Looking at the Keysight picture you posted it's hard to tell the characteristics of the peaks that appear beside the (was it?) 28.4 MHz signal. (The screen notation of 390 kHz is

Um, I am not sure I understand that picture. That is the analyzer's specification or something very custom you have put together? I'm answering both emails here. If that is the

Hello Simon, I had a choice between 6m EME and 6 and 4m with ‘normal’ antennas. I chose 6m EME but I am not so sure it was the right decision after recent storms. I have 6m/4m dual band antenna

Forgot to mention that in high amateur density areas in VHF contests for stations using high power there is a ‘code of conduct’. Perhaps if you have time you may want to watch this

Hi, no it is actually 5 different IC7300s tested by 3 different people, including Rob Sherwood. if you have time you can see the plots and some other data that I posted earlier just do a search. I’m

I suspect your specification is still beyond the state of the art. Is your transmitter that good? It sounds like the 7300 is cleaner than average close in but has some issues

Conrad, 80m SSB DXing has died as death – despite excellent conditions very few people coming on. Are you on 4m – if so I’ll be testing my new legal limit amplifier this afternoon. Simon

You are not painting an attractive picture Simon. However when I get older and maintaining EME antennas gets too much for me. I do always fancy 160 and 80m. Mainly because it appears to be

When I get the opportunity I will check on 80m, I have not checked below 28MHz. On 80m I do not expect the composite noise to any issue due to the much higher noise floor on the low bands. So if you

Try listening in the 80m DX window in New England – AG1J uses a ~60 year-old SSB rig. Wide hardly starts to describe it, I think it’s a phasing exciter with obligatory after-burner. Simon

Watching on-air on 80m and comparing to all other rigs people use. Simon Brown, G4ELI https://www.sdr-radio.com

Been there, got very confused 😊 . Simon Brown, G4ELI https://www.sdr-radio.com

By clean I mean - can I hear anything of sufficient magnitude to disturb the noise floor anywhere in band, and hence inhibit my ability to receive signals close to the noise floor. The noise floor in

OK, please refresh my mind what you mean by "clean". It certainly appears to be sending something much closer to pure signal concentrated within its intended bandwidth than most other

I am not clear what you mean by "between the modulation". The full feedback process for improving modulation characteristics attempts to make the transmitted signal as close to

I KNOW for a fact that the IC7300 is not clean. Please provide me some evidence to the contrary. I have measurements with a R&S FSWP Signal analyser out to a 1MHz BW. You guys are looking in an SSB BW

Simon and Conrad. It seems to me that you maybe are talking about two different parameters when it comes to a clean Tx-signal from the IC-7300. I get that Simon is referring to splatter from the

Military contracts fall into the code names and acronyms to the point whole conversations seem to exclusively use acronyms without normal nouns, verbs, and stuff. I'm glad I am out of

OK Simon. I guess the filter tracking is generic to the HPSDR concept, let it be ANAN or Hermes. Thanks for the info, good to know. A name is just a name, is it an acronym for something? It might just

Bug fixed by Simon. Thanks to him. 73, Michel (F1GOC) PS : The file has been edited with the file editor of SDR Console of course.