Alan,
Maybe this (low BDR) explains why the ‘7610 provides such a huge amount of
user-selectable attenuation. I think it’s on the order of 45 dB.
Wayne
N6KR
http://www.elecraft.com
> On Dec 24, 2017, at 9:27 PM, Alan wrote:
>
...
> In my opinion, the best apples-to-apples comparison
Sorry my eyes deceived me. It's there.
John_N1JM wrote
> I just checked the list. I don't see it.
>
> John N1JM
>
>
>
> Don Wilhelm-5 wrote
>> Rob’s IC-7610 RX performance measurements are now posted, at
>> sherweng.com. The ‘7610 came in twelfth on his list.
>> The real shocker is the BDR:
I just checked the list. I don't see it.
John N1JM
Don Wilhelm-5 wrote
> Rob’s IC-7610 RX performance measurements are now posted, at
> sherweng.com. The ‘7610 came in twelfth on his list.
> The real shocker is the BDR: only 119 to 122 dB. That’s 30 dB weaker
> than the K3S and only 1 dB bett
Yes, those are the correct resistor values for a 63 dB attenuator, but
as a practical matter, you may find that you have trouble getting that
much attenuation in a single stage due to the stray capacitance of the
series resistor. It might be better to break the attenuator up into two
sections
Thanks, Dave. I used that extra word “full” for no reason. Thanks for
confirming that it does diversity. I had heard that the VFOs weren’t actually
phase-locked. Glad to hear they are.
Merry Christmas,
Al. W6LX
> On Dec 24, 2017, at 8:56 PM, David Bunte wrote:
>
> Al -
>
> The published sp
You're right, it is misleading to compare third-order intermodulation
distortion dynamic range (IMD3) specs of a direct-sampling receiver and
a superhet.
With a superhet, the distortion tends to increase linearly with signal
level, 3 dB per dB for third-order products. So you can measure IMD3
Forgot to ask about good sources for less than a gross of each non-inductive
resistors (carbon film?)
Tom NB5Q
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Forgot to ask about good sources for less than a gross of each non-inductive
resistors (carbon film?)
Tom NB5Q
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I have completed the K3S kit assembly but had questions about the receive
sensitivity. On the advice of Gary, AB7MY at Elecraft Support (Thank you) I
have went through the filter configuration again via the K3 Utility and
improved things to the point that I now hear AM broadcast stations but few
ha
Al -
The published specs indicate "diversity" (not just dual watch). If there is
a difference between "diversity" and "full diversity" it is not something
of which I am aware.
Dave - K9FN
On Sun, Dec 24, 2017 at 11:12 PM, Al Lorona wrote:
> Does anybody know if the "dual RX" is full diversity
Hi George
Tried it and it worked fine.
73
Jim ab3cv
On Dec 24, 2017, at 11:09 PM, M. George wrote:
Jim, you should try the DirectShow feed with Win4K3Suite, I don't have a P3,
but I know it supports a couple of different VGA capture devices and I'm pretty
sure it's using a DirectShow fee
Does anybody know if the "dual RX" is full diversity reception?
Al W6LX
>>> ...to support the "dual RX" capability of the 7610.
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Jim, you should try the DirectShow feed with Win4K3Suite, I don't have a
P3, but I know it supports a couple of different VGA capture devices and
I'm pretty sure it's using a DirectShow feed. There is a trial of
Win4K3Suite, you should give it a try. Then you have an integrated setup
for your K3
How is it possible to compare the dynamic range of a direct conversion radio
with a superhet, where a mode-specific filter can be placed at the first mixer,
with the expectation that direct conversion would give similar dynamic range as
a superhet?
I haven't heard yet a technical way to explain
Smooth CW even at 40wpm. No hiccups noted. I'll use this in RTTY Roundup
and NAQP in January and report back.
73 MCHNY!
jim
On Sun, Dec 24, 2017 at 8:52 PM, Jim Miller wrote:
> A little victory here for me. Finally downloaded a new driver for my
> Startech USB3 video capture box and also a new
A little victory here for me. Finally downloaded a new driver for my
Startech USB3 video capture box and also a new version of VLC media player
(free, open source, donation would be nice...)
After installing the driver I fired up VLC, opened the media menu, opened
capture device and selected Direc
On 12/24/2017 5:32 PM, Don Wilhelm wrote:
> The real shocker is the BDR: only 119 to 122 dB. That’s 30 dB weaker
> than the K3S and only 1 dB better than the IC-7300.
My guess is that the "Front end selectivity" is not an "A tracking
preselector" but rather a "B Band Pass" and that the bandpass
We all can look forward to the 7610PRO, whatever that means. What an
unbelievable amount of hype proceeded the release of this transceiver...
73 Jeff kb2m
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike VE3YF
Sent: Sund
Mike,
I refuse to speculate on Icom's motives. I just read the results.
73,
Don W3FPR
On 12/24/2017 7:19 PM, Mike VE3YF wrote:
Don:
I wonder if this is a result of rushing the rig to market instead of
getting things correct first.
_
Don:
I wonder if this is a result of rushing the rig to market instead of
getting things correct first.
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*73 De Mike*
*VE3YF
_/http://www.ve3yf.com/_*
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:-) By all means stay far away from shopping areas for the next few weeks.
They're worse after Christmas than before!
I think you're right about KPA500 Remote. Although I'm not at my KPA500 QTH
today, I just powered it up using KPA500 Remote, set fan speed to 2, power
cycled it the amp, and R
Rick;
I am suspecting that the remote software isn’t checking for fan control
properly.
The ^FC; command can both set and read the fan setting; the remote software
should certainly be reading it. There is a command that has not yet been added
to the KPA500 Programmer’s document to report fan spe
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Rob’s IC-7610 RX performance measurements are now posted, at
sherweng.com. The ‘7610 came in twelfth on his list.
The real shocker is the BDR: only 119 to 122 dB. That’s 30 dB weaker
than the K3S and only 1 dB better than the IC-7300. I guess no one is
using these rigs in high-signal conditions.
Yes, I think I've seen something like that but wasn't able to characterize
it succinctly. I often set the fan on 1 or 2 when operating remotely. If I
power cycle the amp, it seems to come up with KPA500 Remote saying the fan
is on 0 when in fact it's still on 1 or 2 ... I think. Two possibilities:
Problem of reported "low audio" on 10 meter FM solved! (actually, there was
no problem)
Thanks to Don for telling me how to find the FM DEVIATION adjustment (under
the TECH MODE sub menu). Once getting there, it was obvious that I didn't
want to change the deviation setting from its default 5
The elves down in Watsonville have been incredibly busy the last few weeks.
Most things got done, but a few are still on the “to do” list. Updating the
KPA500 firmware web page is one of those.
Obviously the latest version (1.54) made it to the web site for the KPA Utility
to find, and I can ver
What’s plugged into the Tec Ant Port?
Sent from my iPhone
...nr4c. bill
> On Dec 24, 2017, at 8:48 AM, Randy Lake wrote:
>
> Good morning all. Merry Christmas.
> After installing a new KXV3B board on my K3 I now, on power up, get a HI
> RFI msg. Any thoughts on where I might look without havin
I run my KPA500 remotely... very remotely
There are times when I am running at full power in a carrier mode that I
turn the fan on high manually. Which is pretty funny when it is blowing
-10C air through it.
Then, when I am done, I turn it down.
But.. there are times when I actually get to the
I believe PWR SET in the CONFIG menu has to be set to 'Per band' for it
to save two power settings - one for barefoot, and one for amp
operation. It is on page 53 of the K3 Owners Manual.
Mike - KI0HA
On 12/24/2017 09:46, hawley, charles j jr wrote:
I updated the KPA500 to 1.54 and went to
The KPA500 utility showed 1.54 available when I clicked "Copy New Files
from Elecraft." The firmware page on the website still shows 1.47 as
the latest production release. Apparently I caught the update with the
utility before they had a chance to update the web page.
Mike - KI0HA
On 12/24/
V1.54 corrects a bug introduced in V1.52 affecting the Power Adjustment
feature. This feature allows you to calibrate the measured power against a
calibrated good power meter.
If you installed the V1.52 beta it is highly advised that you update to V1.54
as it becomes available.
V1.52 corrected
I updated the KPA500 to 1.54 and went to o=Operate on the amp.
The K3 displayed "Operate", but the K3 did not change the power to low drive
power. I do doubt if it had anything to do with the update.
Then I tried to set the power levels switching from Standby to Operate and
back. Still no joy.
Th
Good morning all. Merry Christmas.
After installing a new KXV3B board on my K3 I now, on power up, get a HI
RFI msg. Any thoughts on where I might look without having to tear it all
apart.?
Thanks !
Randy N1KWF
--
Randy Lake N1KWF
73 Gunn Rd.
Keene,NH
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