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* * *What does? THOR 22? digital sound card mode _RF SPECTRUM_?? look like when sent over a UHF FM repeater* *(with permission of the repeater owner) * * * *This was sent by the digital net

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Look up "Bessel Null". Simple with a half decent SDR, and accurate (in frequency) audio source. As Scottie used to say "You cane' change the laws of physics." 73 Dave G0WBX.

What I've never understood is why the SDR receivers that I've used do not offer a window that looks like an oscilloscope display of what would be the equivalent of discriminator audio, like the scope

I’m surprised to not see a reply. We did this some years ago on our local net. It works wonderfully. Volume setting is a big obstacle when working across multiple repeater hops and this normalizes

* * *Recently a question was raised about the _optimum TX audio for digital modes on 2m FM_.* *Great question.* * * *The old guideline was to listen to your audio with a second FM radio (HT will work

OLIVIA VS. THOR I find it interesting that the daytime 80m NBEMS nets (Pa/NY/NJ/NH) tend to use THOR22 (78 wpm and 500 Hz) for checkins and THOR32 and MFSK32 for traffic (FLMSG). Prop paths around 7-9

good copy tonight at 7:30 PM EDT from Philly on? 3582.500 kHz (vfo) and @1500 Hz on waterfall with Olivia 8/500 mode Good steady signals tonight received on my 140 ft end-fed NVIS antenna. Was able

Greetings all, Every Thursday night at 19:30 pacific, the Western Digital Net begins taking check-ins on 3.581 MFSK-32 @1500 waterfall. We are looking for interested ops to join in, train, and be able

Setting Optimum RX audio levels It helps to set the amount of RX audio your sound card sees (hears) carefully. Whatever digi audio meter you decide to use for RX levels, I found that decoding works

Fldigi spot Op wo 21 aug. 2024 23:06 schreef Don Rolph via groups.io <don.rolph= [email protected]>:

Bob, thanks for the ti ps! I will poke some more. [email protected]> wrote:

Hi Don I vaguely also remember that squelch action interrupted good decoding, so squelch disabled as one would for Olivia. Most of my tests though were with Thor Micro. FEC can also be

We were exploring Domino EX micro to break through poor propagation conditions. Small scale testing demonstrated that it functioned, but when we tested at scale with multiple stations we got

https://qrpguys.com/qrpguys-dsb-digital-transceiver2

That result makes sense being a double side band transmission. Sounds like operator ignorance on how it operates over it being a bad product. It would be no different (other than carrier) than running

Not going to mention names, so people can avoid this inadequate radio? Andrew, KA2DDO ________________________________________ Sent: Monday, August 5, 2024 9:30 AM To: [email protected] Subject: Re:

There is one manufacturer of kit radios that is advertized for use with the FT modes.? It is a simple double sideband transceiver.? Even if not overdriven with hot audio it produces both an upper

Hi Dave, Obviously something changed but I don't know what it was. I think that FLRIG was not updated. I am using the AmRRON build script to create my Pi. I built that machine three times - always