Date   

Re: KIT LPF

Bob Benedict, KD8CGH
 

Bernard
  There is a pic of the filter holder I made here  https://groups.io/g/QRPLabs/message/49787
and another one here  https://groups.io/g/QRPLabs/message/49673

I attached the holder to the nanoVNA and then ran the calibrations on the holder. I left the holder empty and ran "open", plugged a wire in from the signal to ground on the CH0 side and ran "short", plugged a 50 ohm resister in across signal and ground and ran "load", left the resister in and ran "isolation" and finally removed the resister and ran two wires from Ch0 to CH1 sides at signal and ground to calibrate "through".

--
  73
    KD8CGH


Test

Larry KA5T
 

Test


Re: #Balloon #OT N6CVO-13 Launched #Balloon #ot

Mike Besemer - WM4B
 

Seeing it now.  Right through my old stomping grounds!

 

Mike

WM4B

 

From: QRPLabs@groups.io [mailto:QRPLabs@groups.io] On Behalf Of Mike Besemer - WM4B
Sent: Sunday, July 12, 2020 4:07 PM
To: QRPLabs@groups.io
Subject: Re: [QRPLabs] #Balloon #OT N6CVO-13 Launched

 

I’m only  seeing one position report.  What time did you launch?

 

Mike

WM4B

 

From: QRPLabs@groups.io [mailto:QRPLabs@groups.io] On Behalf Of BrianB
Sent: Sunday, July 12, 2020 3:14 PM
To: QRPLabs@groups.io
Subject: [QRPLabs] #Balloon #OT N6CVO-13 Launched

 

Guys,

This morning we launched another balloon from the desert in Southern California.

Transmissions are 10mW on 20m and 30m using WSPR with the altitude encoded into the PWR field. Currently it has leveled off above 43k’.

I do have a script running thanks to Graham VE3GTC which should decode the altitude and post it to APRS.fi each time the balloon changes grid squares. APRS Call is N6CVO-13

Specs:

ZachTek Tracker (lightened)
Dual Solar Panels (lightened)
20m dipole (super light)
Total flight ready payload weight 12.1gr

SBS-12 balloon
Hydrogen 
8gr free lift

Notes:

WSPRnet Map plots the target in the middle of the grid square.

APRS.fi should get updated from WSPRNET every fifteen minutes via a Python Script if the balloon has entered a new grid square.

APRS.fi plots the target in the lower left hand corner of the grid square but adds the decoded altitude.

None of this mismatch within the Grid Square matters as long as we are getting positions while over the oceans, Africa, etc.

73,
BrianB 
N6CVO


Re: #Balloon #OT N6CVO-13 Launched #Balloon #ot

Mike Besemer - WM4B
 

I’m only  seeing one position report.  What time did you launch?

 

Mike

WM4B

 

From: QRPLabs@groups.io [mailto:QRPLabs@groups.io] On Behalf Of BrianB
Sent: Sunday, July 12, 2020 3:14 PM
To: QRPLabs@groups.io
Subject: [QRPLabs] #Balloon #OT N6CVO-13 Launched

 

Guys,

This morning we launched another balloon from the desert in Southern California.

Transmissions are 10mW on 20m and 30m using WSPR with the altitude encoded into the PWR field. Currently it has leveled off above 43k’.

I do have a script running thanks to Graham VE3GTC which should decode the altitude and post it to APRS.fi each time the balloon changes grid squares. APRS Call is N6CVO-13

Specs:

ZachTek Tracker (lightened)
Dual Solar Panels (lightened)
20m dipole (super light)
Total flight ready payload weight 12.1gr

SBS-12 balloon
Hydrogen 
8gr free lift

Notes:

WSPRnet Map plots the target in the middle of the grid square.

APRS.fi should get updated from WSPRNET every fifteen minutes via a Python Script if the balloon has entered a new grid square.

APRS.fi plots the target in the lower left hand corner of the grid square but adds the decoded altitude.

None of this mismatch within the Grid Square matters as long as we are getting positions while over the oceans, Africa, etc.

73,
BrianB 
N6CVO


#Balloon #OT N6CVO-13 Launched #Balloon #ot

BrianB
 

Guys,

This morning we launched another balloon from the desert in Southern California.

Transmissions are 10mW on 20m and 30m using WSPR with the altitude encoded into the PWR field. Currently it has leveled off above 43k’.

I do have a script running thanks to Graham VE3GTC which should decode the altitude and post it to APRS.fi each time the balloon changes grid squares. APRS Call is N6CVO-13

Specs:

ZachTek Tracker (lightened)
Dual Solar Panels (lightened)
20m dipole (super light)
Total flight ready payload weight 12.1gr

SBS-12 balloon
Hydrogen 
8gr free lift

Notes:

WSPRnet Map plots the target in the middle of the grid square.

APRS.fi should get updated from WSPRNET every fifteen minutes via a Python Script if the balloon has entered a new grid square.

APRS.fi plots the target in the lower left hand corner of the grid square but adds the decoded altitude.

None of this mismatch within the Grid Square matters as long as we are getting positions while over the oceans, Africa, etc.

73,
BrianB 
N6CVO


Re: Firmware update #firmware #qcx40

Daniel Conklin
 

Just read all the directions carefully first and make sure you have the fuses set according to the most recent configuration first.


On Sun, Jul 12, 2020 at 09:55 AM, N3MNT wrote:
On Sun, Jul 12, 2020 at 09:50 AM, Alan G4ZFQ wrote:
Jack,

Avrdudess and a USBasp are used by quite a few.
https://sites.google.com/site/g4zfqradio/qrplabs_program_chip_with_USBasp

I have been using this method for some time and it works every time.  Very simple and little room for errors.  If you have more than one of QRP-Labs devices you need this.

 
--
73, Dan - W2DLC


Re: QCX+ and 50W amp, ready for action #qcx #pa

Ted 2E0THH
 

Very neat indeed, looks fabulous!

73s Ted 2E0THH


QCX firmware upgrade instructions for USBASP and Extreme Burner (updated instructions)

Ted 2E0THH
 

I've just updated the instructions to explain how to circumnavigate Extreme Burner's unsigned driver for 64-bit machines
The Instructions are here
and all files can be found here

I hope they are of some use to someone

73s Ted
2E0THH


Re: QCX+ and 50W amp, ready for action #qcx #pa

Ben
 

Hi Jim,

I like it very much, feels great. Though I have not used it outside yet. I use the Begali Simplex Basic for my base rig which I also love :)

Ben

Op 12 jul. 2020 om 16:22 heeft Jim Painter via groups.io <Jfpainter=yahoo.com@groups.io> het volgende geschreven:

Ben, it looks like your key is the Begali Traveler. How do you like it?

Jim...KQ3S


Re: QCX+ and 50W amp, ready for action #qcx #pa

Jim Painter
 

Ben, it looks like your key is the Begali Traveler. How do you like it?

Jim...KQ3S


On Jul 12, 2020, at 10:11 AM, Ben <ben@...> wrote:

Hi all,

Finished building the QCX+ and 50W amp. Ready for action!

73, Ben
PA2ST

<qcxp-pa.jpg>


QCX+ and 50W amp, ready for action #qcx #pa

Ben
 

Hi all,

Finished building the QCX+ and 50W amp. Ready for action!

73, Ben
PA2ST


Re: KIT LPF

bernard BREYNE
 

Hello, I can not see your image, too clear. The calibration was done but as indicated on the VNA notice. Control by the abacusSmith's is correct. Can tell me how to control my LPF properly. Thank you very much. I respected the number of spires as well as the abilities.???


Re: Firmware update #firmware #qcx40

N3MNT
 

On Sun, Jul 12, 2020 at 09:50 AM, Alan G4ZFQ wrote:
Jack,

Avrdudess and a USBasp are used by quite a few.
https://sites.google.com/site/g4zfqradio/qrplabs_program_chip_with_USBasp

I have been using this method for some time and it works every time.  Very simple and little room for errors.  If you have more than one of QRP-Labs devices you need this.


Re: Firmware update #firmware #qcx40

Alan G4ZFQ
 

On 12/07/2020 13:50, Alan G4ZFQ via groups.io wrote:

Sorry Darren,
Avrdudess and a USBasp are used by quite a few. https://sites.google.com/site/g4zfqradio/qrplabs_program_chip_with_USBasp
But there are lots of ways, some linked on Hans' pages, others in the Files section.
73 Alan G4ZFQ


Re: Firmware update #firmware #qcx40

Alan G4ZFQ
 

Jack,

Avrdudess and a USBasp are used by quite a few. https://sites.google.com/site/g4zfqradio/qrplabs_program_chip_with_USBasp

But there are lots of ways, some linked on Hans' pages, others in the Files section.

73 Alan G4ZFQ


Re: KIT LPF

bernard BREYNE
 

Hello Ronald, thanks for the answer. Yes I installed the filter larger frequency in 1. The straps are properly installed. I do not have the turntables to test the LPF separately. I don't know if we can still buy them. 73 


Re: Firmware update #firmware #qcx40

Charles Mims
 

Yes. You need to get a USBasp or equivalent and install avrdude. 

Charles KG5ZLH 


On Jul 12, 2020, at 8:07 AM, jjpurdum via groups.io <jjpurdum@...> wrote:


The RP would be an expensive overkill in this use. It has a complete Operating System with HDMI graphics and costs at least 10x an STM32 or ESP32, which would be more in line with the resources that are needed.

Jack, W8TEE

On Sunday, July 12, 2020, 8:18:13 AM EDT, Darren KN4WML <darrent78@...> wrote:


Could the update be done with a cpu like the raspberry pi, or orange pi? I have quite a few of those, but I currently don't have an Arduino 


Re: Firmware update #firmware #qcx40

jjpurdum
 

The RP would be an expensive overkill in this use. It has a complete Operating System with HDMI graphics and costs at least 10x an STM32 or ESP32, which would be more in line with the resources that are needed.

Jack, W8TEE

On Sunday, July 12, 2020, 8:18:13 AM EDT, Darren KN4WML <darrent78@...> wrote:


Could the update be done with a cpu like the raspberry pi, or orange pi? I have quite a few of those, but I currently don't have an Arduino 


Re: Firmware update #firmware #qcx40

Darren KN4WML
 

Could the update be done with a cpu like the raspberry pi, or orange pi? I have quite a few of those, but I currently don't have an Arduino 


Re: Kit shipping

KI7MWA
 

Hans' control ends when he drops your shipment off at the local collection point.  My U3S case arrived more than a week before the kit.  My most recent purchase has been languishing in US customs for 5 days now.