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Allison We do have several group members who have not yet purchased any BITX of any kind, but are hanging around and using our group for mostly social purposes. Their stories about search-and-rescue

Allison, I used a Si5351A in a 20/30/40 meter receiver I recently built. The crystal filter frequency was 9 MHz. So my LO frequencies were 16.0-16.3 MHz, 19.0-19.15 MHz, and 23.0-23.35 MHz. I used low

Hats off to Raj, looks like great work !!? Can't wait to see the equivalent to the four "uBITX Unfiltered" plots Warren presented earlier?Aug 28???#58016 (

This is truly an impressive bit of detective work leading to this solution. Is it reasonable to assume that the 45Mhz filters are wide enough that purchasing filters that are from different batches

Yes and no Nick.? The parts either side are matching netwoeks and not required based on results. Can you wait for instructions?? Your trying to make simple complicated. IF you have a filter to do it

---> 45mhz crystal filter

Topic wander extreme,? example, we have.? Babble we must!

Ah, yes I see that, Y1 is just the 45mhz crystal. , but what bout all the other components around the actual crystal? The inductors and capacitors too. So when I talk about a complete 45mhz filterIi

On Wed, Sep 5, 2018 at 05:58 PM, Fanima Dekoi wrote: The way I am understanding what I've read on it so far, it would seem the simplest solution to the worst of the issues would be just to tear out

On Wed, Sep 5, 2018 at 05:54 PM, Nick VK4PP wrote: Would it not be even better to then implement the complete 45mhz filter prior to the mixer? See the device on he board labeled Y1, that is a complete

The way I am understanding what I've read on it so far, it would seem the simplest solution to the worst of the issues would be just to tear out the pcb traces between the relays and the ends of the

That's what I am asking: would leaving in the R and C disrupt the circuit less?

I suggest looking at these:

Hi Allison. Thanks for the explanation, I see where I was confused now... So is a?TOYOCOM 612S07? just a crystal, a filter, an oscillator? can find much on that part... Would it not be even better

Farhan, Testing says buffers work The SN74AUP1T04 inverter one per package (4 pins like the mmbt3904s) or the 74LVT04 (6 per)work well. I can do that with transistor or Fet but then I need bias and

Nick, Seriously?? ?The easy way is remove the part.? To put it inline you have to cut a trace, no?? Sure you could? but why? Could someone with some technical understanding give us a quick

Gee, I grew up with Lafayette radio and Harrison radio so that goes well back over a half century. Never mind other places like that. Pretty much post WWII the industry for parts and radios existed.?

Du machts einer Witz ??? ?Perhaps a stone in a a settled pond.. and interference patterns will radiate..

a 45mhz crystal is a stone....