Date   
Re: BITX QSO Afternoon/Night, Sunday, March 18, 3PM/7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere

John P
 

Pretty quiet again this afternoon! Anyone else out there?
--
John - WA2FZW

Re: Soldering gun or iron

Fred Buecker
 

Let us also not forget the importance of quality solder toward the end-goal of a quality job.

-Fred
KC3HMS

On Fri, Mar 16, 2018 at 4:06 PM, Richard Spohn <wb2gxm@...> wrote:
There are two very good youtube videos by Dave Cassler, KE0OG, on
soldering irons, accessories and techniques:

https://www.youtube.com/watch?v=9XW_gkdWJ5U

https://www.youtube.com/watch?v=gqz1xGj_m_E

Hope these help! - Rich WB2GXM



On 3/16/18, Ashhar Farhan <farhanbox@...> wrote:
> I have learnt to live with just about any iron. What matters really is a
> nice clean tip. These days they are tips that don't pit. I like those. Keep
> a good sponge, wipe them often.
> - f
>
> On 16 Mar 2018 9:47 am, "Christopher Miller" <djmalak2k6@...> wrote:
>
>> The images of what I needed minimum. It looks like the station is not
>> available but there are ones with more features around 70$.
>>
>> Chris
>>
>>
>




Re: BITX QSO Afternoon/Night, Sunday, March 18, 3PM/7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere

Tom VE3THR
 

Hey john...what freq you on? VA QSO PARTY on and hi power guy on 7.278. Damn easter lilies - only come out once a year.

Re: BITX QSO Afternoon/Night, Sunday, March 18, 3PM/7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere

Rob Snow
 

I'll be trying all afternoon on 7.277 on my newly built Junkyard uBITX.  Central Texas QTH

73
Rob
AG5OV

uBitX low output power, received audio OK #ubitx

KE0GYC
 

I'm a fairly inexperienced builder and don't know much of anything about debugging issues, so please bear with me.

I ordered my uBitX and I have it set up in a small pelican-style case field-radio style with all the controls on top.  So far it is all stock and I have made no modifications - I am powering it by alligator clips to the appropriate spots on either side of the reverse protection diode, and the only nonstandard thing about it is that it is wired to run an unmodified Baofeng mic.

I noticed I am getting low power output on 40M and 80M.  It originally was putting out around 1-2W.  My received signal sounds fine on a commercial receiver a few feet away.  After I reset the PA bias and adjusted RV1 for maximum smoke, I am still getting only around 4-5W out.  

I did check Q90, and it does not appear to be shorted - Another thread mentioned that as a possible cause of low power out.

I did notice unusually low current draw when I reset the PA bias.  With both pots fully clockwise, I was getting 390ma with PTT down, where the instructions for tuneup say I should expect 470-500ma.  Could this have something to do with it?

Any help is appreciated.

73
KE0GYC

Re: uBitX low output power, received audio OK #ubitx

KE0GYC
 

Another note:  I am only drawing 1200ma on transmit with full modulation (AAAAH into mic), and after adjusting RV1 it is still around 1300ma.

Listening for BITX on Sunday 7277 kHz

Ken Brown <n4so.ken@...>
 

I am set up on 7277 kHz and listening now for BITX stations on SSB, 3 PM Central time.

Ken N4SO

Virus-free. www.avg.com

Re: Listening for BITX on Sunday 7277 kHz

John P
 

Ken, you should post on the thread with the announcement. Most of us that participate monitor that thread to see who is around. 
--
John - WA2FZW

Re: Listening for BITX on Sunday 7277 kHz

Tom VE3THR
 

are you hearing W5ODJ ? He was on 7.278 and decided to move onto 7.277 and calling CQ VA QSO PTY. Not hearing any BITX stations up hear.
Tom VE3THR

Re: BITX QSO Afternoon/Night, Sunday, March 18, 3PM/7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere

John P
 

On Sun, Mar 18, 2018 at 12:35 pm, Tom VE3THR wrote:
Hey john...what freq you on?
I only spent about 15 minutes o 7227. Heard nothing so I took advantage of the slightly warmer afternoon to cut up all the storm damage from the last 2 nor'easters. Big tree limbs all over the back ya6.
 
--
John - WA2FZW

Re: Listening for BITX on Sunday 7277 kHz

Rick Price
 

W5OJD was splattering all over 7.277 here north of Chattanooga. So, I moved up to 7.278 and had my very first QSO with the ubitx. Virginia to SE TN not bad for 8 watts on a Sunday afternoon.  Rick P KN4AIE



From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Tom VE3THR
Sent: Sunday, March 18, 2018 4:06 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Listening for BITX on Sunday 7277 kHz

are you hearing W5ODJ ? He was on 7.278 and decided to move onto 7.277 and calling CQ VA QSO PTY. Not hearing any BITX stations up hear.
Tom VE3THR

No signals on 7277.00 kHz

Ken Brown <n4so.ken@...>
 

7277 kHz.  No signals at all starting at 3 PM Central time, 2000 UTC. K4FW is below, calling in the VA QSO party.  I should be able to hear TX and VA.

Anyone actually on?

Ken N4SO





Virus-free. www.avg.com

Re: BITX40, are these SA traces as they should be? #bitx40help

Thomas Sharka
 

If you have a cell phone,tablet or even a laptop/desktop then you have an audio generator.





Sent from Yahoo Mail. Get the app


On Sunday, March 18, 2018 1:41 PM, "news1@..." <news1@...> wrote:


Hi all,

Built my Bitx40, mostly to learn more about troubleshooting radios. I know a bit about measuring and how things "work" but just from reading theory. Practice is clearly different, and a good way to actually get some understanding.
As a result, my setup and measurements may be flawed from the beginning, though I try to do things the "right" way.

As I didn't receive much when trying to listen to the Bitx40 on my TS-870, I started looking at the schematic and trying to figure out what was going on.

Measurement setup:
Bitx40 through 20dB attenuator into a SA. VFO/DDS frequency set at 7110 kHz, no modulation into the microphone (shorted the pins) except for the screenshot with the 10kHz span.

In the 2MHz span, note the strongest peak is at -12dBm around 7333 kHz.
There's another peak around -18dBm at 7110 kHz (which I suppose is the DDS)
Another peak at 7555 kHz, about -41dBm.

In a 10MHz span, I see peaks at 14.218 kHz (-78dBm, obviously harmonic of DDS freq, right?) and 14.445 kHz (-68 dBm, no idea where this comes from).

I don't have a audio freq generator, will build one to inject a know signal into the mic input.

So, a couple of questions:
  1. As the tranceiver uses SSB, shouldn't the carrier be much more suppressed? Ideally, no carrier?
  2. Is the strong peak at 7333 supposed to be there? That's +6dBc, correct?
  3. What's with the 14445kHz peak? There's no peak at/around 7222 kHz...
  4. If I inject a 1kHz signal into the microphone input, what kind of voltage RMS should I use?
  5. A 1kHz on the input should show up as a 7109 kHz signal, is that correct? I tried some "steady" whistling and got a peak at -8 dBc at 7108.4 kHz and another at 7112.1 around -45 dBc (see the 10kHz span screenshot)
  6. In the 10 kHz whistling screenshot, I suppose the signal (result of the whistling) is at 7108.4 kHz, but -8 dBc. Shouldn't this be much more?

I might be missing something obvious, but have been looking a it for a couple of evenings now.

Thank you,

Dieter
ON4DD


Re: BitX40 case from The Home Depot...

Steve
 

Oops.  The Husky cases are polycarbonate, not acrylic.....Aloha, Steve.

uBITX Firmware CEC Version Added WSPR function, I am looking for a beta tester.

ge_clipboard
 

Hello Ian

While chasing a dx on 30m found another bug.
When RIT is enabled and then going into the Memory Keyer, one can‘t select a Memory except Nr. 0 as then the RIT-frequency is tuned.

73, Gerald - HB9CEY

Re: BITX QSO Afternoon/Night, Sunday, March 18, 3PM/7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere

R S
 

I hear a 10 wattter horizontal loop. Tom. Not sure about call. Here in Ayden, NC.  Things changed here quickly. Station on AM here, up from 7.277

Ron.   KJ4FFG




On Sunday, March 18, 2018, 16:10, John P <j.m.price@...> wrote:

On Sun, Mar 18, 2018 at 12:35 pm, Tom VE3THR wrote:
Hey john...what freq you on?
I only spent about 15 minutes o 7227. Heard nothing so I took advantage of the slightly warmer afternoon to cut up all the storm damage from the last 2 nor'easters. Big tree limbs all over the back ya6.
 
--
John - WA2FZW

Re: Listening for BITX on Sunday 7277 kHz

Vince Loschiavo
 

Thanks Tom VE3THR and Bill NG1P tonight on 7.277 first uBitx contact with other uBitx and bitx40..
Loaded (after some angst) KD8CEC now interfaced with Ham Radio Deluxe. (both ways).
Now has a 3.5in touchscreen Raspberry pi for digital modes on the right hand side of the front panel.
thanks all for the help
de
N2AIE
Vince
Cedar Rapids, IA

#uBITX Firmware CEC Version Added WSPR function, I am looking for a beta tester. #ubitx

ge_clipboard
 

Hello Ian

While chasing a dx on 30m found another bug.
When RIT is enabled and then going into the Memory Keyer, one can‘t select a Memory except Nr. 0 as then the RIT-frequency is tuned.

73, Gerald - HB9CEY

Sketch Upload Error

Tim Young
 

I am receiving an error when trying to upload the KD8CEC sketch. Please take a look at the attached screen snip jpeg.

Suggestions?

Thanks,

Tim
WB7UVH

Re: uBitx with first mod and question

Richard E Neese
 

you willing to part with 2 of them at 10 bucks a piece plus shipping