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Re: KD8CEC v.1.095 CW Issue
#ubitx
#ubitxcw
#ubitx-help
¿ªÔÆÌåÓýVery good. Is version 1.097 stable yet? Are you using it personally? ? David A Posthuma, WD8PUO 1 (616) 283-7703 ? From: [email protected] <[email protected]> On Behalf Of Art Olson
Sent: Sunday, September 02, 2018 5:01 PM To: [email protected] Subject: Re: [BITX20] KD8CEC v.1.095 CW Issue #ubitx #ubitxcw #ubitx-help ? It¡¯s in version 1.097
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Re: KD8CEC v.1.095 CW Issue
#ubitx
#ubitxcw
#ubitx-help
¿ªÔÆÌåÓýKD8CEC ?V.1.095 FEATURE REQUEST ¨C RE: CW Settings. Overall, I love what you have done with version 1.095. However, I wish the CW settings could be managed better. It appears that the only way to change key-type and speed is to push the main encoder, make sure Setup is On, and then find the CW type menu item. In the next firmware revision, can we have the table in the bottom left corner of the display that communicates CW information be selectable and bring us right into a large on-screen menu to make these menu selections one level deep instead of 4-5 levels deep in the menu structure? As it is, CW settings are not intuitive and it¡¯s a bit cumbersome to work with. ? Please forgive my critique, your work is truly incredible, ? David A Posthuma, WD8PUO 1 (616) 283-7703 ? From: [email protected] <[email protected]> On Behalf Of David Posthuma
Sent: Sunday, September 02, 2018 4:39 PM To: [email protected] Subject: Re: [BITX20] KD8CEC v.1.095 CW Issue #ubitx #ubitxcw #ubitx-help ? Mike: ? The 1.095 firmware screen reads ¡°straight¡± for key setting, but when I go into the menu, I cannot find anywhere to change that setting. Nor is the screen label on the screen selectable to change it????? I would think selecting Key-type and keying speed should be a very easy change right from the touchscreen main screen. But I am unable to change any of these settings. ? David A Posthuma, WD8PUO 1 (616) 283-7703 ? From: [email protected] <[email protected]> On Behalf Of Mike Woods ? David
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Re: KD8CEC v.1.095 CW Issue
#ubitx
#ubitxcw
#ubitx-help
¿ªÔÆÌåÓýMike: ? The 1.095 firmware screen reads ¡°straight¡± for key setting, but when I go into the menu, I cannot find anywhere to change that setting. Nor is the screen label on the screen selectable to change it????? I would think selecting Key-type and keying speed should be a very easy change right from the touchscreen main screen. But I am unable to change any of these settings. ? David A Posthuma, WD8PUO 1 (616) 283-7703 ? From: [email protected] <[email protected]> On Behalf Of Mike Woods
Sent: Sunday, September 02, 2018 2:45 AM To: [email protected] Subject: Re: [BITX20] KD8CEC v.1.095 CW Issue #ubitx #ubitxcw #ubitx-help ? David
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Re: VK4PP uBitx LPF BANK add-on Board
¿ªÔÆÌåÓýNice and simple.? Why don¡¯t you give us the OSHPark link and we can just order some of these instead of designing our own¡? ? ? From: [email protected] [mailto:[email protected]] On Behalf Of James Lynes ? Received my version of an external LPF board from OSHPark. To second Jerry's comments, OSHPark has a very nice front end process. ? This board is 1.5in by 3in sized for T68 cores and 1206 caps to provide flexibility for use in future projects. Footprints are provided for both BNC connectors and header pins for input and output. ? Get a copy of "Make Your Own PCBs with Eagle" by Simon Monk and you can make your own boards for the investment of a small learning curve. ? James KEMIQ ? -- ¡_. _._ |
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Re: VK4PP uBitx LPF BANK add-on Board
James Lynes
Received my version of an external LPF board from OSHPark. To second Jerry's comments, OSHPark has a very nice front end process. This board is 1.5in by 3in sized for T68 cores and 1206 caps to provide flexibility for use in future projects. Footprints are provided for both BNC connectors and header pins for input and output. Get a copy of "Make Your Own PCBs with Eagle" by Simon Monk and you can make your own boards for the investment of a small learning curve. James KEMIQ |
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Re: UBITX TX level diagramme
Thanks for doing this. The diagram is very informative (need this diagram for the uBITx too). You are correct but a BPF (not LPF) after the mixer is probably better since the mixer is where most of the real nasty harmonics originate...
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-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Henning Weddig via Groups.Io Sent: Sunday, September 2, 2018 2:46 PM To: [email protected] Subject: [BITX20] UBITX TX level diagramme All, in preparing my talk to be held at the "UKW-Tagung" in Weinheim Germany next Saturday about my UBITX I prepared a level diagramme with some assumptions: the maximum powe rlevel at the input of a mixer is in the range of -1 dBm (near the 1 dB compression point?) The result is intersting: als Allison already stated the gain of the TX stage after the first mixer is 48 dB under these assumptions. My guess is that "normally" a lower level (-10 dBm) will do better in respect of IMD resulting in nearly 60 dB of gain! Another guess for the resultant spurs observed at higher output frequencies: the bidi amp (45 MHz) is not free of harmonics, i.e. also can and will produce harmonics! If true, these harmonics could be easily removed by introducing a low pass filter between the mixer ("45 MHz port") and the mixer itself. Who can and will try this mod? Henning Weddig DK5LV --- This email has been checked for viruses by AVG. -- ¡_. _._ |
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Re: Perspex Case
¿ªÔÆÌåÓýBoom Box uBITx¡ ? ? From: [email protected] [mailto:[email protected]] On Behalf Of george.ellis@... ? Just couldn¡¯t hide the beautiful electronics ? -- ¡_. _._ |
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Re: Ubitx V3 Please Help, ANTENNA Pins on PCB have SHORTED no Receive
#ubitx
#ubitx-help
On Sat, Aug 25, 2018 at 04:41 AM, Bill Cromwell wrote:
Hello Fabian,If you trace the circuit from the antenna it will lead you through several relay contacts to an inductor to ground. That is a piece of wire that wraps around and around with or without a core. Your meter uses direct current to measure resistance and continuity. Direct current sees any inductor as a plain old piece of wire - a short. So it sees that inductor to ground as a dead short. At RF frequencies however, it is NOT a short. Most - maybe all - radios will have this:)Ok thank you, too now i am know this and i'm verry happy to know everything new from HAM and Radio technics. So you should continue looking elsewhere for the problem.Have you completed the "alignment" steps? If the oscillators are far off frequency the radio will not work very well if at all.I tried to set the BFO in the menu by display and the IRF510 (RVF2 + RFV3) current to measure and adjust with a screwdriver, but I still needed help. And I would have to adjust the Raduino on the knob (P2) but I would also need some tips for that. Do you have a more experienced ham there who can help you?Not really.. But today, later he say, a Ham would help me to test a few transmissions from him to me and i should say when receive.. Fabian, we all have or had different 'starting' places. It is not reasonable to assert that a kit is not for a beginner! At one time if hams did not make their own radios from scratch (not even a kit) they had no radio at all. The uBitx is not really so much of a kit. Building your own gear from scratch or from a kit is 'learning by total immersion'. Sometimes that method can seem frustrating but eventually we all get where we want to be. Just relax and enjoy the 'journey'. After you have finally sorted out the trouble and corrected it you will find it more satisfying than that Kenwood or Yaesu:) Those have their own rewards and can be an appropriate starting place for somebody else.I started out building radios from a pile of old junk harvested from dead radios. At times it was discouraging but in the end it doesn't seem to have hurt me:)Sorry i unterstand and this is real you say. I didn't mean to say it was bad. I even collect a lot of bulky waste myself, such as radios and other electrical appliances and then solder them together and really like to make things. And doesn't want to be a "plug socket - amateur". So I have something to apologize for with the wrong wording. And now about your English. Your English is very usable for a non native English user. I know only a few German words and not very much about the grammar or syntax. If I was suddenly transplanted to Germany I would experience 'total immersion' and would soon be speaking, reading, and writing German. It would sometimes seem frustrating but eventually I would fit right in :) For now your English is substantially better than my German.73,Bill KU8Hok Thank you! This was the text i have wrote for you.. Now are the question are: -what i can do for better receive? -what i should adjust at the points on the board: RVF2 + RVF3 and the other varable resistor near there? -what software you think is the best for good receive, i would think of installing now the cec1.08? ok this are my question at the momment.. thank you for helping me ! hope for answer, thanks best regards Fabian, DO6FAB |
David Posthuma
MadRadioModder
Allard PE1NWL
sdr freak