Re: Display Protection Boards
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On Jun 9, 2019, at 8:25 PM, Vince Loschiavo < vince320@...> wrote: Hi Steve, Yes..I've had to put in an order for parts..i should have enough..I'll let u know Vince On Sun, Jun 9, 2019 at 6:32 PM STEVE via Groups.Io <behlmer= [email protected]> wrote: Hi Vince. Thanks for all you are doing with this. I have the board from you. Would it be possible to order the parts of the kit from you? ? KE7GO? Steve Behlmer On Jun 9, 2019, at 9:44 AM, Vince Loschiavo < vince320@...> wrote: Some of you have already received the boards, and a couple of assembled ones.
the kits are being kitted and should be mailed shortly.
Please let me know when your stuff arrives..
Thanks
Vince
n2aie
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Re: Display Protection Boards
Hi Steve, Yes..I've had to put in an order for parts..i should have enough..I'll let u know Vince
On Sun, Jun 9, 2019 at 6:32 PM STEVE via Groups.Io <behlmer= [email protected]> wrote: Hi Vince. Thanks for all you are doing with this. I have the board from you. Would it be possible to order the parts of the kit from you? ? KE7GO? Steve Behlmer On Jun 9, 2019, at 9:44 AM, Vince Loschiavo < vince320@...> wrote: Some of you have already received the boards, and a couple of assembled ones.
the kits are being kitted and should be mailed shortly.
Please let me know when your stuff arrives..
Thanks
Vince
n2aie
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Re: Display Protection Boards
Hi Vince. Thanks for all you are doing with this. I have the board from you. Would it be possible to order the parts of the kit from you? ? KE7GO? Steve Behlmer
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On Jun 9, 2019, at 9:44 AM, Vince Loschiavo < vince320@...> wrote: Some of you have already received the boards, and a couple of assembled ones.
the kits are being kitted and should be mailed shortly.
Please let me know when your stuff arrives..
Thanks
Vince
n2aie
|
Display Protection Boards
Some of you have already received the boards, and a couple of assembled ones.
the kits are being kitted and should be mailed shortly.
Please let me know when your stuff arrives..
Thanks
Vince
n2aie
|
All:
I've been working with a small (2.4") TFT touch screen display for a CW messaging system. The display has 14 pins on the right edge of the display, with their ID's silk screened on the back side of the display. During the course of building the circuit, I probably flipped the display front-to-back...oh, I don't know...about a bazillion times. Al (AC8GY) had a great , but simple, time-saving idea, as shown here:
He cut some scrap from an Avery label sheet and just stuck it on the display. Well worth the effort for almost any device that has silk screening on the back but you need to work with it from the front. If need be, it's easy to peel the label off when you're done.
Jack, W8TEE
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Re: JackAl & uBITX for sale
Sorry my email was intended for Mike who had an assembled one for sale.? I didn t know how to reply to him only. ? Jerry ?
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From: [email protected] [mailto:[email protected]] On Behalf Of jjpurdum via Groups.Io
Sent: Friday, June 7, 2019 3:45 PM
To: [email protected]
Subject: Re: [JackAl] JackAl & uBITX for sale? The board is sold by QRP Guys and all of the DOC files are posted in the Files section of the JackAl users' group:  ?
| | JackAl groups.io GroupThis Forum is for exchanging ideas, suggestions, assembly instructions, debugging, and enhancements for the Jack... |
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On Friday, June 7, 2019, 3:42:43 PM EDT, jsternmd <jsternmd@...> wrote: I am interested in v5, whats your email so we can make arrangement? ? Jerry NY2KW ? From: [email protected] [mailto:[email protected]] On Behalf Of Mike Short
Sent: Thursday, June 6, 2019 1:00 PM
To: [email protected]
Subject: [JackAl] JackAl & uBITX for sale ? I have a V4 and a V5 for sale. Both have the JackAl board. I also have 5” and 7” displays and the protection boards coming. One JackAl is assembled and the other has all the parts ? The V4 board has the mini-coax and connectors installed.? The JackAls are $110 each and the uBITX are $130 each. Displays $35 each. Can make a package deal. All above are new.?
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Re: JackAl & uBITX for sale
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I am interested in v5, whats your email so we can make arrangement? ? Jerry NY2KW ? From: [email protected] [mailto:[email protected]] On Behalf Of Mike Short
Sent: Thursday, June 6, 2019 1:00 PM
To: [email protected]
Subject: [JackAl] JackAl & uBITX for sale ? I have a V4 and a V5 for sale. Both have the JackAl board. I also have 5” and 7” displays and the protection boards coming. One JackAl is assembled and the other has all the parts ? The V4 board has the mini-coax and connectors installed.? The JackAls are $110 each and the uBITX are $130 each. Displays $35 each. Can make a package deal. All above are new.?
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Re: JackAl & uBITX for sale
The board is sold by QRP Guys and all of the DOC files are posted in the Files section of the JackAl users' group:
| | JackAl groups.io GroupThis Forum is for exchanging ideas, suggestions, assembly instructions, debugging, and enhancements for the Jack... |
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Jack, W8TEE
On Friday, June 7, 2019, 3:42:43 PM EDT, jsternmd <jsternmd@...> wrote:
I am interested in v5, whats your email so we can make arrangement? ? Jerry NY2KW ?
From: [email protected] [mailto:[email protected]] On Behalf Of Mike Short
Sent: Thursday, June 6, 2019 1:00 PM
To: [email protected]
Subject: [JackAl] JackAl & uBITX for sale ? I have a V4 and a V5 for sale. Both have the JackAl board. I also have 5” and 7” displays and the protection boards coming. One JackAl is assembled and the other has all the parts ? The V4 board has the mini-coax and connectors installed.? The JackAls are $110 each and the uBITX are $130 each. Displays $35 each. Can make a package deal. All above are new.?
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Re: JackAl & uBITX for sale
I am interested in v5, whats your email so we can make arrangement? ? Jerry NY2KW ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Mike Short
Sent: Thursday, June 6, 2019 1:00 PM
To: [email protected]
Subject: [JackAl] JackAl & uBITX for sale ? I have a V4 and a V5 for sale. Both have the JackAl board. I also have 5” and 7” displays and the protection boards coming. One JackAl is assembled and the other has all the parts ? The V4 board has the mini-coax and connectors installed.? The JackAls are $110 each and the uBITX are $130 each. Displays $35 each. Can make a package deal. All above are new.?
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Re: JackAl & uBITX for sale
Neither. Is a touch screen display and board that adds a bunch of features to the ?BITX. Here's a copy of ours:
Its features include:
5” or 7” TFT Touch Screen 800x480 TFT Color Display
Dual VFO
RIT
S Meter
Real Time Clock (add optional battery)
50 CW Preset Messages, selectable at runtime
Touch Screen Band Selection
Touch Screen Buttons for function selection and control
Dual Encoders: Frequency Tuning, ALS Tuning, Program Input
Frequency Tuning: Standard and ALS Tuning
ALS Tuning: Special tuning using the second encoder. If the frequency increment is set to 1KHz,
??? ALS Tuning sets the second encoder to one-tenth the increment of the primary tuning
??? rate. This allows for rapid tuning to an approximate frequency using the main encoder
??? and then using ALS Tuning with the second encoder to fine tune the signal.
Filter Selection:
?? ?CW presets (3dB bandwidth): 150 Hz, 300 Hz, 400 Hz, 600 Hz
?? ?SSB presets (3dB bandwidth): 1500 Hz, 1800 Hz , 2200 Hz, 3000 Hz
EEprom storage of user preferences and CW code presets
3 external hardware buttons for CW code messages (e.g., contest exchanges)
Based on Teensy 3.6 Microcontroller with Audio Shield
Hardware AGC using IF take-off
Mic Compressor with adjustable threshold
Mic 8-band equalization
Receive Audio Filter
48 dB/octave (8 pole equivalent DSP filters)
2 Variable bandwidth filters – user defined knee frequencies with Rotary Encoder control
Audio AGC with adjustable threshold
Variable Notch filter, encoder adjustable, use specified Q
CW code to Text converter
Code Practice Oscillator Mode
About a dozen I/O pins to play with plus 800K of free flash memory, 200K of free SRAM, all clocked at 180MHz
Jack, W8TEE
On Friday, June 7, 2019, 1:12:43 PM EDT, tmize57@... <tmize57@...> wrote:
For those of us that are not up on versions and models can you provide pictures and a description?? Is this the Antenna Analyzer or QRP transceiver?
Thanks
Tim N7XAU
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Re: JackAl & uBITX for sale
For those of us that are not up on versions and models can you provide pictures and a description?? Is this the Antenna Analyzer or QRP transceiver?
Thanks
Tim N7XAU
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I have a V4 and a V5 for sale. Both have the JackAl board. I also have 5” and 7” displays and the protection boards coming. One JackAl is assembled and the other has all the parts ?
The V4 board has the mini-coax and connectors installed.?
?
The JackAls are $110 each and the uBITX are $130 each. Displays $35 each. Can make a package deal. All above are new.?
?
Mike
AI4NS
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Re: Display Protection Boards
Received a dozen boards..
will ship next week.
n2aie
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Re: “Stacked” mounting of JackAl board?
Not sure. ?Never used one of those cases so I really don't have any data. ?I believe he provides for a back panel fan and that should take care of it. ?As to RF, there shouldn't be but again each setup is different. ?That's about all I can tell you and you'll just have to try it and see.
Jim
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On Jun 1, 2019, at 10:44 AM, Mark Hatch < mark2382@...> wrote: Hi
I am considering using one of Sunil’s cases. ?This will mean I will need to partially overlap the ubitx board. ?Any issues with rf or heat?
73
Mark
AJ6CU
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“Stacked” mounting of JackAl board?
Hi
I am considering using one of Sunil’s cases. ?This will mean I will need to partially overlap the ubitx board. ?Any issues with rf or heat?
73
Mark
AJ6CU
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Mark, Private email sent.
Jim, W0EB
------ Original Message ------
Sent: 5/31/2019 2:00:19 PM
Subject: [JackAl] Trade 7" for a 5"?
Anybody in NA interested in swapping their 5" screen for a 7"? I want to use a standard case from?amateurradiokits.in and they do not have a 7" version.
Mark
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Re: Fw: [JackAl] W8TEE Mag Loop Testing
I should have provided more detail.? SML defined as "about 1m diameter".
Yes, I am looking for the "Inductor effective resistance" at resonance. Use a small value air capacitor in series which will have a very high (3000-4000) "Q" so it can be ignored, then short the capacitor and read the inductance and RL which is the "effective resistance at resonance". You want that number to be as low as possible for the highest "Q". There are also trade offs between all the possibilities.....important point. The sharper the "Q" the faster and better your Loop Auto Tuner needs to be.
What effects that RL are:
1) solder joints (lead vs silver vs spot welding),
2) the shape of the conductor,
3) skin effect (flat coil bands are bad because the current density will be at the far outer edges of the flat strap [electrons at
? ? RF try to avoid each other],
4) the conductor material,
5) conductor diameter (many experiments including 8" corrugated plastic drain pipe with CU tape ;o),
6) coax coupling (Milt Cram ,W8NUE, did an excellent writeup on this for QEX recently......check it out,
7 etc.?
Mechanically sandwiched plates on a capacitor shaft increase resistance, welded is much better. A DC ohm measurement is a "guide" but does not mean beans at RF. Butterfly capacitors reduce the number of resistive joints. Vacuum Variables are "best" but expensive.
Due to the high "Q" and resultant tuning sensitivity, the whole assembly needs to be relatively sturdy to prevent movement in the wind. Ask George Heron, W2APB, about that.
RL is more important at the lower frequencies .....far more important on 80m and 160m. Based on our (AQRP) testing, "One" SML for 160 through 10m is nuts......80m through 10m is difficult.......40m through 20m is very doable. Separate 160m through 80m, 40m through 20m, and 20m through 10m SMLs are bulky and cumbersome.
Waiting for new ideas.
73 Kees K5BCQ
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Anybody in NA interested in swapping their 5" screen for a 7"? I want to use a standard case from?amateurradiokits.in and they do not have a 7" version.
Mark
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Fw: [JackAl] W8TEE Mag Loop Testing
----- Forwarded Message -----
From: Albert Peter <albertfpeter@...> To: Jack Purdum <jjpurdum@...> Sent: Thursday, May 30, 2019, 6:55:54 PM EDT Subject: RE: [JackAl] W8TEE Mag Loop Testing
I believe he is asking for the inductive reactance at resonance so he can size the capacitors.? If that is the case, the following should help: - Range of capacitance required for 1M dia multiple loop?
- Approximate inductance at 350KHz – 5.8 microH? (measured)
- Calculated inductance @ 7 MHz -? 5.4microH
- Approximate efficiencies:? rough calculation approximate only – very difficult to measure.
? Best capacitor type is a split Stator.? Hook up the stators in series to get ? the capacitance, but 2X the max voltage.? Some of the stator vanes may have to be removed or altered to get the range needed to cover both bands.? For one band only, a single stator/ rotor arrangement will work just fine.? See attached pic of cap used.? If butterfly style can be found this is ideal, but difficult to come by.? At the Dayton HamVention I saw none of the butterfly style, but numerous examples of split stator types. Regards, Al AC8GY ? ?
----- Forwarded Message ----- From: Kees T <windy10605@...> Sent: Thursday, May 30, 2019, 2:50:12 PM EDT Subject: Re: [JackAl] W8TEE Mag Loop Testing What is RL on 40m and 20m for the loop ?
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jjpurdum
@Timbob5758
