[time-nuts] Trimble Mini-T end of life
Said Jackson
saidjack at aol.com
Fri Jul 20 06:31:24 UTC 2012
Hello Mark,
Yes, the external 5V antenna power works as before on the Mini-t, the internal 3.3V and external 5V supplies are diode-ored together to support either or.
A Waas only mode would be very difficult to do, maybe through a high mask angle.. But interesting idea to look into..
Thanks Said
Sent From iPhone
On Jul 19, 2012, at 19:03, Mark Spencer <mspencer12345 at yahoo.ca> wrote:
> Just wondering about the internal 3.3 volt antenna supply. A switchable 3.3 or 5 volt supply would be nice. Antennas such as the Symmetricom 58532A still want 5 volts. Also if possible a waas only hold over mode would be nice (sorry I don't know if this is feasible or not.)
>
> Sent from my iPad
>
> On 2012-07-19, at 3:33 PM, SAIDJACK at aol.com wrote:
>
>> Hi guys,
>>
>> thanks so much for all the great suggestions on how to make this product
>> better!
>>
>> Yes, cost targets are a very important goal here, and we are looking into
>> adding options that make sense for most customers and don't add excessive
>> cost or delay to the schedule. We definitely will improve the performance of
>> the unit over the original Mini-T though, because we feel that the Mini-T
>> had sub-par performance on many fronts, and don't want to make the same
>> mistakes. Some of the improvement items we have already decided upon are:
>>
>> * 50 channels GPS with WAAS/EGNOS/MSAS and Position-Hold mode with
>> automatic initialization of the Auto-Survey process by default. Alternatively, the
>> unit can be put into mobile mode, with Auto-Kalman filter optimization
>> depending on vehicle velocity. -160dBm GPS tracking capability
>>
>> * A secondary 10MHz output (SMA or SMB connector, only the connector needs
>> to be stuffed onto the PCB) to have access to the +13dBm output signal
>>
>> * Internal +3.3V antenna supply, that is automatically over-driven by the
>> externally applied antenna supply
>>
>> * USB connector for command/control, RS-232 option, and TTL serial port for
>> legacy compatibility
>>
>> * RoHs 6/6 for compatibility, and RoHs 5/6 option for much longer life and
>> better MTBF than Mini-T
>>
>> * more than 3x better thermal stability, and at the same time more than
>> double the temperature range (+/-5ppb over -40C to +85C versus +/-10ppb from
>> only 0C to +60C) standard, and DOCXO option for even higher thermal
>> stability performance and low-g sensitivity/ruggedized crystal options.
>>
>> * Better phase noise
>>
>> * Status LED's on board
>>
>> * TTL lock/ALARM indicator
>>
>> * External 1PPS input option on unused pin 1 of the main connector
>>
>> * Fully field-upgradable firmware, no FPGA programmer needed
>>
>> * Support for NMEA and SCPI commands
>>
>> * 3-axis accelerometer built-in
>>
>> * lower height: 0.47 inches OCXO height versus 0.75 inches
>>
>> * Much better ADEV performance
>>
>> * Factory-testing for crystal-jumps on every unit
>>
>> We also had several folks ask for alternative frequency outputs, and are
>> currently investigating if we could use the secondary 10MHz connector to add
>> another VCXO to generate any output frequency from 10MHz to 120+MHz such as
>> is done on our ULN-1100 boards. This would add some cost though, and may
>> just end up in a secondary version of the board so that customers who don't
>> need it won't have to pay for it..
>>
>> The most important item to get feedback on is the TSIP port, we cannot
>> implement the entire TSIP command set as this is quite complex, most customers
>> probably only use a handful of actual commands, and we believe the
>> SCPI/NMEA command/control/status interface is much superior over the proprietary
>> binary TSIP port.
>>
>> We are however open to implement a couple of useful and common TSIP
>> outputs, and would greatly appreciate feedback and suggestions on this, for
>> example a minimum set to make Lady Heather work..?
>>
>> Thanks,
>> Said
>>
>>
>> In a message dated 7/19/2012 13:41:07 Pacific Daylight Time, wb6bnq at cox.net
>> writes:
>>
>> Hi Said,
>>
>> I know everyone is going to ask for the kitchen sink to be thrown in.
>> BUT, how about
>> just making a replacement that does exactly the same job with no added
>> thrills ?
>> That way your spending the least amount to produce a product and keeps the
>> cost down
>> to the customer which may cause them to want to keep designing with that
>> particular
>> product.
>>
>> just saying........
>>
>> Bill....WB6BNQ
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
More information about the Time-nuts_lists.febo.com
mailing list