Re: Dummy
Diz has a nice kit for an inline SWR/Power indicator,? $12, good up to 100W. If we had a couple spare analog pins at the Raduino, could use that for sensing. http://www.kitsandparts.com/bridge1.4.php
By
Jerry Gaffke
·
#36987
·
|
Re: Rugged Case Options?
#ubitx
Ordered this box a rugged case option.
By
mikael.madsen@...
·
#36986
·
|
Re: Dummy
Nice. I assume they are 1W parts. With shorter leads, might work better at VHF if that's of interest. From what I see on Mouser, the surface mount parts are cheaper than the old style radial leaded
By
Jerry Gaffke
·
#36985
·
|
Re: Status of Orders
Mine ordered on the 9th was shipped on the 15th and arrived on the 18th one day earlier that predicted. I'm the one who came home from work and found my uBitX wrapped and under the Christmas tree. I'm
By
ekelley
·
#36984
·
|
Re: Status of Orders
Hi Joe, Same situation here..Placed order, got reply from PayPal, but no acknowlegement from HFSigs..There doesnt seem to be any link or address to email them to find out the status either..So keeping
By
K9WIS
·
#36983
·
|
Re: Dummy
Jack, Thanks. I really need to make time to read your books. I am sure I will, once I actually start playing with the Nano. Thanks again. Marco - KG5PRT jjpurdum@...> wrote:
By
M Garza <mgarza896@...>
·
#36982
·
|
Re: Dummy
Yep. I'm away from my system, but you may have to redefine a pin or two since the original DL in the book used a 16x2 LCD rather than an OLED, but it should be too hard to figure out. Jack, W8TEE To:
By
Jack Purdum <jjpurdum@...>
·
#36981
·
|
Re: Dummy
Jack, Chapter 6, Dummy Load, Pages 119 - 130? Is that correct? Marco - KG5PRT jjpurdum@...> wrote:
By
M Garza <mgarza896@...>
·
#36980
·
|
ubitx - Possible to receive 630 meters?
#ubitx
Hi, I will be putting my ubitx together after Christmas but was curious if it is possible to modify it to receive 630 meters??? I already plan on building a lpf for 160 meters, so I will build one
By
M Garza <mgarza896@...>
·
#36979
·
|
Re: Dummy
The diode doesn't matter much, but we wanted it to have a breakdown voltage of over 250V since some fairly hefty RF could be coming through. The code is in the Projects book and can also be downloaded
By
Jack Purdum <jjpurdum@...>
·
#36978
·
|
Re: Dummy
No, it's not meant to be left in line, as it sucks up all the power and is not a "sampling" wattmeter. Peter Parker had a really simple sampling as a tuning indicator using a toroid, a couple of turns
By
Jack Purdum <jjpurdum@...>
·
#36977
·
|
Re: Status of Orders
The nice fellow in the DHL truck was just here in Springfield, IL. My Paypal account says I also ordered on December 10th. 12 Days to my door from the other side of the world. Not too shabby! Tim
By
Tim McDonough N9PUZ <tim.n9puz@...>
·
#36976
·
|
Re: Amateur Radio Roundtable chat with Farhan 12/19
Future projects would be good
By
Trent Trent <vk7hrs@...>
·
#36975
·
|
Re: Dummy
Thanx [email protected]> wrote:
By
Trent Trent <vk7hrs@...>
·
#36974
·
|
Re: Dummy
Have u got the sketch for that Jack and also can any other diode be used [email protected]> wrote:
By
Trent Trent <vk7hrs@...>
·
#36973
·
|
Amateur Radio Roundtable chat with Farhan 12/19
For those interested the?Amateur Radio Roundtable chat with Farhan? from 12/19 is available on YouTube at https://www.youtube.com/watch?v=sEQNAekjkNk&t=2662s? Very informative about the uBITX?
By
DuWayne Schmidlkofer
·
#36972
·
|
Re: Dummy
We tested it at 200W for 5 minutes without any damage or charring. The oil, however, gets pretty toasty at that power level. The code is little changed from that in the Projects book, which is
By
Jack Purdum <jjpurdum@...>
·
#36971
·
|
Re: Dummy
We used 20 1K¦¸ metal film resistors connected in parallel. They are linked like this: it is less expensive than the DL shown in the Projects book, which used brass sheets. Jack, W8TEE To:
By
Jack Purdum <jjpurdum@...>
·
#36970
·
|
Re: In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
Thanks for your help, John.? I was very surprised at how far the noise floor dropped once the transformers were added.? As much as I want to get the receiver working, I can feel a strong pull down
By
AndyH
·
#36969
·
|
Re: Cw only
Jerry --- THANKS for the information. Some day I'll be retired soon and be able to do a lotta more things.... gordon Well, I haven't done it either. One crystal might be worth trying, filter shape is
By
Gordon Gibby <ggibby@...>
·
#36968
·
|