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On Fri, Feb 1, 2019 at 09:35 PM, Tom, wb6b wrote: I think that would be a cool way to build a SSB transmitter. I've been doing some reading as I'm investigating the possible use of a FPGA for creating

On Thu, Jan 31, 2019 at 08:05 PM, Dave Space wrote: o my results with RSP1A are interesting transmitting at 7.150MHZ into a 40 db attenuator I was getting up to -55db on the RSP_SAS Spectrum analyzer

Really good question.? When I was working on my receive signal issues I found those resistors were attenuating my signal a lot in the receive path,? I tested with and without them and I got a better

Raj, First of all I want to thank you for always taking time to explain.? i am learning a lot from you through this forum. I do have a question on the comment that on message #64580: "Most spurs are

This project has run it's course and it's time to move on to the next one. For sale assembled ubitx ver 4.3 with nextion display. I built this one over the past 6 months. It was my testbed while I

Question you have two big resistors to right and left of new L% and L& what are they and for and type?

To tag onto what Jim just said, last year I sent a ham an encoder because he didn't have one and I had a bunch of them. The encoder only cost me about $1, but the postage was $3.50, plus the time to

Ask the wrong question, get the wrong answer. Sheesh. Sure, many commercial radios today have plastic cases... but the RF circuits inside are generally incased in metal boxes (or something

I don't think that's going to happen, given the 10% domestic postage increase here in the states last week. I acknowledge that we still have perhaps the lowest domestic postage rate in the western

Actually meant high pass filter into the chain.? Maybe add another filter in the transmit path right after the 45MHZ 15khz bandwidth filter Possibly somewhere before C20 on the v4 board (40MHZ high

Thanks Raj.? I already replaced all 5 relays just to be safe with axicom ones and now also the L5 and L7 fix.? Would it be possible to add a low pass filter into the transmit chain somewhere to

Peter, I should, then, feel sorry for wasting your funds??? wrote:

Correction in red: harmonics

The ones I found on Ebay were too small (0603) and a lot of the offerings were not shielded. Couldn't find the right ones at Mouser either. Peter G8FWY

Thanks Raj for the explanation.? Makes total sense to me. 73 Evan AC9TU

I ordered a package of 300 of these and I'd be happy to help out the folks in the USA who would like to implement this fix. Not looking for a profit, just cost plus shipping. I'll reply again when I

Why, yes I have! Lots of low-power HT's and such are in plastic. My BitX40 has worked fine for a year now in plastic and I have used it mobile many times. Just yesterday I was traveling from PA to SE

Are they a special type, as I see them on eBay for ?1.11 each? Am I missing something? Postage was just over a pound too. Have you tried mouser.co.uk? Keith M6OLP wrote:

Peter I'm in the UK and will be happy to take 10 off you please let me know when you have them and we can sort payment thank you Sent from my Samsung Galaxy smartphone.

That's really interesting. I googled Guido and QCX and found the thread on the QRP Labs group and another interesting hit. I'll include the links here for anyone interested.