Re: Posts not showing up in forum
Gentlemen,
?Posts, posts, posts, are peppering my email every day. I love the BITx radios but I don't need every post to come alive
on my email. Editing my preferences doesn't seem to help so I just unsubscribed to this group. If you can eliminate all
posts from my mail I will re-join this group in the near future. Thanks in advance to the webmaster of this group.
John?
toggle quoted message
Show quoted text
They are now showing up, Jason. From memory, the first post by a new member is always moderated, so it wont appear until that has occurred. That said, if you tried to make several posts before the moderation had
occurred, I guess they would also be slow to appear.
On 26/01/2017 9:56 PM, Jason N3YUG wrote:
Hello all, I have been reading a good amount in the BITX forum, and tried to reply with a few comments, but nothing shows up.
SO I am going to try starting a new topic. Any ideas on what is going on?
Thanks and sorry to clutter the forum with this.
Jason
N3YUG
|
Hello all, Looked through the archives and see many complex (for me) topics covered, so this one should be simple -- for someone else on this list, that is. Built an earlier, through-the-hole BitX 20 kit (QRPKits.Com) for someone. ?Looks great! ?Doesn't work great, however. Problems:? 1.) Received SSB signal audio fairly weak, but nice strong birdie on ~14.300. ?Audio stage appears pretty functional with 'finger test' on components. 2.) PTT switch produces nice strong 9 watt carrier. ?But this isn't supposed to be an AM rig. ?What's up with that, please? Any and all help would be greatly appreciated. There are three of us trying to figure this out, all older hams, and not one of us has a clue. Thank you,
72/73,
Don
McBride, K3RLL ? ?<>< ? ? ? ? ?
K1 #2613 | KX1 #2396 | K2
#1569 | KX3 #4565 | ?K3 #8404
PB #187 ?| ? NAQCC #1905 FC7 ? | ?FISTS
#13504cc 2064
FP #1843 ? ? | ? ? QRPARCI #3881 ? ? | ? ?SKCC #3133 c337
|
Re: Thoughts & Questions de W8LM - 2st POST
In terms of RFI shielding, wouldn't a metal case be better, or
are levels so low that it isn't an issue.
On 1/25/2017 11:38 PM, Lawrence
Macionski via Groups.Io wrote:
toggle quoted message
Show quoted text
My BITX40 Arrived INDIA to KANSAS 20 days 1/3 to 1/23. The
BITX40 was my Show & Tell at the W0VFW club meeting last
night. I played W5KUB's video of his BITX40 QSO- Tennessee to
South Africa. In my 1st post, I mentioned these 2 items WORTH
LOOKING IN TO:
Electronic Plastic Shell Cartridge Handle Project Case
Desk Instrument 200x175x70mm
$9.99 USD free shipping Ordered 1/3 arrived 1/20 China to
Kansas
HM100N-Microphone-for-Mobile-Radio-F121-F221-F521-F621-F5011-F5021-F1721
Shipped was an ICOM HM-118N microphone with up-down buttons.
$9.95 USD free shipping. Ordered 1/3 arrived 1/14 China to
Kansas
I have posted pictures of the PROJECT CASE with BITX40
preliminary placed inside case for sizing? and the ICOM $9.95
Microphone. I now have $79 in my project.
MY PICTURE ALBUM IS----- W8LM BITX40 + RADUINO? Click
on PHOTOS on the left to view 6 pictures.
|
RADNINO/VFO/DRO Not working
Recently assembled my BITX-40 with DIGITAL READOUT/ VFO
and was testing TX & RX...?? Seemed to be working OK. ?
?I turned it ON and OFF after about 1hr and the Digital Display
instead of reading out Frequency placed "rectangles" where
?the numbers were located..? It appears that the Raduino
VFO is no longer working.? I tested the main board by
replacing the RADNINO UNIT with the supplied L4 Coil and the
main board works as it is sup[pose to.? ?
Any suggestions on how to test or repair the RADNINO UNIT? ?
Could be hardware or software??? 
ANY SUGGESTIONS?
BOB
K6YN
|
Re: VFO & Digital Read out Does Not work
I just assembled my BITX-40 with DIGITAL READOUT/ VFO and was testing
TX & RX... All seemed to be working OK, for an hour. I turned it ON and OFF after about 1hr and the
Digital Display instead of reading out Frequency placed "rectangles"
where the numbers were located.. It appears that the Raduino VFO is no longer working.
I tested the main board by replacing the RADNINO UNIT with the supplied L4 Coil and the
main board works as it is suppose to.
Any suggestions on how to test or repair the RADNINO UNIT? Could be hardware or software???
ANY SUGGESTIONS?
BOB
|
I haven't even soldered the first wire?but trying to understand the radio and the Uno has been a fantastic learning experience. I was surprised that I already knew the answer to which wire to ground to calibrate it. The correct information and color are defined in the sketch. The best fifty-nine educational dollars I have ever spent even if I never put the radio together. (Just awaiting my case and a couple of other items and you can bet it will be built.). My hats off to the developer/manufacturer and all the contributors?to the forum. Thank you! v/r Fred W4JLE
|
I 3-D printed mine from an STL on Thingiverse. Working on printing a box, now...
Rich KC8MWG
On Friday, January 27, 2017 9:56 AM, Art Olson via Groups.Io <olsonaj6927@...> wrote:
You can also check this site out. Locate a bezel that will fit, select the order link, pay for it and within a few days the bezel will be sent to you. I just ordered a bezel for a 2.8 TFT display. If you have a #d printer you can just download the file and print at home 73 art
|
You can also check this site out. Locate a bezel that will fit, select the order link, pay for it and within a few days the bezel will be sent to you. I just ordered a bezel for a 2.8 TFT display. If you have a #d printer you can just download the file and print at home 73 art
|
Re: transmitting CW with Raduino Bitx40?
?I see how you are injecting the audio into the mike jack and understand about the DPDT to use the mike or the key... But, how are you doing the PTT switching? ? ? On 01/24/17, VE7BEE<obeebe@...> wrote:? Try the above circuit , it works , the signal seems clean and it is small . I have not tried it on 40M yet as I am converting a BITX40v3 to 80 M . Tested it tonight , I get full output on CW on 80 M . I have the AF adjusted to approx 1k audio note via the 20 k pot . I am also going to put an adjustment pot in the sine wave output so as not to overdrive the TX . MODS : I changed the 2 - .003 uf to .002 as that is all I had in my junk box . Since I am running 12 V input , I changed the 6.8 k to 10 k ?and it still works on the bench hooked up to the BITX. The circuit is stupidly simple and seems very stable. I just installed the key in series with the sine wave output to the mic connection . Going to install a DPDT switch to disconnect mike and connect audio generator for CW . Simple and it works . 73s Buzz
|
Re: Dot notation for transformers
Excellent! Brilliant!
I think this will be a great demo for my students. ?I love the DIP connector to keep wires in correct phase.
Thanks
|
Re: Info a out buying BITX40
It works in Single side band voice and CW (telegraph) aside from working as a radio it is a terrific learning tool. He will definitely enjoy it, ? v/r Fred W4JLE ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of sara.rolle@...
Sent: Thursday, January 26, 2017 18:02
To: [email protected]
Subject: Re: [BITX20] Info a out buying BITX40 ? Thank you very much! I wat to buy this for my father (I1hkj). Can I ask you how it works for you? Do you use it in voice mode or also telegraph? (Sorry, i don't know all the technical terms, as I said, it's for my father).? Thanks Sara
|
John,
Good news.
And your customer support is this group :)
Propose we all reset ourselves and start again.
Ron - PA3FAT
Sent from my iPhone
On 27 Jan 2017, at 01:01, John Smith via Groups.Io < johnlinux77@...> wrote:
toggle quoted message
Show quoted text
Thank you "ron van doremalen" for your suggestion?to re-install the sketch. It actually worked. But the tuning with the?potentiometer?is
a bit flakey. I suspect a short occurred. It tunes too fast going up and too slow going down. Not like it did originally. But now I have something to work with. And I can try "?Joel
Caulkins" suggestion of shorting the red wire. I just looked at the sketch and found "#define CAL_BUTTON (A2)". So it is confirmed that the red wire is for calibration.?
Progress can be made in spite of hatred.
I am glad I didn't take Jack's offer.
If I went away like he wanted, this information would not be discovered and shared. I regret falling in to it with the haters and being ugly too.
|
Re: Info a out buying BITX40
my father loves this kind of things: he has a strong knowledge about circuits and how to adapt them for other purposes or upgrades, so there are no problem. For a period he build antennas and othe stuff for other ham in the area he lives.? I think he would have big fun with this gift. I know that ho loves CW, but if the "hack" is as described in the forum, I think there are no problems at all. thanks a lot.? Newt times you will talk with him ? Kinds Sara
|
Re: Low power, RV1 unresponsive
Try increasing the drive with R 136.
Please always leave the old message below so that others can follow and see whose comment you are replying to.
I am not sure if you are replying to my suggestion or to someone else!
Raj
toggle quoted message
Show quoted text
At 27-01-2017, you wrote: I replaced IRF510.
bias current = .100A
Output = 3W at HAAAALLLLLLOOOOOOO.
Current draw .650A at HAAALLLOOO.
Chuck
|
Re: Low power, RV1 unresponsive
I think my test was flawed i.e. the current test that pointed toward the IRF.? Anyway, back to the drawing board. Chuck
|
Can't say - I have no idea what the "cap discharge through a transistor" approach is, and haven't yet found anything about it in searches.
|
I'm not a hater...never have been. I simply wanted to end the wasted bandwidth after everyone had already explained the situation. I'm glad you got it going.
Jack, W8TEE
From: JP McGinley <j.p.mcg@...>
To: [email protected]
Sent: Thursday, January 26, 2017 7:10 PM
Subject: Re: [BITX20] Customer Noservice.
John, I accept your apology, hope others will also.? ? I understand we all work hard for our money. I think people sometimes should wait a day before hitting the "send button". I usually do and re-write what was originally composed.? Glad you are getting the BITX to work. Hope all the best with their BITX. ? ?I still have not wired mine up, got one of the originals and then the display. I'm a procrastinator...there's always tomorrow. :-)?
J.P. On Jan 26, 2017, at 7:01 PM, "John Smith via Groups.Io" < johnlinux77@...> wrote: Thank you " ron van doremalen" for your suggestion?to re-install the sketch. It actually worked. But the tuning with the?potentiometer?is a bit flakey. I suspect a short occurred. It tunes too fast going up and too slow going down. Not like it did originally. But now I have something to work with. And I can try "?Joel Caulkins" suggestion of shorting the red wire. I just looked at the sketch and found "#define CAL_BUTTON (A2)". So it is confirmed that the red wire is for calibration.? Progress can be made in spite of hatred. I am glad I didn't take Jack's offer. If I went away like he wanted, this information would not be discovered and shared. I regret falling in to it with the haters and being ugly too.
|
|
|
Re: Thoughts- de W8LM 3rd post
I would also suggest Jameco.com.
Marco - KG5PRT
On Jan 26, 2017 8:25 PM, "Steve Robertson" < bobs_otr@...> wrote: Digikey is another good source, huge selection, good quality products, small orders welcome, fast shipping, and ridiculously cheap shipping costs if you go first class mail, which usually gets to me in Nebraska in two day, three max.
.
|
remove the two caps and try. - f
On 27-Jan-2017 3:54 am, "Ken" < chase8043@...> wrote: Now that I have the bitx working again with the arduino, I built an off board BPF for 20m.
Using VFO - BFO (25.998600 MHZ -?11.998600 MHZ), the VFO is greatly attenuated when it reaches T2. All I'm getting is 700 mv p-p.
I am assuming that the Q7 to Q9 circuitry is attenuating it. Maybe C91 and C92 have something to do with it. I will investigate.
Guess I can try switching to VFO + BFO to check.
I will post my results.
73
Ken VA3ABN
|
atouk
Raj vu2zap