[Elecraft] PLL/BFO Stability Mod
Ken Wagner
[email protected]
Thu Feb 27 10:42:00 2003
The Version 2 Firmware manual also says page 4 Step 5...
"... and the letter "d" will flash as the firmware records calibration
data."
It is a firmware issue... not a pre/post 3000 issue.
73, Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
----- Original Message -----
From: "Bob Patten" <[email protected]>
To: "David A. Belsley" <[email protected]>
Cc: "Elecraft" <[email protected]>
Sent: Thursday, February 27, 2003 10:31 AM
Subject: Re: [Elecraft] PLL/BFO Stability Mod
| David A. Belsley wrote:
|
| > Yes, Bob, the d is normal. Exactly what it means, I am not sure, but
| > it acts like it is indicating the completion (perhaps "done") of some
| > subphase of the process. I also get the little 5KHz 'glitches' but
| > they are very mild and are not present everywhere. I've never found
| > them a concern. I suspect that is simply part of the nature of the way
| > the VCO works, in 5KHz segments.
|
| OK, three people so far have pointed out to me that the "d" displayed
| during CAL PLL is normal. It is displayed as info is stored. Maybe
| that is written into the new 3000+ manual, but not the one for my old
| S/N 0438.
|
| I suspect the glitches you are experiencing are tick sounds at the 5kHz
| boundries with no change in frequency. I did have those before the mod
| and it was not a problem. My glitches now are distinct frequency jumps.
| This can be very annoying if you are listening to a signal on one of
| these boundries. As you tune across the signal, it abruptly disappears
| with the freq jump! I did not experience this before the mod, and have
| no idea why I'm still experiencing it after re-installing the original
| two xtals and removing the added resistor from RP2...
|
| --
| 73, Bob Patten, N4BP Plantation, FL
|
| E-Mail: [email protected] Website: http://www.qsl.net/n4bp
| QRP ARCI #3412 SOC #1 ARS #799 Whiners #6 FISTS #7871
|
|
|
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