RX1 or RX2 noise floor goes full scale on Ver 1.9

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jeffreydoran
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RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby jeffreydoran » Thu May 02, 2019 12:36 am

This is happening more frequently, probably still a timing issue. 5 times in 3 weeks, in Thetis ver 2.6.6 and 2.6.7, P2 ver 1.9, either the RX 1 or RX 2 panadapter noise floor goes full scale. You hear floor noise, but its very evident that reception has stopped. It seems to occur as the transceiver transitions from TX to RX. 4 times on RX 2, 1 time on RX 1, captured here.

I'm guessing its a firmware issue, I don't know for sure.

Jeff
NJ2US
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NC3Z
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Location: Merritt, NC

Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby NC3Z » Thu May 02, 2019 1:32 am

I am getting some real weirdness when I use S-ATT vs ATT on RX2. As I roll through the S-ATT from 0 to -31 the RX2 spectrum noise floor varies by 30 or more dB. But if I PTT the noise floor will recover to where it should be, until I adjust the S-ATT again.

If I use ATT and adjust I do not have this issue.
Gary NC3Z
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n1gp
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby n1gp » Sat May 04, 2019 8:15 pm

Hi Guys,

Could you try this new build, so far working well for me...

https://www.dropbox.com/s/ndahfr5zgh1l252/Orion_MkII_Protocol_2_v2.0_pre1.rbf?dl=0

Tnx

-Rick / N1GP
jeffreydoran
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby jeffreydoran » Sat May 04, 2019 8:37 pm

Thanks Rick, flashing now, I will report back.
Had the Full Scale floor jump occur twice this morning.
Jeff
NJ2US
NC3Z
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby NC3Z » Sun May 05, 2019 12:38 am

Rick is this supposed to address the ATT issue I noted? If it is then it did not fix it.
Gary NC3Z
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby NC3Z » Sun May 05, 2019 12:55 am

Not sure if this shows you enough of what I am seeing:

https://www.youtube.com/watch?v=tu1ezjAxhFU
Gary NC3Z
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w-u-2-o
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby w-u-2-o » Sun May 05, 2019 2:22 am

Gary,

Other than your RX2 issue, which may be Thetis related, how is 2.0 working for you?

73,

Scott
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby NC3Z » Sun May 05, 2019 11:53 am

No RX2 max rise of the spectrum so far, whether it is related to the spectrum level changing with PTT when in the S-ATT mode is unknown (and unknown really if it is P2 or Thetis.

It may very well be 2 separate issues we are seeing that causes the spectrum level to rise and fall drastically.
Gary NC3Z
jeffreydoran
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby jeffreydoran » Sun May 05, 2019 2:45 pm

Pre release 2.0 stable after 6 hours of operation so far, no panadapter noise floor rise. RX2 Step Attenuator continues to exhibit its anomaly as noted by Gary NC3Z.
Jeff NJ2US
jeffreydoran
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby jeffreydoran » Sun May 05, 2019 2:56 pm

I don't have a 100D, 2.0 working very well at this point.


Jeff NJ2US
Thetis 2.6.7
7000DLE
Windows 10 Pro i7 3.6 Ghz 16gb RAM
NC3Z
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby NC3Z » Sun May 05, 2019 3:56 pm

I am running a 7000DLE. Good question on what worked well last as we have had a few Thetis and firmware updates over the last couple of weeks it is hard to say.
Gary NC3Z
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby NC3Z » Sun May 05, 2019 3:57 pm

Jeff, do you still see the S-ATT issue?
Gary NC3Z
jeffreydoran
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Re: RX1 or RX2 noise floor goes full scale on Ver 1.9

Postby jeffreydoran » Sun May 05, 2019 5:18 pm

The S-ATT issue persists on RX2, in fact the 10-20-30 db steps don't seem to behave as expected either.

Also, 5 hours of continuous net control operations on 40 meters this morning, with no spectrum jumps on FW 2.0 (Orion MKII)

Jeff
NJ2US

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