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I wondered about the cross-talk in the Si5351. There have been a number of papers written on it being problematic… to the point of suggesting using only one channel of the Si5351 but multiple parts

Bill W4NFR The picture you provided is the back side of an Arduino Nano board. The crystals on this PCB have nothing to do with the transmitting frequency of your transceiver. The SI5351a frequency

Excellent! So no second 45mhz filter, no surface mount inductors at L5,L7,? L1,L2,L3,L4 ? TP13 is not shown in the v3 schematics, only in the v4 schematics. I assume these mods work will work on the

Im trying to upload new firmware to the bitx40 and the arduino isn't recognized by the comp the red light comes on but no where in the device manager.? I know it isn't a cable because it recognizes

Scot, If you access this list from the website /g/BITX20/topics there is a search button toward the top.? Searching Baofeng Socket produces several hits including this gem

Allison is correct as usual, on further inspection, there is another crystal on the other side of the Nano board. I can not read the stamped information on the units that I have, even worse that the

Are you sure that in not the crystal for the CH340 USB to serial? All the Nanos I have the MPU crystal is on the front (side where the atmel MEGA328P many legged chip is). The likely cause of the 1khz

That looks like an Arduino Nano board, not the Raduino in a uBitx. I checked one of my spares and noted what could be taken as 20 J stamped in the crystal, though I thought the Nano was clocked at 16

HERE IS A PHOTO OF BOARD AND CRYSTAL. W4NFR --- This

Want to use a Baofeng mic on my BitX40 but have not been able to find sockets for the cabinet. Anyone know of where I could get them? Thanks, Scot WB7AVU

OMG. acidentally crept in perhaps . could you please share a photo please, !!!!! regards sarma vu3zmv

I OPENED UP MY uBITX? AND TOOK A LOOK AT THE S1535A BOARD. THE CRYSTAL HAS 20.0 STAMPED ON IT INSTEAD OF 25.0 MHZ? --- This email has been checked for viruses by AVG. https://www.avg.com

I OPENED MY RADIO TO INSPECT THE CRYSTAL ON THE S15351A BOARD. THE NUMBERS 20.0 IS STAMPED ON THE CASE INSTEAD OF 25.0? COULD THIS BE MY TROUBLE WITH THE FREQUENCY READOUT OF 1 KHZ LOW . W4NFR ---

I used this to line the interior of my plastic case.? I overlapped the tape and soldered sections together at the overlap.

so, there is one spur fix that is now consistently working for me. among rhe solutions, i was looking for one that would be easy to apply. first, the distortion in the 45 mhz amp is creating harmonic

Yes...sorry for wrong spelling

I believe you meant hamskey web Ian Lee web site.

S meter using lm358 as sensor is very simple. One more sensor version is using another Arduino. For more info refer hamsky web. wrote:

Hi Doug For illustartion pupose it was left there Yes I know it can be taken out by inserting a pin into the notch 73 Pop VU2POP Sent: Thursday, November 08, 2018 8:13 PM To: [email protected] Subject:

Here is a list of links for ch340 drivers for both the Mac and Windows. /g/BITX20/message/51600 If you do decide you want to run the CEC uBITX Memory Manager on a Mac this link may