Sajid : I am using a Koss CS-100 Computer headset on my BITX40 with excellent results. These cost less than $US20. I have tried a couple of other inexpensive Computer Headsets and have found that

Hi Manoel, My group has had a lot of fun working on this project. With winter upon us (lots of snow), and living up in the mountains in the northwest U.S., getting together for classes is a

The RD15HVF1's should be operated at not much more than 12v. At 12v, the IRF510's would survive just fine with no antenna connected. That's an infinite VSWR. So not obvious that this is a solution to

See my signature below for a link to join the Discord. For all intents and purposes, it's the same as Slack. 3-5 people are usually active, 51 people have logged in at one point so far. Cheers! --

Jack and All, attached 2 pix of remote display. Note that I used DuPont wires that came as a flat-group, not the helter-skelter loose wires. Probably helps reduce noise to some degree.

good call Ed. The GM (General Motors Employee/retirees) net operates on 7.277.5 - should NOT be a problem but can be used to check propagation during the week. GM HF Net Mon thru

On same site I found these, made for 30 MHz RD16HHF1. Sooo I bought 10 of them, plan to try in Bix40 first. Data sheet even shows a reference amp design, and they are 12 volt like the other one. If it

Thanjk you Michael Let me check your suggestion.

I sent a mail to hfsignals they said the next round is in about 2 weeks. I also ordered on the 23rd. -- David N8DAH Kit-Projects.com

Original Hiland 0-30V 2mA - 3A Adjustable DC Regulated Power Supply DIY Kit $ 5.22 Original Hiland 0-30V 2mA - 3A Adjustable DC Regulated Power Supply DIY Kit

Is anyone up for maintaining a database of Bitx by serial no. to include purchaser, ordering, shipping and delivery dates, and info about subsequent issues and modifications? For info, mine was

It is very frustrating. I don’t have any watt showing up in my power meter even in the 2w scale how do I know I blew the fets again? When ptt i get 0,5amp and adjustin It is too sensitive. Even one

I bought two 1800s, they would not fit my ubitx pcb at the bottom of the case by a fraction of an inch because of the orientation of the raduino and heat sinks on the short axis of the card, they must

I just received 3 of the MCUFriend 3.5" TFT displays purchased from "accecity2006" on eBay. One of the 3 worked correctly; one was cracked and another one was not displaying text correctly. -- John -

Interesting comments thus far regarding IRF510 failures. Power supply current limiting (2.5 to 3A) seems to work. Bias voltage shutdown on high current (3A) seems to work. Driver impedance to

Contact the seller and have them replaced. Ken VA3ABN

Last tracking information for mine was „2017-12-19 00:19 Germany, FRANKFURT/FLUGHAFEN, Receive item at office of exchange (Inb), Air“ On 29th I got a letter from local customs office (Zollamt)

It is quite possible that the vendor is selling slightly defective culls from the production line. Reputable manufacturers clearly mark such items to prevent them from being sold as fully working

John My experience with high density displays is not any better. I have 5 of the small 0.92 inch displays but have not been able to get any of them to work. These are TWI or I2C interface and my

Have done business with same person....the way they are packed and handled by China mail, it is a miracle that anything makes it thru to the US....Mine made it okay......so far!!! Knock on lotsa