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

#homebrew #v6

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

#ubitx-help #ubitx #homebrew #v5

Congrats!!

#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

#homebrew

Working,Thank You. Best Regards. Steve AB2ET

#wsjt-x #arduino #homebrew #kicad #raduino

Interesting. I guess that saves redoing the PCB trace layout... 73, Justin B. KI5GKD

#nextion #homebrew

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

#homebrew #linear-amp

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

#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

#ubitxv6 #homebrew

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

#homebrew #rf

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

#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

#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

#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

#arduino #cat #homebrew

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

#homebrew #ubitx

Dear Jonas Sanamon, I have sent a mail for my help request to support@... Thank you for your answer. Regards, Burcak

#ordering #ubitxv6 #homebrew #v6

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

#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

#homebrew

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/

#v6 #homebrew #ubitxv6

Near bottiom of page https://www.hfsignals.com/index.php/ubitx-v6/

#ubitxv6 #v6 #homebrew