Date   
Re: sotabeams filter installation

Mark GØNMY
 

There is a times 4 input gain setting on the sotabeams circuit. Its off by default, so there may be more gain to be had.

Mine is in an external housing so I can use it with my different rigs.

I also have the Vari unit which Ive not used yet,  I have just aquired a couple of oled displays so plan to utilise a display.

for it.


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G0NMY's Blog

May the Morse be with you!

Re: new nextion 5/7 hmi bug

Mark Hatch
 

Hi

Away from my system for a few days. Can try to compile on my system when I get back next week.  Perhaps someone else can check this out in the meantime?

mark

Re: bitx 40 pcb

Dave Dixon
 

hi curt,
           thanks for that i have sent Dave an email so far no reply...Regards Dave G0AYD..   


On Sat, 18 Jan 2020 at 14:49, Curt via Groups.Io <wb8yyy=yahoo.com@groups.io> wrote:
See if g0ayd has his email at qrz.com

Re: SVHFS 2020 Conference Announcement & Call For Papers/Presentations

Robert D. Bowers
 

I find it interesting that a quick search for that specific Ramada Inn has a completely different phone number.  The advertised number is 770-744-3913.  Something about this post made me curious.  (I also found a whole lot of negative reviews.)

I'd suggest people do research before giving information or money.

Bob


On 1/18/20 11:19 AM, Robin Midgett wrote:

The 2020 Southeastern VHF Society Conference will be held in Gainesville, Georgia on April 24-25, 2020. Gainesville, GA is approximately 60 miles north of Atlanta in EM84ch. It is about 1.5 miles from I-985. 

The Ramada Inn, of Gainesville, Georgia is the conference hotel for the 2020 SVHFS Conference. The hotel is now taking reservations directly. To book your room, please see the conference page or follow this information:

The conference rate is $80 per night. To secure this rate, call the hotel directly at 770-531-0907. Do not call Ramada central reservations or book through the Ramada Website.

 

Ramada Inn

400 E.E. Butler Parkway

Gainesville, GA 30501

770-531-0907

N34.297420 / W083.8222475 – Google Maps link

 

Call for papers:

Papers and presentations are solicited on both the technical and operational aspects of VHF, UHF and Microwave weak signal amateur radio. The deadline for the submission of papers and presentations for this year’s conference is March 7, 2020. Please indicate when you submit your paper or presentation if you plan to attend the conference and present your paper in person or if you are submitting solely for publication.  Papers and presentations are being handled by Charles Osborne, K4CSO, and they should be sent to Charles via K4CSO@.... Charles can be contacted at the same email address if you have any questions.

 

Please see http://svhfs.org/wp/conference/call-for-papers/ for complete details concerning papers and presentations.

Some suggested areas of interest are:

Transmitters

Receivers

Transverters

RF Power Amplifiers

RF Low Noise Pre Amplifiers

Antennas

Construction Projects

Test Equipment And Station Accessories

Station Design And Construction

Contesting

Roving

DXpeditions

EME

Propagation (Sporadic E, Meteor Scatter, Troposphere Ducting, etc.)

Digital Modes (WSJT, etc.)

Digital Signal Processing (DSP)

Software Defined Radio (SDR)

Amateur Satellites

Amateur Television

Unexpected project challenges, things that didn't go right at first; this information helps others avoid the issues.


Thanks,
Robin Midgett K4IDC

Re: #V6 query audio level input to use for test tone alignments #v6

Andy_501
 

OK thanks Arv

On 2020-01-18 9:46 a.m., Arv Evans wrote:
Andy

The electret microphone that comes with uBITX puts our approximately 45 millivolts. 
Microphone input includes a pull-up resistor for powering the mike, so you may want
a pull-down resistor that equals the current draw of the electret microphone.

Arv
_._


On Sat, Jan 18, 2020 at 5:15 AM Andy_501 <andrew.webb.501.ve4per@...> wrote:
Anybody have a audio level to use at the mic input for a two tone test
tone for SSB power o/p and  alignment checks??





Re: Rugged Case Options? #ubitx

 

You know, it's not to hard to cut these cases to size if you don't want it that long. I have a friend with a nice metal shop that lets me cut cases on his chop saw or band saw, then I just clean up the edges with a flat file. In any case, I would mount the final MosFets to the back panel with some insulating pads and some silicone grease.

Joel
N6ALT

Re: Rugged Case Options? #ubitx

Rob French (KC4UPR)
 

I'm guessing that your replying to my post of over two years ago:
    https://groups.io/g/BITX20/message/36989
about this $10 case:
    https://www.jameco.com/z/CMC11949-R-Case-Metal-7-3-L-x-6-3-W-x-2-75-H-50-Cs_208929.html
You guessed it, that's the one... Sorry, I forgot to quote the original text, nice working hunting down the old post...

Vents are not a bad thing, the IRF510's do need to get cooling somehow.
If you plan to be operating from a mountaintop in a hailstorm after lugging
your uBItx in a backpack otherwise full of rocks, perhaps you need a thick extruded
aluminum case with the IRF510's somehow bolted to that case to sink heat.
Most of us can get by with wrapping a relatively fragile uBitx in a spare stocking hat,
and then stuffing it along with antenna and battery and tuner and mike and key
and a bottle of brandy into a good stiff box of some sort.
Ha!  Nope, no mountain tops in a hailstorm.  More likely, car camping, set it out on the picnic table, maybe take it on some hikes to do SOTA.  Mainly just want to minimize chance for damage, while also not breaking my bank... I liked this case partly because it's so much cheaper than the extruded ones... At some point, I need to stop throwing money at my uBITX, even if it is all fun!

Here's how ND6T did the heatsink on his Bitx40, this will also work on the uBitx:
    http://bitxhacks.blogspot.com/2017/01/nd6ts-approach-to-heat-sinking-irf-510.html
Alternately, could remove the IRF510's, bend the leads up 90 degrees from the front face,
and then solder them to the bottom of the board and bolt them to the bottom of the case.
They must be insulated from the case.  Keep the leads about as short as they are now.
Thanks for the point-out.  I've already looked at a lot of his stuff, I need to go dig into his website some more.

Regards,
-Rob KC4UPR

SVHFS 2020 Conference Announcement & Call For Papers/Presentations

Robin Midgett
 

The 2020 Southeastern VHF Society Conference will be held in Gainesville, Georgia on April 24-25, 2020. Gainesville, GA is approximately 60 miles north of Atlanta in EM84ch. It is about 1.5 miles from I-985. 

The Ramada Inn, of Gainesville, Georgia is the conference hotel for the 2020 SVHFS Conference. The hotel is now taking reservations directly. To book your room, please see the conference page or follow this information:

The conference rate is $80 per night. To secure this rate, call the hotel directly at 770-531-0907. Do not call Ramada central reservations or book through the Ramada Website.

 

Ramada Inn

400 E.E. Butler Parkway

Gainesville, GA 30501

770-531-0907

N34.297420 / W083.8222475 – Google Maps link

 

Call for papers:

Papers and presentations are solicited on both the technical and operational aspects of VHF, UHF and Microwave weak signal amateur radio. The deadline for the submission of papers and presentations for this year’s conference is March 7, 2020. Please indicate when you submit your paper or presentation if you plan to attend the conference and present your paper in person or if you are submitting solely for publication.  Papers and presentations are being handled by Charles Osborne, K4CSO, and they should be sent to Charles via K4CSO@.... Charles can be contacted at the same email address if you have any questions.

 

Please see http://svhfs.org/wp/conference/call-for-papers/ for complete details concerning papers and presentations.

Some suggested areas of interest are:

Transmitters

Receivers

Transverters

RF Power Amplifiers

RF Low Noise Pre Amplifiers

Antennas

Construction Projects

Test Equipment And Station Accessories

Station Design And Construction

Contesting

Roving

DXpeditions

EME

Propagation (Sporadic E, Meteor Scatter, Troposphere Ducting, etc.)

Digital Modes (WSJT, etc.)

Digital Signal Processing (DSP)

Software Defined Radio (SDR)

Amateur Satellites

Amateur Television

Unexpected project challenges, things that didn't go right at first; this information helps others avoid the issues.


Thanks,
Robin Midgett K4IDC

Re: #V6 query audio level input to use for test tone alignments #v6

Arv Evans
 

Andy

The electret microphone that comes with uBITX puts our approximately 45 millivolts. 
Microphone input includes a pull-up resistor for powering the mike, so you may want
a pull-down resistor that equals the current draw of the electret microphone.

Arv
_._


On Sat, Jan 18, 2020 at 5:15 AM Andy_501 <andrew.webb.501.ve4per@...> wrote:
Anybody have a audio level to use at the mic input for a two tone test
tone for SSB power o/p and  alignment checks??





new nextion 5/7 hmi bug

Richard E Neese
 

When trying to compile the new nextion hmi posted Dec 1st the file will not compile on the nextion 7 basic mode it spits out a memory error and stops . This is on the new 0.59 version of the nextion editor

Re: bitx 40 pcb

Curt
 

See if g0ayd has his email at qrz.com

#V6 query audio level input to use for test tone alignments #v6

Andy_501
 

Anybody have a audio level to use at the mic input for a two tone test tone for SSB power o/p and  alignment checks??

Re: bitx 40 pcb

dave
 

hi my friend i would like to aquire the pcb but the email address is incomplete down to LO i suspect
 got the up to@ then npthing bit frustrating

Re: No XMIT, No Recv #v6

Reed N
 

Solid steps forward! I already had the non-defaulting values for the cals, but the submenuing idea makes a lot of sense. I'll get that added to my master soon :)


Reed

New case from India

Wayne Leake
 

 Well, last week, I ordered a nice case to house one of my BITX40's.
 It arrived yesterday or today, really fast service from India.
  Well packed and as per shown on the website. Amateuradiokits.in. 
Think that's the URL.
 I am very likely to order other items in the future.
 He has great cases for the uBITX series also.

 Wayne WA2YNE

Re: BFO update

Andy_501
 

What does the setup do as far as keyers are concerned? I made up two TRS jacks one ties in via 10 kohm input to keyer and 2nd the 2.2 kohm input line. These appear to be two iambic inputs but the cable that is set for the 2.2 kohm input also serves as direct PTT on the mic input jack. The set up options show two iambic choices and standard straight key. Does straight key setting work from both mic jack and/or key morse jack J4 ?
73 Andy

via my shoephone

Sent from BlueMail

On Jan 17, 2020, at 18:30, "John Schlosser via Groups.Io" <yahoo.com@groups.io target=_blank>jschlosvm=yahoo.com@groups.io> wrote:
Thanks for the reminder Curt, thought I had checked that but apparently not, plugging in the straight key did the trick and I found the wiring diagram for the iambic key. uBitx is working good now in all modes, all that's left is to try it out on all the bands.
73
John W5GFI

Re: BFO update

John Schlosser
 

Thanks for the reminder Curt, thought I had checked that but apparently not, plugging in the straight key did the trick and I found the wiring diagram for the iambic key. uBitx is working good now in all modes, all that's left is to try it out on all the bands.
73
John W5GFI

Re: #ubitx V6 #ubitx

Wayne Leake
 

 The ones I purchased came with nuts and washers.
 If they don't look for another vendor.
Always a good idea to have spares on hand.

 Wayne WA2YNE

On Fri, Jan 17, 2020, 12:45 PM Mick <Mgsebele@...> wrote:
And look they come with the nuts for mounting👍😀

73
Mick VA3EPM

Re: #ubitx V6 #ubitx

Mick
 

And look they come with the nuts for mounting👍😀

73
Mick VA3EPM

Re: Need to Calibrate the V6 #v6

Reed N
 

Hi Morris,

When it says "tune" it actually means tuning the BFO, not the tuner. You'll want to push the tuner knob in and then hold it in for a LONG time. This should pop up the setup menu, at which point you can select the BFO tuning menu. Once there, you'll want to turn the tuning knob until the tall green blob is centered between the red as best you can. The image you captured looks like it's off to the left, which means you have more low frequencies than you should.


Reed