开云体育

On Wed, Jul 24, 2024 at 02:30 PM, Don Trinko wrote:

thanks; i am not having any problems so i think i will stay with the factory firmware.? Don w8ptb

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It's satisfying if it works well for you, but staying on 32 bit you lose the whole suite of programs installed by JJ, the very active support of the developers from JJ's page

thanks; i am not having any problems so i think i will stay with the factory firmware.? Don w8ptb

Good morning,? what kind of equipment is it from?

Another method, with the help of google, is to type in the terminal: getconf LONG_BIT
and you will find out from the answer.
more info:

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Gyula HA3HZ

The manufacturer still ships 32-bit. If you want 64-bit, you have to do it yourself.

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Gyula HA3HZ

how can i tell what firmware my v3 has installed? it is new and i bought it from Gigaparts in the usa

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Gyula HA3HZ

Hi,?

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I'm new to the group, and got my V3 just last week.. and now time to fiddle..?
First I made a copy of the internal SD card, then saw the issue with the time.. until I found this solution...?
Many thanks to rdg!

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73,

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Dick

I have a customer who has a bad speaker and need a replacement.. The only identifier on the back is VG6527. Does anyone know where to find a replacement?

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Thanks,

JJ

Hi Jeff,

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I!! Remind yo nex week, I’ll leave another post here. Thanks, I really appreciate it.

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Robert

On Tue, Jul 23, 2024 at 05:12 AM, Gordon Gibby KX4Z wrote:

Jon -- made your improvement,? now came up on correct mode!? thanks!!

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Gordon KX4Z

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when you recoded the kd8cec for the pico did you use pin numbers or gpio numbers ? as I am tring to follow what you did

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is it possible with the work you did on the kd8cec we can do the same for the ubitx v6 code and pport it tou work on a 3.5 I have and recode it for 2m?

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On Sun, Jul 21, 2024 at 02:37 PM, Jon / W2JON wrote:

Gordon, I'm not sure if you saw this behavior or not, but there was a little bug in that tune that would initialize the rig to 2TONE when it was first brought up.

The TUNE OFF condition rolled the previous mode to the literal "last mode" in the mode_name array.?

I have altered the code block slightly to keep the TUNE OFF from tinkering unless we are using the TUNE utility.

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Jon -- made your improvement,? now came up on correct mode!? thanks!!

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Gordon KX4Z

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Hello Everyone,

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I agree with Tomasz and previous observations that the receive sensitivity of the ubitx radios, especially since v5, is generally really good. I have noticed that above 15m, receive sensitivity drops off a little. I wonder if anyone has found a way of flattening the gain of the 1st IF amp above 21MHz? There was originally a suggestion that adding capacitance across R12 improved things, although this applied to pre v5 circuits when Q10 was 2N3904 (/g/BITX20/topic/25165192#msg58492). There are probably other factors to consider, so it might not be as simple as tweaking the first IF stage, but it would be nice to increase sensitivity here a little without adding additional (pre) amp stages, especially with the recently increased activity on the 10m band.

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All best wishes,

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Dave

G7ABO

My very first fan was similar. For me, the noise was 25dBA and it consumed 12V 100mA.
When it started getting noisy, I started looking for another one and found the 12V 40mA 16.3 dBA. Since the fan cooling the heatsink is 92x92x25mm and 12V 40mA and 17dBA, I was satisfied with this. I recommend that everyone look for the quietest one possible, because sooner or later you will hear your voice. It wasn't your ears that got better hearing. ;-)

If I could, I wouldn't use the fan, but at the moment I don't see a better cooling option. However, the RPi row of pins could be routed to the other side of the pcb, then another cooling option would immediately appear.

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Gyula HA3HZ

Update - got a 50 mm fan and it fits a print from the design perfectly.

I'm in no hurry to replace the 40 mm fan as I never get the Pi above 55 C, even with heavy FT8

use.

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73
??? Bob? KD8CGH

what vfo code you going to use as a base? or are you writing new code...

Hello Thomas,

Ubitx v6 as claimed by designer is 0.2uV, but IMO - even better.

RTL-SDR what I have found ~0.5uV - which is what I have observed - ubitx is far more sensitive than RTL-SDR.

It should be also more resistant for cross talk as this is superheterodyne receiver.

The advance of RTL-SDR is multi modulation platform (AM, FM, SSB, CW etc.) while ubitx is SSB and CW.

For Your purpose (wide coverage mobile receiver) You should rather consider some global radio (like Tecsun, ATS-20 etc.).

But if You are looking good, cheap transceiver I recommend ubitx v6.

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Last IARU HF July 2024 contest I have made a lot of DX contacts with ubitx v6 and PA70 amplifier (on some bands PA not exceeding 30W, lower 50-60W).

From central Poland I made contacts with Brasil, Argentina, Japan, USA, Puerto Rico, Hawaii, Oman, China...

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This is really powerful rig and I like it mostly due to its superheterodyne design, simplicity, reliability, tinker-ability...

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Regards

Tomasz

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This is independent of the clock source. You need to add that to this design externally.