Maybe this? Have a look at Errors and learning with Bitx40 just a few topics down . . . F- Subject: I only received the audio from an AM radio. The frequency changed but nothing else was heard. Soluti

#bitx40help #ubitx #filters #bitx20 #bitx20help

“all over the bands. it dosent matter if i am on 3,5 or on 28 mhz. this station is over 100km from me” Something else is wrong. Sounds like a bad solder joint that is acting like a diode demodulation

#bitx40help #ubitx #filters #bitx20 #bitx20help

use the linked calculator and try making a band stop filter , say from 1 to 2 MHz It works like trap and you can manage the enclosure of ubitx should better be metallic and the body grounded. the filt

#bitx40help #ubitx #filters #bitx20 #bitx20help

Hello everybody, i have a problem with my ubitx on receive, i am receiving an AM station who broadcast on 1530khz all over the bands. it dosent matter if i am on 3,5 or on 28 mhz. this station is over

#bitx40help #ubitx #filters #bitx20 #bitx20help

Thanks all for help! The biggest problem was RF getting back into the radio. The dummy was to close to the radio. Have to sort out one more thing, the input for my souncard for digital radio is parall

#bitx20

Hi Dexter, ZL to VK on 20M seems to come up out of the noise in mid afternoon AEST, a few hours before sunset, but away fades rapidly, that's the way it generally seems to me anyway. If you search psk

#bitx20 #js8call

+1 for Dean's (KK4DAS) approach. (1) CAT control USB cable drives both freq and TX/RX (PTT). (2) Audio patch cables drive the audio between laptop audio i/o and uBITX i/o. The simplicity and reliabili

#bitx20 #js8call

Werner, I reread your post. Since the RX audio is perfect, the hum could be coming from either the mic input or the power supply due to higher current draw on transmit. Do you get the hum with the mic

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Hi Werner, It sounds to me like the problem could be the opposite, a ground loop where there shouldn't be one; maybe caused by the enclosure or standoffs touching something it shouldn't. Try to remove

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Thank you to all that have relied! Neil

#bitx20 #js8call

We have a wiki page on this topic you might find helpful. https://groups.io/g/BITX20/wiki/Digital-Setup Like all wikis, if you have helpful information to add or find errors that need correcting it wi

#bitx20 #js8call

I wonder, Ray: how is it to ZL? Dateline having some effect? :) 73 Dex ZL2DEX

#bitx20 #js8call

I went straight from the uBITx headphone jack to the mic jack on my laptop, and from the headphone jack on the laptop to the mic jack on the uBITx. I had to adjust the levels for both the mic and head

#bitx20 #js8call

Neil, I too used a easydigi and a RS232 board for ptt. My site should have some interfaces coming soon that will be in and around 2, I will post more details on that later. Below is what I used for my

#bitx20 #js8call

I did much the same, easydigi, and a small 4 port USB hub mounted in the back so that I only have one USB cable to the raspberri pi running the FT8 software. KD8CEC firmware with Nextion display I mos

#bitx20 #js8call

On my uBitx I used a "Easy Digi" interface I got off eBay for a few bucks, and USB cat control with the KD8CEC firmware. Works very well. On Mon, Sep 9, 2019, 7:47 AM Neil Tolman via Groups.Io <k1nbt=

#bitx20 #js8call

For any using BITX for js8call: How have you interfaced with your computer. Thank you. 73 Neil K1NBT

#bitx20 #js8call

Evan, I am testing with a dummy. It sounds like there is a lose ground somewhere but I just can’t figure out where. The issue started when finnishing the enclosure. I did test the board on arrival and

#bitx20

You might be getting RF back into the radio. Does it happen into a dummy load? 73 Evan AC9TU

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Forgot to say, I check my signal with my other rig.

#bitx20