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S meter
#ubitx
#ubitx-help
#arduino
??? ??????
Hello everyone i want to ask about the s meter i do it like the diagram Which is includes lm368 when i i programming by ubuub manager i i g the max value same the minimum value i try alot and nothing changes accept the value and also it come same so do hach something that can help me or ideas or external s meter ??
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Re: RF power chain mods and improvements..
¿ªÔÆÌåÓýIts better to take care of this before it gets to the RF amplification section of the uBITx¡ ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Gordon Gibby
Sent: Saturday, June 2, 2018 4:35 AM To: [email protected] Subject: Re: [BITX20] RF power chain mods and improvements.. ? A lot of people use a T- type tuner to connect to their feedline; these might provide a bit of filtering of the lower undesired frequency.
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Re: Transmitter Mods
¿ªÔÆÌåÓýProbably 20 was dying when you were
listening. See what happens over time. There is nothing in the mod
that can affect audio levels.
On 6/2/2018 6:34 PM, Lee wrote: I installed the inductor and capacitors, thanks Howard.? My output changed across the bands.? A funny thing happened.?? The receive audio on 20 meters dropped way off.?? 40 meters is nice and loud.? I heard someone running a beam and lots of power on 20 and he was clear but at full volume he was about 20% as loud as 40 meter static.? Did 20 meters just go very quiet or did I create a problem?
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Re: Transmitter Mods
I installed the inductor and capacitors, thanks Howard.? My output changed across the bands.? A funny thing happened.?? The receive audio on 20 meters dropped way off.?? 40 meters is nice and loud.? I heard someone running a beam and lots of power on 20 and he was clear but at full volume he was about 20% as loud as 40 meter static.? Did 20 meters just go very quiet or did I create a problem?
-- Lee - N9LO? "I Void Warranties" ? |
Re: Instruction Manual needs revision
#ubitx
I have attached my first pass at the "MBITX TUNEUP" instruction, and welcome your comments.? I have aimed for ease of understanding, particularly for newcomers to our interesting hobby.?
-- Jon Titus, KZ1G Herriman, UT USA |
Re: Variable Power Out
¿ªÔÆÌåÓýPut a pot in between the audio from the computer and the mic input to the radio. Then you can adjust for the desired level. ?Alternatively check to see if you can control the output level, either from the software or the computer¡¯s volume control.Clark Martin KK6ISP
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Re: Nextion Display
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 |
Re: LCD Interface Question: Parallel or I2C?
#bitx20
#bitx40help
#firmware
yes...it frees up 6 i/o lines On Sat, Jun 2, 2018 at 3:04 PM, Allen Merrell via Groups.Io <kn4ud@...> wrote: I2C frees up some pins. I2C only uses 2 pins plus power and ground. This was my reason to go to I2C. --
Paul Mateer, AA9GG Elan Engineering Corp. NAQCC 3123, SKCC 4628 |
Re: LCD Interface Question: Parallel or I2C?
#bitx20
#bitx40help
#firmware
I2C frees up some pins. I2C only uses 2 pins plus power and ground. This was my reason to go to I2C.
73's kn4ud -- Allen ?Merrell |
Re: ?BITX Disable TC (use for CW training)
Yes. The firmware is backwards compatible. - f On Sat, 2 Jun 2018, 19:12 Hans Stoll, <tool4fish@...> wrote: On Sat, Jun? 2, 2018 at 06:41 am, Hans Stoll wrote: |
Re: uBITX physical comm port - newbie question
Tom Francis
¿ªÔÆÌåÓýThanks for the quick reply - I really appreciate it.I do some QRP building and experiment a little, but I've never gotten into the micro controller scene much at all other than reading up on it.? 50 some years of playing radio I'm still something of a Luddite. I will do what you suggest - looks like fun. Thanks again. Best regards, Tom, W1TEF On 6/2/2018 1:55 PM, Ralph Mowery
wrote:
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LCD Interface Question: Parallel or I2C?
#bitx20
#bitx40help
#firmware
As hams have hacked or modified their uBITX transceivers, some have moved to a 4-line LCD controlled via an I2C connection.? The electrical connections with a 2x16 or a 4x20 LCD look the same, so why the need for the I2C interface?? It would seem easier to simply change the display addresses and use the standard interface.? Could someone explain to this newcomer why I2C offers advantages or if some incompatibility exists between the display types.? Thanks.?
-- Jon Titus, KZ1G Herriman, UT USA |
Re: uBITX physical comm port - newbie question
¿ªÔÆÌåÓýThank you very much.? Appreciate it.Best regards, Tom - W1TEF On 6/2/2018 1:47 PM, Ralph Mowery
wrote:
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