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Author Topic: RTTY ~4984 kHz 0330z  (Read 6359 times)

Offline n8hensley

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RTTY ~4984 kHz 0330z
« on: March 07, 2013, 0350 UTC »
Hearing RTTY (I assume) around 4984 kHz, USB. I understand this is within a broadcast band, so this shouldn't be here. Does anyone know what this is?

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Re: RTTY ~4984 kHz 0330z
« Reply #1 on: March 07, 2013, 0356 UTC »
Heard it last couple nights very weakly.

Could you decode it?

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Offline glimmer twin

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Re: RTTY ~4984 kHz 0330z
« Reply #2 on: March 08, 2013, 0308 UTC »
4850 - 4995 is Broadcast + fixed + Land Mobile, so a utility station isn't necessarily out of place here.
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Offline Fried Chickin'

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Re: RTTY ~4984 kHz 0330z
« Reply #3 on: January 10, 2020, 0531 UTC »
Russian diplo/Ru. Navy (Black Sea) Coming in to NH now at S9+20. Trying to decode... Will post more later if successful.
Currently "decoding" at 850Hz/75.0 baud rate/2000Hz Center freq.
Gettling a lot of letters, with no special characters or numbers, so that tells me that maybe I'm doing something right. The letters, however, are unintelligible or...encrypted...
Here have a look...
"PLMO
OO
T MC

A
VOIMA
CMLCCNNCTLN
NVNTLNLC
VN

CT
CNLT
M
L
NM
NCN
LL
MLLTNMMTTTTMNNNMTMTNLVCCLMLLVNVN
MNNL
ML
LMVVC
MCVCMTNLMTNCLVMTNCTLTNTTCVNT
CMT
NVTVVNVVVNTCMVNTVNMMVLMMLTNLVV
VCN
NLTVCTVCMMNN


CVMLCLNMTTM
TMCCM
MM
NV
CMMVCTCMLVNLVCNMVMMTN
T
TLCCTLLC
TV
NL
VNCNNM
M
NV
NC
NCTLNCTNNMLM
VMC
LC
VVNTTMNCVCTCLCLNNTVN
MVNCMVVNTVCVL
V
VLNLMVT
VMLLV
CNVNNTTTCTLTMMVLTLCCNLMTLNNNMMLLTLMTVMCTNMC
TTNLCCCLVLCC
V
M
LNV
TLCTNNMTCN
NNV
LCLTLNNMVNMLMLMLN
MLTCVLV

CCN
L
VMNMN
MMNVC
NC
NMCLVLNCTMNVCCTNLNNLCCVN
VMTCVCNLV
CTNL

TL
CTVLTLC
TVT
LNTVVVL
L

NLMNVMLTCCMCMMLMNC
TTVLN
C

MCM


L
M
N
NLTCNLMVLT
CMNTVTLCVVCLCMCTVCNVVMVTTTVNMTLMTTCLCT
TCLTMCTV
MNCVTTNTVTLLV
LCLNV

NCCCNTCTMTMTLVVLMM

T

CC
NTV
CTNV
VTLVCMMTLLLNCMCVNMVMTNTVTLLVTVNMMVTV
NNNCNMVMTMM
TC
MCLCVTLCVCCNCNTTC
CTLTNM
C
N
NTMCVNNVVNTCNT
CTV


VL
VL
MC
LMVMMLM

CMVNLTCVNTVLLCMTVMC
TTNV
C
LCMV
CNTTNTNLCCLVMVM
CNMML
CM

L
NNCLTT
TVVVLLML
LCLVVLNLTMCVV
TNLTCLCMCCN
TTVTTL
CL
CVV
NV
V

NTLMLTVLVVV

V

VMNMMMLNNLVLT
MNCVVVL
T

MTNLLL
L
LCVCTNMNMTTMLLMVCVVMMLCCCTVMCVCLMTTLCCNT
LC

LNLOMMNLVC
MVTCMLNCLVC


LMV
MCLVNNVM
CTV


NVTL
VLLCTLTTMVMTCCT

TMCVCNL
LCCLNMNMMM

MLCTLVVC
N
V
TLTCM
LVNLVVLCN
CVMLC
C
M
CTTML
NNTLMCTTMTT
VVNMTMLMCLML
MCVVMVLTTTMVCNVCCCMLL
VT
TMT
CCT
C
NVMVVMTVVLLLCTMM
MLCMV
NLV
VCVCCCNCMLCTMNNLNLCTLNCVTLCNV
NLLNLVNCCT
CLVMVNLC
N
V
TTMMT
C
LTL
G

CMVMTCMCNLTTVNTL
TNNCLTVVT
NMCLCMVNNTVNTNMLTC
LMCCCNCMC
NTLMTLVCNMNVLVNL


LLC
MMVTNMV
CVVLV
VNVTCLNT
LLL
NC


LT
NM
VCLLCMNVMML
MCLVMN
VNLCVLVNNLMVVV
MNCLNCTVLMV
N
LVM
TLTVTLVTT

TLMNTLC
MTLL
CTMVCLVMCMMNNNTVT
LVNCC
MNVNCVVVNVTNTL
VMCVVNCL
VLVM
CVM
TMTCCCMTVTVMT
TVVMCTVV
VTLMLL
NL
CNNVN
CCVVVLMTN
CVT
CVNTMML
NVC
L
GNVNNVN
TNCVC
MMCMMLCVMCNTVNTTLNMTVCNTTMLVVLMM
MTTLVV
CTT
MTVT
LCCC

CVTMN

M
NNNNCTLCVLVNVCV
LNTMVMVNVTNT
NCVVCTNTLC
LTV
NNNVMMTVMNCVLT
LLMNMVVMV
NMNTMMT
TNVCC
VLCNMCTMTCLNTTVNNTN

MNVV
LMTC

NVTVTLN
CNLC
TCV
CMMN
MVVV
C
CL
LMV
MTTVLNLL
LTTNLM
NTVLT
V
TCMVMNMNLTCM
VTL
VTTLLLTVCMN
NMCTM
TL
LCTCNLLMMTV
TCTNCCLTV
VTC
TLLCMMVCC
NLVNCCTCCLLTMMNC
C
VTVLTT
LCTTMCNCVMT
VC
NCLLVMTM
VN
MMCCL
C
LTTNLCNTMC
L
VMLMVCLNMTLNLLCMLLVM
CLTLLL
TLVLCVM
MNLCMLNVTLTNNTCLVMCMM
CMLVVCNVVTC
LNMTNTLMVCCCL
TMCNMVTVCVVMTNC
LLLCVVL
VMNT
LV
CVM
LCLC
TNNMNTMLMVVTVTML
MMTCVMMV
LTVCL
TTL

MVT
CMMM
L
NLNNNMLTLTLNCTMCV
CLNCTV
VN
TL
MNLL
L
CVVCCTTTNTCVMCLN
TTMTMMNCCTCL
TNNC
MLVTTLNLTC
TNV
TNC
VMNCC
MVN


VVCLCNVNMLMCLMNMML
LCN
CLCLCLV
MLCMVVNVTNMLC
TNT
VVMCVTV
VTNLTCMCTVTNLV

CNMMC
TTTCMNMTMNTMTTLNT
CV

TMV
MLVMTVMVCTNM
MTVLTVVTNTTCL
L
MVVTV
CLVV
LLNTTNCLNCMCMMLNC
CCNNCVTTNVNTLNMMNCMC
NLCCV
TLNMTNNLMMCCVTLCMNVTMNCTNMLCVC
NTVNLTCTCVLVLN
TNCMCNMLLNCVTCCLMNVTMLTVMMNT
M
VVNVVMMCTNNLTNCL

VLCCLLLMVCVTC
NTLNMNL
N
MNLTCNVCTC
NNMCVCNTCNLVMM

TVLVNMVCL
MTNLCMNNCM
MMNLCCLTCMV
MTLTNLCT
VN
NTVV

VMTMVVTLCMCLLCMMT
NNLTTMCNC
VCTLTVNCL"

« Last Edit: January 10, 2020, 0551 UTC by Chickin Little »
L.V.X.

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Loops & Wires & Love of radio waves...

Offline kestryn

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Re: RTTY ~4984 kHz 0330z
« Reply #4 on: March 31, 2020, 0414 UTC »
I'm capturing this in the San Diego area.  This is the one utility station that perplexes me right now.  It's perpetual.  My RTTY decode attempts result in the same "roman-numeral"-like decodes.  It seems there is a pattern there, anyway. 

Anyone have progress?  I have some short SDRUno IF WAV recordings and screenshots, but am new to this board, so not yet sure what the best way to share is.

Offline kestryn

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Re: RTTY ~4984 kHz 0330z
« Reply #5 on: March 31, 2020, 0511 UTC »
So, a bit more poking around in the forums, etc, and I think this might be the culprit.... STANAG4481:
https://www.hfunderground.com/board/index.php?topic=5990.0

Offline Josh

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Re: RTTY ~4984 kHz 0330z
« Reply #6 on: March 31, 2020, 2119 UTC »
I show 4985 as Davidsonville, MD, perhaps a USN BRASS xmission.
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