GPS Displiplined Oscillator
Voici un projet pour obtenir une fréquence de référence de
10 Mhz synchronisée sur le signal GPS . Sortie Onde carré
ou sinusoidale . Peut être utilisée comme référence a Un
TX HF , un Générateur RF ou un SDR de type Hack RF One ,
pour calibrer un compteur de fréquence ou un générateur
GPS DO disponnible sur Ebay pour environ 150 $$b Can .
Incluant Antenne GPS cable RS232 et Adapteur RS 232 a USB
Voir référence a
http://andybrown.me.uk/2016/11/12/gpsdo-ebay/
et https://www.cafr.ebay.ca/itm/Trimble-GPS-Receiver-GPSDO-10MHz-1PPS-GPS-Disciplined-Clock-sine-and-square-wave/252162780444?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
Pour vérifier le fonctionnement du GPSDO , utiliser le
cable RS232 fourni et un ordi qvec un port série ,
démarrer Hyperterminal et ajuster la vitesse a 57600N81
Brancher et faire la commande help.
Les commandes suivantes donnent une bonne information sur
le fonctionnement :
status
posstatus
gps:pos?
syst:stat?
outp:ref?
Help
Voir les exemples de ces commandes
N*1
status
- UCCM Slot STATE-
1-1. #Now ACTIVE STATUS ---------------- [Master Manual]
1-2. #Before ACTIVE STATUS ------------- [OCXO Warm]
2-1. #Reference Clock Operation -------- [Not Used]
2-2. #Current Reference Type ----------- [GPS]
2-3. #Current Select Reference --------- [GPS 1PPS]
2-4. #Current Reference Status --------- [Ref LOS]
#GPS STATUS ----------------------- [Available]
#Priority Level ------------------- [LINK > GPS]
#ALARM STATUS
#H/W FAIL [ GPS LINK ]
#OPERATION ALARM ------------------ [GPS LINK ]
3-1. #PLL STATUS ----------------------- [ENABLE]
3-2. #Current PLL MODE ----------------- [OFFSET OBSERVATION MODE]
Command complete
UCCM-P >posstatus
---------------------------------------------
12/13/2019 16:29:47
---------------------------------------------
Position: LAT(N 45:33:21.373) LON(W 73:42:18.809) H( +2.58 m MSL)
---------------------------------------------
Geometry: PDOP(0.0) HDOP(0.0) VDOP(0.0)
num of visible sats > 2
num of sats tracked > 2
-------- Receiver Channel State --------
CH 0 > SateID(13) TrackMode(tracking ) SigValue( 0)
CH 1 > SateID(31) TrackMode(tracking ) SigValue( 0)
CH 2 > SateID(06) TrackMode(tracking ) SigValue( 0)
CH 3 > SateID(19) TrackMode(tracking ) SigValue( 0)
CH 4 > SateID(01) TrackMode(tracking ) SigValue( 0)
CH 5 > SateID(14) TrackMode(pos avail) SigValue(37)
CH 6 > SateID(26) TrackMode(tracking ) SigValue( 0)
CH 7 > SateID(10) TrackMode(tracking ) SigValue( 0)
CH 8 > SateID(09) TrackMode(tracking ) SigValue( 0)
CH 9 > SateID(03) TrackMode(tracking ) SigValue( 0)
CH 10 > SateID(32) TrackMode(pos avail) SigValue(40)
CH 11 > SateID(30) TrackMode(tracking ) SigValue( 0)
---------------------------------------------
Rcvr Status(0):
---------------------------------------------
Antenna Voltage: 5000.00mV , Antenna Current: 11.33mA
Command complete
UCCM-P >gps:pos?
N,45,33,21.373,W,73,42,18.809,+2.58
Command complete
UCCM-P >syst:stat?
-------------------------------------------------------------------------------
#57964-60 serial number 87436986 firmware ver 1.0.1.5-01 LINK mode
#-------------------------------------------------------------------------------
#Reference Status __________________________ Reference Outputs _______________
#XX Ref 8KHz 0: [LOS]
#XX Ref 8KHz 1: [LOS] TFOM 2 FFOM 3
#XX Ref 8KHz 2: [LOS] UCCM A Status[ACTIVE]
#XX Ref 8KHz 3: [LOS]
#>> GPS: [phase:+0.0E+00, settling]
#ACQUISITION ...................................................[GPS 1PPS Valid]
#Tracking: 2 ____ Not Tracking: 10 _______ Time ____________________________
#PRN El Az C/N PRN El Az GPS 16:30:42 13 Dec 2019
# 14 13 255 37 26 -- ---
# 32 37 264 41 13 -- --- ANT DLY -1 ns
# 2 -- --- Position ________________________
# 1 -- --- MODE Survey: 1.0% complete
# 31 -- --- Suspended: no track data
# 19 -- --- AVG LAT N 45:33:21.373
# 10 68 307 AVG LON W 73:42:18.809
# 9 -- --- AVG HGT +2.58 m (MSL)
# 7 -- ---
# 6 -- ---
#
#
#ELEV MASK 5 deg
#-------------------------------------------------------------------------------
#
Command complete
UCCM-P >outp:ref?
GPS
Command complete
UCCM-P >help
*IDN?
ALARm:HARDware?
ALARm:OPERation?
DIAGnostic:OUTPut ON|OFF
OUTPut:REFerence?
OUTPut:ACTive:ENABle
OUTPut:ACTive:DISable
OUTPut:ACTive:HOLDover:DURation:THReshold <seconds>
OUTPut:ACTive:HOLDover:DURation:THReshold?
OUTPut:INACTive
OUTPut:INACTive?
OUTPut:STATe?
SYNChronization:HOLDover:DURation:STATus:THReshold <seconds>
SYSTem:PRESet
SYNChronization:TFOMerit?
LED:GPSLock?
SYNChronization:FFOMerit?
GPS:POSition N or S,<deg>,<min>,<sec>,E or W,<deg>,<min>,<sec>,<height>
GPS:POSition?
GPS:POSition:HOLD:LAST?
GPS:REFerence:ADELay <numeric value>
GPS:REFerence:ADELay?
GPS:SATellite:TRACking:COUNt?
GPS:SATellite:TRACking?
DIAGnostic:ROSCillator:EFControl:RELative?
SYNChronization:TINTerval?
DIAGnostic:LOG:READ:ALL?
DIAGnostic:LOG:CLEar
SYSTem:PON
OUTPut:MODE?
SYSTem:STATus?
SYSTem:COMMunication:SERial1:BAUD 9600|19200|38400|57600
SYSTem:COMMunication:SERial1:BAUD?
SYSTem:COMMunication:SERial1:PRESet
SYSTem:COMMunication:SERial2:BAUD 9600|19200|38400|57600
SYSTem:COMMunication:SERial2:BAUD?
SYSTem:COMMunication:SERial2:PRESet
OUTPut:STANby:THReshold <seconds>
changeSN
SYNChronization:REFerence:ENABLE LINK|GPS
SYNChronization:REFerence:DISABLE LINK|GPS
SYNChronization:REFerence:ENABLE?
STATus
POSSTATus
TOD EN|DI
TIME:STRing?
REFerence:TYPE GPS|LINK
REFerence:TYPE?
PULLINRANGE 0|1|2|...|254|255
PULLINRNAGE?
DIAGnostic:LOOP?
DIAGnostic:ROSCillator:EFControl:DATA GPS|<value>
DIAGnostic:ROSCillator:EFControl:DATA?
OUTut:TP:SELection PP1S|PP2S
OUTut:TP:SELection?
GPSystem:SATellite:TRACking:EMANgle <degrees>
GPSystem:SATellite:TRACking:EMANgle?
DIAGnostic:TCODe:STATus:AMASk
DIAGnostic:TCODe:STATus:OMASk
DIAGnostic:TCODe:ERRor:AMASk
DIAGnostic:TCODe:ERRor:OMASk
DIAGnostic:HOLDover:DELay
DIAGnostic:HOLDover:DELay?
GPS:SATellite:TRACking:IGNore <PRN>, ...,<PRN>
GPS:SATellite:TRACking:IGNore?
GPS:SATellite:TRACking:INCLude <PRN>, ...,<PRN>
GPS:SATellite:TRACking:INCLude?
GPS:SATellite:TRACking:<select>:ALL
? or HELP
Command complete
UCCM-P >
Richard Aubin
VE2DJE dec2019