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Date
Re: CW Filter
I also use the Sotabeams filter. As a bonus for us tone deaf operators it includes a CW tune aid that lights an led when well tuned to a signal.
By Bob Benedict, KD8CGH · #76972 ·
Re: CW Filter
A better video for the VK3YE AGC is here and it's in two parts. https://www.youtube.com/watch?v=IQ5JEPRiPoM Reg? ? ? ?G4NFR
By Reg · #76971 ·
Re: Transmit Output Power (CW) #v5
Rob your as-is numbers are not bad on CW.? (some of us would gladly trade board with you - actually mine is somewhat simpler - except I had an even larger dip on 40m, that I corrected with a
By Curt · #76970 ·
Re: CW Filter
Hi Laurent, The Sotabeams filter is very good and saves messing about making one. I would think that it should be O.K when used in line with an AGC control. But that's a guess as I haven't got any AGC
By Reg · #76969 ·
Re: #v6 control settings for 12V fan #v6
My experience with fans and uBITX. Some fans are electrically noisy and can be heard through the audio. I used a squirrel cage fan that was the pits. So if your fan is noisy you might want it on when
By _Dave_ AD0B · #76968 ·
Re: CW Filter
Hi Reg, sounds great, as the uBitx lacks a good CW filter (the provided one is set for SSB, that is much too wide when chasing for DX stations listening up...about 1Khz, right in the audio response :(
By laurent.bury@... · #76967 ·
For Sale: uBITX V6
V6 for sale.? Unmodified, stock firmware, assembled (with cabinet), and calibrated.? I've made about a dozen CW contacts with it. No SSB contacts only listened to the SSB signal on a web SDR
By Bob WB8CAC <currently@...> · #76966 ·
Re: Transmit Output Power (CW) #v5
...and NOT* use the CW carrier.
By Joe Puma <kd2nfc@...> · #76965 ·
Re: Transmit Output Power (CW) #v5
Thanks Evan. I have done the power mod on V3 and also used different sized bias resistors which worked better for my board. My power out on CW is slightly higher then on SSB and it¡¯s not because of
By Joe Puma <kd2nfc@...> · #76964 ·
Re: Transmit Output Power (CW) #v5
Joe, To the best of my knowledge, the v5 boards have the upgrades in the sections prior to the first mixer (upgrading the 2n3904 to BFR93W) related to SSB performance.? The upgrades that are not done
By Evan Hand · #76963 ·
Re: Transmit Output Power (CW) #v5
Looking at the schematic for the V5, I understand that the way it works is that the CW key line (DC) is fed into mixer 1 along with the Clock #2 signal.? The output signal path from this is then
By Rob French (KC4UPR) · #76962 ·
Re: Transmit Output Power (CW) #v5
Because CW and SSB use different output stages and the mod he¡¯s doing is for SSB. I, sure someone here can explain it better. If you don¡¯t want to use a varing whistle use a 1khz tone from your
By Joe Puma <kd2nfc@...> · #76961 ·
Re: uBitx v6 Microphone #v6
it was simply the feedback from the speaker back into the mic, i guess. by now, i guess you have also changed the calibration of your radio. trying to listen to an ssb on a nearby radio is quite
By Ashhar Farhan · #76960 ·
Re: uBitx v6 Microphone #v6
Ok Mark, de ssb-signalen zijn goed, nu zonder licentie, ik luister on the bands, most 20 and 40 meters. The tone i hear is like the high tone you here when you start to caibrate, its much louder then
By Rene <rmvanb@...> · #76959 ·
Re: uBitx v6 Microphone #v6
No, i don't use cw, but now the problem is even bigger? i tryed to calibrate again, but the am signals here are week and the ones there are, are next to each other. So i tryed yester day to
By Rene <rmvanb@...> · #76958 ·
Re: Transmit Output Power (CW) #v5
why? he already did the test with CW which will give the maximum power out vs a whistle which will vary and may have a complex signal component and reduce how much power you see on a non-peak reading
By Matthew Chambers NR0Q · #76957 ·
Re: Transmit Output Power (CW) #v5
Do the same test but in SSB. Give a steady whistle. Joe KD2NFC
By Joe Puma <kd2nfc@...> · #76956 ·
Transmit Output Power (CW) #v5
I've collected all my parts to do Allison's transmit chain modifications (BFR106, 2N2222, 11 ohm resistors...).? I'm ready to go... but I wanted to QC my output power first.? Now, I have noticed on
By Rob French (KC4UPR) · #76955 ·
SVHFS 2020 Registration Through April 15th
SVHFS Conference 2020 Registration...The Clock Is Ticking Pre-registration is open through April 15, 2020. Please use the registration form on the conference web page here.
By Robin Midgett <K4IDC@...> · #76954 ·
Re: Sasquattch Stomp Reminder
Many Hams think that too. And, I generally manage to get help on 2 meters or 440 - all I ever hear on 11 is cursing and people trying to "stomp" on each other. With a good quarter wave vertical, even
By Alex Netherton · #76953 ·