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Shutting down the PA? 8 messages
#homebrew
#v6
I am back after taking a long look at the schematics of the version 6. I noticed that if I don't allow the RX/TX relays to switch I would be able to totally by-pass the amplifier stages (And also most
I am back after taking a long look at the schematics of the version 6. I noticed that if I don't allow the RX/TX relays to switch I would be able to totally by-pass the amplifier stages (And also most
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By
Bill Gaylord
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uBITX Scratch Build Volume Issue 3 messages
#ubitx-help
#ubitx
#homebrew
#v5
Hello Chris Thanks for your reply, yes at the time I write this letter, I also found, that the big elco capacitor Vcc filter is mandatory. I also experiment that one 1000uF is needed. My AF amp is LM3
Hello Chris Thanks for your reply, yes at the time I write this letter, I also found, that the big elco capacitor Vcc filter is mandatory. I also experiment that one 1000uF is needed. My AF amp is LM3
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indrasung@...
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Super Charged 20 Watt SimpleSSB is on the air 7 messages
#homebrew
Congrats!!
By
Gordon Gibby
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Antuino SWR error 5 messages
#homebrew
Hallo Evan, No I connected the antenna in the RF in Port (P3) I know the RF IN - P3 port is go to the mixer stage
Hallo Evan, No I connected the antenna in the RF in Port (P3) I know the RF IN - P3 port is go to the mixer stage
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By
Sreeraj TK
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Ver 6.x of TFT-Touch based VFO+BFOs for uBitx / Bitx 6 messages
#wsjt-x
#arduino
#homebrew
#kicad
#raduino
Working,Thank You. Best Regards. Steve AB2ET
Working,Thank You. Best Regards. Steve AB2ET
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By
Steve Sawicki
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Beware - potential problem installing Nextion on uBitx v6 11 messages
#nextion
#homebrew
Interesting. I guess that saves redoing the PCB trace layout... 73, Justin B. KI5GKD
Interesting. I guess that saves redoing the PCB trace layout... 73, Justin B. KI5GKD
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By
Justin Bowser - KI5GKD
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EI9GQ 16 Watt Linear Amp Build 30 messages
#homebrew
#linear-amp
Hi Don , Yes the stage will be a new stage after the IRF 510 in the homebrew rig. This test was just to make sure that the transmit chain was working properly. I injected a signal into the RF amp (TX
Hi Don , Yes the stage will be a new stage after the IRF 510 in the homebrew rig. This test was just to make sure that the transmit chain was working properly. I injected a signal into the RF amp (TX
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By
Dean Souleles
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SimpleSSB Three Way QSO 5 messages
#homebrew
Thanks Ken , Yes indeed. Combine the SimplesSSB with a trapped dipole or an end-fed half-wave and you have a pretty nice portable QRP rig. One of our guys is already done a summit on the air activatio
Thanks Ken , Yes indeed. Combine the SimplesSSB with a trapped dipole or an end-fed half-wave and you have a pretty nice portable QRP rig. One of our guys is already done a summit on the air activatio
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Dean Souleles
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New V6 User 17 messages
#ubitxv6
#homebrew
Hello Henk: HF rigs prior to 1980’s were band selecting and exact frequency range to cover the specific band. For example, if you were on 80 meters 3.6, it would be 7.1 on 40, 14.1 on 20, 21.1 on 15 a
Hello Henk: HF rigs prior to 1980’s were band selecting and exact frequency range to cover the specific band. For example, if you were on 80 meters 3.6, it would be 7.1 on 40, 14.1 on 20, 21.1 on 15 a
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By
David Barber
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MMIC-based bidirectional amplifier (would love to hear from ajparent)! 6 messages
#homebrew
#rf
Raphael I suggest working the subsystem design before these details. Deciding how you may address 6m comes first. For the IF strip perhaps consider keeping the bidirectional amplifiers, the advanced I
Raphael I suggest working the subsystem design before these details. Deciding how you may address 6m comes first. For the IF strip perhaps consider keeping the bidirectional amplifiers, the advanced I
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By
Curt
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Homebrew is alive and well in Vienna Virginia 14 messages
#homebrew
oshpark also has a "qrp bitx tia" ...surface mount termination insensitive amplifier ... again from EMRFD and similar to the amps in the micro-bitx...nice gain block Jim
oshpark also has a "qrp bitx tia" ...surface mount termination insensitive amplifier ... again from EMRFD and similar to the amps in the micro-bitx...nice gain block Jim
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By
jim
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Help with a different take on a homebrew uBitx 3 messages
#homebrew
KD2QMZ, Name it! :-) I have a few editions of the ARRL handbook, and they are good, but nowhere near proposing a full transceiver architecture... Thanks, Rafael
KD2QMZ, Name it! :-) I have a few editions of the ARRL handbook, and they are good, but nowhere near proposing a full transceiver architecture... Thanks, Rafael
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By
Rafael Pinto [PU1OWL]
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VK3BHR LC meter inductance measurement problem 4 messages
#homebrew
Hello Mr Sarma, Thanks for your reply. I used a 100uH +/- 20% 0.3ohm toroid (Multicomp) but I did not measure its actual value before soldering it to circuit, I will check it. C1 and C2 I used NP0 cer
Hello Mr Sarma, Thanks for your reply. I used a 100uH +/- 20% 0.3ohm toroid (Multicomp) but I did not measure its actual value before soldering it to circuit, I will check it. C1 and C2 I used NP0 cer
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By
VU3KFK
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New Arduino CAT Control Library for Homebrew SSB transceiver 2 messages
#arduino
#cat
#homebrew
On similar lines I had written Arduino programs to control using Yaesu FT2000 protocol which is used by all modern Yaesu rigs. The library was announced in this forum in May 2020 and is available from
On similar lines I had written Arduino programs to control using Yaesu FT2000 protocol which is used by all modern Yaesu rigs. The library was announced in this forum in May 2020 and is available from
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By
SP Bhatnagar
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Heatsink issue 7 messages
#homebrew
#ubitx
Thank you for your reply, I finally chose two smaller cpu cooler instead of the first. I'm happy to know that the original ones were enough but, until I saw how hot was the 7805 connected to the radui
Thank you for your reply, I finally chose two smaller cpu cooler instead of the first. I'm happy to know that the original ones were enough but, until I saw how hot was the 7805 connected to the radui
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By
edoardo marchetti
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Hfsignals send ubitx on 3rd of march 13 messages
#ordering
#ubitxv6
#homebrew
#v6
Dear Jonas Sanamon, I have sent a mail for my help request to support@... Thank you for your answer. Regards, Burcak
Dear Jonas Sanamon, I have sent a mail for my help request to support@... Thank you for your answer. Regards, Burcak
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By
Burçak Çubukçu
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Furlough 40 SSB Transceiver Project 13 messages
#homebrew
New blog post and video - I added the FT857d CAT control library from Pavel Milanes (CO7WT) to the control sketch. It was pleasantly easy to integrate. Check it out: The Furlough 40 Gets Cat Control 7
New blog post and video - I added the FT857d CAT control library from Pavel Milanes (CO7WT) to the control sketch. It was pleasantly easy to integrate. Check it out: The Furlough 40 Gets Cat Control 7
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By
Dean Souleles
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Improve hackability proposal
#homebrew
Hi guys, I especially address to Mr Farhan, what about adding in the next uBITX version some pins in tactical position, eg in parallel with the IF filter, making the rig more simple to modify without
Hi guys, I especially address to Mr Farhan, what about adding in the next uBITX version some pins in tactical position, eg in parallel with the IF filter, making the rig more simple to modify without
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By
edoardo marchetti
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Obsolute 45M15F 5 messages
#v6
#homebrew
#ubitxv6
Would this be a good alternative? https://www.rf-microwave.com/en/ndk/45s15bn/45-mhz-crystal-band-pass-filters-pair-4-poles/f-45m-m4/
Would this be a good alternative? https://www.rf-microwave.com/en/ndk/45s15bn/45-mhz-crystal-band-pass-filters-pair-4-poles/f-45m-m4/
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Marko Barovic
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uBitx v6 All Inductors 2 messages
#ubitxv6
#v6
#homebrew
Near bottiom of page https://www.hfsignals.com/index.php/ubitx-v6/
Near bottiom of page https://www.hfsignals.com/index.php/ubitx-v6/
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By
Lawrence Galea
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