Hi Markus,
The dds word was 59045922 which gives 137477.000244. DOXCO was
good to +-10 ppb last time it was checked. The next project is a
GPS disciplined LF carrier.
73 & GL and thanks again!
Joe
On Thu, 6 Dec 2018, Markus Vester wrote:
Hi Joe,
do you know those offsets? So far I've received a carrier from you on the
nominal frequency and got good asterisk decodes with fairly flat phase.
Nothing on 479 yet.
Best 73,
Markus
-----Ursprüngliche Mitteilung-----
Von: jcraig <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Fr, 7. Dez 2018 0:00
Betreff: Re: LF: LF and VLF EbNaut
Hi Markus,
There will be dds and DOCXO offsets on LF. The VLF is GPS disciplined.
I got off to a rough start -- but the next frame (2300) should be good.
Thanks for your online resources!
73 & GL
Joe
On Thu, 6 Dec 2018, Markus Vester wrote:
Hi Joe and Rob,
running a pair of autodecoders for both signals:
http://df6nm.darc.de/opds/ebnautresults.txt
Joe is your frequency exactly on 137477.000 or should we consider a small DDS
offset? Are you on GPS-lock or still with the OXCO?
Best 73,
Markus
-----Ursprüngliche Mitteilung-----
Von: Rob Renoud <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Do, 6. Dez 2018 20:29
Betreff: LF: 2200m EbNaut Beacon(s) from North America
LF EbNaut Enthusiasts, The K3RWR EbNaut beacon is currently transmitting on 2200m and
will remain on the air through the weekend until Monday @ 1200 UTC 2018/11/1 (weather
permitting) Operating Details:Freq: 137.479000 kHzCoding: 8K19ACRC: 16Symbol
Period: 3 secMessage Length: 5Duration: 25m 36sRepeats on 00m & 30m Understand
that VO1NA plans on coming up on 137477 kHz on EbNaut making two North American
Stations running EbNaut beacons this weekend. 73 & GL,Rob – K3RWRFM18qi
-----Ursprüngliche Mitteilung-----
Von: jcraig <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Do, 6. Dez 2018 20:04
Betreff: LF: LF and VLF EbNaut
Thanks to all for the encouragement and advice. We have a nasty storm on
the way so let`s get started before it`s too late...
LF:
137.477 kHz, 6 Chars, 8K19A, 3 s symbols, 416 symbols, starting 1900 ut
and at 1 hr intervals, 50 watts to a 100x20m RL
VLF:
8.2700075 kHz, one character, 30 s symbols, 784 symbols, 16K23A, CRC-21,
2300 and 1100 ut daily 30 watts to a 100x15m RL
Best 73`s and good luck,
Joe VO1NA
|
