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Monday, October 22, 2018

Ian Keyser G3ROO on UK TV with his Spy Set Rigs (video)

Me at the keyof one of Ian's spy sets -- ten years ago?
Check out this nice UK TV report on Ian G3ROO and his spy set radios: 

https://www.itv.com/news/meridian/2018-10-19/daring-spies-who-broadcast-from-behind-enemy-lines/

And here is Tony Fishpool's report on their excellent adventure at Friedricshaffen Hamfest 2018. 

http://www.fishpool.org.uk/friedrichshafen.htm

Here are some of the SolderSmoke blog posts on the activities of Ian and the Dover Constructors Club. 

https://soldersmoke.blogspot.com/search?q=G3ROO

Sunday, October 21, 2018

The Radio Doctor of Montreal



So much radio wisdom in the words of the Radio Doctor of Montreal. 

Saturday, October 20, 2018

Pete's New Transceiver with Heathkit Filter and WSPR (Video)



Another beautiful rig from Pete. Inspiration for the winter building season.  More info on his blog:

http://n6qw.blogspot.com/

We hope to discuss this and other projects in the next SolderSmoke podcast, hopefully next Saturday. 

Wednesday, October 17, 2018

M0HYT's Through-Hole (No Surface Mount) uBITX


That's the spirit! I like how Peter M0HYT took the uBITX schematic and built his own, his way.  When you build the rig yourself, if problems arise (spurs, harmonics getting past filters) you are in a much better position to fix the problem. I'm afraid that sometimes those buying an already-assembled board just feel aggrieved if the purchased item is not fully within specs.     

M0HYT posted this to the BITX20 group (this past summer): 

I have just built a uBITX with standard components (no SMD's) from scratch on a PCB I designed - it works well.  I have now designed another PCB which incorporates the Arduino NANO and the the Si5351 shield and I'm just waiting for the PCB's to arrive and then I will start assembling.  I made some changes to the circuit to allow for a dynamic microphone and the use of screened TOKO cols for the 30MHz lowpass filter, I also changed the coupling arrangement to the 45MHz filter.

I have attached a picture of the original PCB and a PDF of the new layout incorporating the Arduino and Si5351

Maybe one day I will play with SMT but for now standard components are still easily available !
 
73's - Peter M0HYT



Tuesday, October 9, 2018

Falcon 9 Launch, Landing and Sat Deployment Video



Very cool video from Space X.  I like how they have the time-line along the bottom and the telemetry in the upper right.  This is the first time they brought a first stage back to Vandenberg AFB.  I hope we get to watch the launch of the Indian Cube-Sat in November. 

Monday, October 8, 2018

VU3XVR's EMRFD TIA HB TRANSCEIVER

VU3XVR-40m-CW-TXVR-Homebrew-5W-QRP-Transceiver

Ram did a beautiful job on this 40 meter rig.    You can read about this project here: 

https://vu3xvr.blogspot.com/2018/10/homebrew-5-watts-cw-transceiver-using.html
Designer: Douglas Bowman | Dimodifikasi oleh Abdul Munir Original Posting Rounders 3 Column