开云体育

Put a resistor of any value between 1-10K in series with center lead of volume control and see if that stops it. Raj

Must be following this group! Raj

Hello,? I am having problems with my bitx40, whenever I listen in there is a very high pitch squeal,? and you can't hear actual radio,? and if you touch the potentiometer, other sounds can be

hello Jim, have sold this radio ?? all best from in3izq danilo

The SMD AD8307 was selling for two dollars on mouser, then suddenly upped the price. - f [email protected]> wrote:

Tacking an AD8307 into a uBitx between the 12mhz crystal filter and the demodulator could make it useful as a spectrum analyzer.?? Given the better crystal filter and the higher first IF of the

jerry, we need 80 db dynamic range for useful work with specans. at 6db per bit, this pushes for a 14 bit dac or better. these, including thr rtl-sdr family are hardly useful. for a radio amateur, a

I was assuming the Antuino would have a set of front end filters for each region of interest. Though the 25mhz IF is kind of low for this to be convenient. Arv's DC receiver as a spectrum analyzer is

And if it were to become by possibly various way a radio museum or the items were to be a radio museum? I wonder too if there is not someone who would want to be the owner of such a collection in its

I apologize if this is a bit morbid, but the mother of all estate sales on Ebay looms in the future. Mike K5ESS Sent: Friday, December 28, 2018 9:22 PM To: [email protected] Subject: Re: [BITX20]

the challenge would be to eliminate the if image. this could be done when you sweep to both sides and eliminate the image reading in software. here is an example : 1. lets imagine that there is a

Bob: That's not my shack. It belongs to George Ulm, W9EVT. Everyone I show the picture to says it's a remarkable collection. No, what's remarkable is his wife and that he's still married! Jack, W8TEE

But wait...? There's more! ? ??https://www.qrz.com/db/W9EVT He's an equal opportunity collector. I saw my long lost piece-o-crap Hallicrafters S120 in there, about 10 down from Jack's photo, top

I ship all over the world and have not had any issues [email protected]> wrote:

RE: This is too many radios... Inline image Jack W8TEE Now, that is worthy of a feature article in QST. I have to wonder how you find the time to spread around the operating table/s for keeping those

The radio has been SOLD! Thanks, Jim

The audio chain is just the mike pre-amp at Q12. A good start would be to check for the DC voltages that Randy gave us. Key the mike, but no need for audio into the mike. Next step is to do Allard's

It already is a simple SA. Just shut down CLK1 coming out of the SI5351. Includes a tracking generator at CLK0/P4. Jerry, KE7ER

That list of part numbers is all surface mount, appropriate for? the board design that Kees did. My way of encouraging somebody else to take up producing the kits. Here's the two threads relating to

This could easily be turned into a simple SA. I’ll bet Kees already has the boards mocked up… Sent: Thursday, December 27, 2018 10:28 PM To: [email protected] Subject: [BITX20] Antuino - the