开云体育

I did that too. Plus I added a amp/compressor board. My audio level are hitting nicely now ?? Joe

Nice, and continue to share your experience as you advance. all the best regards sarma vu3zmv

Back online after 3 weeks in Mongolia........ ERA-3SM+ MMICs arrived while I was gone. 10 pieces for $7.78 including shipping from China on eBay. I strongly suspected counterfeit goods but initial

With Jack’s and others help in resolving encoding issues on Raduino, I have learned that the KT-040 World great. Most encoders will work, if your Nano is without issue. I have tried several

If you can get microphones made for the G.E. Delta and Rangr series, they come with a preamp built in. Just wire the connector of your choice onto the cable. I bought a batch of mikes for those

If you do not like working on the V3 board you could add up toa 2.2k dropping resistor in the mic in series with + voltage line to electret element. As to low audio a little amp or compressor amp in

11v seem a lot. To have a reasonable average power in SSB I followed the advice by Howard Fidel in my vers. 3 ubitx: ' Change R63 to 24 ohms. The earlier rev boards had 100 ohms there, and V3 has 47.

Hello Ian, may be you could try this speech process circuit if you haven't seen it yet: http://bitxhacks.blogspot.com/ (look at the bottom of the page) I hope to find some time to test it in the

Given that the main problem is the layout, although better relays seem to help, has anyone tried shielding the relays from the PCB using copper tape between the board and relays, soldered to the

You nailed it with the rework. I probably wouldn’t go through that effort although I don’t mind, but different relays that can keep the issue at bay seems like a no brainer if you don’t want to

Brian, that one is an optical encoder with detents decent quality and saves the additional cost of a suitable knob. have used a faster version with the detents disabled to make it free turning for a

If it's one of the ceramic resonators on the Nano, I doubt messing with the BFO will be much of a fix. Move the BFO more than a few hundred Hz and the rig will no longer work properly. (You could try

I too have noticed this high pitch that goes higher in pitch until it hits that magical point that I just can't hear it. I also have noticed microphonics when I push the encoder for band changes, rap

Hi all, what about trying to incorporate one of these instead of an encoder?

I have a version 3 uBITX which came with a tiny electret capsule which has been wired up. Firstly I am concerned that there is around 11v DC on the audio input, I was expecting no more than about 5v

David Try lightly touching the 12 MHz crystal that drives the USB port on your Arduino Nano. Also try lightly touching the 16 MHz crystal that drives the Arduino processor itself. It may be that one

These things are complicated, I certainly wouldn't say anybody's being phony. There are multiple reports of Axicom relays mostly solving the issue of harmonics (except 40m?) as measured by a spectrum

I have a problem with high pitch audio oscillation. I have tried several audio amps to boost the audio of the week Audio Amplifier in version 4. I am rigging all lines with RG-174 coax for maximum

Welcome back Allison, I have been convinced too by these phony people to simply replace the relays. I suspect some of them work for either Axicom or the Farnell :)

What I'm seeing yet another wish for a single pill fix... Using better relays even omron G6 series helps... to a point.? That point occurs when the board layout under the relays (the real cause of