Re: QMX(+) Build experience, Poor Audio Filter Sweep/RF Filter Sweep/Image Sweep/ADC IQ test and resolution with new PCM1804
Don't know ... will repeat that test to see and get back...
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Did a voltage check today while band switching and approx 2.5 vdc moved from C401 to C404 when bands 160 m through 6 m. VCC and VDD were nominally 5.0 and 3.3 respectively.
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Have awakened to all the handy test points scattered about!
--
73
Karl
KI4ZUQ
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A 10% tariff on ALL imports went into effect at midnight this morning. This tariff applies to all countries and will affect shipments from Turkey and every other country in the world.
On Sat, Apr 5, 2025 at 10:45?AM George Korper via <georgekorper= [email protected]> wrote: Once you ship with DHL, they will charge you or you won't get it.
It will wind its way back, regardless causing you a whole bunch of annoyance.?
?
This also goes for Amazon. I ordered 100 feet of tin braid. Paid for it.
They just put it aside rather than swallow the Metal tariff. Fortunately,
after three weeks they returned all of my money. Chaos, and musical chairs HiHi.?
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Hi Chris,
?
Seems there is a permissions problem with the images you posted.? As such, the images are not displayed in your post.
?
73,
?
Robert, WA2T
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Re: Another QMX+ became SSB capable
Hi Gert,
No idea! It would be interesting to have freq up/down from the mic but require surgery I don’t want to contemplate.
--
Jack
KD4IZ
FM19OO
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Re: Another QMX+ became SSB capable
Mel,
I just loaded the firmware. No adjustments yet. The voice QSO’s did not think the audio drive to be low with the HM-219 or the headset.
--
Jack
KD4IZ
FM19OO
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Once you ship with DHL, they will charge you or you won't get it.?
It will wind its way back, regardless causing you a whole bunch of annoyance.?
?
This also goes for Amazon. I ordered 100 feet of tin braid. Paid for it.
They just put it aside rather than swallow the Metal tariff. Fortunately,
after three weeks they returned all of my money. Chaos, and musical chairs HiHi.?
|
On
4/04/25 I had a CW practice / rag chew session on 20
meters. I worked two stations and had long chats with
them:
| Date
/ Time |
Call |
Bnd |
Frequency |
Mode |
Power |
Rec |
Snt |
Name |
SPC# |
Comments |
Off |
| 4/4/2025
14:12 |
K0DCR |
20 |
14.04 |
CW |
100 |
578 |
569 |
Dennis |
CO |
K3
at 100 watts 100 ft sloper doublet |
14:33 |
| 4/4/2025
13:12 |
WB5UTM |
20 |
14.04 |
CW |
100 |
599 |
579 |
Scot |
LA |
K3
at 100 watts 100 ft sloper doublet |
14:01 |
Conditions were OK.
SSN = 124, SFI = 178, A = 26, K = 4.
My next CW practice session will be April
07 at 09:00 EDT / 13:00 UTC on 20 meters.?Anyone
and everyone is welcome. This practice is intended for
operators who are new to CW or they need some
practice. IT DOES NOT MATTER HOW POOR YOUR CW IS.
Mistakes are OK. Poor fists are OK. Slow speed is OK.
Really slow speed is OK. This practice is meant for
you to improve your CW. I will do my best to adjust to
your skill level. Operate at any power level. If
several stations show up, I will operate as a
round-table control station. I will do it as a
round-table so everyone gets a chance to transmit.
Please listen to my directions.
Details:
Date
- April 07 2025
Time - 09:00 EDT ?13:00 UTC
Band - 20 Meters
How to find me - I will find a clear frequency and
call CQ. Go to the Reverse Beacon Network and search
for my call sign AB8DF.
That will tell
you what frequency I am on. Tune your station to that
frequency and if you hear me give me a call. If there
is a QSO in progress, please wait for a break in the
action. Then send your callsign. If I hear you, I will
invite you to join the QSO and start a round-table
QSO.
Reply to this email if you have questions.
IT DOES NOT MATTER HOW POOR CW IS
Ed
AB8DF_._,_._,_
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I bet that you'll still encounter their brokerage fee.?
--
Jim
VE4BWG
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When I use SSB mode do the 2 m by the USB icon change? Because I'm on an antenna with 1.3 SWR but it's showing much higher when I use SSB mode.
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Message from Jack W8TEE about T41 book
(For some reason Jack has a problem accessing this group) ========================
All:
Al and I have just updated the 3rd
edition T41 book. We moved the calibration info from Appendix C to
its own chapter (20). The expanded instructions and new software make
T41 calibration much easier. We have also updated the narrative in
numerous places and have concentrated discussions on the V12.6
release where those changes are important.
Some of you are asking yourself: Do I
need to buy this update. Truthfully, if you already own the 3rd
edition, we would say no. Most of the important changes are discussed
on the web site and photos and schematics are available there, too.
On the other hand, this is the last
change we will be making to this book. Al and I have been at this for
almost 7 years now and we're getting a little burned out. For that
reason, we are turning this site over to Oliver King, KI3P, and Dr.
Bill Schmidt, K9HZ. Al and I will continue to be active relative to
the T41, but will leave the details to Oliver and Bill.
If you do want the final version of the
book, its new cover looks like this:
The book is actually available now, but
the Amazon ad will not reflect the new cover for about 10 more days.
(If you order now, it will be the new version.) If you are attending
the FDIM conference this May (coincides with Dayton Hamvention and
the conference hotel is about 10 miles away), Al and I will be
selling autographed copies on Thursday night (May 15th) at
the conference hotel starting around 8PM. We have reduced the price
of the autographed copies from $12,500 to $40...which is a deal and
less than the Amazon price! If you have a previous copy of the book,
bring it along and we will be happy to sign it.
This has been a fun project and
we want to thanks the hundreds of people have contributed to its improvement over time. We
hope that continues long after Al and I are gone.
72,
Jack Purdum, W8TEE
Al Peter, AC8GY
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Is a brokerage fee considered a tariff? DHL has been charging a brokerage fee in Canada for some time now, along with HST (VAT). I will try to pay HST directly to Canada Customs next time I order, and cut DHL out of the loop, if at all possible.
VA3RR
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Re: SWR and PWR does not show lcd
In "hardware test," the transmission is working and displays PWR & SWR. Therefore, the T507 is OK.
In the "PWR/SWR display" menu, it is ENABLE.
In normal operating mode DIGI , the PWR & SWR indication does not appear on the display.
?
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Hi All,
The tariffs on my last two shipments were applied by DHL.
Previously dozens of shipments to Mexico had no duty.
DHL asked for a proof of citizenship and added a brokerage fee.?
The total came to 20%.?
So the first signs of an US change may be when the package has been ordered.?
Mexico has a Deminimis but it was ignored.?
As Hans says wait and see. It is kind of sneaky,
The good news is that DHL does deliver with no damage and you can pay the driver.?
It's annoying but beyond Han's and QRP labs control and won't affect future orders from me.?
The QMX+ is still a bargain. The tariff on Japan is more important in my opinion,
as that will really affect the future of Ham radio. It may be good for US domestic manufacturers, but
bad for distributors and individual hams. Also domestic manufactures use China parts....
so all of this is very inflationary.??
73,
George
K3GK
?
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Re: ProgRock2 programming??
Good morning Alan (I guess good day for you),
I haven’t made any modifications to the equipment as yet. I’ve got to find/order a 5v regulator and then put it in the circuit. The series capacitor will be easy below the crystal socket. Plenty of room under the chassis. I really appreciate your help and will update you when I follow through on your advise.
Have a great weekend,
Tom N5AMA
toggle quoted message
Show quoted text
On Apr 5, 2025, at 2:18?AM, Alan G4ZFQ via groups.io <alan4alan@...> wrote:
?On 04/04/2025 22:07, Tom Smith via groups.io wrote:
I measured the voltage on the HC6 socket and found negative .1 volts on one side and zero on the other. Tom,
Hopefully that has not damaged the Progrock.
But I'm fairly sure the output of the Progrock has a positive voltage on it.
I suggest you try with a series capacitor, maybe 10n.
Then no damage is likely.
Of the two connections on the crystal socket one is used to inject the Progrock's output, maybe to the grid of a valve (tube). The series capacitor will be inserted here.
The other one must be disconnected and supplied with your 5 volts for powering the Progrock. Did you do this?
73 Alan G4ZFQ
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?
I did it for my Heil headset but it also seems OK for PC headsets with separate headphone and microphone plugs.
?
Chris, G5CTH
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Updated Wiki Page: QMX External Microphone Options
#wiki-notice
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Re: shorted PA on TX, dead SMPSU?
Dan, a high probability for a broken controller. Do you have a sharp tip for your DMM to probe voltage at a pin of the controller?
Driving 300 mA you may check voltage drop from Vdd connection to the mainbord to each of the five Vdd pins of the STM32. If high current is flowing into the STM32 you should see a drop of much more than 10 mV. Last proof would be to remove the STM32 and check resistance Vdd - GND.
?
73 Ludwig
?
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Re: SWR and PWR does not show lcd
On Fri, Apr 4, 2025 at 05:05 PM, Stan Dye wrote:
If your power and SWR indicators are not working, please check that they are enabled in the menu.? If they are enabled, you may have a bad connection at T507 such that the processor can't read the power and swr.
The terminal Hardware Tests- Diagnostics can test transmit and show the Power and SWR.? If these read values for Power and SWR then T507 is fine.
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Re: shorted PA on TX, dead SMPSU?
thanks again, Ludwig
?
CPU barely warmed at 200mA, and at 300mA I got a voltage drop to 2.5v and the CPU did warm slightly. I couldn't detect any other components warming.?
?
Is it game over?
Dan
?
?
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Re: QMX and power bank PD
I received the cable and voltage monitor yesterday. Both appear to be good quality for the price paid. I should have the power bank by the end of next week.
?
Noticed though that the 25k one doesn't have PD. I mistakenly thought it did. It does output 12v 3a though so should be OK with the PD USB cable?
?
In half a mind to return it and get the 27.5k one with confirmed PD 3.1, though its �142 vs �99.
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Karl
Jack Spitznagel (KD4IZ)
va3rr