Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com
Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com
Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com
Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com
Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com
Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com
Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com
Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com
Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com
Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com
Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]-www.prostudioconnection.com

Trak Systems 8821 GPS Disciplined 10MHz OCXO Sine/Pulse Oscillator IRIG-B 1PPS [Refurbished]

( 234295271605) )

Regular price $374.00 Sale price $550.00      (1 available in stock)

Tested/Guaranteed • OCXO Oscillator • 10MHz GPSDO • Sine or Pulse 10MHz Output • BNC Ports • 5V Test Antenna Included • 1PPS • IRIG-B Outout

https://www.prostudioconnection.net/2111/C1007816.PNG

Photos show the actual item for sale

https://www.prostudioconnection.net/2111/C1007821.PNG

A used Trak 8821 GPS Disciplined Clock/Frequency/Pulse Generator with an OCXO oscillator installed. The unit has been tested and found to work as expected with the correct date and time shown via the IRIG-B timecode output. The responses to the various control commands are copied below. This seems to be a later revision than referenced in the manual linked below as it has a later 12 channel Motorola M12+ receiver installed. A basic puck antenna is included to allow you to test the unit immediately upon receipt. For a permanent installation and accurate time/frequency generation a professional grade outdoor antenna with a clear view of the sky will be required (TNC rear panel connector). I can provide a recommendation if required - the antenna voltage is 5V so almost any professional grade outdoor antenna can be used. Full product information may be obtained from the User Manual (a close match) at https://www.prostudioconnection.net/2111/Trak_8821A_Manual.pdf.



https://www.prostudioconnection.net/2111/C1007813.PNG

Description

The Model 8821 GPS Clock incorporates a multi-channel parallel GPS receiver, a disciplined crystal oscillator, and a precise time and frequency generator in a single cost effective assembly. Phase offset of the 1 PPS output, referenced to UTC, is typically less than 100 nanoseconds when one or more satellites are being tracked.

https://www.prostudioconnection.net/2111/IMG_5403.PNG (test equipment not included)

The Model 8821 incorporates automatic oscillator calibration by GPS, automatic leap second correction and built-in calendar for automatic leap year updates. By using the remote setup feature, the operator may set up for automatic daylight savings time corrections. These features, plus a very high MTBF, and an RS-232 remote status-monitoring feature virtually eliminate the need for site visits for setup, calibration, and maintenance.

https://www.prostudioconnection.net/2111/IMG_5404.PNG (test equipment not included)

https://www.prostudioconnection.net/2111/IMG_5401.PNG

https://www.prostudioconnection.net/2111/C1007817.PNG
https://www.prostudioconnection.net/2111/C1007818.PNG
https://www.prostudioconnection.net/2111/C1007819.PNG
https://www.prostudioconnection.net/2111/C1007820.PNG
https://www.prostudioconnection.net/2111/C1007815.PNG

Console Port Output

r1
2021322215745-0500040110281018U
r2
2832178N08139158W+00037.5F
r3
I I10001NS0000004520287B0000002 2 IRIG0000ED00+000000000000065
r4
??31146910 +67000.0000.0000.0000.0
r5
032524037.6043224138.2081830936.4162368137.6222253237.6260355337.8310642737.6321
330834.7
r6
UUHHUUUHHUUUUUUHUUUUUHUUUHHUHUHH
r7
88214520287B
r8
0000000N00000000E+00000.
rqut
RQUT 322:21:58:57.830,4
rqlt
RQLT 2021,11,18,16:59:02.680,4
rqgt
RQGT 2021,11,18,21:59:25.570,4
rqto
RQTO UTC-05,00 DST+0
rqls
RQLS 00,00,00
rqss
RQSS 01U,02U,03H,04H,05U,06U,07U,08H,09H,10U,11U,12U,13U,14U,15U,16H
RQSS 17U,18U,19U,20U,21U,22H,23U,24U,25U,26H,27H,28U,29H,30U,31H,32H
rqst
RQST 03,04,08,16,22,26,31,32
rqln
RQLN 28:32.186N,081:39.164W,+00022.1
rqlp
RQLP 40:18.690N,080:07.491W,+00271.0
rqap
RQAP ERROR
rqsd
RQSD PRN 03, AZ=250, EL=40, SN=37.6, TRK=Y
RQSD PRN 04, AZ=322, EL=42, SN=37.8, TRK=Y
RQSD PRN 08, AZ=182, EL=10, SN=35.9, TRK=Y
RQSD PRN 09, AZ=317, EL=08, SN=04.6, TRK=N
RQSD PRN 16, AZ=242, EL=81, SN=38.0, TRK=Y
RQSD PRN 22, AZ=225, EL=31, SN=38.0, TRK=Y
RQSD PRN 26, AZ=035, EL=52, SN=38.0, TRK=Y
RQSD PRN 27, AZ=158, EL=28, SN=35.7, TRK=Y
RQSD PRN 31, AZ=065, EL=26, SN=37.6, TRK=Y
RQSD PRN 32, AZ=133, EL=07, SN=35.9, TRK=Y
rqds
RQDS D
rqbs
RQBS 80188=00000 6811=4520287B 6805=00000 RCVR1=2 RCVR2=2
rqfs
RQFS G,G,G,G,G,G,G,G,G,G,G
rqlk
RQLK LOCKED SINCE 322:21:43:30
rqir
RQIR INT REF-UTC, +117
rqdr
RQDR 31144


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