It would convert a 10.7 MHz if to 462 kHz if.
Regards.
Max. K 4 O D S.
Email: [EMAIL PROTECTED]
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To subscribe to the fun with tubes group send an email to,
Maybe it's the 2nd LO for a dual conversion receiver with IF's at 10.7
MHz and 455 kHz. 10.238 + 0.455 = 10.693
Rick Karlquist N6RK
Jim Lux wrote:
> At 10:37 AM 5/30/2008, you wrote:
>>I have two PIEZO 10.230 MHz crystal oscillators in the same style package
>> as
>>the 10811. But the oscillat
At 10:37 AM 5/30/2008, you wrote:
>I have two PIEZO 10.230 MHz crystal oscillators in the same style package as
>the 10811. But the oscillator in question is for 10.238 MHz.
interesting.. is the 8kHz a deliberate offset? Is the manual tuning
off to one end? Maybe they were using them in a sche
I have two PIEZO 10.230 MHz crystal oscillators in the same style package as
the 10811. But the oscillator in question is for 10.238 MHz.
John WA4WDL
- Original Message -
From: "Jim Lux" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measurement"
Sent: Friday, May
Bill,
I have not seen 10.23MHz external freq input on commercial receivers.
But I have two ancient (ca 1991) Magnavox GPS Engines. (As seen on page
23 in pdf below.)
http://www.rms-ion.org/Presentations/Dual-Use%20GPS.pdf
These are running on 10.23MHz XOs. One (of too many) future projects
i
Brooke,
That would imply that this 10.23 MHz ocxo could be used in place of a GPS
receiver's
oscillator and some additional circuitry to form a LOOP. Then divide by 1023
for a
reference frequency to another loop with a sine-wave oscillator as the house
standard.
I have seen the above suggested
At 08:33 AM 5/30/2008, you wrote:
>Early GPS receivers used a 10.23 MHz time base.
>Probably related to 2^10-1.
yep.. the chip rate for the C/A code is 1.023 Megachips/second, the P
code is 10.23 Megachips/second, and the L1 frequency (1575.42) is
exactly 154 times the 10.23 MHz, the L2 is 120
Hi Rick:
10.23 MHz shows up in the ICD-200 spec on how the GPS signal is generated.
I've got a GPS sig gen see:
http://www.prc68.com/I/5001A.html
http://www.prc68.com/I/5001Bot.html
and it has an HP 10.23 MHz oscillator.
Have Fun,
Brooke Clarke
http://www.prc68.com/P/Prod.html Products I make
Early GPS receivers used a 10.23 MHz time base.
Probably related to 2^10-1.
Some GPS manufacturers approached HP about making
a 10811 on 10.23 MHz. There is a circuit modification
for 10.23 MHz and some crystals were made (I
have some somewhere). However, I don't believe
any 10.23 MHz 10811's wer
Anyone know where I can get a manual for the Efratom FRK RbO ?
The BAMA copy is pretty poor.
Thanks, Dick, W1KSZ
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