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

Trak Systems 8821 LED Display GPS Disciplined 10MHz OCXO Oscillator IRIG-B 1PPS [Refurbished]

( 363642719587) )

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

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

https://www.prostudioconnection.net/2112/C1007854.PNG

Photos show the actual item for sale

https://www.prostudioconnection.net/2112/C1007859.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 time shown via the front panel LED display. The day number is incorrect as the internal 8 channel Oncore GPS receiver has experienced a Week Number Roll Over and is therefore showing a date 1024 weeks in the past. This does not affect the accuracy of the time, the 10MHz or the 1PPS signals. It may be possible to install a new GPS receiver card as it's a generic component but it is probably not cost effective to do so. The responses to the various control commands are copied below. 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/2112/C1007851.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.

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/2112/IMG_5409.PNG

https://www.prostudioconnection.net/2112/C1007855.PNG
https://www.prostudioconnection.net/2112/C1007856.PNG
https://www.prostudioconnection.net/2112/C1007857.PNG
https://www.prostudioconnection.net/2112/C1007858.PNG
https://www.prostudioconnection.net/2112/C1007853.PNG

Console Port Output

ROM2 CRC:OK DATE:11/28/01 08:22:11 VER:4520015B
SELECTED ROM:ROM2
T2002,095:20:13:51,G,S,07D097F,17
T2002,095:20:13:52,G,S,07D0980,03
T2002,095:20:13:53,G,S,07D0981,05
T2002,095:20:13:54,G,S,07D0982,07
T2002,095:20:13:55,G,S,07D0983,09
T2002,095:20:13:56,G,S,07D0984,0B
T2002,095:20:13:57,G,S,07D0985,0D
T2002,095:20:13:58,G,S,07D0986,0F
T2002,095:20:13:59,G,S,07D0987,11
T2002,095:20:14:00,G,S,07D0988,05
T2002,095:20:14:01,G,S,07D0989,07
T2002,095:20:14:02,G,S,07D098A,10
T2002,095:20:14:03,G,S,07D098B,12
T2002,095:20:14:04,G,S,07D098C,14
T2002,095:20:14:05,G,S,07D098D,16
T2002,095:20:14:06,G,S,07D098E,18
T2002,095:20:14:07,G,S,07D098F,1A
T2002,095:20:14:08,G,S,07D0990,06
T2002,095:20:14:09,G,S,07D0991,08
T2002,095:20:14:10,G,S,07D0992,01
T2002,095:20:14:11,G,S,07D0993,03
T2002,095:20:14:12,G,S,07D0994,05
T2002,095:20:14:13,G,S,07D0995,07
T2002,095:20:14:14,G,S,07D0996,09
T2002,095:20:14:15,G,S,07D0997,0B
T2002,095:20:14:16,G,S,07D0998,0D
T2002,095:20:14:17,G,S,07D0999,0F
T2002,095:20:14:18,G,S,07D099A,18
T2002,095:20:14:19,G,S,07D099B,1A
T2002,095:20:14:20,G,S,07D099C,13
T2002,095:20:14:21,G,S,07D099D,15
T2002,095:20:14:22,G,S,07D099E,17
T2002,095:20:14:23,G,S,07D099F,19
T
rqut
RQUT 095:20:14:54.760,4
rqlt
RQLT 2002,04,05,16:14:59.860,4
rqto
RQTO UTC-05,00 DST+1
rqls
RQLS 00,00,00
rqss
RQSS 01H,02U,03H,04H,05U,06U,07U,08U,09U,10H,11U,12H,13U,14U,15U,16H
RQSS 17U,18H,19U,20U,21H,22H,23H,24H,25H,26H,27H,28U,29H,30U,31H,32H
rsst
RSST ERROR
rqst
RQST 03,16,22,26,31,32
rqln
RQLN 28:32.184N,081:39.163W,+00011.1
rqlp
RQLP 28:32.184N,081:39.163W,+00011.1
rqap
RQAP ERROR
rqsd
RQSD PRN 01, AZ=259, EL=08, SN=04.6, TRK=N
RQSD PRN 03, AZ=310, EL=32, SN=37.4, TRK=Y
RQSD PRN 04, AZ=305, EL=06, SN=00.0, TRK=N
RQSD PRN 10, AZ=158, EL=07, SN=37.0, TRK=N
RQSD PRN 16, AZ=195, EL=31, SN=37.0, TRK=Y
RQSD PRN 22, AZ=285, EL=47, SN=38.0, TRK=Y
RQSD PRN 25, AZ=038, EL=07, SN=04.6, TRK=N
RQSD PRN 26, AZ=166, EL=72, SN=38.2, TRK=Y
RQSD PRN 29, AZ=071, EL=08, SN=04.6, TRK=N
RQSD PRN 31, AZ=019, EL=53, SN=38.0, TRK=Y
RQSD PRN 32, AZ=096, EL=40, SN=38.5, TRK=Y
rqds
RQDS D
rqbs
RQBS 80188=00000 6811=4520015B 6805=00000 RCVR1=3 RCVR2=2
rqfs
RQFS G,G,G,G,F,G,G,G,G,G,G
rqlk
RQLK LOCKED SINCE 095:16:53:40
rqir
RQIR INT REF-UTC, +14
rqdr
RQDR 2050
r1
2002095201655-0500040110281013U
r2
2832184N08139163W+00011.1F
r3
I I10001NS0000004520015B000000 3 2IRIG0000ED00+000000000000065
r4
A 2050611 +6000.0000.0000.0000.0
r5
033093337.4161953237.4222844738.2261657238.2310195238.2320964038.400000000000000
00000000
r6
HUHHUUUUUHUHUUUHUHUUHHHHHHHUHUHH
r7
8821452001
r8
2832184N08139163W+00011.1S
rqfs
RQFS G,G,G,G,G,G,G,G,G,G,G


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