughts so far
Replies: 4
Views: 530

Re: My thoughts so far

Seems like you were expecting a Yaesu in a nice box with a thick manual for $100, rather than two PCBs and a bagful of components ;)

PS: did you ever try to flash the bootloader via ICSP that was suggested to you on your other thread?
by Faraaz VK4JJ
28 Apr 2022, 22:36
Forum: Troubleshooting
Topic: UPLOAD BOOTLOADER
Replies: 34
Views: 2093

Re: UPLOAD BOOTLOADER


It is for this fear of mine in working on SMDs that I have chosen to take the 12 volts elsewhere, see photo.

Where have you tapped off the 12V to? I'm confused.
by Faraaz VK4JJ
28 Apr 2022, 22:34
Forum: Troubleshooting
Topic: UPLOAD BOOTLOADER
Replies: 34
Views: 2093

Re: UPLOAD BOOTLOADER

Congratulations to you, Luca66. Next week upon arriving home i will try to load firmware via ISP. Many thanks to Faraaz, VK4JJ for the identification of possible hardware failures in usb path. Luca, if you find something interesting let us know in this topic. Below, just for curiosity its the print...
by Faraaz VK4JJ
28 Apr 2022, 11:12
Forum: General Information
Topic: Manual page
Replies: 1
Views: 368

Re: Manual page

Documentation is a work in progress - please be patient. For now, the manual pages and youtube videos on DL2MANs account are what we have. As for the CQ message, it is intuitive. Play around with it, click the encoder, press the buttons. I'm sure you will work it out in under thirty seconds. As for ...
by Faraaz VK4JJ
28 Apr 2022, 07:04
Forum: Troubleshooting
Topic: UPLOAD BOOTLOADER
Replies: 34
Views: 2093

Re: UPLOAD BOOTLOADER

I'll check the components. It will take a very powerful magnifying glass. I do not hide that I do not feel comfortable working on SMD components, but I will try. One thing is for sure, the problem lies after the ch340. https://www.ebay.com.au/itm/174830517628 I bought this device (before my microsc...
by Faraaz VK4JJ
28 Apr 2022, 01:22
Forum: Group Buys
Topic: First commercial (tr)uSDX Kit
Replies: 24
Views: 4497

Re: First commercial (tr)uSDX Kit

(mines not a *Rxxxx* and I have tried published Values from Manuels Schematics, and varied many things [worse is easy!] but have not gotten to 80% or > yet, on 20, but plan to!) Mine is similar. It is impossible to get good efficiency on 20M (not *Rxxxx* kit) - currently running around 65% efficien...
by Faraaz VK4JJ
28 Apr 2022, 01:05
Forum: Troubleshooting
Topic: UPLOAD BOOTLOADER
Replies: 34
Views: 2093

Re: UPLOAD BOOTLOADER

Hallelujah. I don't like having a beta firmware Doesn't look like you have many other options ;) Don't worry about it being a beta version - it is stable. I have only ever used the beta versions. Check R20, R28, R29, R30 - ensure they are soldered correctly on the pads and not open circuit. Check C4...
by Faraaz VK4JJ
27 Apr 2022, 08:06
Forum: Troubleshooting
Topic: Error during upload firmware
Replies: 7
Views: 568

Re: Error during upload firmware

heinrich wrote: 26 Apr 2022, 10:36 It returns the signature of the mcu:
Detected 1e950f = ATmega328P
Connections are find. Try reducing your baud rate.