Re: Have to adjust master calibration on power up - does not save
Ion,
Hey guys, I am an idiot.? My BFO freq. was way off.? The only way I found out was running Ubitx manager to see the saved setting. There was incorrect data entered at one time or another.? Anyway, I got in some good practice with my small torch removing and installing that Arduino. I have now have it set to 119965 and waiting for band conditions to improve.? I tried listening in on another radio but the distance between the 2 is too short. Thanks for all your help. ?
Bob
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Allard,
in addition the "high side" injection must be used and chosen,
because fin = fLO - Fif; e.g. fin = 3.5 MHz Fif = 12 MHz then fLO
= 15.5 MHz.
The "low side injection" as used in the BITX40 does not work (fin
= 7 MHz, flo = 5 MHz then fif = 12 MHz).
Henning Weddig
DK5LV
Am 13.09.2018 um 00:27 schrieb Allard
PE1NWL:
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As far as the firmware is concerned, for monoband operation you
could use the latest Raduino sketch v1.28.1.
This includes the latest enhancements such as spurious prevention,
CW keyer, capacitive touch keyer, improved calibration, etc.
To modify it for 80m, just change the defines for MIN_FREQ and
MAX_FREQ at lines 36 and 37.
And set Region to 0 at line 47.
73 Allard PE1NWL
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Re: uBITX Firmware CEC Version 1.1 Release
#ubitx
I downloaded V1.1 and XLOADED the 16P version it to my uBITX V3. ?All I have now is a top line of boxes on my standard isssue display and XLOADER will no longer work in order to re-install V1.061. ?Any suggestions?
Tom
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Re: K5BCQ uBITX Relay Switched LPF/BPF board
Hi Kees
at what price for France?
73 QRO Gilles F1BFU / FR
Yes, on the 6x LPF stuff. Hope it's a more restrained than the AGC/Click mini-kit ordering.
I just posted the early LPF order status as "K5BCQ LPF Kit Orders" in the uBITX files section under my call.?
73 Kees K5BCQ
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Re: K5BCQ uBITX Relay Switched LPF/BPF board
Yes, on the 6x LPF stuff. Hope it's a more restrained than the AGC/Click mini-kit ordering.
I just posted the early LPF order status as "K5BCQ LPF Kit Orders" in the uBITX files section under my call.?
73 Kees K5BCQ
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Re: uBITX Firmware CEC Version 1.1 Release
#ubitx
Hi, Ian, ? Thanks for quick answer, Ok we can use code with no mods and just adapt graphical objects or as you say find good HMI files 73¡¯s de Jacques ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Ian Lee
Sent: Thursday, September 13, 2018 6:36 PM
To: [email protected]
Subject: Re: [BITX20] uBITX Firmware CEC Version 1.1 Release #ubitx ? f1apy Your work is all normal.?I only created GUIs for 2.4 "and 2.8". All 3.2 "and above LCD files are for testing. It's just conversion from 2.4",?But you will find the .hmi or .tft files that the great developers have converted. ? 2018? 9? 13? (?) ?? 5:29, f1apy - Jacques <f1apy@...>?? ??: Hello all, about the file ubitx_70_E.hmi, i have a question, when i load it on the gui software the items are all grouped in the top left corner.
Is it normal and wanted, or is there something I'm not doing right? the placement of the various components is left to everyone's choice? Ian, you have made a great job, BRAVO, 73¡¯s de Jacques ¨C F1APY ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Tom, wb6b
Sent: Thursday, September 13, 2018 1:59 AM
To: [email protected]
Subject: Re: [BITX20] uBITX Firmware CEC Version 1.1 Release #ubitx ? This is great. And it looks like the source code is now there.?
I find it easer to upload new firmware from the source rather than the hex files, so I'm still (happily) using the last version that had source code.?
Also, with the source code, I'll be looking to see how Ian has yet again pushed more functionally into such a tight space.
Tom, wb6b
--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
(my blog)
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Hi,
I have posted elsewhere about our use of ~50 ohms and 'tuners' at the transmitter to show the radio said ~50 ohms. Besides the feedline loss, which may or may not be tolerable, modern radios have broadband finals with fixed (not tunable) output filters. Those filters are designed for somewhere around about 50 ohms. If we show them something dramatically different their performance diminishes by some unspecified amount. It's good to show the radio 50 ohms resistive. Do the best we can with the rest of the system :)
If we place the tuner AT the antenna and use it to match whatever the antenna happens to be (maybe 275R -j6 or 2500R -80j) then our radio AND our coax "see" 50 ohms. Maybe a practical limit for SWR variation (at the radio) is 1.5 or 2. I have sometimes operated solid state finals into as much as 3 to 1 SWR without apparent negative consequences. But not very many times:) L-networks do a fabulous job. The unseen consequences may have been some extra nasties radiated.
In the old days we had Pi and Pi-L output networks to tune our tube transmitters. Newbies are probably unfamiliar. Those could match quite a lot of 'crap' beyond the antenna connector on the back. I wonder how often we operated with reduced filtering effectiveness using those - mistuned.
73,
Bill KU8H
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On 09/13/2018 01:16 PM, Warren Allgyer wrote: Lawrence,
Your advice is spot on.
One clarification.... and it can be important. 68 ft for 1.0 dB loss at
28 MHz is absolutely correct....... IF, the antenna is a perfect 1:1
match. At 2:1 VSWR you only get 51 ft per dB and at 3:1 VSWR it drops to
42 feet. That is why it is false economy to use a tuner on the rig end
of a coax fed antenna.
WA8TOD
--
bark less - wag more
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Lawrence,
Your advice is spot on.
One clarification.... and it can be important. 68 ft for 1.0 dB loss at 28 MHz is absolutely correct....... IF, the antenna is a perfect 1:1 match. At 2:1 VSWR you only get 51 ft per dB and at 3:1 VSWR it drops to 42 feet. That is why it is false economy to use a tuner on the rig end of a coax fed antenna.
WA8TOD
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Re: uBITX Firmware CEC Version 1.1 Release
#ubitx
f1apy
Your work is all normal.?I only created GUIs for 2.4 "and 2.8".
All 3.2 "and above LCD files are for testing.
It's just conversion from 2.4",?But you will find the .hmi or .tft files that the great developers have converted.
Ian, KD8CEC 2018? 9? 13? (?) ?? 5:29, f1apy - Jacques < f1apy@...>?? ??:
Hello all, about the file ubitx_70_E.hmi, i have a question, when i load it on the gui software the items are all grouped in the top left corner.
Is it normal and wanted, or is there something I'm not doing right? the placement of the various components is left to everyone's choice? Ian, you have made a great job, BRAVO, 73¡¯s de Jacques ¨C F1APY ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Tom, wb6b
Sent: Thursday, September 13, 2018 1:59 AM
To: [email protected]
Subject: Re: [BITX20] uBITX Firmware CEC Version 1.1 Release #ubitx ? This is great. And it looks like the source code is now there.?
I find it easer to upload new firmware from the source rather than the hex files, so I'm still (happily) using the last version that had source code.?
Also, with the source code, I'll be looking to see how Ian has yet again pushed more functionally into such a tight space.
Tom, wb6b
-- Best 73 KD8CEC / Ph.D ian lee kd8cec@...
(my blog)
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Re: uBITX Firmware CEC Version 1.1 Release
#ubitx
Nick
Implemented but not yet tested.?
If new features are added back, they will not be enabled for this version because the beta period should be longer.
However, you will find the Custom LPF option in ubitx.h.
I will post about that soon. Thank you for your interest.
Ian
Ian,
Thanks you so much, the custom filter section is PERFECT for my LPF boards. and very easy to setup!!!
Please send me an email with your details, I will post you a set of these LPF boards!!!
73 Nick VK4PP
-- Best 73 KD8CEC / Ph.D ian lee kd8cec@...
(my blog)
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Re: uBITX Firmware CEC Version 1.1 Release
#ubitx
Kevin, Bo, Tom I am always thankful for you to test it.
Ian
Thank you very much Ian for all of your hard work on this.
Kevin Rea
K6REA
-- Best 73 KD8CEC / Ph.D ian lee kd8cec@...
(my blog)
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If you put an L-Match tuner on that random wire, you'll have something you can transmit with :-)?
http://miscdotgeek.com/bitx40-l-match-tuner-for-end-fed-antenna/
--
Ryan Flowers - W7RLF
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Coax loss can be low if the antenna shows little swr. Loss increase a lot when you combine the SWR with the loss of the cable. Low loss line like the balanced line make negligible the losses of an antenna with higher SWR. Ok you may reword a little better than I.
Il 12/set/2018 21:47, "Dr. Flywheel" < Dr.Flywheel@...> ha scritto: 100% agreed.
--Ron? ? n7FTZ
On Wed, Sep 12, 2018 at 10:13 AM Lawrence Macionski via Groups.Io <am_fm_radio= yahoo.com@groups.io> wrote: Daniel-
I've been studying and building antenna's for 52 years.. Here's some things I've concluded:
With regard to uBITX (under 300 watts) operation:
#1. The guy that tells you, you need a balun for a dipole, Usually is the guy that is selling them. They can be made for $5 or less. Markup is huge.
#2. You need no better than RG-8X coax... Unless:
?????? A. Your coax run is over 75 feet? and used to 148Mhz. (27ft per dB loss -under 3dB which is 1/2 power) negligible loss.
?????? B. Your coax run is? 150 feet or less? under 30Mhz. (63ft per dB @28.4Mhz- under 3dB or less on lower bands) negligible loss.
?????? C. You are not running over 650 watts (approximate)
#3. There is no "secret sauce" when? buying a manufactured antenna.
?????? A. One manufacture makes antenna's in colors and that is their #1 selling point.
?????? B. Virtually none come assembled, so you have to put them together anyhow and tune them.
?????? C. Markup on materials is 4-10x, so you get a "kit of parts" they put together for you. (and pay for the "secret Sauce"
#4. If you can't afford Antenna books, your local public library will get you any Antenna Book with an Library of Congress number.
????? A. My antenna books stacked on the floor are Knee high.. 20+ years ago I paid $52 for John Krause's Antenna Theory.
????? B. Authors such as Lew McCoy, John Krause, R.L Cibek, Joe Carr, anything sold by ARRL are authoritative. This is a start, there are others.
#5. Regarding coax in #1... Reference QST October 2017 page 72.
#6. Remember? 3dB loss can be measured with instruments but never detected by ear.
#7. An antenna constructed with sound engineering plans will get you on the air.? Having the test equipment/ tuners is optional (OCD frankly)
#8. Watch them bash my sound advice.. Yet some will also agree with me.
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Glen,
Great job looking into this alternative. I'm anxious to see the results.
73 Kees K5BCQ
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Re: VK4PP uBitx LPF BANK add-on Board
Hi Nick;
As far as how it looks. Awesome !. Can I please get two of them. :-)
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I think that you can actually use two? Si5351a on the same I2C bus as the least significant bit of the I2C address can be set by connecting PIN A0 to VDD or GND . This only seems to be an option on the 8 output version of the chip so it would seem like a waste to sacrifice 14 outputs to get two that play nicely together (one on each chip).?
Michael VE3WMB?
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Re: VK4PP uBitx LPF BANK add-on Board
Hello Kees,
How much for the four filter circuit board?
Thank you Ripley KD8UYQ The words are mine but this iPad does what it will with them.
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On Sep 12, 2018, at 9:00 PM, Nick VK4PP < nickpullen@...> wrote: OK, an economy version!
Only 4 filters, re-use the K3 relay.
compatible with KD8CEC firmware 1.1
<VK4PP uBitx LPF v05 _ 4 Filter.PNG>
<KD8CEC Custom filters.PNG>
73 Nick VK4PP
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Re: uBITX Firmware CEC Version 1.1 Release
#ubitx
Hello all, about the file ubitx_70_E.hmi, i have a question, when i load it on the gui software the items are all grouped in the top left corner.
Is it normal and wanted, or is there something I'm not doing right? the placement of the various components is left to everyone's choice? Ian, you have made a great job, BRAVO, 73¡¯s de Jacques ¨C F1APY ? ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Tom, wb6b
Sent: Thursday, September 13, 2018 1:59 AM
To: [email protected]
Subject: Re: [BITX20] uBITX Firmware CEC Version 1.1 Release #ubitx ? This is great. And it looks like the source code is now there.?
I find it easer to upload new firmware from the source rather than the hex files, so I'm still (happily) using the last version that had source code.?
Also, with the source code, I'll be looking to see how Ian has yet again pushed more functionally into such a tight space.
Tom, wb6b
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Re: VK4PP uBitx LPF BANK add-on Board
Hi, would it be compatible with the stock firmware too (I have uBitx ver 3)?
Il 13/set/2018 03:00, "Nick VK4PP" < nickpullen@...> ha scritto: OK, an economy version!
Only 4 filters, re-use the K3 relay.
compatible with KD8CEC firmware 1.1
73 Nick VK4PP
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Ripley