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Date
Re: Low sensitivity
Bruce, The MFJ is handy but its far from calibrated in frequency. Allison --------------------------------- No direct email, it goes to bit bucket due address harvesting in groups.IO
By ajparent1/kb1gmx · #80369 ·
Low sensitivity
Fellow Utix v6 users.? I have a new v6 radio I am trying to determine if it is properly working.? I am unable to pick up wwv signals so I am calibrating using a mfj 259b as a signal source.? I have
By Bruce Morrell · #80368 ·
Re: Building a 12V Supply Board
The ¡®clacks¡¯ are most likely radiated noise and not conducted. This is normal. Dale W4OP Sent: Thursday, July 9, 2020 1:09 PM To: [email protected] Subject: Re: [BITX20] Building a 12V Supply Board
By Dale Parfitt <PARINC1@...> · #80367 ·
Re: Building a 12V Supply Board
It's definitely coming from the mains, if I switch off the soldering iron I get a <clack> on the audio of the radio, if I switch off the main light switch in the room I get an extremely loud <CLACK>.
By Peter McCracken EI3JCB · #80366 ·
Re: Building a 12V Supply Board
Hi, I would agree that a noisy power supply should be tamed at the power supply. I will suggest looking at the schematics of PC switching power supplies and focus on the filtering circuits that
By Bill Cromwell · #80365 ·
Re: Building a 12V Supply Board
Peter, Before you go through the trouble of building in the "noise" filter, I would first verify that the noise is coming from the 12 supply.? The best way to do that is to test the noise level on
By Evan Hand · #80364 ·
Re: construction
I believe that Sarma has hit on the most probable cause.? I have had issues with the antenna pins coming loose, so the red power lead to the mainboard is a good candidate.? If you add the leakage
By Evan Hand · #80363 ·
Building a 12V Supply Board
Hi all, I want to build a dedicated power supply board mounted to the back of the case and remove the regulator that is currently on the raduino, I also want to try to "clean" as much noise as
By Peter McCracken EI3JCB · #80362 ·
Re: construction
Appears loose pins on the 3 wire power plug. Especially if Red wire is loose and some leakage current on the brown Tx wire somewhere could be an answer for 3.5mA Sarma vu3zmv wrote:
By MVS Sarma · #80361 ·
Re: construction
Not sure I understand bypassing the diode.? Per the wire up instructions, the supplied diode is to be used for reverse voltage protection, and if you wired it per the instructions then bypassing the
By Evan Hand · #80360 ·
Re: construction
Hi Evan Thanks for your reply. I have checked the voltage form the power supply and it is 12.3 v. I bypassed the diode in case there was a problem there but still came up with the same result of 3.5ma
By Ray Lenthall VK3JH · #80359 ·
Re: construction
Ray, There are 7 2n3904 transistors that should be on in a linear bias plus the LM386 audio amp when in receive.? If you have wired the power correctly (the RED wire is the +12volts to everything
By Evan Hand · #80358 ·
Re: construction
Hi Ted Thanks for the reply. No the Raduino was not connected the picture in the documents doesn¡¯t have it connected Regards Ray Sent: Thursday, 9 July 2020 11:24 AM To: [email protected] Subject:
By vk3jh@... · #80357 ·
Re: construction
That's what it should read when the finals have had their bias adjusted iirc
By Paul · #80356 ·
Re: R1.4.0 Software Release #ubitx #nano #v6 #ubitxv6
Yeah, I don't know what bloat was added, but there's a reason I called out the specific IDE version in the Readme file :) Reed
By Reed N · #80355 ·
Re: construction
Hi, Ray. Is the Raduino connected? Ted
By Ted · #80354 ·
construction
Hi I purchased a V5 last year and am only now starting to put it together. I have wired up the DC power plug as per the instructions and the instructions tell me if I apply 12v it should draw between
By vk3jh@... · #80353 ·
Re: R1.4.0 Software Release #ubitx #nano #v6 #ubitxv6
All compiles fine under 1.8.9... the updated libs in 1.8.13 seem to cause bloating...
By Peter McCracken EI3JCB · #80352 ·
Re: R1.4.0 Software Release #ubitx #nano #v6 #ubitxv6
What version of Arduino are people using to compile this ? Thanks!
By Peter McCracken EI3JCB · #80351 ·
Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion
Dale, Correct save for NOS abounds and also poor quality copies. Its more be wary and careful. Allison --------------------------------- No direct email, it goes to bit bucket due address harvesting
By ajparent1/kb1gmx · #80350 ·