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Hi, I just got my license a month ago and have been sitting on my bitx40 until I got it. I also ordered a PLJ6-LED frequency counter off of ebay to mess around with, as seen here. (

If you are seeing 7 watts out, sounds like it is working. ? ?However: Setting RV1 to the top of its range (5.4v?) could easily blow the IRF510. ? Just slowly bring it up to 100ma of drain current

Where are you measuring the 310ma? ?You should be measuring just the current through the PA 12v line into the IRF510 when setting the bias.

Hi, Just received my BITX this week and put it together..... receiver & display works fine. ? Receive current is 130ma. -The alignment section says when RV1 is fully clockwise (PTT keyed) current

For what it's worth, I placed an order on Dec 23rd. and it just arrived this week. I was unable to track with India Post, as each time I entered the tracking number, I received a "try again later"

Not weird. ?Especially if there's a lot of copper on that ground pin sucking away the heat. ?Everybody has trouble cleaning solder out of through-holes, the surface tension of the solder does a good

I tried tracking on the web, could see it was handed off to MumbaiAir on Dec 31. ?The USPS website claimed it didn't know about any IndiaPost tracking number. ?I checked at a local post office

Funny you should ask about the adequate antenna. My elmer is extra class and I am a general. He gave me a homemade G5RV jr. for Christmas and I had to figure out a choke balun to get a low swr with my

As Bill says... Maybe. Probably ok, but maybe not. I would only add to try touching the heat sink after you have talked on the radio for 5 minutes or so. It should be warm to the touch but not hot. If

Hey, Jerry. You should have long since gotten your rig -- you're right. Something ate it. Maybe it's time... You are also right about your comments regarding the antenna and the PA. Unfortunately,

WOW! WHO Knew? Where do I get the NEW library and how do I know what ino file it attaches to? A bit(x) confusing to me B Sent from Outlook<http://aka.ms/weboutlook> ________________________________

And a minimalist RF probe, such as that N5ESE circuit. ?And a low pass RC filter to measure the quiescent DC voltage. ?I'm willing to assume they have a voltmeter, that costs a buck here in the USA

Rich:? Maybe.? Just try running it at 20 watts, checking the temp of the heat sink.?? If it gets too hot to touch, then you need more heat sink.? Or a little CPU fan aimed at the heat sink.?

First off, you are really close to having this thing work properly. ?And I suspect you are learning quite a lot. I assume you have an adequate antenna. ?Can they hear your 6 or 7W CW transmitter?

Bourns is the standard...which is probably why the Chinese copies mimic the form so much. What you have found would retail for $US40.00-60.00 at DigiKey or Mouser. Probably BGMicro got a few as

Hi Noel! You can sure try. Depending on the DC/DC converter you have it might work. In my case the model I had on hand (for which I've posted the link in my previous post) generates a lot of switching

I haven't been able to make a contact yet, and I think my PA isn't putting out enough power. Awhile back on the subject of bad audio, Farhan suggested I ask someone for a signal report. No one I asked

And that STILL doesn't answer the original question.

That's a nifty design, Ryan! I would suggest you put power and other input/output connections (antenna, external speaker/headphones, etc.) on the *rear*, rather than on either side. It will make for

2 photos side by side. And nobody wears shoes in our house unless they're going down to the basement. RichKC8MWG