[Lowfer] Lowfer KE

Tue Nov 24 13:47:14 EST 2020

Sounds good, I will be waiting for it. Thanks again

Kasey

On Tue, Nov 24, 2020, 1:46 PM <jrusgrove at comcast.net> wrote:

> Kasey
>
> You're welcome. Look for package to arrive on Friday.
>
> Jay W1VD
>
>
> ----- Original Message -----
> From: "KA4SEY" <ka4sey at gmail.com>
> To: "Discussion of the Lowfer (US, European, & UK) and MedFer bands" <
> lowfer at mailman.qth.net>
> Sent: Tuesday, November 24, 2020 11:00 AM
> Subject: Re: [Lowfer] Lowfer KE
>
>
> > Jay, No those parts should be enough. Thanks for sending them!KaseySent
> from my Verizon, Samsung
> > Galaxy smartphone
> > -------- Original message --------From: jrusgrove at comcast.net Date:
> 11/24/20  10:33 AM
> > (GMT-05:00) To: "Discussion of the Lowfer (US, European, & UK) and
> MedFer bands"
> > <lowfer at mailman.qth.net> Subject: Re: [Lowfer] Lowfer KE KaseyPackage
> going out today includes 27
> > pF and all parts to make a 0-200 mA rf ammeter. Do you need anything
> else before I pack it
> > up?Jay----- Original Message ----- From: "KA4SEY" <ka4sey at gmail.com>To:
> "Discussion of the Lowfer
> > (US, European, & UK) and MedFer bands" <lowfer at mailman.qth.net>Sent:
> Tuesday, November 24, 2020
> > 9:22 AMSubject: Re: [Lowfer] Lowfer KE> Yes, the PO box is
> good.KaseySent from my Verizon, Samsung
> > Galaxy smartphone> -------- Original message --------From:
> jrusgrove at comcast.net Date: 11/24/20
> > 9:17 AM (GMT-05:00) > To: "Discussion of the Lowfer (US, European, & UK)
> and MedFer bands"
> > <lowfer at mailman.qth.net> > Subject: Re: [Lowfer] Lowfer KE KaseyIs your
> address good on QRZ.com?
> > Jay W1VD----- Original > Message -----From: KA4SEY <ka4sey at gmail.com>Reply-To:
> Discussion of the
> > Lowfer (US, European, & > UK) and MedFer bands <lowfer at mailman.qth.net>To:
> Discussion of the
> > Lowfer (US, European, & UK) and > MedFer bands <lowfer at mailman.qth.net>Sent:
> 11/23/2020 8:13:23
> > AMSubject: Re: [Lowfer] Lowfer >
> >
> KE________________________________________________________________________________Jay,If
> you would
> >  > mind, I think all the trouble I've got with the transmitter it would
> definitely help to have
> > those > parts. I'm sure I can build that meter no problem. KE will be
> off the air for a few days
> > because > I'm having issues with the chips so I can be working in that
> while the parts ship.
> > Thanks > againKaseySent from my Verizon, Samsung Galaxy
> smartphone-------- Original
> > message --------From: > jrusgrove at comcast.net Date: 11/23/20 6:03 AM
> (GMT-05:00) To: "Discussion
> > of the Lowfer (US, > European, & UK) and MedFer bands" <
> lowfer at mailman.qth.net> Subject: Re:
> > [Lowfer] Lowfer KE > KaseyUnfortunately, the low range RF ammeter is no
> longer in the meter box
> > ... I must have already > given it away. The next bigger one I have is
> 1.5 amp full scale ...
> > which wouldn't be suitable. > These meters are highly non linear ... the
> first mark up on the
> > scale is 0.5 amp so there's no > chance you could see enough of an
> indication to work with.I do
> > have the 27 pF silver mica caps and > some parts for a homebrew rf
> ammeter if you need them.Jay
> > W1VD ----- Original Message -----From: > KA4SEY <ka4sey at gmail.com>Reply-To:
> Discussion of the
> > Lowfer (US, European, & UK) and MedFer bands > <lowfer at mailman.qth.net>To:
> Discussion of the
> > Lowfer (US, European, & UK) and MedFer bands > <lowfer at mailman.qth.net>Sent:
> 11/22/2020 9:33:30
> > AMSubject: Re: [Lowfer] Lowfer KE_______ >
> >
> _________________________________________________________________________Yea
> if you wouldn't mind,
> >  > I really appreciate that. I believe you said you had the ammeter as
> well? If you dont mind I
> > think > it could use it now that I've thought about it. It should really
> help me the most. For any
> > other > information please let me know. Thanks againKaseySent from my
> Verizon, Samsung Galaxy >
> > smartphone-------- Original message --------From: jrusgrove at comcast.net
> Date: 11/22/20 7:13 AM >
> > (GMT-05:00) To: "Discussion of the Lowfer (US, European, & UK) and
> MedFer bands" >
> > <lowfer at mailman.qth.net> Subject: Re: [Lowfer] Lowfer KE KaseyCan drop
> a couple 27 pF silver mica
> >  > caps in the mail ... along with the resistors. Just say the word.Jay
> W1VD----- Original >
> > Message -----From: J D <listread at lwca.org>Reply-To: Discussion of the
> Lowfer (US, European, & UK)
> >  > and MedFer bands <lowfer at mailman.qth.net>To: <lowfer at mailman.qth.net>Sent:
> 11/22/2020 2:26:24 >
> > AMSubject: Re: [Lowfer] Lowfer KE___________________ >
> > _____________________________________________________________Kasey, it
> would appear from your >
> > schematic that a few components may be missing, thereby preventing your
> oscillator from being as >
> > stable as it needs to be. This same situation is found in a commercially
> made sorta-kit rig for 22
> >  > meters, and beacons using it there can often be identified by their
> tendency to wander or even >
> > outright jump around in frequency from day to day.A Pierce oscillator
> needs capacitance from both
> >  > legs of the crystal to ground as part of a phase shift network. There
> is stray capacitance >
> > present, of course, without which it would not oscillate at all; but
> that is neither of sufficient
> >  > magnitude nor stability to ensure reliable oscillation at the design
> frequency of the crystal. A
> >  > good starting value for capacitors for a typical 3 MHz parallel
> resonant crystal would be 27 pF
> >  > each.In addition, there needs to be a series resistor between pin 10
> and the crystal. It serves
> >  > three functions that each a ffect frequency stability to a certain
> extent: it isolates the
> > crystal > somewhat from the complex impedance of the gate output, it
> limits current and thereby
> > power > dissipation in the crystal, and it is part of the phase delay
> network. As a rough first >
> > approximation, I'd suggest 1 K, maybe as high as 2.2 K.Finally, the
> shunt resistance across the >
> > crystal could be a little higher in value for 3 MHz operation, such as
> 3.3 M to 4.7 M. It's not >
> > terribly critical, but it is preferable to operate it with as high a
> value as will allow for >
> > reliable startup. Lowering the operating Q of the crystal with a low
> parallel resistance could >
> > allow a crystal to jump too easily between primary resonance and any
> secondary resonance modes it
> >  > may have.These comments are some basic rule of thumb guidance. For
> more detailed treatment of >
> > Pierce oscillators implemented with logic gates, I believe Crystek still
> offers this >
> > article:
> https://www.crystek.com/documents/appnotes/pierce-gateintroduction.pdfJo
> hn >
> >
> Davis______________________________________________________________Lowfer
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