| Products > Test Equipment |
| Anyone tried out the TM5301A? |
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| Tapioca Pudding:
I need a new GPSDO for my homelab. I was looking around on eBay for used equipment and came across the TM5301A, seems new. Has anyone tried this or can link a review? Thanks in advance! Ebay Link: https://www.ebay.com/itm/TM5301A-GPSDO-GPS-Disciplined-Oscillator-Color-Display-Accuracy-For-GPS-Beidou/174387570327 |
| tautech:
Welcome to the forum. Seems expensive compared to member Leo Bodnar's GPSDO offerings: http://www.leobodnar.com/shop/index.php?main_page=index&cPath=107&zenid=a63104ee7b1350bae9838b944664a40e |
| Tapioca Pudding:
Thanks for the recommendation (and greeting), I'll take a look. I'm looking for something that will output a 10 MHz square and PPS. Monitoring is a plus. Both will get distributed to some SDRs and test equipment. |
| burkm:
To restart an older thread: The TM 5301A doesn't seem to have any reviews yet. Main arguments for: - fast startup time until it reaches rather good stability - low phase noise if one trusts the published data - 2x sine and square wave outputs - multi color display with lost of informations - high default baud rate for data. Against: no info about the OCXO used, no infp about the inards of that black box, rather high price in comparison. against: - only GNSS GPS and Beidou satellite networks seem to be supported - no info about XO or OCXO installed - no info about the innards of unit - rather high price in comparison - not very popular ist seems |
| linearaudio:
Just received my TM5301A from: https://www.ebay.de/itm/283997524624?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649 For an additional US $ 48,- an U-blox NEO M8T GNNS receiver was installed, capable of GPS, GLONASS, GALILEO & BEIDOU, a sensitive receiver with 72 channels from Swiss company U-blox. Fast lock, 3 concurrent GNSS, really a nice unit, came with power supply and indoor active GPS & BEIDOU antenna. You will want to use an active outdoor antenna with this GNSS receiver, Navilock NL-250GG is an appropriate unit covering all four GNSS. I also tried another GPS only receiver, based on an old, used Symmetricom module: https://www.ebay.de/itm/143319767716?hash=item215e861aa4:g:Q34AAOSwouNgcDBr I will return this receiver, does not lock even after more than one hour, using the same antenna that works perfectly with the TM5301A ! My advice: stay off the China made GNSS receivers using old, recycled and insensitive receivers. Same model is available with old Samsung or Trimble receiver as well. ADEV of TM5301A is really good, so this GNSS receiver is suitable as a timebase for my Pendulum CNT-90 and CNT-91 counters, see attachment. I think the TM5301A, made from all new components ( I opened it ), is worth the money asked. Yngve |
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