开云体育

Usually a tuner will increase noise, at least atmospheric noise, as the tuner creates a match between the receiver and the antenna. A matched antenna shouldn't "tame" the noise. If that is actually

> > I would love to compete but I don't think UK stations ,can tx over 7.200. > rgds John 2e0eii > > > > > 7277 kHz in North America, *7177 kHz elsewhere.* >

I would love to compete but I don't think UK stations ,can tx over 7.200. rgds John 2e0eii

Raj jee, Perhaps we need additional gain so that control can work , say 1 or 2 dB on either side. Regards MVS Sarma wrote:

Mic gain control: Remove R62 and R63 Add a 1K preset or Pot .. extreme end connections to PIN 2 - emitter of Q6 and ground. Connect the center pin to + of C62. If the gain is increasing in the

Hello Norm. Mine needs every bit of mic gain I can't think of any instance where less would be better.? Is yours too loud or do you have distortion? I have one of those mic pre amps and compressor

I wasn't really trying but this is still only the 4th day that I have had my ubitx. Using phone I was able to work stations from coast to coast of the united states. I did it on the 80 meter band. and

BITX QSO Afternoon/Evening, Sunday, April 22, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere. Join us as we make contacts from BITX40 to BITX40 on 7.277 MHz in 40 meters! This

That's right, george.

Daft question gang, but how come the ubitx hasn't got a mic gain control? Norm. Vk5gi McLaren Vale South Australia

Nice one Farhan, looks like a 300/75 TV balun. Raj

Yup, we've been through this. If you treat the IRF510's right, you get the results that WA2EBY does.

No, it's not a big difference in speed, that is until you consider that the display in this radio isn't the Arduinos only task. I haven't started on this all just yet, but from previous projects.? In

Even if you drive the crap out of those power supply/motor switch IRF510’s… without a lot of other mods they will still only put out 5 watts. We’ve been through this… Dr. William J.

Drive pots. RV1. See uBITx.net for the writeup. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC Staunton,

The first post in this thread describes Howard simple solution to even out the power across bands: ? ??/g/BITX20/message/46616 A little bit more of this same cure applied to

I heard that some guys are switching in/out bias control pots for each band and adjusting them to maintain the same power on all bands. satish.vu2snk1@...> wrote:

radio is sold

How you propose to control the drive to be of 5 watts on all bands for your 70 W amplifier As the uBITX is giving much more power out put on lower bands than on the higher

Just reading this initial post again. I was confused by it because its so different from my experience. I might have different conditions though. My antenna is balance and is a loop. A full loop on 80