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I thought drive level was 1mA... during checking of the alignment process i followed instructions given in hfsignals... this has to be updated as i have checked over and over in order to soove this (i

Ok Martin, you are on the list. Bill, VK7MX

No worries Andrew, Thanks Bill, VK7MX

Adding capacitors as you did can indeed reduce the tuning click issues, but will not have an effect on the 7199 kHz birdie. Regarding the birdie: Have you already tried different VFO drive levels? In

Have you got the diagram for the interface by any chance and has anyobe heard about the release date for the uBitx yet

no luck here .... have someone on a langue I do not understand here with 9++

bitx is 100% stock except from a 7808 with .1uf and 2200uf on both input and output placed between on/off and Raduino board, it reduce tuning click to nearly nothing, but that 7.200MHz Birdie is

Checked the relay Virtual VRS2H on my board is not polarised. I have some other brands, checked one I had handy a Panasonic and it is polarised. BITX40's both relays are wired opposite of each other.

it might be a good idea to just remive the rf amps before the mixer. there is too mucb gain for a 7 mhz radio. - f [email protected]> wrote:

If incoming signals are too strong to go through the receiver without distortion, you need to reduce the gain. ?The bitx40 has an audio gain control already, that happens at the tail end of the

Your first link was about amplified audio, and the second was more like what I am talking about with attenuation of RF. When a strong station comes on, they sound distortedly loud even when I turn the

Not quite sure what you're trying to do, but here's some links on implementing an RF gain control. ?/g/BITX20/topic/4238539 ( /g/BITX20/topic/4238539 )

I previously made the FLDGI CW keying circuit, and it works great. But better than that is using the rig controls for serial port PTT. Tests with the relay module and the Usb to serial adapter

You're probably right. So Matt's TX rail probably never saw power during the mishap, and none of those parts behind it got damaged. We're assuming it was a battery lead reversal that blew D7.

N9ARZ was 59 here in Coralville, IA but didn't hear me. Maybe next time. John AD0RW

The relays are polarized type, they have a magnet inside to reduce operating current. They wont operate with reversed voltage.

I have put preliminary information on my cheap Mcufriend 2.4" TFT based VFO/BFO with touch controls at vu2spf.blogspot.com More pictures and program to follow. Soon I will be uploading its video too.

I had a QSO with Don ND6T in California about half an hour early... my first one with someone using a BITX40! I'm still waiting for my BITX40, so I was running 100W. Don was fairly weak... about 43. I

Reverse polarity protection is a must. I have always put a diode in my designs. Does not cost much. First thing I did before powering up the BITX40! Raj

Please see the link given below http://www.g4ilo.com/usblink.html Thank you 73 Ameer Khan VU3SQM [email protected]> wrote: