[time-nuts] Re: LORAN C receiver

[Glenn Little WB4UIV]

Thanks, it will be used for parts.
I is a boat navigation receiver that used a 20 MHz TCXO.

I was an Electronics tech on submarines, specialty navigation subsystem.
Shortly before I retired, they upgraded the nav system to remove the 
WPN-3 LORAN receiver and replaced it with a BRN-5 LORAN sensor.
With this we only required two station to get a fix.
While inport we tracked LORAN C and determined a drift rate for our 
cesium standards.
With the known drift rate of the LORAN station standard and our known 
drift rate, we tracked "phase shift" LORAN.
Easier to remain locked to a net with only two stations required an 
master no longer required.

73
Glenn
WB4UIV

On 5/30/2022 1:10 PM, paul swed via time-nuts wrote:
> Glenn good afternoon.
> Unfamiliar with that receiver. If its a location receiver for a plane or
> boat then it has no value as they depended on 3 sites to generate a
> location. Today the eLORAN tests have been pretty much single site that
> fakes a secondary transmitter.
> Things like Austrons and SRS can leverage the single site for very accurate
> frequency.
> But those receivers were intended for frequency or timing.
> I am staying clear of the timing aspect because I am honestly not sure
> the old method is actually being transmitted.
>
> Eloran provides an additional bit in the pulses that actually does contain
> timing and correction information. Though all of the existing receivers to
> my knowledge do not produce this data as an output.
>
> If the US were to invest in eLORAN then I honestly believe the 9th bit
> could be recovered from the SRS and Austrons. Decoded and used for time and
> propagation corrections. I have seen the actual eLORAN receivers and they
> seem to be SDR like.
> But nothing a cheap time-nut could get your hands on.
> Regards
> Paul
> WB8TSL
>
> On Mon, May 30, 2022 at 10:57 AM Glenn Little WB4UIV via time-nuts <
> time-nuts at lists.febo.com> wrote:
>
>> I have a Si-Tex KODEN 797 receiver.
>> I this usable with eLORAN and can I get useful timing data from the data
>> out BNC connector?
>>
>> Can this be used for anything other than parts?
>>
>>
>> Thanks
>> 73
>> Glenn
>> WB4UIV
>>
>> --
>> -----------------------------------------------------------------------
>> Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
>> Amateur Callsign:  WB4UIV            wb4uiv at arrl.net    AMSAT LM 2178
>> QTH:  Goose Creek, SC USA (EM92xx)  USSVI, FRA, NRA-LM    ARRL TAPR
>> "It is not the class of license that the Amateur holds but the class
>> of the Amateur that holds the license"
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-- 
-----------------------------------------------------------------------
Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
Amateur Callsign:  WB4UIV            wb4uiv at arrl.net    AMSAT LM 2178
QTH:  Goose Creek, SC USA (EM92xx)  USSVI, FRA, NRA-LM    ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"