Search found 489 matches

by DL2MAN
08 Dec 2022, 08:13
Forum: General Information
Topic: Toroid information
Replies: 4
Views: 131

Re: Toroid information

Hi, I could spot a single deviation from my Schematic. L52, where I give 14T while Sunny says 15T. I have no Idea why. Either it´s a mistake or she found out, second harmonic notch was more accurate this way. (with the Toroids, she is supplying - My Values were determined for Amidon Toroids) Besides...
by DL2MAN
07 Dec 2022, 20:17
Forum: General Information
Topic: Toroid information
Replies: 4
Views: 131

Re: Toroid information

Can you please Show whats different? I assume, Sunnys team experimented with their supply of toroids and came up with different amount of Turns for best Performance. This might save you some Tuning effort. But to be Sure, i need to See the difference. Anyway: If you follow my instructions and tweak/...
by DL2MAN
06 Dec 2022, 08:46
Forum: Troubleshooting
Topic: Fix for bad sideband suppression on 30 and 20m Band
Replies: 42
Views: 6562

Re: Fix for bad sideband suppression on 30 and 20m Band

“Thanks ! We will try that.” So,I am confused, was this a joke or was it serious??? This was not a joke, I simply have no rig, that is affected. It´s hard to test if a problem is gone, that was not there in the first place.... So I´m waiting for the right moment, or rig, or whatever. At this point ...
by DL2MAN
05 Dec 2022, 11:59
Forum: General Information
Topic: Modifying pcb to fit in peli case
Replies: 5
Views: 114

Re: Modifying pcb to fit in peli case

It´s a 4 Layer PCB and I would not recommend sawing off anything.....

73 Manuel, DL2MAN
by DL2MAN
02 Dec 2022, 13:52
Forum: General Information
Topic: CAT Commands
Replies: 2
Views: 122

Re: CAT Commands

by DL2MAN
01 Dec 2022, 18:07
Forum: General Information
Topic: Mic Gain
Replies: 21
Views: 1844

Re: Mic Gain

Just look in the Video description ;)
by DL2MAN
30 Nov 2022, 14:47
Forum: Troubleshooting
Topic: Fix for bad sideband suppression on 30 and 20m Band
Replies: 42
Views: 6562

Re: Fix for bad sideband suppression on 30 and 20m Band

Dear colleagues, despite the fact that my messages are deleted due to the fact that I am from Russia, Are you a little paranoid ? Noone here has deleted anything. There are 4 postings in a row from you. Visible for anyone. I know you´re having a hard time with borders, but please be careful with su...
by DL2MAN
30 Nov 2022, 14:41
Forum: General Information
Topic: Mic Gain
Replies: 21
Views: 1844

Re: Mic Gain

by DL2MAN
28 Nov 2022, 12:31
Forum: Troubleshooting
Topic: UpTech Store Efficiency Kit Lo
Replies: 4
Views: 254

Re: UpTech Store Efficiency Kit Lo

dl6sez wrote: 27 Nov 2022, 21:22 your (tr)uSDX is really bad OM!
You made my day !
dl6sez wrote: 27 Nov 2022, 21:22 I think you are hunting mice... :)

73 de Chris
Exactly ! Calibrate your internal measurements before judging your rig s efficiency based on that.

73 Manuel; DL2MAN
by DL2MAN
28 Nov 2022, 09:41
Forum: Troubleshooting
Topic: No display on startup (SOLVED)
Replies: 6
Views: 221

Re: No display on startup

Hi,

Just measure the Pins on the Display. GND and VCC should be present.

73 Manuel; DL2MAN
by DL2MAN
28 Nov 2022, 08:56
Forum: Troubleshooting
Topic: No audio - RX or TX
Replies: 4
Views: 141

Re: No audio - RX or TX

Did you unplug Key/external mic, when trying internal mic ?
´cause once you put something in the mic socket, internal mic is disconnected....
You can also check wether the switch of your 3,5mm socket is broken....

73 Manuel; DL2MAN
by DL2MAN
25 Nov 2022, 15:37
Forum: General Information
Topic: Limit power for TX
Replies: 3
Views: 278

Re: Limit power for TX

Pa bias max should be Set for max efficiency and Not be touched beyond that.
If you want to Limit Output Power: simply do so by reducing Input voltage.

73, Manuel DL2MAN
by DL2MAN
23 Nov 2022, 08:25
Forum: Troubleshooting
Topic: High SWR and Power - Bad transformers connections ?
Replies: 27
Views: 3091

Re: High SWR and Power - Bad transformers connections ?

Please post a detailled picture of your T1 and T2 Transformers on the affected Boards.
It´s most likely either: cold solder joint or not wound in the right direction.

73 Manuel; DL2MAN
by DL2MAN
15 Nov 2022, 09:39
Forum: Troubleshooting
Topic: Plugged Power plug into the PA Jack. Now dead.
Replies: 1
Views: 186

Re: Plugged Power plug into the PA Jack. Now dead.

Most likely your ATMega is dead, as the PA Port is directly wired to the microcontroller. If you´re lucky that´s it. If not, there´s more to check.... AtMega is easy to replace, if you have hot air soldering station. If not: Ask someone in your local ham club, if he could help. There´s usually alway...
by DL2MAN
15 Nov 2022, 09:37
Forum: Troubleshooting
Topic: The mysterious "Check the PTT Switch" warning
Replies: 7
Views: 417

Re: The mysterious "Check the PTT Switch" warning

This is possibly a sensitivity issue of the microphone. Try to attach external Mic, so internal mic is disconnected.

73 Manuel; DL2MAN
by DL2MAN
15 Nov 2022, 09:34
Forum: General Information
Topic: Assembled 8 band 80-10 (tr) uSDX
Replies: 6
Views: 596

Re: Assembled 8 band 80-10 (tr) uSDX

Firmware would be no issue, but available space is, when we want to keep the form factor and SWR + Efficiency measurement. I had 8 Bands on the same form factor, but without that measurement stuff. https://dl2man.de/8-band-rf-board/ But for (tr)uSDX it is not planned. Maybe for the next big thing, b...
by DL2MAN
07 Nov 2022, 10:41
Forum: Troubleshooting
Topic: Fix for bad sideband suppression on 30 and 20m Band
Replies: 42
Views: 6562

Re: Fix for bad sideband suppression on 30 and 20m Band

In the Titel mentioned Sideband suppression is an rx issue. What Kevin and you are seeing, is a nearfield Effect of tx. Add at least 60dB attenuation between (tr)uSDX and Control rx. Here is a Text that disappeared from the YouTube comments (Not caused by Kevin): Guido and me were joking today about...
by DL2MAN
07 Nov 2022, 07:51
Forum: General Information
Topic: Pin header questions
Replies: 2
Views: 225

Re: Pin header questions

Would you mind Sharing a picture of your Problem ?

73 Manuel DL2MAN
by DL2MAN
07 Nov 2022, 07:21
Forum: General Information
Topic: 3D printing service
Replies: 1
Views: 238

Re: 3D printing service

Wegen using jlc PCB printing Service, i suggest Nylon as Material.
Try to get black Material for best UV Résistance.

73 Manuel DL2MAN
by DL2MAN
30 Oct 2022, 15:58
Forum: General Information
Topic: is the Chinese uSDX a clone of (tr)uSDX?
Replies: 3
Views: 388

Re: is the Chinese uSDX a clone of (tr)uSDX?

No, (tr)uSDX ist NOT Open Hardware ! It is under cc-by nd license. ND Stands for No Derivates ! @thread Starter: No Support for unauthorized Chinese Clones Here. Please ask the seller. @both: Read and follow the Forum Rules! https://forum.dl2man.de/viewtopic.php?p=1230#p1230 Topic closed 73 Manuel D...
by DL2MAN
28 Oct 2022, 07:39
Forum: General Information
Topic: Classical and High Bands Boards now Available for sale !
Replies: 32
Views: 3430

Re: Classical and High Bands Boards now Available for sale !

Yeah, Guido was friendly enough to check everything, this time. Thank you Guido !

73 Manuel; DL2MAN
by DL2MAN
26 Oct 2022, 10:06
Forum: General Information
Topic: Classical and High Bands Boards now Available for sale !
Replies: 32
Views: 3430

Re: Classical and High Bands Boards now Available for sale !

I was also interested, I consulted UpTechStore and they answered me: "It depends on Manuel and Guido testing the board". @DL2MAN Manuel, is there any news about it? How is that review going? Thank you César CA7OKD I´m sorry, I am very busy with work and other hobbies at this time of the y...
by DL2MAN
25 Oct 2022, 07:34
Forum: Troubleshooting
Topic: Pre-built by New DIY Tech, crashes a lot. (resolved)
Replies: 8
Views: 687

Re: Pre-built by New DIY Tech, crashes a lot. (resolved)

For Crashs and Lockups: First thing to do is: Reset (Press rotary Button while powering up) If that doesnt help: Update Firmware (try latest Beta, as it´s always has most bug fixes) Regarding the random power measurements, people are posting here in the forum and seem to be concerned about, using on...
by DL2MAN
20 Oct 2022, 10:44
Forum: Troubleshooting
Topic: No power on transmit (PWR 0.00W)
Replies: 39
Views: 2008

Re: No power on transmit (PWR 0.00W)

I managed to blow another FDT86256 mosfet this morning in the high-config rig. (...)13v supply (...)With key down after maybe 15 minutes of the activity, I watched the output voltage suddenly ramp down and die out, after I had the key down for about 15 sec, while I was measuring the output on 10m. ...