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Author Topic: FRSH TX test 5800 AM 1651 utc 28 Apr 2021  (Read 2383 times)

Offline Brian

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Re: FRSH TX test 5800 AM 1651 utc 28 Apr 2021
« Reply #15 on: April 28, 2021, 1854 UTC »
Brian, does the transmitter owner want reports?

No, thanks. There will be more tests over the next couple of days as some adjustments need to be made to the transmitter. No reports necessary but all reports here will be read.

Hi Brian, transmitter frequency seems to be 5800.02 khz at 1830 UTC

That sounds about right. It is possible to get it closer on frequency. I'll look at that later.

Offline Brian

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Re: FRSH TX test 5800 AM 1651 utc 28 Apr 2021
« Reply #16 on: April 28, 2021, 1857 UTC »
1839 Looks like 5800.23 on two different Weston KiwiSDRs

Both misaligned. Don't trust the Kiwi SDRs.
Pity, as most of them can use the frequency standard from the GPS.
I think it is about .23 off frequency. I can adjust this in the TX. I'm still getting the feel of the DDS.

Signal on uTwente now reads 5800.005.

Happy with that.

Edited post to correct frequency.
« Last Edit: April 28, 2021, 1910 UTC by Brian »

Offline Ray Lalleu

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Re: FRSH TX test 5800 AM 1651 utc 28 Apr 2021
« Reply #17 on: April 28, 2021, 1906 UTC »
1839 Looks like 5800.23 on two different Weston KiwiSDRs

Both misaligned. Don't trust the Kiwi SDRs.
Pity, as most of them can use the frequency standard from the GPS.
I think it is about .23 off frequency. I can adjust this in the TX. I'm still getting the feel of the DDS.

Signal on uTwente now reads 5800.05.

Happy with that.
I'm just checking my RX on Taldom 4996.00000000
i just read 4995.99 at zero beat (so I add 0.01 when doing the best reports)
now reading 5800.00 (I have to add 0.01)
I just checked with the Twente SDR in SAM mode : 5800,0047  (to 0049 at times)
« Last Edit: April 28, 2021, 1915 UTC by Ray Lalleu »
D/E/F/G/It/Sp : Dutch/English/French/German/Italian/Spanish
+/- : about 0.02 offset, ++/-- 0.03/0.04 offset
Balanced wire antennas, wire lines and ATU
*** Mes pages ex-OEM : semaines des OC, radios-médias, techniques de réception, en français, demandez  les ! ***

Offline Brian

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Re: FRSH TX test 5800 AM 1651 utc 28 Apr 2021
« Reply #18 on: April 28, 2021, 1912 UTC »
1839 Looks like 5800.23 on two different Weston KiwiSDRs

Both misaligned. Don't trust the Kiwi SDRs.
Pity, as most of them can use the frequency standard from the GPS.
I think it is about .23 off frequency. I can adjust this in the TX. I'm still getting the feel of the DDS.

Signal on uTwente now reads 5800.05.

Happy with that.
I'm just checking my RX on Taldom 4996.00000000
i just read 4995.99 at zero beat (so I add 0.01 when doing the best reports)

Hi Ray. Can you give me an accurate check of 5800 on your receiver?

Offline Ray Lalleu

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Re: FRSH TX test 5800 AM 1651 utc 28 Apr 2021
« Reply #19 on: April 28, 2021, 1923 UTC »
Frequency :
I read 5800.00 on my RX (no more figures here, I read at the next 10 Hz)
Usually, this is 0.01 low or so, even less than that.

Every time I can check with the Twente SDR, I am as close as I can read.
If you want the better readings, look at the Twente SDR in SAM mode.

Just sometimes, the Twente SDR can't hear weak stations.
« Last Edit: April 28, 2021, 1928 UTC by Ray Lalleu »
D/E/F/G/It/Sp : Dutch/English/French/German/Italian/Spanish
+/- : about 0.02 offset, ++/-- 0.03/0.04 offset
Balanced wire antennas, wire lines and ATU
*** Mes pages ex-OEM : semaines des OC, radios-médias, techniques de réception, en français, demandez  les ! ***

Offline kris

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Re: FRSH TX test 5800 AM 1651 utc 28 Apr 2021
« Reply #20 on: April 28, 2021, 1925 UTC »
1924 music on noise level
RX888 ( SDR-FE-PLAY, HRD-747, Sony XDR-F1HD),
Ant. Sky Loop 180m 15m AGL, Sky Loop 120m 35m AGL
       + QRM X-phase eliminator
QTH:  N Poland  Ru/Sp/Gr/Sb=Russian,Spanish,Greek,Serbien
eQSL appreciated to: 13krzycho@gmail.com

Offline Brian

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Re: FRSH TX test 5800 AM 1651 utc 28 Apr 2021
« Reply #21 on: April 28, 2021, 1928 UTC »
Frequency :
I read 5800.00 on my RX (no more figures here, I read at the next 10 Hz)
Usually, this is 0.01 low or so, even less than that.

Every time I can check with the Twente SDR, I am as close as I can read.
If you the better readings, look at the Twente sdr in SAM mode.

Just sometimes, the twente SDR can't hear weak stations.
Thanks Ray.

Online dave1965

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Re: FRSH TX test 5800 AM 1651 utc 28 Apr 2021
« Reply #22 on: April 29, 2021, 0726 UTC »
1839 Looks like 5800.23 on two different Weston KiwiSDRs

Both misaligned. Don't trust the Kiwi SDRs.
Pity, as most of them can use the frequency standard from the GPS.
[/North West Ireland kiwi uses the frequency standard from the GPS  quote]