Thanks Howard for all your help. By shifting the connectors my first thought was that the transistors should not be affected, but who knows.
Yes, I just have to go the hard way and measure as good as I can (don't have a scope). But if you can give some hints what the voltages for the transistors should be, it would be of much help. But you have been very helply so far, so I can't expect you to waste too much time on this.
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Sorry you are having this problem. If
you shifted the Raduino1 connector, and the transmitter is really
working, I don't see how that can cause your problem since all the
signals must be working for the transmitter to work. It seems like
you will need a signal source and a scope, although you could
manage without the scope, to see where the problem is.
If you don't have those tools, you could check that all the stages
that have RX voltage and make sure that the transistors in those
stages have the appropriate DC voltages, i.e. Q10, Q11 etc.
Howard
On 6/3/2018 3:17 PM, hakan.sjostrom@... wrote:
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Thanks Howard for
the hint. But the result is just the same. I am afraid I destroyed
some component (the raduino?)
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Thanks Howard for the hint. But the result is just the same. I am afraid I destroyed some component (the raduino?)
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Good question, ? But this can be a fruitful add-on to your existing display. ? But If there¡¯s interest , I/we could look at a direct plug in module to replace the existing board, Pin-Pin compatible. ? Too early to comment , depends on the acceptability of this screen by the masses. ? regards charudatt ¨C vu2upx ?
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From: [email protected] < [email protected]> On Behalf Of W2CTX Sent: Monday, June 4, 2018 12:39 AM To: [email protected]Subject: Re: [BITX20] Nextion Display ? Does this replace the original display? ? rOn On June 3, 2018 at 3:07 PM Charudatt Uplap <charudattu@...> wrote: Nextion displays , by default are touch screen , Serial Displays ? ? ? I just wondered, as we're using the BuyDisplay.com displays which also offload the processing to the display. We're using the SPI interface with the touch screen feature as well. Are the Nextion users also using a touch screen feature? (I wasn't a touch screen fan at first, but now I really like it. Much more direct than encoder scrolling.) The JackAl display looks like: 
On Saturday, June 2, 2018, 11:32:40 PM EDT, Mike Woods <mhwoods@...> wrote: Jack
The nextion displays have a built in processor on the driver card.? This is configurable with a supplied Windows client.
Essentially the nextion talks to the raduino with serial commands sending "meta commands".? E.g. I am now on 3.512.245 MHz.??? Or in the other direction, "LSB selected".?? In codes of course!
This provides complete independence between the display software and the hardware control of the rig.?? People can come up with their on UX for the display independent of a standardised protocol being developed to interface with the CEC firmware.
Makes a whole lot of sense to me!
Mike ZL1AXG ubitx.net
On 3/06/18 2:12 PM, Jack Purdum via Groups.Io wrote: I see a lot of post about the Nextion display. What advantages does the if have over the mcufriend displays? On Saturday, June 2, 2018, 4:30:23 PM EDT, Allen Merrell via Groups.Io <kn4ud@...> wrote: I have a 3.2 ordered and waiting for it to arrive. I am using the 1.08CEC firmware from Dr. Ian and like it a lot. I am adding 8 switches to it. I know the manager has options for 6 but I am adding one for FKEY and momentary toggle for PTT. I would appreciate any information I can get on the Nextion Display. I downloaded the software on the Nextion site but have not loaded it yet to check it out. Thanks Dr Ian for all your great work.
73's kn4ud
kn4ud@...
--
Allen ?Merrell
?
?
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Does this replace the original display?
rOn
On June 3, 2018 at 3:07 PM Charudatt Uplap <charudattu@...> wrote:
Nextion displays , by default are touch screen , Serial Displays ? ? ? I just wondered, as we're using the BuyDisplay.com displays which also offload the processing to the display. We're using the SPI interface with the touch screen feature as well. Are the Nextion users also using a touch screen feature? (I wasn't a touch screen fan at first, but now I really like it. Much more direct than encoder scrolling.) The JackAl display looks like: 
On Saturday, June 2, 2018, 11:32:40 PM EDT, Mike Woods <mhwoods@...> wrote: Jack
The nextion displays have a built in processor on the driver card.? This is configurable with a supplied Windows client.
Essentially the nextion talks to the raduino with serial commands sending "meta commands".? E.g. I am now on 3.512.245 MHz.??? Or in the other direction, "LSB selected".?? In codes of course!
This provides complete independence between the display software and the hardware control of the rig.?? People can come up with their on UX for the display independent of a standardised protocol being developed to interface with the CEC firmware.
Makes a whole lot of sense to me!
Mike ZL1AXG ubitx.net
On 3/06/18 2:12 PM, Jack Purdum via Groups.Io wrote: I see a lot of post about the Nextion display. What advantages does the if have over the mcufriend displays? On Saturday, June 2, 2018, 4:30:23 PM EDT, Allen Merrell via Groups.Io <kn4ud@...> wrote: I have a 3.2 ordered and waiting for it to arrive. I am using the 1.08CEC firmware from Dr. Ian and like it a lot. I am adding 8 switches to it. I know the manager has options for 6 but I am adding one for FKEY and momentary toggle for PTT. I would appreciate any information I can get on the Nextion Display. I downloaded the software on the Nextion site but have not loaded it yet to check it out. Thanks Dr Ian for all your great work.
73's kn4ud
kn4ud@...
--
Allen ?Merrell
? ?
?
|
Nextion displays , by default are touch screen , Serial Displays ? ?
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Show quoted text
From: [email protected] < [email protected]> On Behalf Of Jack Purdum via Groups.Io Sent: Sunday, June 3, 2018 6:00 PM To: [email protected]Subject: Re: [BITX20] Nextion Display ? I just wondered, as we're using the BuyDisplay.com displays which also offload the processing to the display. We're using the SPI interface with the touch screen feature as well. Are the Nextion users also using a touch screen feature? (I wasn't a touch screen fan at first, but now I really like it. Much more direct than encoder scrolling.) The JackAl display looks like: 
On Saturday, June 2, 2018, 11:32:40 PM EDT, Mike Woods <mhwoods@...> wrote: Jack
The nextion displays have a built in processor on the driver card.? This is configurable with a supplied Windows client.
Essentially the nextion talks to the raduino with serial commands sending "meta commands".? E.g. I am now on 3.512.245 MHz.??? Or in the other direction, "LSB selected".?? In codes of course!
This provides complete independence between the display software and the hardware control of the rig.?? People can come up with their on UX for the display independent of a standardised protocol being developed to interface with the CEC firmware.
Makes a whole lot of sense to me!
Mike ZL1AXG ubitx.net
On 3/06/18 2:12 PM, Jack Purdum via Groups.Io wrote: I see a lot of post about the Nextion display. What advantages does the if have over the mcufriend displays? On Saturday, June 2, 2018, 4:30:23 PM EDT, Allen Merrell via Groups.Io <kn4ud@...> wrote: I have a 3.2 ordered and waiting for it to arrive. I am using the 1.08CEC firmware from Dr. Ian and like it a lot. I am adding 8 switches to it. I know the manager has options for 6 but I am adding one for FKEY and momentary toggle for PTT. I would appreciate any information I can get on the Nextion Display. I downloaded the software on the Nextion site but have not loaded it yet to check it out. Thanks Dr Ian for all your great work.
73's kn4ud
kn4ud@...
--
Allen ?Merrell
?
|
Hello Allen, ? It has its own IDE and commands are pretty simple to use , since everything is serial. ? Learn by examples and YouTube Tutorial ? regards charudatt-vu2upx ?
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From: [email protected] <[email protected]> On Behalf Of Allen Merrell via Groups.Io
Sent: Sunday, June 3, 2018 9:09 PM
To: [email protected]
Subject: Re: [BITX20] Nextion Display ? Jack, that is a very nice looking display, very impressive.?
Nextion ?users I would like to know what software is the easiest to use with it I downloaded their software and find it about as user friendly as an alligator , or it is to me. I am not finding any real good documentation on the v0.53 that is current and the older docs just don't ?seem to match up.
kn4ud ?
--
Allen ?Merrell
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Peter, ? I did join the group, but all that¡¯s discussed is the use of this display in DMR use. ? Hope the interest spreads in other areas also. ? regards charudatt-vu2upx ?
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From: [email protected] <[email protected]> On Behalf Of Peter M?llers via Groups.Io
Sent: Sunday, June 3, 2018 11:08 PM
To: [email protected]
Subject: Re: [BITX20] Nextion Display ? What i really love with this sort of display: You could change the design and the whole UI without touching any code on the Arduino (or whatever board you are using).
The Nextion Editor is not the prettiest one, but after some practice it's working fine.
If you are interested, there is a helpful public Facebook group:
NEXTION - HAM-Radio screens -?
73, Peter
DL5YDA
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Peter, this is a very interesting ?Facebook page. Thanks for posting it.
kn4ud ?
--
Allen ?Merrell
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Since most of the circuits are
bidirectional, and you can hear birdies, is still sounds like the
antenna is not connecting to the receiver. Check relays K1 and K3
are not energized. Either one being pulled in will cause the
problem. You could bypass the relays, and connect the antenna to
the input of the low pass filter at C200 L1, as a quick test with
a jumper wire.
On 6/3/2018 2:24 PM, hakan.sjostrom@... wrote:
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No,?(a LW antenna).
I have tested the transmitter (works), but the receiver doesn't
work
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Al, many thanks for posting this. Wiring that up is the next step in my project and I was getting ready to look into this. You saved me the effort.
I'm thinking of routing the hi level audio off the volume control (the yellow wire) to one of the 3.5 mm jacks for line out and the mic input (the violet wire) to the other so I can feed audio into the sound card for digital stuff...psk, etc.
I haven't figured out what the DB-9 is for, CAT control maybe?
73...? ? ?Mark? ?AA7TA
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No,?(a LW antenna). I have tested the transmitter (works), but the receiver doesn't work
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Sounds like you forgot to connect the
antenna?
On 6/3/2018 2:08 PM, hakan.sjostrom@... wrote:
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Hi, I just finished
my uBITX build. I was extremely careful with the wiring and double
checked everything. The weather is extreme warm for the season
here in Sweden. That's probably (;-) why I got a brain collapse
and shifted the 8-pin contacts for the raduino resp. uBITX. I
realised it after a short while. Everything looks ok, but I hear
no signals, just birdies. Not a sound of even strong broadcast
stations. Any hints?
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Hi, I just finished my uBITX build. I was extremely careful with the wiring and double checked everything. The weather is extreme warm for the season here in Sweden. That's probably (;-) why I got a brain collapse and shifted the 8-pin contacts for the raduino resp. uBITX. I realised it after a short while. Everything looks ok, but I hear no signals, just birdies. Not a sound of even strong broadcast stations. Any hints?
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Re: how find wiring ssm2167 on ubitx
Take the purple wire off the mic jack.? Run a wire from the mic jack to input of the ssm2167 module.?? Tap into the Green 5v+ and Yellow Gnd for the key and solder them to the ssm2167 board.? Put a 4.7k resistor from 5v+ to the input on the board to provide bias to the microphone.? Put a 10k ohm potentiometer? between output and ground and put the purple wire from the mic jack to the center.terminal.? My potentiometer is set 20-30% from maximum.? Ask a contact how it sounds and adjust from there -- Lee - N9LO? "I Void Warranties"
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Re: RF power chain mods and improvements..
I just looked for spurs on the
frequencies you mention, and all the spurs I see are nearly -60db
from the carrier level. Is that a problem?
Howard
On 6/3/2018 12:27 PM, ajparent1/KB1GMX wrote:
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The spur of
interest is predictable;? ?Fspur= 45mhz - output frequency(mhz)
For? ? Spur at
29? ? ? ? 16
28? ? ? ? 17
24.9? ? ?20.1
21.45? ?23.55
None above are filterable with simple low pass filter for the band
of inerest its a band pass issue.
18.1? ? ?26.9? ?(happens to be higher than the 20m to 17M low pass
filter. and not as big a problem
It occurs at 45mhz minus the output frequency so for 28mhz the
spur will be at about 17mhz during transmit.
Its level ican be as much as -50dbc or if the audio drive is
turned up to near overdrive -25dbC
as measured before the power amp.? Since the amp is has more gain
at lower frequencies?
the spur may be 3-6 db stronger.
It can only happen for the band that use the 30mhz low pass filter
(20mhz and up).
All the other bands lower the inboard 9 element low pass filter at
33-35mhz stops it
and the band selected filters with cutoff lower than that (80, 60,
40 30, 20, 17M)
are better but try to not over drive.
This is true for all modified or not.? None of the mods (anyones)
are the case its
generated by the base radio and is only there if running SSB.? The
CW
generation scheme does not create or use the 45mhz IF.
The only fix is a before the amp bandpass filters for 15, 12 and
10M and they have to be?
fairly narrow.
I'm still looking at other ways to deal with this but its there.?
I have stopped with amp
work for the moment as a flat amp helps and also makes it worse.
Allison
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What i really love with this sort of display: You could change the design and the whole UI without touching any code on the Arduino (or whatever board you are using).
The Nextion Editor is not the prettiest one, but after some practice it's working fine.
If you are interested, there is a helpful public Facebook group:
NEXTION - HAM-Radio screens -?
73, Peter
DL5YDA
|
how find wiring ssm2167 on ubitx
Hello Jacob,
Thank you for your answer, I just have a little problem, I do not know the technique of the arduino well and I do not want to be silly, it's the same for the module ssm2167, if you can send me a tip schematic connection, it would be useful my email address is f6cht@... 73s'qro Joel f6cht
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Yes you could but make sure you get the levels going to the TT right.
There are other arduino based VFOs that could do the same work.
Either way your rewriting the code as the raduino does things that you
don't need other than cat.?
Allison
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Re: RF power chain mods and improvements..
>>>Below 22.5 MHz, a LPF cuts in with a threshold just above 22.5 MHz, killing off all the unwanted mixer products.
Above 22.5 MHz, a HPF cuts in with a threshold just below 22.5MHz, again killing off all the unwanted mixer products.<<<
Sounds plausable but then try a typical 7 pole HPF or LPF and see what it looks like.
They need to add more than 10DB at the spur frequency.? A?workable LPF with 22.5 at
least 10DB down will kill 21Mhz.? ?A HPF with 22.5 down 10 db will hurt 24.99mhz
but would work for 10M.? Look at the sort table posted at 28Mhz the spur is 11mhz
away and on the low side and at 21.45 its 2.11mhz away? on the high side.? At 24.99
you have the spur at 20.1 so maybe a low pass will work.
Its compromise either way band pass works but you need three.? For 10M adding high
pass works well enough?and is easy to switch in using the existing signals.? The 12M
case is maybe possible with HPF used for 10.? The 15M case is however a band pass.
?
Try Elsie or one of the other filter programs to see.? You need less than 1db at the
desired and more than 10db? at the expected spurs.? ?Also teh return loss need to
be good as the output of the 45mhz miser needs to see a good load or it gets worse.
Allison
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Lee
Joel Fournol