Date   
Re: uBitx 1st contacts #ubitx #nextion

iz oos
 

The dipole is a good antenna, you will likely be able to get a near 1:1 swr with your analyzer. In any case the difference would be almost negligible. In a couple of years, as propagation improves you will be able to work several 13k miles far away stations given the same setup, if the dipole is reasonable high in the clear.


Il 16/giu/2019 03:29, "Curt via Groups.Io" <wb8yyy=yahoo.com@groups.io> ha scritto:
Ron

fantastic pure ham radio to be using a rig that you assembled and are improving. 

on the dipole - see which end of the band has the lowest SWR.  if it is the high end - it is a little too short, and vice versa.  it is better to adjust the antenna if possible, although if your coax length is rather short and it is good coax - the tuner can amend it some.  always look at SWR across a span of frequencies to get the full picture.  1.9 isn't that dreadful at HF, but tune antennas whenever you can by changing its length. 

enjoy your radiations!  propagation tends to be better in fall and winter. 

Curt

Re: uBitx 1st contacts #ubitx #nextion

Ashhar Farhan
 

It is a better idea to trim the dipole to low swr rather than tune it up. Also cheaper.


On Sun 16 Jun, 2019, 8:18 PM iz oos, <and2oosiz2@...> wrote:

The dipole is a good antenna, you will likely be able to get a near 1:1 swr with your analyzer. In any case the difference would be almost negligible. In a couple of years, as propagation improves you will be able to work several 13k miles far away stations given the same setup, if the dipole is reasonable high in the clear.


Il 16/giu/2019 03:29, "Curt via Groups.Io" <wb8yyy=yahoo.com@groups.io> ha scritto:
Ron

fantastic pure ham radio to be using a rig that you assembled and are improving. 

on the dipole - see which end of the band has the lowest SWR.  if it is the high end - it is a little too short, and vice versa.  it is better to adjust the antenna if possible, although if your coax length is rather short and it is good coax - the tuner can amend it some.  always look at SWR across a span of frequencies to get the full picture.  1.9 isn't that dreadful at HF, but tune antennas whenever you can by changing its length. 

enjoy your radiations!  propagation tends to be better in fall and winter. 

Curt

BITX 40PARTS

mtngentleman@...
 

I am off to a poor start with my Bitx 40.

Several parts missing and have discovered they sent the wrong Raduino (for the ubix?}

I have sent complaint but no response.

Is this typical ?  Maybe I should quit now!

AA7MH

Re: BITX 40PARTS

Mike Short
 

The Raduino is the same. Connections are different. You can flash the software for the bitx40. Use Allards software. Better than stock.

On Sun, Jun 16, 2019 at 12:14 PM <mtngentleman@...> wrote:
I am off to a poor start with my Bitx 40.

Several parts missing and have discovered they sent the wrong Raduino (for the ubix?}

I have sent complaint but no response.

Is this typical ?  Maybe I should quit now!

AA7MH

Re: BITX 40PARTS

Gordon Gibby
 

Perhaps you could post a photo to show what is missing and what you think is wrong?


On Jun 16, 2019, at 13:16, Mike Short <ai4ns.mike.spam@...> wrote:

The Raduino is the same. Connections are different. You can flash the software for the bitx40. Use Allards software. Better than stock.

On Sun, Jun 16, 2019 at 12:14 PM <mtngentleman@...> wrote:
I am off to a poor start with my Bitx 40.

Several parts missing and have discovered they sent the wrong Raduino (for the ubix?}

I have sent complaint but no response.

Is this typical ?  Maybe I should quit now!

AA7MH

uBITX v3 for Sale

kg0ew
 

uBITX v3. Unbuilt, in original plastic box.  I started to wire this up, and got distracted by other projects. Has the TDA 2822 audio chip. $95 shipped USPS Priority Mail, U.S. ONLY.  Paypal or check (will hold radio until check clears). Happy to send photos. Contact me at: kg0ew <at> arrl.net.
73,David KG0EW

Re: BITX 40PARTS

Vaughn
 

Don't give up. this is a learning rout. Not sure hwere you got your BITx40 from, but mine from HFSignals.com, was just great. OK the pots were a little cheep and only had 4mm shafts, not the normal 5/6mm ones, but it worked just fine. Did do a few mods and I suggest you too look at these as they do help with the working of the set. these mods can be found here, http://bitxhacks.blogspot.com/. 

Not all are needed but you can choose from these and try what you like. I did put in hte 10 ten pot and a few others.

If you need help there are plenty here always willing to help, I found they do help a great deal and have a lot of build experience, Thanks guys.

Hope you keep going and get it working 

73s Vaughn

Re: µBITX V5 build complete (for now)

Dexter N Muir
 

Shooda thorta thet. With name Dexter, and dextral like most (and fairly dexterous), what else but Sinistral? :) a dextraneous thought there ...
73... ZL2DEX

Re: uBITX v3 for Sale

RICHARD
 

I will offer $85.00 shipped and send paypal today

K6kwq

 

Sent from Mail for Windows 10

 


From: BITX20@groups.io <BITX20@groups.io> on behalf of kg0ew <kg0ew@...>
Sent: Sunday, June 16, 2019 11:04:36 AM
To: BITX20@groups.io
Subject: [BITX20] uBITX v3 for Sale
 
uBITX v3. Unbuilt, in original plastic box.  I started to wire this up, and got distracted by other projects. Has the TDA 2822 audio chip. $95 shipped USPS Priority Mail, U.S. ONLY.  Paypal or check (will hold radio until check clears). Happy to send photos. Contact me at: kg0ew <at> arrl.net.
73,David KG0EW

UBITX Low Rx on all but 40M

Bob Fischer, Fischer Technical Services
 

My uBITX works great on 40M.  However, receive sensitivity is very low on all other bands.  20M & 80M S9+40 signals on my Icom 706 can barely be heard.  My first thought was the high pass filter might actually be tuned to 40M.  Jumped it out and that did not help.  Then thought there might be some kind of crazy problem with K1 or K3 that I did not understand.  Replacing both of them did not help either.  Loading KD8CEC software did not cure the problem.  I saw that an Op in Chile had also posted this or a very similar problem but I could not find any suggestions offered.  Has anyone else seen - and hopefully solved - this problem?   Any suggestions will be appreciated.   WB8BEL

Bought UbitX at Winterfest 2019?

Stephen Johnson <stephenpjohnsonsr@...>
 

If you bought my uBitx, you may have noticed a part is missing. I accidentally left it out of the box. Please contact me, identify the missing part, and I’ll be glad to ship it to you. Sorry!
--
Stephen P. Johnson, D.Sc.
Artistic Director
Bluegrass Barn Concert Series
Frying Pan Farm Park
Herndon, VA 20171
(703) 887-3145 (cell)

Re: Restock

William R Maxwell
 

There is so much activity on this group that it is hard to keep up with all the activity. Are these AGC boards available only as pre-assembled boards David or do you also offer kits?  I vaguely recall you were entertaining thoughts of kits on request?

Bill VK7MX  

Re: pop click pop on tuning BITX40

John Cardoso
 

Allard, Is this really true? So it is! I installed your version 1.28.1 and it is all like music to my ears. All the clicks, crackles and pops are a thing of the past. All pops gone. Totally. Only the beautiful band background noise. Congrats, you solved my problem that was starting to get to me.
I am grateful for your help. Now the usual question: What was it that was solved in software?
Cheers guys.

Virus-free. www.avast.com


On Sat, Jun 15, 2019 at 8:08 PM Brian <vk4bap@...> wrote:
Hi John,
I agree with Allard that his software will cause less tuning clicks that Farhan's original software but you might want to first do the hardware changes. Easy to hear the improvement if it is loud.
It looks like you only have one big electrolytic on the supply to the Raduino. Like others I found two with a low value resistor between them (10 or 22 ohms) was needed to make any real difference. You might also want to separate the wires in the bundle to the tag strip but the filter in the supply line seems to be the most important. The BITX is sensitive to tuning clicks because most of its rx gain is in the AF end. I was surprised how the clicks were difficult to control.
73 Brian.

Re: UBITX Low Rx on all but 40M

Curt
 

Possibly raduino isn't setting the proper filter. Try a jumper around the filter.

Re: BITX 40PARTS

Curt
 

Hfsignals is a small business, not full time, he patient. Do discern what is really missing.

Re: Restock

 

I will sell them in kits at request for the listed price, be warned they are not for the faint of heart and it is strongly recommended you have a hot air reflow as the pads are not hand solder friendly. You can hand solder them but it can be tough unless you have done this before.
--
David

 N8DAH
Kit-Projects.com

Shop is open!

uBITX TX wattage

atc_jeff@...
 

Why is the Transmit wattage lower for the current version, especially at higher frequencies?  when I look at the specs for Ver4 versus the current specs,  It appears to be only 2 watts at 10 meters today yet 5 meters at ten watts vers 4 and 10 all lower bands vers 4.  Today's specs don't reach these levels.

Re: BITX 40PARTS

Sudanthiram N
 

Dear all,
The HF SIGNAL, MOTIVE IS EARNING MONEY ONLY . AFTER SALES NO SERVICE.Is there any law,a small business concern will not give any  assistance to the buyer?. I also sent a enquiry to HF SIGNAL.BUT NO REPLY.
 
THANKS & REGARDS
VU2NSK

On Mon, 17 Jun 2019, 7:00 am Curt via Groups.Io, <wb8yyy=yahoo.com@groups.io> wrote:
Hfsignals is a small business, not full time, he patient. Do discern what is really missing.

Re: KD8CEC - Bug with storing label for Memory# 10

Mark Hatch
 

Just wanted to close this thread that Vic also confirmed this problem with saving a tag/label to location 10 with KD8CEC 1.2 and v3 of the Nextion screen software. If anybody has a solution, look forward to hearing it!

73
Mark

Re: pop click pop on tuning BITX40

Allard PE1NWL
 

John,
glad to hear that it's fixed!

There are a number of improvements in the software that reduce the clicks,
perhaps the most important one is the usage of Jerry Gaffke's si5351
routines instead of the standard si5351 library.

73 Allard PE1NWL

On Mon, June 17, 2019 03:24, John Cardoso wrote:
Allard, Is this really true? *So it is!* I installed your version 1.28.1
and it is all like music to my ears. All the clicks, crackles and pops are
a thing of the past. All pops gone. Totally. Only the beautiful band
background noise. Congrats, you solved my problem that was starting to get
to me.
I am grateful for your help. Now the usual question: What was it that was
solved in software?
Cheers guys.