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Re: Pout drops on 20m
Do you mean that it starts high and then a few seconds later it drops ? Or do you mean that the higher the frequency = lower output ? With 3x BS170 @ 9v you will typically see:- 1.1w to 24Mhz 650mw
By "andyfoad@..." <andyfoad@...> · #1406 ·
Re: Handheld U2 v2.02 Boxed
Indeed, very nice. cheers, Graham ve3gtc
By Graham <planophore@...> · #1405 ·
Re: Pout drops on 20m
Hi Francesco I noted a drop in power after 10MHz in my tests but didn't worry about it, not 50% at 14MHz but a full drop 50% at 18MHz which the rises to give more power on 28MHz. It is a simple
By g3zjo <g3zjo@...> · #1404 ·
Re: Handheld U2 v2.02 Boxed
Nice and neat, and compact. Thanks for sharing. 73 de Andy
By "andyfoad@..." <andyfoad@...> · #1403 ·
Handheld U2 v2.02 Boxed
OK Slave Driver The quickest way was a Web Cam video which does give an accurate impression of size. Thoughts were:- Small size, light weight for portable use, ergonomic 2 thumbs operation of the
By g3zjo <g3zjo@...> · #1402 ·
Pout drops on 20m
To forum, help me please. Have a question. I notice that on 20m the power output drops dramatically (~50%). Necessary fine-tune the LP filter? Or are other problems: eg. DDS-VFO? TKS Francesco,
By "cecco.delprete" <hb9afz@...> · #1401 ·
Re: Picnic portables and GPS
Yes and with the U2 being capable of knowing where it is (although I might be unsure) and inserting the QRA Loc. automatically. I am looking forward to the Trimble GPS compatibility being
By g3zjo <g3zjo@...> · #1400 ·
Re: Picnic portables and GPS
I think that's the key to it all. Throw up a wire in the nearest coconut tree, leave a U2 running and come back later after the beer has run out to check the results. Said in jest but
By "andyfoad@..." <andyfoad@...> · #1399 ·
Re: Picnic portables and GPS
LOL! Maybe this one would be suitable for Eddie's hot 6m PA ..? http://tinyurl.com/ovx4bqw ;-)
By "andyfoad@..." <andyfoad@...> · #1398 ·
Re: Picnic portables and GPS
Nah! It's got to be one of these to house it... Room for some boiled eggs and soda pop too :) http://i72.photobucket.com/albums/i175/hantercans/picnic.jpg Philip G4JVF
By "Philip" <pcteee@...> · #1397 ·
Re: Picnic portables and GPS
Andy et al I love QRSS on holiday. Don't forget that this whole kits thing came from my Caribbean holiday in 2009. 2 hours of crazed building in the middle of the night, before rushing to the
By Hans Summers <hans.summers@...> · #1396 ·
Re: Picnic portables and GPS
That is an extremely generous gesture, and I appreciate it. Of all the groups I subscribe to, this is the one that ticks all the boxes for a 'Happy Family'. There is information, help,
By "David Atkins" <kelley@...> · #1395 ·
Re: Picnic portables and GPS
It's why I also like SPRAT. Always good to see how others innovate their unique contraptions ;-) Come on - hurry up ! I've got a few ideas, anything could happen in the end. I was hoping to have
By "andyfoad@..." <andyfoad@...> · #1394 ·
Re: Wooden Box
Ooops, I forgot. I hope that this is working now: https://docs.google.com/file/d/0B8b6bnNJiDdQa1p1aGdMOUFIc2c/edit?usp=docslist_api But it is not a U2 :-) 72 de Hajo --- ... indessen wandelt
By Hajo Dezelski <dl1sdz@...> · #1393 ·
Re: Wooden Box
Wooden is no good, its got to be fire proof for when you try to run it on 50MHz.:-) Eddie
By g3zjo <g3zjo@...> · #1392 ·
Re: Picnic portables and GPS
I do like to see the various approaches to boxing the same project. I have just put my U2 in a box, I will get round to some pictures and a few words in time. The Picnic Portable has sparked the
By g3zjo <g3zjo@...> · #1391 ·
Re: Wooden Box
Unfortunately I cannot see the photo. Yahoo groups has blanked it out :-( 73 de Andy
By "andyfoad@..." <andyfoad@...> · #1390 ·
Wooden Box
Andy, Something like that? 72 de Hajo --- ... indessen wandelt harmlos droben das Gestirn ... http://hajos-kontrapunkte.blogspot.com/
By Hajo Dezelski <dl1sdz@...> · #1389 ·
Re: Picnic portables and GPS
Hi David, Yes I suppose it all depends upon how the individual likes to design their gear. Personally I like the all in one approach where ever possible. I hate carrying box, batteries, cables,
By "andyfoad@..." <andyfoad@...> · #1388 ·
Re: Picnic portables and GPS
Hi David Nobody wants to be at the mercy of those suppliers. PCB's manufactured in one week? Pffft. I'll arrange for the v2.02a chips to be sent to you separately... 73 Hans G0UPL
By Hans Summers <hans.summers@...> · #1387 ·