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UT1HZM > PACKET 16.02.21 11:21l 22 Lines 551 Bytes #999 (0) @ WW
BID : 4470_UT1HZM
Read: GUEST
Subj: Re: HF 300bd packet on 14101.10
Path: IW8PGT<IZ3LSV<I3XTY<I0OJJ<EA2RCF<LU9DCE<EC5W<KD8FMR<PY2BIL<OK2PEN<
GB7CIP<IR2UFV<UT1HZM
Sent: 210216/0910Z 4470@UT1HZM.KREM.POL.UKR.EU BPQ6.0.21
Hello.
Its all the same packet net, called "NET105" on 14103.3 kHz RF center freq!
Meaning actual center of radiating spectrum, as seen on RF spectrum analyser or SDR-waterfall.
14105 LSB DIAL minus 1.7kHz (modem audio center freq for 1600/1800Hz tones pair) = 14103.3 kHz RF center.
=
14101.1 USB DIAL plus 2.2kHz (modem audio center freq for 2100/2300Hz tones pair) = 14103.3 kHz RF center.
LSB still partially used just for historical reasons.
More than 20 years ALL ham digimodes used in USB on HF, as de-facto standard.
73, Sergej.
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