Re: A 15-10 meter rig based on the BITX, but with lots of innovations
Wow, that is awesome.??I did not understand most of what he said lol but the radio sounds great
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Astro-Nights with Mike Christiansen
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#109323
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Re: [NAQCC-News] New Senate Bill for HOA antennas
John:
I just sent this to my senators.
Dear Senator ____:
I'm writing about the pending legislation: The Amateur Radio Emergency Preparedness Act of 2024. I trust that you are familiar with the
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Jack, W8TEE <jjpurdum@...>
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#109322
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Re: sbitx encoder contact bounce
Farhan,
In reviewing the tuning encoder, I found the function tuning_isr(void):
static int tuning_ticks = 0;
void tuning_isr(void){
int tuning = enc_read(&enc_b);
if (tuning < 0)
tuning_ticks++;
if
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Evan Hand
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#109321
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Re: Getting much closer to hearing something
I had a senior moment looking at those pictures and thought you were up
around 14800, but that isn't an 8, it's a 0. So look at the waterfall where
14020 is located. See the dots and dashes flowing up
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Gwen Patton
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#109320
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Re: A 15-10 meter rig based on the BITX, but with lots of innovations
Gordan,
Amen on that. its always fun to do something which wasnt meant to be and make something better than what it was.
73
David
ac9xh
By
david todd
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#109319
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Re: A 15-10 meter rig based on the BITX, but with lots of innovations
Steve,
I also must apologize. for the hijacking . the solder smoke video is incredible. I love the way he used copper foil on board with each board slightly isolated . incredible
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david todd
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#109318
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Re: A 15-10 meter rig based on the BITX, but with lots of innovations
Aaron,
You always have to assume the outputs of any transceiver is unclean. I have friends with 1000 dollar radios that think their outputs are super clean and when you put them ona spectrum analyzer
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david todd
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#109317
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Re: A 15-10 meter rig based on the BITX, but with lots of innovations
A fascinating project, guys!
Gordon KX4Z
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Gordon Gibby KX4Z
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#109316
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Re: #sBitx on Raspberry Pi OS 64-bit
#sBitx
I checked my Pi 4 install and in the /boot/config.txt file it says "The file you are looking for has moved to /boot/firmware/config.txt"
So I'll modify my script to put the config.txt in
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JerryP
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#109315
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Re: sbitx encoder contact bounce
Jack,
In the sbitx, the encoders fire interrupts and measure the time through
millis(), it is a wrapper around utime()
- f
[email protected]> wrote:
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Ashhar Farhan
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#109314
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Re: #sBitx on Raspberry Pi OS 64-bit
#sBitx
The hdmi audio devices interferes with the audioinjectorpi device driver which is why the following line is in the config.txt file:
# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d,noaudio
I filed a
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JerryP
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#109313
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Re: A 15-10 meter rig based on the BITX, but with lots of innovations
A block diagram of the conversion concept is attached.
Apologies to Bill for hijacking his thread. At least the conversion process requires the generation of some SolderSmoke.
73; Steve, N3SB
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Steve Beckman
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#109312
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Re: sbitx encoder contact bounce
My experience is that debouncing in software can vary from encoder to encoder. I would suggest creating symbolic constants for each encoder (e.g., tune, volume, etc). Usually, the delay is between 40
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Jack, W8TEE <jjpurdum@...>
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#109311
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Re: A 15-10 meter rig based on the BITX, but with lots of innovations
Aaron,
Just like Steve pointed out to, using an si5351 and maybe an adrduino to complete the vfo build will give you maximum choice. Uniden i converted , i could not find the exeact crystal, but in a
By
david todd
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#109310
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Re: A 15-10 meter rig based on the BITX, but with lots of innovations
I never though about getting inline filters. I have a couple of QRP radios that do nothing but gather dust because I think that their output is unclean. I have never had them checked though
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Aaron K5ATG
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#109309
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Re: A 15-10 meter rig based on the BITX, but with lots of innovations
Aaron,
Yes if the cb is channelized the conversion will also produce a channalized 10 meter version. As for clean? always place properly designed lpf filters in circuit.
Always.
the Cbs are known
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david todd
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#109308
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Re: uBITXv6 Main Board 12v Rail Power Failure
#ubitx-v6
#ubitxv6-help
I would start with looking at the electrolytic capacitors directly across
12v line, c98, c99. Perhaps one is swollen and shorting?
Scotty
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Scotty R
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#109307
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Re: Wiki Page: Troubleshooting the Transmit Receive System
#wiki-notice
Thanks! Didn't know they had changed the values. I'll eventually edit
to fix that.
Gordon KX4Z
By
Gordon Gibby KX4Z
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#109306
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Re: A 15-10 meter rig based on the BITX, but with lots of innovations
Hi Aaron - It depends on how you perform the conversion. With the SI5351 replacing the existing PLL, I have the ability to control the frequency in 10 Hz steps. It? may be possible to get even
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Steve Beckman
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#109305
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Re: uBITXv6 Main Board 12v Rail Power Failure
#ubitx-v6
#ubitxv6-help
I must add that a fuse is required on the input to the uBiTx.? I suggest mounting the fuse in the case with the radio wired between the D6 and the switch.? This is to protect the wiring and board
By
Evan Hand
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#109304
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