Re: Catching up! TFT VFO and firmware
Thank you Allard, my word ... you have been busy :)
73 Carl M0ICR
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Thanks Arv and others ...
I had a dim recollection of unrar at command line, but lazy me did the reboot.
This despite the lottery of "how many updates is it going to insist on before usability?" (I don't go there much) - plus the interminable wait in the startup splash-screen - and the second lottery of "how many updates arrived while I was here, that it will insist on - "please do not shut down until completion" (at peril of complete destruction of the total machine!), and the interminable wait in the shutdown/reboot phase.
Fortunately neither lottery was enacted, and I was able to get in and out relatively unscathed (this time).
The unit looks relatively simple, but that's deceptive and one would need to build one's own 'from the ground up' to understand each component's purpose and interaction/s to follow its operation. An addition to the text file giving 'theory of operation' would be very handy.
73, all, but I'll be trying VU2ESE's scheme and my version of it (when my Raduino arrives).
Dex ZL2DEX
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I'd appreciate a functional description of the blocks as I'd like to introduce custom upgrades if I may.
I have the instrumentation to help with the project, Rigol DSA & TG, 8753D VNA, Tektronix Calibration gear for amplitude, 3 channel variable linear PSU, Agilent NF analyzer and noise source, Agilent F. counter, Rubidium reference, DSOs (4) , Sig gens - HP4432B? Digital, 6 1/2 digit DMMs, LCR meters, micro wattmeter (Boonton 4510), precision RF 50¦¸ loads, precision attenuators. Bird 43 with H band slug, 50W. ? All instrumentation gear good to 3Ghz or better.
--
AncelB, MIT EE6002
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Re: Catching up! TFT VFO and firmware
On Fri, Oct 6, 2017 at 01:50 pm, <m0icr@...> wrote:
(2) What is the latest version of Radiuno firmware and is there a simple guide to word each version noting that I am at v1.11
A lot of new functionalities have been added since v1.11. The latest version is v1.24 See for a complete overview of all releases. 73 Allard PE1NWL
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Model A should do, we have a 12 Mhz filter further ahead of it to take care of the final bandwidth.
- f
On Sat, Oct 7, 2017 at 2:58 AM, Karl Heinz Kremer, K5KHK <khk@...> wrote: Ashhar, back in?/g/BITX20/message/33203?p=Created,,45M15A,50,2,0,14278989?you mentioned either the 45M15A or 45M15B - both are available on Aliexpress. One has a slightly higher insertion loss, but is a 4 pole vs. a 2 pole filter. Is there any benefit to using the "B" version vs. the "A"??
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Dex
These might be of interest:
There is much other information on how to unrar files on Linux.? Just do a
Google search for "unrar Linux".
Arv
_._
On Fri, Oct 6, 2017 at 3:10 PM, Dexter N Muir <dexy@...> wrote: Thanks for the agc link, WB5YYM, but I need to reboot! I run Kubuntu (Linux), and its 'uncompresser' is Ark which can't handle .rar files. :(? Back to usloth windblows - 10th iteration kludge of munged CP/M ...
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There is an unrar application for?Linux. It may already be installed on your system, but you may have to use the command line in order to use it.
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Ashhar, back in? /g/BITX20/message/33203?p=Created,,45M15A,50,2,0,14278989?you mentioned either the 45M15A or 45M15B - both are available on Aliexpress. One has a slightly higher insertion loss, but is a 4 pole vs. a 2 pole filter. Is there any benefit to using the "B" version vs. the "A"??
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Thanks for the agc link, WB5YYM, but I need to reboot! I run Kubuntu (Linux), and its 'uncompresser' is Ark which can't handle .rar files. :(? Back to usloth windblows - 10th iteration kludge of munged CP/M ...
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Re: Catching up! TFT VFO and firmware
The TFT board is available for $8, and include domestic shipping. The manual is posted on the User's Group web site. The problem is that, on foreign orders, I have to send it Parcel Post and fill out export forms. As I recall, sending 1 board was around $14. Sending 5 boards was around $14! It would be nice it there were several other people interested and could gather their orders to spread out the shipping costs.I'm happy to sell the board; I just feel badly about the shipping costs.
Jack, W8TEE
From: "m0icr@..." <m0icr@...>
To: [email protected]
Sent: Friday, October 6, 2017 4:50 PM
Subject: [BITX20] Catching up! TFT VFO and firmware
Hi all,
I have been taking time off from the Bitx40 recently - mostly in order to work on my two QRP Labs QCX transceivers (one on 40m and the other on 20m), I must admit I have had lots of fun with them.
Now, after a gap, I am returning to the Bitx40 and remembering why enjoyed building it and operating it so much. Like the QCX I have two BItx40 (both with Radiuno), both are currently on 40m although the plan was always to multiband one of them - ideally for 20m and 10m (the 10m was to work as a transverter driver for my 6m).
The firmware on both Bitx40 is ver 1.11 although I am aware there were quite a few additions.
So, my question:
(1) I recall there was a TFT VFO being developed by Jack, is that PCB still available and is it possible to order one for delivery to UK please?
(2) What is the latest version of Radiuno firmware and is there a simple guide to word each version noting that I am at v1.11
?
Vy 73, looking forward to some more Bitx to Bitx QSO soon.
de Carl M0ICR, London,UK
?
?
?
?
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I bought some from WTL Crystals. Here is something similar:
On Sat, Oct 7, 2017 at 2:10 AM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote: Thanks for posting that!
Curious about your 45 mhz crystal filter.
I don't see any google hits for a 45M15F, perhaps that's a 45M15A?
The 45M15A looks tough to get from the usual distributors, but does exist.
Mouser has the ?similar ECS-45K20A in stock for $6.00, that might work.
Though impedance matching network may have to change.?
On Fri, Oct 6, 2017 at 01:10 pm, Ashhar Farhan wrote:
I am plodding through the write-up part of the new version. in the meantime, here is just the schematic. not very different.
?
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not sure if this is interesting for the group or not, but some time ago found this?
solid state relay board.
Any suggestions for use ie bitx 40/20??
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Catching up! TFT VFO and firmware
Hi all,
I have been taking time off from the Bitx40 recently - mostly in order to work on my two QRP Labs QCX transceivers (one on 40m and the other on 20m), I must admit I have had lots of fun with them.
Now, after a gap, I am returning to the Bitx40 and remembering why enjoyed building it and operating it so much. Like the QCX I have two BItx40 (both with Radiuno), both are currently on 40m although the plan was always to multiband one of them - ideally for 20m and 10m (the 10m was to work as a transverter driver for my 6m).
The firmware on both Bitx40 is ver 1.11 although I am aware there were quite a few additions.
So, my question:
(1) I recall there was a TFT VFO being developed by Jack, is that PCB still available and is it possible to order one for delivery to UK please?
(2) What is the latest version of Radiuno firmware and is there a simple guide to word each version noting that I am at v1.11
?
Vy 73, looking forward to some more Bitx to Bitx QSO soon.
de Carl M0ICR, London,UK
?
?
?
?
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Thanks for posting that!
Curious about your 45 mhz crystal filter.
I don't see any google hits for a 45M15F, perhaps that's a 45M15A?
The 45M15A looks tough to get from the usual distributors, but does exist.
Mouser has the ?similar ECS-45K20A in stock for $6.00, that might work.
Though impedance matching network may have to change.?
toggle quoted message
Show quoted text
On Fri, Oct 6, 2017 at 01:10 pm, Ashhar Farhan wrote:
I am plodding through the write-up part of the new version. in the meantime, here is just the schematic. not very different.
?
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Maybe because it's so efficient, you're hearing yourself "long path".? :>)
Jack, W8TEE
From: Brent Seres <brentseres1@...>
To: [email protected]
Sent: Friday, October 6, 2017 2:01 PM
Subject: [BITX20] More questions
Hi again. I'm having a blast with this radio. I don't know if I'll ever get the case on it, because there are so many improvements to make. Thank you for all the AGC info.
It seems as one question gets answered, another one comes up.
Why can I hear myself talking for a second or so after I press the PTT? I can explain the lm386 action, as the power supply filter cap needs to discharge, however it looks like the audio path should be disconnected by K2 when you go to TX. Also, I found that in order to get the anti chunk 2n7000 circuit to work properly on my rig, I needed to put a .01 mfd capacitor between the volume control wiper and ground. That being said, the fet circuit is currently connected to the rig with foot long clip cords, so maybe some stray pickup?
Thanks again
Brent
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I am plodding through the write-up part of the new version. in the meantime, here is just the schematic. not very different.
- f
On Sat, Oct 7, 2017 at 12:17 AM, tArthur Bryant <arthur.bryant@...> wrote: Ashhar,
Are you going to publish the updated schematic? I have started buying parts to the uBITX, but I have not bought all of them. It would be easy for me to change to a different schematic. Unfortunately I am a electronics technician and not an engineer so it is hard for me to redesign the circuits. But I want to build a uBITX for portable us with a laptop for PSK31. Thank you for sharing your designs.
Art
KB8HGW
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Ashhar,
Are you going to publish the updated schematic? I have started buying parts to the uBITX, but I have not bought all of them. It would be easy for me to change to a different schematic. Unfortunately I am a electronics technician and not an engineer so it is hard for me to redesign the circuits. But I want to build a uBITX for portable us with a laptop for PSK31. Thank you for sharing your designs.
Art
KB8HGW
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Hi again. I'm having a blast with this radio. I don't know if I'll ever get the case on it, because there are so many improvements to make. Thank you for all the AGC info.
It seems as one question gets answered, another one comes up.
Why can I hear myself talking for a second or so after I press the PTT? I can explain the lm386 action, as the power supply filter cap needs to discharge, however it looks like the audio path should be disconnected by K2 when you go to TX. Also, I found that in order to get the anti chunk 2n7000 circuit to work properly on my rig, I needed to put a .01 mfd capacitor between the volume control wiper and ground. That being said, the fet circuit is currently connected to the rig with foot long clip cords, so maybe some stray pickup?
Thanks again
Brent
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Here us the link to the download page of Sunil's AGC. There is lots of information in the download, I just don't know what to do with it. ?
Then select agc
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Thanks for the info. Yes, i noticed the 2 filters interact. I built a tiny breadboard to plug the relays and filters. Tried various things, even built some other filters and still get the swr issue..
I have an ant analyzer and it shows the filter bw etc - seem ok....
Must play around some more....
Joe VE1BWV
On Fri, Oct 6, 2017 at 11:35 AM, Mike via Groups.Io <mikeymustang2000@...> wrote: Joe,
I can't remember but on the low pass I THINK I had to remove a turn to move frequency up. I may have done it to the band pass also. On my rig band pass adjusment effects low pass. Aso my filters work better connected ?close to the board. I am working on remote switching via the qrp-labs relay boards but the tuning changes slightly .?
Hope this helps!
Mike WA3O?
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Ancel
Allard PE1NWL
Vince N2AIE
Arthur Bryant
Brent Seres/ VE3CUS