Gerard In much earlier times we did order same frequency crystals in 100 unit groups and tried to select from that to obtain the desired bandwidth and shape factors. Later we discovered that Conn type

Most ham radio systems seem designed for close-talking the microphone. Some non-ham systems are designed for full-room pickup of audio. This is probably not good for ham radio because it brings in a l

Doug We try to help! 8-) Arv _._

Bob Apparently you did not read the manufacturer's information on the kit before you purchased it. This group was founded many years ago to be the on-line support vehicle for BITX transceivers, and ha

Start by moving the BITX40 or the uBITX-v6 a couple of miles away from the other rig. Fundamental overload could possibly be part of the problem? _._

#bitx40help

He was never banned! To the best of my knowledge, no group member has ever been banned. A few have been put on moderation for various reasons, but none have been banned. Arv MODERATOR

He was not banished! _._

Not true. Two people complained about his advertising at the end of each post. Dr. Schmidt and myself discussed it off-group and came to an agreement that resolved the issue. Since then only a couple

Jack You are probably more of an EE than you realize. In order to write software that interfaces directly with hardware you have to have a significant knowledge of that hardware. There are EE's whose

#ubitxv6 #firmware

Jack Depends on calibration and dynamics of the added meter and supporting circuitry. With a transceiver like the BITX series that uses fixed-gain blocks, the meter could even be configured to show mi

#ubitxv6 #firmware

Bill I agree with your minimally invasive S-meter idea. We have used that approach for many years. Problem for the younger set is that meter movements are becoming more difficult to find, and more exp

#ubitxv6 #firmware

Jeff It has been reported. This is the support group for HF Sigs, and it has been reported here. Arv _._

RF output is higher when the antenna is tuned to resonance. This causes RF to enter the microphone, the mike cable, and the mike amplifier. Can also enter via the key lead if it is fairly long. Power

#v6 #ubitx

That reference to trying to sync an STK500 board is interesting. Big difference between the Nano and a very old (extinct...?) STK500 development board. _._

If it is a "Charging Cable" it may not have the data leads. If it is a data cable it will work for both data and charging. You do have to select the correct Arduino model and the correct boot loader f

Bob The arduino or raduino is programmed using C and C++, so you are nearly there. You will need the arduino IDE for the easiest way to work on an arduino nano. Arduino code layout is in two sections,

Bob N1KPR In today's equipment much of what we used to do with hardware is now being done with software. This makes things more flexible because software is much easier to change than hardware. There

It is rather easy to damage capacitors by subjecting them to excessive heat when re-soldering them. I would start by bridging suspect capacitors in the touch-sensitive area with a good unit of similar

Recently (past several years) the original 5V FT232RL FTDI USB to TTL Serial Converter Module has become quite expensive due to short supply of the now aging converter IC. Most Nano board manufacturer

Peter All this seems to point to a uBITX or BITX that is being run at near maximum audio volume level. I would probably look at RF and IF circuitry to see why it is necessary to have the volume turned