Hi Mauro,
At the present, I think Opera is the most widely used.
WSPR reaches -27db, not enough for covering long distances on LF. So, it's
rarely used.
Opera and lentus perform better:
Lentus reaches -34db for 5 minutes trasmission, Opera8 and Opera32 (8/32
minutes trasmission) reach -32db and -38db respectively.
In my opinion, technically speaking, Lentus is the best (it is also very good
for making QSO). Lentus requires a very good syncronization among station. In
addition, if you use a SDR, you may have some problems due to the latency of
the SDR.
Instead, Opera is very simple and very close to the "regular" QRSS.
So, my conclusions are:
For medium distance beacons : Opera8 or Lentus
Foe long distance beacons : Opera32
For QSO : Lentus
best 73's'
I5ZPO Gino (operated by IW5BHY Andrea)
>----- Original Message -----
>From: [email protected]
>To: [email protected]
>Data: Thu, 26 Apr 2012 12:27:27 +0200
>Subject: LF: info about better digital mode in 2200m band
>Hi,
>
>what is the better digital mode for starting listening 137 KHz
>band as "reverse beacon" (no TX)??
>("better" = greater number of active stations in Europe)
>
>WSPR ?? LENTUS ?? OPERA ??
>
>what frequency is utilized for those modes ???
>
>thanks in advance to all ..
>
>73 de Mauro IK1WVQ
>
>P.S.: my RX station is : PA0RDT 8 meters over the roof, RACALL 1792
>.. not great station at all ..
>in QRSS mode the only station what I can receive is the "broadcast
>(HI!)" beacon of Stefan DK7FC .. NO OTHER ...
>
>
>
>
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