[1000mp] Re: Mark V/Field TCXO's 4 & 6

Al Toothaker n6ta at arrl.net
Wed Aug 4 22:53:49 EDT 2004


I'll add that my Mark V manual says .5 or .25ppm.  Who knows what they put
in it?
Al, N6TA

-----Original Message-----
From: 1000mp-bounces at mailman.qth.net
[mailto:1000mp-bounces at mailman.qth.net]On Behalf Of Thomas Giella KN4LF
Sent: Wednesday, August 04, 2004 17:20
To: All about Yaesu 1000mp
Subject: [1000mp] Re: Mark V/Field TCXO's 4 & 6


According to my Mark V Field operations and service manuals the TCXO-4 is
0.5 ppm and the TCXO-6 0.25 ppm. So John N1JM is correct.

73,
Thomas F. Giella, KN4LF
Plant City, FL, USA
Grid Square EL87WX
Lat & Long 27 58 31 44N 82 09 51 98W

PODXS 070 PSK31 Club Member #349

KN4LF Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm

----- Original Message -----
  From: D. J.
  To: All about Yaesu 1000mp
  Sent: Wednesday, August 04, 2004 7:13 PM
  Subject: Re: [1000mp] Why??



  On Aug 4, 2004, at 5:37, John L Merrill wrote:

  > the tcxo4(standard on the Field or MkV) is .5ppm and the tcxo6 is
  > .25ppm. I
  > think either one would suffice in the 60mtr band.
  >
  > John N1JM
  >

  Check again John.  The standard TCXO is 2.0 PPM  optional is .5 PPM.
  At first that was my understanding, but looking closer it's not the
  case.

  Dale, K9VUJ





  > -----Original Message-----
  > From: 1000mp-bounces at mailman.qth.net
  > [mailto:1000mp-bounces at mailman.qth.net]On Behalf Of Hans Remeeus
  > Sent: Wednesday, August 04, 2004 12:27 AM
  > To: All about Yaesu 1000mp
  > Subject: Re: [1000mp] Why??
  >
  >
  > I cannot imagine why you should use a TCXO and 2.4 bandwidth
  > especially for
  > 60 meters...
  >
  > I have the Mark-V with TCXO-6, but actually cannot notice any
  > difference
  > between the standard TCXO-4 and the optional TCXO-6. Perhaps in severe
  > circumstances when temperature is varying very much and you want to
  > make
  > digital communications on one single frequency.
  >
  > For optimal speech fidility I would prefer the standard 6.0 kHz TX EDSP
  > bandwidth.
  >
  > Both the TCXO and 2.4 bandwidth will effect the other bands too.
  >
  >
  >
  > 73, Hans Remeeus.
  > Ham Radio: PA1HR
  > www.remeeus.nl
  >
  > Communication is about people, the rest is technology.
  >
  >
  > ----- Original Message -----
  > From: "Bob Main" <bobmain1 at alltel.net>
  > To: "MarkV" <1000mp at mailman.qth.net>
  > Sent: Wednesday, August 04, 2004 1:32 AM
  > Subject: [1000mp] Why??
  >
  >
  > I've had a senior moment here.  Someone earlier today mentioned that in
  > order to work 60 mtrs legally you needed the TCXO and then you needed
  > to
  > change menu 5-9 to 2.4.  It's default is 6.  Now why do I have to do
  > this?
  > I have the TCXO and it is installed and I changed 5-9 from 6 to 2.4,
  > but
  > why?  Also what effect does it have on other bands/modes?
  >
  > Bob
  > KB4CL
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