Re: Available Hand Mics for QMX SSB ?
Matt, from the beta firmware download page:
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Microphone Connection:
The microphone is plugged into the QMX Paddle port; this stereo 3.5mm jack plug is for both the microphone signal AND the PTT switch.?
- Ring-to-ground is the microphone connection
- Tip-to-ground is for PTT (close the connection tip-to-ground to initiate transmiussion)
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73, Dan - W2DLC
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Re: Available Hand Mics for QMX SSB ?
Adam has a few different wiring configurations listed for the mic; which one has been found to work with the QMX?
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On Mar 20, 2025, at 11:10?AM, Erik Larson via groups.io <kd7ykq@...> wrote:
I just made one of these for my QMX+:
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I have the parts on hand to make 9 more if anyone is interested. You will need to provide your own cord.
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I have PLA on hand to make the case in Black, White, Matte navy blue, Light green, purple, tan, orange, or brown.
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I can provide the parts (3D printed PLA case, MIC element, pushbutton switch, and 3.5mm TRS jack) as a kit for $10, or fully assembled for $15 anywhere in USA.
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My email is good on QRZ if you are interested
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AD7OV
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Re: Did I make an unfixable mistake?
#QMXplus
I started using ChipQuik brand liquid flux for rework? and have been very happy with it.? I had been using up an older supply of Radio Shack brand solder wick and it performed better with a drop or two of the flux on the wick prior to wicking the joint.?
Ran out of the RS wick. Ordered some ChipQuik brand solder wick in their 2mm width. Found it worked great without any extra flux. Place the wick on the joint, apply a somewhat warm iron (400C) raise the spool side of the wick a bit and the solder is absorbed right off the joint. Even was able to clear through holes if I flowed a little fresh solder in just before wicking.?
Great stuff?
GREG KI4NVX?
On Thu, Mar 20, 2025 at 1:14 PM, avinoam83 via groups.io <avinoam83@...> wrote: Thanks! I went out and bought a syringe with flux paste, but it's very hard to dispense and apply it. What you have seems a lot better.
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On Thu, Mar 20, 2025 at 02:31 AM, N4REE - Bob wrote:
Stan seems the first to mention the magic word: FLUX.?
A drop of flux before applying the iron does magic in transferring heat and solder. has helped me immensely. Looks expensive, but likely a lifetime supply (esp at my age).
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72 de N4REE, Bob Easton - QRP CW forever
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Re: #qmx #SSB Firmware beta 1_01_001 release
#ssb
#qmx
I’m not brave enough to download the SSB software yet, but would like to say how much I am enjoying reading posts of the group experiences and community debugging of the releases.
And it is so nice not to read anymore the posts that say “Hans, when is the SSB coming?”
Phil K3UT
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Re: #qmx #SSB Firmware beta 1_01_002 release
#qmx
#ssb
On Thu, Mar 20, 2025 at 11:12 AM, Dave Bottom wrote:
Hans,
It is looking very good SSB on the QMX+.??
How do you configure the PTT Out to go LOW to key a conventional linear amplifier?? At 5W it should drive my RFKIT RF2K-S to 200W on the standard attenuated input but it doesn't want to key the Linear.
Dave WI6R
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Dave,
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Make sure that in the band configuration menu that you have PTT Grounded ENABLED if your amplifier needs a pulled down PTT signal.? Default is a +5V output upon transmit.? ?PTT output is on the TIP of PTT jack.
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Brien
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Re: Available Hand Mics for QMX SSB ?
While my license does not allow for "commercial" sales, I can clearly see that this is not a money making venture and is instead simply a favor to other hams. Consider this approval to proceed. ?
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Adam
K6ARK?
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Re: #qmx #SSB Firmware beta 1_01_002 release
#qmx
#ssb
Hans,
It is looking very good SSB on the QMX+.??
How do you configure the PTT Out to go LOW to key a conventional linear amplifier?? At 5W it should drive my RFKIT RF2K-S to 200W on the standard attenuated input but it doesn't want to key the Linear.
Dave WI6R
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Re: Available Hand Mics for QMX SSB ?
I just made one of these for my QMX+:
?
I have the parts on hand to make 9 more if anyone is interested. You will need to provide your own cord.
?
I have PLA on hand to make the case in Black, White, Matte navy blue, Light green, purple, tan, orange, or brown.
?
I can provide the parts (3D printed PLA case, MIC element, pushbutton switch, and 3.5mm TRS jack) as a kit for $10, or fully assembled for $15 anywhere in USA.
?
My email is good on QRZ if you are interested
?
AD7OV
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Re: Can't get SWR sweeps to be 1:1 with dummy load
On Thu, Mar 20, 2025 at 03:27 AM, N1TR wrote:
Does this align with your observations when you needed to replace both IC402 and IC403?
Greg, not exactly. But like in your situation the voltage was wrong (away from 2.5 V) when IC402 was connected and different but also wrong when IC402 was separated from T401.
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?
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Re: #qmx #SSB Firmware beta 1_01_001 release
#ssb
#qmx
I installed Firmware beta 1_01_002 on my high band QMX. In putty I started Optimization and after less then a minute putty became unresponsive. I exited putty and disconnected power from the QMX. I powered up the QMX and it stopped with the message "Initializing Audio System" then it shut down. Any thoughts on what I broke?
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Well, crisis averted! ?It was a power bank issue the whole time—the most likely cause based on my situation. ?I was able to reset my power bank (a feature I didn’t realize it could do until I got home) and now it’s working fine.
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Re: Available Hand Mics for QMX SSB ?
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For anyone who''s looking at their Heil HTH-* handy talky headset, like me, here are the three wirings that would need to be adapted.
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Don't know why I couldn't find it at Heil's website.? I'm really tired of these lists of "it works with x, y, z, & c." without actually specifying what it does.
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-- rec -- ad5dz --
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Re: Did I make an unfixable mistake?
#QMXplus
Thanks! I went out and bought a syringe with flux paste, but it's very hard to dispense and apply it. What you have seems a lot better.
?
On Thu, Mar 20, 2025 at 02:31 AM, N4REE - Bob wrote:
Stan seems the first to mention the magic word: FLUX.?
A drop of flux before applying the iron does magic in transferring heat and solder. has helped me immensely. Looks expensive, but likely a lifetime supply (esp at my age).
--
72 de N4REE, Bob Easton - QRP CW forever
|
Re: #qmx #SSB Firmware beta 1_01_002 release
#qmx
#ssb
One thing I noticed, probably general and not specific to this release, is that during TX the power meter does not really follow voice peaks very well compared to an external peak reading meter or watching the signal on the waterfall display.? ?This may be due to a low sample or update rate on the meter and may just be the way it is implemented.? It has caused me to wonder if I am getting good output but when I check the external peak reading meter and waterfall it confirms that I am getting good output.
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Brien - KE7WB?
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Re: Using a PC Gaming headset with mic for phone SSB operation
This is the circuit I use for my Heil microphone, this just has a TS connector, no ring.
Chris, G5CTH
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It could be one of the protection diodes on one of the buck converter boards. Those are D106 and D109.?
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73, Dan - W2DLC
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For Sale. QMX+ v1 unbuilt
Selling QMX+ V1 unbuilt kit. $125 ? Will include case and free shipping to lower 48. ?I just have too many QMX’s HI. ?Email is good on QRZ. ?
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Trevor (N0YMA)
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Re: Available Hand Mics for QMX SSB ?
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Re: #qmx #SSB Firmware beta 1_01_002 release
#qmx
#ssb
On Thu, Mar 20, 2025 at 09:08 AM, Daniel Conklin wrote:
I noticed, as some others have, that the built in mic is picking up my voice and other sounds in the room while I am in the mic gain adjustment mode in the terminal.
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73, Dan - W2DLC
I just saw the other thread where Hans explained that the internal mic is used as the reference for the noise cancellation.
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73, Dan - W2DLC
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Re: Release of version 2.0 of ABS solution for QMX+ (Automatic internal antenna tuner, internal battery and internal speaker with audio amp)
#PSU
#QMXplus
#audio
#ABS
#ATU
It might make sense to ship the board with only the small parts stuffed, that should be most of them.
The few large parts could be obtained locally.
Fragile small parts or those mounted vertically could be in the same envelope, soldered in place after arrival.
Shipping in an envelope seems more likely to avoid trouble at customs.
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Shipping in an envelope is more likely to result in damaged parts.
Has to go through mail sorting machines.
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Jerry, KE7ER
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On Thu, Mar 20, 2025 at 08:45 AM, Sardar (AC8L) wrote:
Relays are even thicker. Plus group buy manager will solder female programming socket under the pcb which will make the package about 2mm thicker. So cheap envelope shipping for the ATU board is no go.
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Daniel Conklin
Kaufman, Matt - N3AR
Brien - KE7WB
Dave WI6R
Mallory KD5ZZU
UPNORTHOF48 :