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Re: Nextion Display: Source ???
I trust Worldchips store in Ali??http://s.click.aliexpress.com/e/v9spDgU?but they have 2.4 and 2.8 inch LCDs, removed 3.5 and higher from list. Alternatively Aihasd store is available with higher
By TA2WK · #62144 ·
Re: Nextion Display: Source ???
I got my nextion displays direct from their sale site https://www.itead.cc/display/nextion.html 73 Pop VU2POP Sent: Friday, November 30, 2018 8:39 PM To: [email protected] Subject: [BITX20]
By Prathap Naidu · #62143 ·
Re: Consider the Bitx40, clean and cheap for 40m
I have several thoughts on how to go about it. One is buying the BITX20 board set that uses the diodes and toroids for the mixers, and making a small board or two to use toroids as band
By Wayne Leake · #62142 ·
Re: Totally Absurd -- Farhan being questioned in a police station about doctored sat picture
Hi Farhan, sorry to know about the problem you faced. Dodgy people re all over and also people that do not understand, still dodgy..hi. My remote support for you. 73 Gian, I7SWX | | Mail priva di
By Giancarlo - I7SWX · #62141 ·
Re: Bitx40 and nextion displays #bitx40
Some where in Dr. Lee's replys,on his website, I thought I remember Dr. Lee congratulating someone on getting the Nextion to run on a bit-x 40.? you might go through those threads Andy Km4trt
By KM4TRT · #62140 ·
Re: Your Must Have Mods!
See other threads for addressing spurious. Our group build is adding a 45 MHz filter stage, and using a daughter board with relays. It seems to be an adequate and reproducible fix, we will know soon.
By Curt · #62139 ·
Re: Your Must Have Mods!
According to the reviews, you also have to get your own schematic. And measure part values, as the caps are not identified. Glad it worked for you, but this might not be a good option for many. In my
By Jerry Gaffke · #62138 ·
Re: Your Must Have Mods!
BPF would be a strong guarantee no overloading would be heard in the receiver (except for strong signals within the bandpass). Others have pointed out that brand transceivers have BPF in the TX chain.
By iz oos · #62137 ·
Re: Your Must Have Mods!
I built one of the cheap linear amplifiers from eBay.? Under $20 gets you 70 watts.? You have to get your own case and heat sink and filter the output.?? Since I only use 20 meters I put a single
By Lee · #62136 ·
Re: Your Must Have Mods!
Thanks everyone for the opinions! I am going to skip the Tx/Rx light since it is displayed on the nextion (totally forgot about that) What are everyone's thoughts on a good LPF kit?? I have looked
By inftechllc · #62135 ·
Nextion Display: Source ???
Dear OMs, Let me know from where you guys are buying Nextion Display? I'm looking for a reliable seller, you might have experienced I recently brought from AliExpress but received a damaged piece.
By Dileep Balan · #62134 ·
Re: Your Must Have Mods!
I don't think a RX preamp is really needed. - 107dbm signal is clearly audible. However some 'digital hash' or artifacts could be buried by noise floor and this would be good. Being without BPF It
By iz oos · #62133 ·
Re: Nextion White screen issue
@Snowist: I tried powering up from the Samsung mobile charger 5V, 1A. Behavior is same. Yes, I also think that LCD may be defective. Thank you for your suggestion. Regards & Many 73s Dileep VU2DLE
By Dileep Balan · #62132 ·
Re: Ubitx v4 Raduino goes into Band Select menu during modulation
I had the same issue, however on 20m. Traced it to rf riding the coax braid back from an off center fed dipole (MFJ-2010). Solved it by grounding the shield before the radio, and placing a ferrite
By Evan Hand · #62131 ·
Ubitx v4 Raduino goes into Band Select menu during modulation
Dennis Yancey ( /g/BITX20/profile/406210 ) 4:22am???#62129??( /g/BITX20/message/62129 ) I have a v4 uBitx. I just installed the SM2166 mic preamplier per
By Dennis Yancey · #62130 ·
Re: Comparison of LPFs with SMD and Toroidal inductors
This test is NOT on a BITX board, the loss at 45MHz and 90MHz is a points for comparison of both components. This was done on a test jig I made with 2 BNCs and hooked to a SA.
By Raj vu2zap · #62128 ·
Re: Comparison of LPFs with SMD and Toroidal inductors
Jerry, Any one wont do Jerry! has to be a shielded variety with about 2 ohms DC resistance. Changing the relays KT1/2/3 to Axicon (thanks to Mike Doty) results in reduced harmonics which reduces
By Raj vu2zap · #62127 ·
Totally Absurd -- Farhan being questioned in a police station about doctored sat picture
https://soldersmoke.blogspot.com/2018/11/totally-absurd-farhan-being-questioned.html
By Bill Meara · #62126 ·
Re: Your Must Have Mods!
A preamp can help on RX. But I suggest having a gain control. Start with a good antenna first. For the RX/TX LEDs, I have some RGBs that I will use the red and green. Have not figured out a use
By Wayne Leake · #62125 ·
2.8inch display & front panel
Hi Just checking out the new test Front panel & test bezel for the 2.8 inch TFT display best 73 Pop VU2POP
By Prathap Naidu · #62124 ·