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We have not worked on the site, mainly because I was spending time on my FDIM talk and now our club hamfest is Saturday and Al and I are working on the book. One chapter is a different mag loop and

Jack, any luck with your website? I am starting to take a serious look at the JackAl board, would love to find out more info before buying...as in the BOM and Prices, etc. - Rich WB2GXM

Hi Richie Were you able to get the 22ohm 1 watt resistor added?? can you share the exact place you soldered over from the gate to target solder point.? That is where it is not clear. Sajid

I have been pleased with this unusual AGC circuit as it nicely removes the top of large signals.? VK3YE has suggested measuring current in parallel with the LED that drives the AGC action, but I

Hi Howard. I am about to start building the minipa70 kit;? have ordered also irf520s.? any pictures on how to mount them will be helpful.? I did found the video below very helpful but he skips on

Has anyone experimented with the Antuino as an SWR meter? I have noticed it reads consistently high, even after repeated return loss calibrations. Using a set of calibrated dummy loads, I get these

Hi, Just added to the files sections an updated version of the KD8CEC Nextion code for the 5" screens (Basic and Enhanced). (Only the 5" Enhanced has been tested, I don't have a 5" basic) This work is

Back to topic -- I see it uses a LM386 output with a JFET input conditioning stage.? A MOSFET is across the differential input of the LM386 to provide attenuation.? audio is sensed by a diode, that

As we almost started to debate this, ubitx works with no agc, and somewhat better with audio AGC. Glad I figured out finally the vk3ye agc, its nice enough. Those adding the jackal get something even

Mad is right. Just turning down the volume is good enough for the majority of *Bitx* owners. And how designer meant for this minimalist rig was meant to be used. But if you got the gain way up to hear

Or…. Just turn the volume down. Sent: Tuesday, June 11, 2019 2:04 PM To: [email protected] Subject: Re: [BITX20] AGC Circuit for uBITX Featured in July 2019 QST Magazine If in your location you get

If in your location you get stations you want to hear that are strong enough to still sound distorted when the volume control is turned down, then you do need the dynamic range that RF attenuation

Hi, I have just completed a build using the case designed for the 3.5 inch nextion.I did carefully with a counter sinking bit take off the minimum of paint surrounding the antenna,and front jacks. I

Thanks to all for confirming.? Now to get out the dremel tool. 73 Jerry NY2KW

Ravi, Joe - good info - I remember doing something to expose some metal on the nice case. remember this is a DIY project -- Sunil would be happy to have us expose some metal wherever we deem

The advantage of the JackAL is that it is a true AGC, controlling the gain of the AF and RF stages of the radio… and thus preventing overload and distortion of the RF stages before the audio gain

I have done this. Using a dremel I grinded around the screw holes from inside for all the case parts and grinded the holes where jacks, pots, antenna ports connect. I did notice a before and after

Hi Jerry, Was just reading this: https://petetest2017.files.wordpress.com/2018/11/grounding-modification.pdf Hope this helps? Ravi/M0RVI -- I'm here to add more value to the world than I'm using up.

Just got the beautiful, high quality UBitx case for 5: Nextion and assembling.? One thing I notice is that for the many panel mounted components (pots, Mic, Key, Power, etc) there is no ground to the

The JackAl circuit has both audio and IF AGC, is Open Source, and designed for the ?BITX. The manuals can be downloaded from QRP Guys. Anyone who wants to build it is free to do so. See attached.