New Information site on T41 SDR and DSP with microprocessors.
Hi Everyone,I have created, with Jack's help, a new site all about the T41-EP at:https://t41sdrtransceiver.wordpress.comThis is an 'information and background site" for the T41, not an open forum -
By
jjpurdum
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#145886
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Re: Why no AGC for digital modes, as other modes?
Would second this request. Elegant solution of the "remove digimodes from mode switch to avoid ear damage" request 2 further up Factory/default setting would be "off", + a brief mention in the manual.
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RS
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#145885
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Re: QMX Encoder Knob Digikey/Mouser part number?
#parts
#qmx
#rotary
#rotaryencoder
I would be interested in this info too. I have a defective encoder.
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BOB GILLILAND
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#145884
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Re: Audio level request
Maybe digi mode should be selectable from the menu rather than the rotary knob selection? I find it a bit of an irritation that when tuning across a band that i have to cycle through digi mode (at
By
KEN G4APB
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#145883
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QMX Encoder Knob Digikey/Mouser part number?
#parts
#qmx
#rotary
#rotaryencoder
Does anyone happen to know of a manufacturer or US distributor part number for a replacement rotary encoder switch for the QMX?? My left hand (power, band, mode)? rotary encoder switch appears to
By
k2cwcqrp@...
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#145882
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Re: #qmx plus assembly one LP and Band filter at the time
#qmx
Azgael, I would expect it to transmit fine with just the one LPF installed. Best guess is a bad solder job at T507 or no jumper at JP501. Perhaps a bad cable from QMX out to the dummy load, or a
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Jerry Gaffke
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#145881
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Re: Audio level request
Fred, AGC is not necessary with the Digi mode because the audio is always at 100%. You don't even need to listen to it since it's encoded ad interpreted by the computer. If you do want to listen to
By
Daniel Conklin
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#145880
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#qmx plus assembly one LP and Band filter at the time
#qmx
Hi Everyone I was wondering if is possible to assemble only one band filter at the time on a qmx plux rev3, this means I have assembled the all QMX leaving out only the toroids of all the filters, the
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Azgael
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#145879
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Re: SSB Cal problems with QMX (not +)
I'll bump this and see if anyone can help. 73, Randy, KS4L
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Randy
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#145878
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Re: Why no AGC for digital modes, as other modes?
By my understanding, DIGITAL mode is a "cheat." Note that is a SINGLE frequency mode -- thus works for FT8 <gasp>, WSPR, etc. that transmit a SINGLE frequency. Thus, all you have to do is SHIFT the
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Paul Ross
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#145877
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Re: Pop! Oops, blew a BS170 in my QMX, my fault. Lesson learned
Ouch!? A QRP antenna tuner is a good investment.? But some alternative suggestions are 1) reduce power supply from 12V to 9V (on a 12V QMX) or 2) use a cheap inline SWR bridge (e.g.,
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Mike KK7ER
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#145876
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Re: New QMX - observations and best QSO
Your point 1: Just be aware that some antenna designs do not have ohmic connection between the inner and outer connector of the coax feed line. That means electrostatic charges may build up in
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jakob@...
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#145875
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OoT-RADIO HIFI TAMAGUCHI
*Hello there, I found something amazing is possible.* *We need intelligent friends and we want to speak with them on many different topics. Do you remember that Tamaguchi baby robots need 24 hours of
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Mustafa Umut Sarac <mustafaumutsarac@...>
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#145874
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Re: Audio level request
I do not wish to guess why the "problem" with audio levels, or the modes used, but it is my guess that the lack of AGC choices in certain modes contributes to another's search for a solution.
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Fred Murray
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#145873
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Re: QMX+: low RX sensitifity @ 6m / 22 dB noise floor / 1500 Hz wistle
WSJTX waterfall on 6m freq.
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Richard Dyer
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#145872
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Re: QMX+: low RX sensitifity @ 6m / 22 dB noise floor / 1500 Hz wistle
Me as well QMX+ on 6m with a dummyload on battery.
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Richard Dyer
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#145871
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Re: Audio level request
The front panel volume control has nothing to do with the USB output level. -- 73, Dan - W2DLC
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Daniel Conklin
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#145870
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Re: Audio level request
Set the menu to mute at minimum volume, then just turn the volume down. -- 73, Dan - W2DLC
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Daniel Conklin
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#145869
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Re: Introducing QMX CARROT
How do you fit the 4States Group QRP Tuner inside a QMX+ case? Is it with the QMX+ radio or is it just a different case?
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Roy Ashkenaz
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#145868
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[OT] - Winkeyer and Ham Radio Deluxe (DM780)
Hello, Can't find this answer anywhere and this is my last try. I would like to properly key my transceivers from the computer with a dedicated keyer. So far my K42 worked very well, but it is a
By
Giuseppe Marullo[iw2jww]
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#145867
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