开云体育

Gordon, The trick with non resonant antennas is to insure the lengths are not resonant.?? I never said it was easy hence Cebik? going with two one 44ft and 88Ft for 3-30 coverage. Another trick is

I don't hear a single station on 40M. CW or SSB...some digital around 7104 but NOTHING else....Is it me ??? Maybe all out celebrating Mothers Day.???? We had heavy thunderstorms roll thru here this

I hope you are testing into a dummy load. The circuit is quite stable over many reported builds. I also hope that everything is laid out in a line. - f

Allison, concerning the bifilar balun choke to supply the DC voltage to the drains of the IRF510 is one big step forward in equalizing the gain! I got a large improvement on the famous 20W G6ALU amp

Seems like the variation between radios is significant. For certain I nee to look at the power chain.? My breadboard is better behaved but there are a handful of significant differences.? The first

For what its worth Ulf Sm0cgl http://www.hard-core-dx.com/nordicdx/antenna/wire/t2fd.html

Re-reading what you wrote, I see there's nothing said about IRF510 vs RD16HHF1. Guess I was reading between the lines, as $0.50 has been given here as the price of the IRF510. My apologies. Jerry

Kees, Please put me down for one each of the Click Fix and AGC boards. I'd like a SWR board when it is available. thank you, BillK6SIK

<sigh> This reply is another reason I rarely post.? But thank you for your implication.? I was simply offering my opinion.? I now regret doing so. 73, Russ Hines WB8ZCC -- Reply to: russ@...

Hi Jerry, Yes you are right, some sound okay and others don't. At the cheap price of Electret elements, I order some from several different sources and just solder in one at a time and listen to

Increasing the caps as Farhan pointed out elsewhere would fine but then you should adjust the BFO to put the signals in the passband.? That mod however makes SSB really poor both RX and TX. While

Though many report good performance from the mike element that comes with the kit. At around $0.10 each, it's possible the quality might vary a bit between units and between manufacturers. Jerry

"address the microphone audio" Not sure what there is to address about the mic audio. I have built 5 BitXs including the uBitx and I get good audio reports on all of them, of course I'm using the

?I don't know if y'all have already done that....but writing up a little "white paper"" and putting it on the web site about little bite-size improvement steps like going to the RD16HHF1 for example,

Receiver performance has many dimensions. ?Sensitivity ?Bandwidth ?Overload performance and dynamic range. ?Stability, Especially important in the days of VFOs. ?Spurious signals, birdies and

Allison,?? Please don't get offended as this is just my 2 cents worth. Of your list, only RFParts has the?RD16HHF1. Ordering 4 for $19.00 and a dollars worth of something else to meet the $20.00

Also, keep in mind that if you plan to move from the IRF510 to the RD16HHF1,? the uBitx final should have some adjustments to the transformer ratios and such. The RD16HHF1 is not quite a drop in

Going to 150ma should be fine, so long as those IRF510 tabs are not getting so hot that it's uncomfortable to keep your finger on it. But those bias pots are very touchy once you get into the active

Kees, Please put me down for two each of the Click Fix and AGC boards. Also interested in the SWR boards when they are available. 73, Kevin KB3OMM

On Sun, May 13, 2018 at 6:11 AM, <davesters@...> wrote: > ve7cws, > What would you change about the mic? Almost every one I have talked to on > the radio, says that it has a good sounding