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- BITX20
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bitx40 dumb questions!
hi! I have just fixed up a bitx40 for a friend. I've loaded it with the firmware compiled from??and done all of the mods I can find for both that firmware and general rig stability. For LSB it works great! 10W, under legal limit for harmonics, IMD looks good. I'm happy! (I'm happy enough that I may want to go buy one for myself now..) So, the four stupid questions I have: * is it ok to run it from a solar setup? the friend in question has a solar setup that floats between 13 and 14.5v? Or will it get angry if you feed it above 13.8v? * i needed to put that trim cap on the IF crystal to get it a little below the 11.995MHz it was sitting at - that and 12MHz didn't result in a good passband through the IF filter. Is that normal? I take it the 12MHz filter isn't always at 12MHz but it was quite off (like, could only get 1/2w out and was deaf as a brick before I tweaked it off) * The VFO calibration is off by about 280ppm, and the USB offset for the above firmware was -1300ish Hz, rather than being /anywhere/ near the?+1500Hz it defaults to. Is that acceptable? That math feels a bit "off" somehow.. * .. and it's also quite a bit deafer on USB than LSB, even with the suggested two caps removed and max drive strength. I take it USB isn't the primary reason for this radio, but have others seen this? Thanks! -adrian (kk6vqk) |
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Re: Ubitx V5# CW Key not working# audio is harsh#
Randy
nice work in your build and debug.? given the paddle function to be working, and a presume to send good CW via the transmitter, hard to fathom how manual keying can't be working - with an appropriate voltage read there.? given your pot experiment, I presume you tested it down to zero and not found any manual keying.? I suggest manual keying with a piece of wire, to confirm you don't have excessive corrosion on the key contact - then you could try substituting a resistor for the 4.7 k resistor (also measure that critter).? A firmware copying issue seems so unlikely with everything else working.? I really think the issue is hardware.? The sidetone on the v4 is dreadfully loud.? I don't recall any related changes in v5.? Therefore I suggest that you consider this mom developed by a ham in my local club -- I did it and it works wonderfully.? Curt |
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Re: Kit projects AGC install - extremely frustrated.
Jack, We have not had any complaints about the directions you would be the 1st. To obtain them they are on the site in your account under downloads, can't get much simpler than that. It is stated on the product page as follows "All files are available in "My Account-My Orders-Downloads" If for any reason you can not get the files let us know and we will e-mail them." I even sent them to you via e-mail. As stated in the instructions "Below is a diagram of the switch We have tried to make them as simple as possible if you have any suggestions please let us know.
?N8DAH |
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Ubitx V5# CW Key not working# audio is harsh#
I ordered Ubitx (got V5) and shipping was 3 days - nice 1. Receive audio is VERY harsh, the audio freq response is tilted with much more gain at high freq audio. Yes, I did the alignment, which helped some.? I added a .1uF cap across the volume control to tame it down and this helped at lot (especially with headphones) I also added 5K in series with the volume control to reduce the gain somewhat.? 2. I could not get the CW key to work. I could read the ADC fall to zero when I shorted out the key voltage.? Yes, I used the resistor supplied. I looked on the scope on the key line and it looks normal and noise free.? So the ADC on the nano is working, but I think the firmware is at fault.? I attached a 10K pot to the key line so I could vary the voltage, I found keyer made dits at 5.3K and das at 9K.? (roughly the center of the ranges) So I added these resistors to a keyer and it works (the timing is a bit off, some typos result) Otherwise great rig, lots of fun Cheers Randy KE7PWE |
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Re: Kit projects AGC install - extremely frustrated.
Jack Brabham - KZ5A
¿ªÔÆÌåÓýI looked at the switch wiring
"directions" and couldn't make any sense of the "illustration".?
I'm going to look for a schematic today and see if I can figure
out how to wire the switch.? The directions, which were too much
trouble to obtain, are close to useless.
73 Jack KZ5A
On 4/30/2019 1:29 AM, Kelly Mabry
wrote:
Hi everyone this is Kelly. Trying to install the kit-projects AGC Board and I have a question. Which one of these diagrams is right for the switch? Also I'm having trouble with the install. I am getting 12 volts to the board. However I am having issues. Now where I have I had great audio, I have barely nothing with the audio gain turned wide open. I have not tried to attach the s meter wiring yet. All other wiring connected. I fear its mis wired at the switch not sure.
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Re: Ted
Thanks, Kelly...I thought it was there.
@Ted...just opened your hmi...looks good! For the CW, I am basically using the same CEC sketch, but I removed a lot of the painted items from the jpgs. I replaced with controls that I can manipulate easier. For example,?I noticed that you added the second decimal on the frequency. My preference is to use?a 5x5 or 7x7 button as a decimal?that I can control instead of editing jpgs. I also have minor stuff, like retaining cw info on system resets, no s-meter (have physical), different RIT layout, and a few others. BTW, I haven't seen Joe on the board. He was working on the same thing for a 5" screen. Hope he got thru it. |
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Re: Kit projects AGC install - extremely frustrated.
Can we have pictures with the board installed as well, It is very hard to troubleshoot this with out seeing how you have it attached. I Also see the possibility that the 12v RX rail is cut, I would triple check that as that could easily kill your audio. -- Tim Keller - KE2GKB |
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Re: 3.5 in display.
Jack Purdum
Maybe start here (I don't have a Nextion so I don't know)? Jack, W8TEE
On Tuesday, April 30, 2019, 11:14:51 AM EDT, Raymond House <raymondh40@...> wrote:
OK thanks Jack, I'll look to find his code. On Tue, Apr 30, 2019 at 11:12 AM Jack Purdum via Groups.Io <jjpurdum=[email protected]> wrote:
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Re: 3.5 in display.
OK thanks Jack, I'll look to find his code. On Tue, Apr 30, 2019 at 11:12 AM Jack Purdum via Groups.Io <jjpurdum=[email protected]> wrote:
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Re: 3.5 in display.
Jack Purdum
I would guess then that you need to download and install Dr. Lee's code. Jack, W8TEE
On Tuesday, April 30, 2019, 10:57:01 AM EDT, Raymond House <raymondh40@...> wrote:
Hi Jack, I'm using Ubuntu Linux 18.04 and the dis[play is a Nextion 3.5 in? NX4832T035_011, 480X320. On Tue, Apr 30, 2019 at 10:50 AM Jack Purdum via Groups.Io <jjpurdum=[email protected]> wrote:
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Re: 3.5 in display.
Hi Jack, I'm using Ubuntu Linux 18.04 and the dis[play is a Nextion 3.5 in? NX4832T035_011, 480X320. On Tue, Apr 30, 2019 at 10:50 AM Jack Purdum via Groups.Io <jjpurdum=[email protected]> wrote:
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Re: 3.5 in display.
Jack Purdum
It depends on the software you're running. Jack, W8TEE
On Tuesday, April 30, 2019, 10:45:25 AM EDT, Raymond House <raymondh40@...> wrote:
Hello everyone, I'm at the stage where I want to fire up the 3,5 in display on my ubitx V5 but after following the different threads on this forum I am a bit confused as to what version I must download to do this, can someone clear this up for me? The display is plugged in and all looks good, it does it's initial tests ok, Thanks, Ray VE2ol. |
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3.5 in display.
Hello everyone, I'm at the stage where I want to fire up the 3,5 in display on my ubitx V5 but after following the different threads on this forum I am a bit confused as to what version I must download to do this, can someone clear this up for me? The display is plugged in and all looks good, it does it's initial tests ok, Thanks, Ray VE2ol. |
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Re: Kit projects AGC install - extremely frustrated.
Jack Purdum
Does anyone else laugh when Han Solo says "...bring me the hydrospanner..."? uh...water wrench?
Not at all. I use one from time-to-time to tighten the loose water in the basement. Jack, W8TEE
On Tuesday, April 30, 2019, 6:59:15 AM PDT, Kelly Mabry <kmabry2007@...> wrote:
Ted, Thank you for the gracious offer, but I couldn't accept that.? Besides if there is no risk, the reward has no luster, or appeal.? I believe in having some skin in the game and trial and error are part of lessons learned, and the basis for success is an occasional failure now and then. My Kenwood? is a Kenwood... my ubitx has character...like when the Millennium Falcon wouldn't go into hyperdrive.? 73, Kelly K5AID? PS.? Does anyone else laugh when Han Solo says "...bring me the hydrospanner..."? uh...water wrench? |
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Re: Kit projects AGC install - extremely frustrated.
Kelly Mabry
Ted,
Thank you for the gracious offer, but I couldn't accept that.? Besides if there is no risk, the reward has no luster, or appeal.? I believe in having some skin in the game and trial and error are part of lessons learned, and the basis for success is an occasional failure now and then. My Kenwood? is a Kenwood... my ubitx has character...like when the Millennium Falcon wouldn't go into hyperdrive.? 73, Kelly K5AID? PS.? Does anyone else laugh when Han Solo says "...bring me the hydrospanner..."? uh...water wrench? |
N8DAH
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