BEACON CW STARTED AT 21:35 UTC, at 21:40 UTC Engeenering Beacon

Both beacon about +7 dB S/N in 2,5 kHz BW. This is considerably lower than most SSB signals during the last two days. We will have to see if it stays that way?

73 Ole

I tried an old ao40rcv. http://www.moetronix.com/ae4jy/ao40rcv.htm

You can see a decode of the PSK-400 beacon here.

Many transmissions yesterday and even more today were just too strong....

Those stations will need to reduce their power to fit the level set by the beacons.

(that is one of the purposes of those beacon signals)

I'm guessing the beacons are from the Bochum backup site and not from Qatar.

(also because of the callsign DL50AMSAT)

Or else they are doing very long workdays there...

In the Mailbox-F7 of the AO40Rcv program, telemetry appears in addition to the text message.

The telemetry is certainly generated on the ground. Where I do not know.

Note that all the other functions of the AO40RCV program are not consistent. We can only read what appears in the Mailbox-F7 and in Signal-F1. The rest is not valid.

LOVELY!!! To hear ths morning the good old sound of AO-10/13/40 PSK telemetry.

Unfortunately i donated my PSK equipment some years ago to a friend...

Also the CW beacon on 489.550 is nice to hear.

THANKS TO THE TEAM DOWN THERE IN DOHA

DK2ZF (qrv since AO-6 in 1972)

Good morning...

Worked very fine with the old programm..

Can someone measure the exact beacon frequencies?

My equipment shows the beacon freqcuency 55 kHz higher as expected ....

73s de Robert

Hello

IZ8BLY AO40 decoder is working fine too !

73

renauld

What is now with the TX Power Level?

When i transmit a CW Signal it is About 10dB above the PSK telemetry.

Is that to much Uplink power ?

vy73 DB8TF

Quote from DD4YR

Can someone measure the exact beacon frequencies?

My equipment shows the beacon freqcuency 55 kHz higher as expected ....

The downlink frequencies you see should be 10489.550 and 10489.800

(as published before)

Quote from DB8TF

What is now with the TX Power Level?

When i transmit a CW Signal it is About 10dB above the PSK telemetry.

Is that to much Uplink power ?

vy73 DB8TF

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Yes, according to the recommendation given before.

Now that there are only a couple of stations active (or none at all) of course the power budget calculation that assumes 50 parallel QSOs is not really valid and required power could be lower.

You should take back tx power especially for CW.

I think the lower beacon would better transmit FSK instead of CW so it is easier to compare to the amplitude (same as terrestrial UHF/SHF beacons usually do)

CW is fine for an old cw-enthusiast.

But a steady CW-Carrier for around 5 - 10 seconds for measuring between the rounds would be fine.

Quote from DL1QC

CW is fine for an old cw-enthusiast.

But a steady CW-Carrier for around 5 - 10 seconds for measuring between the rounds would be fine.

Well, I meant morsecode sent as FSK so still easily receivable for a CW enthousiast (with proper filtering and tuning) but within a somewhat larger passband (SSB) it would have constant amplitude.

But indeed, a ling tone between the text in the loop would be fine as well!

Quote from DD4YR

Can someone measure the exact beacon frequencies?

My equipment shows the beacon freqcuency 55 kHz higher as expected ....

73s de Robert

I have the CW beacon here exactly at (10)489,550.00 MHz (XVTR mode on) on the display of my FT-857 with ref TCXO and 300 Hz BW CW-filter. My whole transverter is GPS-locked, so that seems to work well.

Feb. 14th 10:53 UTC:

Tu ALL for the correct BCN qrg, i have a little offset but it doesnt matter AMATEUR RADIO is EXPERIMENTAL by definition.

And: satellite means DUPLEX since the old OSCARS. You can run and tune simultaneously your own transmission by strength and quality.

And now waiting for the upcoming procedure

DK2ZF