Unfortunately no reply's on my posting, so I guess
I have to dig deeper into the way the CW signal is generated,and do some
wave form checks.
To do this I need some help,because the schematic diagram does not help me.
I woulk like to know the signal path for CW ,I guess it starts with U8 but
With the new 2.04 upgrade I now have RTTY as a mode. Are the BFO settings
tied to the USB/LSB with a fixed offset or can the RTTY BFO settings be
adjusted too?
If so, does anyone have sample RTTY and Inverted RTTY BFO freq values?
Thanks!
Tom K2TA
On 11/6/04 6:35 AM, Tom Althoff [EMAIL PROTECTED] wrote:
...
When operating non-split you would hear the sidetone in both ears. When in
split mode the sidetone would appear to come from either the left or the
right headphone to audibly remind you that you are in split.
If you are working
Tom,
Audible indication of split is certainly attractive, but bear in mind that
the audio is mono in the K2 and the sidetone is injected in the LM380 -
output is a mono combination of audio and sidetone. Two resistors feed the
headphones primarily so that mono headphones will not short out
Tom,
The RTTY mode provides a full set of filter options (4 filter bandwidths)
and with RTTYr mode (like CWr) you have a total of 8 BFOs to use. Remember
that the BFO for FL1 is always used for transmit. You can copy the settings
for SSB (or CW for that matter) to get things started, and
I didn't think about full audio in both ears with sidetone in one...that
WOULD be nice.
I was just looking at doing something at the phone jack directly...lifting
one of the 820 ohm resistors to kill one earphone when split is active etc.
That would affect receive signals as well and might be
Nano,
Sorry you didn't get a response earlier.
K2 keying starts in the microprocessor and exits the associated 8 bit DAC
(U8) as the V-PWR signal. Then it is shaped in the ALC circuits and comes
out as the V-ALC signal (the level of this signal also controls the power
output level). (The
Very recent S/N (851) includes ATU and 30m module; perfect condition and
working to specs. The radio has been completed for about a month, and
I’ve had it on the air for only a few QSOs to check it out. I built this
one for fun and want to sell it to finance building another K1 or K2 as
a
Thanks of the inquiries.
Steve, kx7r
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Help:
i have put my KX1 mods on the HFPack2 Yahoogroup Files..
Go to http://groups.yahoo.com/group/hfpack2/files/
There are the External Power Switching and the 1/2 AA NiCad Battery Mods
there.
The Single Lever Paddle Mod is also there but the picture of the mod is over
in the
'Photos' section
Hi Gang
I just completed my 2nd K2..I sold the first one (#242) a couple
of years ago. The new K2 (#4502) was completed this morning.
This K2 was built with the KAT2, KIO2, KSB2, K160RX, and KBT2
options.
I seem to have rather low power output..at least I remember the
last K2 I
On Sat, 2004-06-11 at 09:37 -0500, W3FPR - Don Wilhelm wrote:
Additional benefit of the RTTY mode - the setting of the mic gain and
compression (SSBA snd SSBC) are independent of that used for SSB.
I'm pretty sure that's only true for compression, not mic gain.
--
73, Brian
VE7NGR
Hi Fred,
Power output varies from K2 to K2, but if you feel that it's low, Gary
can send you a list of things to check.
Regarding the solar-charging issue:
You can probably increase the output of the solar charger a bit. For
example if there's a diode in series, you can replace it with a
Fred,
You do seem to have considerable max power dropoff on 10 and 12 meters.
Re-check T2 to be certain it is wound just like the figure in the manual.
It also helps to mount T2 about 1/8 inch above the board.
The second thing that can hold down max power is the CAL CUR setting - set
it
Good Evening Folks,
There are a few complications for tomorrow's Elecraft CW Nets. First
we have the Sweepstakes in progress so the 20 meter net may be
problematic. I will play that one by ear. If I cannot find a spare kHz
to use for our purposes I may simply cancel the net. The second
Hi to all. Been reading about this rig and looking on the website, learned
a lot so far. Looks like a neat rig, especially the receiver. I have a
couple of questions that you might help me with. For RTTY, does anyone use
this rig for contests and what is the safe level to run it in a contest
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