Re: QDX input Analysis
#qdx
Hi Hans, I figured out the answer to my question no-one answered, there is *NO transmission* during *input analysis* with QDX VOX enabled and wsjt-x VOX in a Transmit mode, so my question how to set
By
KEN G4APB
·
#91136
·
|
Re: RPi 4 Stock
Pico seems to be readily available at the $4 price point, though the $6 WiFi version may be more constrained. And you can buy the RP2040 chips for $1 all day long. I dug up a power monitoring project
By
William Smith
·
#91135
·
|
QDX Stock/Status
#sales
#qdx
How long does it take to deliver QDX? Is it available or should we wait for a new batch? I ordered and paid today, but I can't see the status anywhere.
By
Crni Mrki, DK4BN
·
#91134
·
|
Re: Missing parts in QDX kit
This is one thing my wife and I agree on. We keep all shipping boxes and packing for a minimum of 3 months because so many companies place things in the packing in different places or we just don¡¯t
By
David Wilcox K8WPE
·
#91133
·
|
Re: No spots on wsrnet.org.
As Hans said, you won't detect any drift with a spectrum analyzer or by ear. Can you receive the WSPR locally with another rig and computer running WSPR? That might tell you if you have drift or some
By
William Smith
·
#91132
·
|
Re: QDX - WSPR - Transmit appears OK but No WSPR spots
#qdx
#wspr
Vin, I have not heard of a "wide band" WSPR receiver. WSJT-X has a small overlap, maybe +/-105Hz. That could be extended in one direction if slightly off-tune. I wonder if the 1.5KHz was due to
By
Alan G4ZFQ
·
#91131
·
|
Re: USB experts? Question about serial devices, implementing multiple ports on QDX
can allocate up to 32 endpoints The key words are "up to". The STM32F401 in the QDX has many fewer endpoints. Andy ________________________________ Sent: Wednesday, August 24, 2022 1:58 AM To:
By
Andy
·
#91130
·
|
Re: QDX with Bluetooth?
#qdx
#bluetooth
Hi Don, just so¡¯s you know I am not ignoring you¡I don¡¯t know how to implement that. I was just experimenting with what I had.?I saw two COM ports available from my ¡®simple¡¯ bluetooth
By
KEN G4APB
·
#91129
·
|
Re: RPi 4 Stock
I hve a RPi4, and have plans for it.? In the meantime I decided to move away from Arduino ATmega chips, to the stripped down basic RP2040 PCB. Not much on it, but it is 10x faster than arduino NANO
By
alvey street
·
#91128
·
|
Re: USB experts? Question about serial devices, implementing multiple ports on QDX
You probably know this already but I am learning¡. A single USB host controller can allow *up to 127 connected devices*. A connected USB hub counts as a USB device address, and every device
By
KEN G4APB
·
#91127
·
|
Re: QDX - WSPR - Transmit appears OK but No WSPR spots
#qdx
#wspr
I am not familiar with the QDX, I have a QCX. I had two prblems in the past.? One was failing to select USB on the lower HF bands. This inverts and translates the RF carrier.? The second is that I
By
alvey street
·
#91126
·
|
Re: QDX - CAT Test = No Green, TX fine, but no signals on WSJTX waterfall / receive on any band
#qdx
#troubleshooting
Rob, the wsjt-x CAT box on a Raspi never turns green. If you try the PTT box it should turn red. In the AUDIO setting on wsjt-x have you chosen the QDX input and output from the pull down menu? If you
By
KEN G4APB
·
#91125
·
|
Re: USB experts? Question about serial devices, implementing multiple ports on QDX
Indeed. Moving from the standard drivers is a serious move that will open up lots and lots of "opportunities" that you don't want to have to debug and support! It's way of doing what your want, but
By
Andy
·
#91124
·
|
Re: USB experts? Question about serial devices, implementing multiple ports on QDX
Hello Andy Yes, both ideas would work BUT both would stray away from one of the core principles of QDX: which is that I would use existing USB device drivers so that no special software or drivers
By
Hans Summers
·
#91123
·
|
Re: USB experts? Question about serial devices, implementing multiple ports on QDX
Two ideas, both software heavy. 1. Stop using CDC and write your own custom protocol. You can then multiplex as many channels of data as you want over a single pipe. You'll need to write a driver for
By
Andy
·
#91122
·
|
Re: USB experts? Question about serial devices, implementing multiple ports on QDX
Hello Ken Yes, the QLG2 implements a USB <-> Serial converter. Which you can use either for GPS data, or for any other purposes. So a QLG2 could be used as a converter for a QDX additional serial port
By
Hans Summers
·
#91121
·
|
Re: USB experts? Question about serial devices, implementing multiple ports on QDX
Hi Hans, just an observation¡you kinda already have done this on the QLG2 gps module haven¡¯t you? ?a USB serial port and the gps data out (TTL) that I just recently ran a bluetooth serial dongle
By
KEN G4APB
·
#91120
·
|
USB experts? Question about serial devices, implementing multiple ports on QDX
Hi all So there was some discussion here about implementing a second serial port on QDX. This would allow some configuration and monitoring activities to take place on one serial port connected to a
By
Hans Summers
·
#91119
·
|
Re: No spots on wsrnet.org.
Hi Ed Any drift worse than 4Hz in either direction means WSPR is not decoded. This level of drift would be hard to hear by ear or see on a spectrum analyzer; it needs an audio waterfall really like in
By
Hans Summers
·
#91118
·
|
Re: No spots on wsrnet.org.
Thanks Hans My ham band transcievers have a 500 hz CW bandpass. So, listening to my QCX WSPR transmission,? I can't really say if there is drift, or I am off frequency by a few hundred HZ I got out
By
Ed Mohrman WA7EM <ejmohrman@...>
·
#91117
·
|