I strongly agree, Andy. When folks say that it's the computer that makes
the QSO, I observe that 1) I know no one who can read RTTY without some
form of decoder, and 2) the computer did not put up my antennas, build
my station, learn propagation, learn electronics, physics, transmission
lines,
PA5Y
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Wes
Sent: 05 July 2019 15:08
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Digital modes on 144MHz only
That isn't quite right either. The preamp gain must be much higher than the
following loss
Our first commercial 11 metre dish earth station built in 1984 had a
4GHz 60dB gain, 33 Kelvin, electrically cooled two stage parametric LNA
at the feed horn. the cable to the receive system was LDF4-50 with 20dB
loss to a six port passive splitter.
The LNAs despite being pressurised constantl
The OP was talking about 144 MHz. For weak signal work I can't imagine not
using a mast-mounted preamp. Even with sub 1 dB NF devices (that we paid dearly
for when I was on EME) located in the shack, line loss is a killer.
Wes N7WS
On 7/4/2019 10:01 PM, Jim Brown wrote:
In today's world, a m
you can. This saves the
expenses for a preamp.
This applies to the RX path. I'm not talking cable quality or output power for
TX.
> Message: 15
> Date: Thu, 4 Jul 2019 17:11:58 -0500
> From: Bob McGraw K4TAX
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Digi
gt; To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Digital modes on 144MHz only
>
> . Start with a mast mounted low noise preamp, then low loss
> feedline such as 7/8" hard-line, and such. Remember, loss in the
> feedline adds to receiver noise.
> .
Hi All.
Internal transverter possible to use but with external BPF
de 4z5cp
-- Original Message --
From: "Michael Walker"
To: "Elecraft Reflector"
Sent: 05.07.2019 14:43:36
Subject: Re: [Elecraft] Digital modes on 144MHz only
Hi
These are the Transverte
both the TX and RX
> performance is inferior to the K3S with either of the above transverters.
>
>
> 73
>
>
> Conrad PA5Y
>
>
>
>
> ________
> From: elecraft-boun...@mailman.qth.net on
> behalf of Kjeld Holm
> Sent: 04 July 2019 20:31
> T
s.
73
Conrad PA5Y
From: elecraft-boun...@mailman.qth.net on
behalf of Kjeld Holm
Sent: 04 July 2019 20:31
To: Elecraft Reflector
Subject: [Elecraft] Digital modes on 144MHz only
Digital modes on 144MHz only
I plan for a second station to use for digital modes o
In today's world, a mast-mounted preamp is a waste of effort for the
vast majority of hams because circuit noise in the receiver is rarely
the limitation on what we hear. Rather it's all the trash from the
electronics in our homes and homes of our neighbors, in addition to
power line noise. I'v
PM
To: Elecraft Reflector
Subject: [Elecraft] Digital modes on 144MHz only
Digital modes on 144MHz only
I plan for a second station to use for digital modes on 144MHz only. If you
look at performance only (no price, no ergonomics, no use outside digital
modes on 144MHz) what would you prefer
1)
Make sure you balance the station receive performance with that of the 1
KW amp. Power is easy to generate. Low noise receive performance is
a challenge. Start with a mast mounted low noise preamp, then low loss
feedline such as 7/8" hard-line, and such. Remember, loss in the
feedline add
I don't know the '9700, but if you already have a K3(S), I would say an external
transverter like an XV144.
Wes N7WS
On 7/4/2019 11:31 AM, Kjeld Holm wrote:
Digital modes on 144MHz only
I plan for a second station to use for digital modes on 144MHz only. If you
look at performance only (no
Digital modes on 144MHz only
I plan for a second station to use for digital modes on 144MHz only. If you
look at performance only (no price, no ergonomics, no use outside digital modes
on 144MHz) what would you prefer
1) K3/K3S with internal transverter
2) IC-9700
In both cases I plan to u
I agree, I'd love to see WSPR support in the KX3!
--
View this message in context:
http://elecraft.365791.n2.nabble.com/Digital-modes-tp7624403p7625753.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing
Sorry. Something else changed.
Antenna?
Mode?
To name two
Sent from my iPhone
...nr4c. bill
> On Jan 30, 2016, at 10:27 AM, Larry Snyder wrote:
>
> PSK31 and JT-65 stopped working on 40 meters. . Initially I see the PO at 45
> watts but then it immediately backs off to a fraction of a watt w
PSK31 and JT-65 stopped working on 40 meters. . Initially I see the PO at 45
watts but then it immediately backs off to a fraction of a watt with no or
very little modulation on the P3 with the transmit monitor.
I change to 20 meters and everything works just fine. Same computer, same
everythi
Larry,
Try doing the TX Gain Calibration. It is quite easy to do from K3
Utility. If it fails in K3 Utility, then try doing it on a band by band
basis as indicated in the Calibration section of the manual.
73,
Don W3FPR
On 1/30/2016 10:27 AM, Larry Snyder wrote:
PSK31 and JT-65 stopped wo
On Wed,9/16/2015 8:45 PM, Steve Lund wrote:
Check to make sure that the Mark frequency is the same on the K3 and MMTTY.
The defaults are not the same. And make sure that the TX Mark frequency is
the same as the RX frequency.
YES! That's a BIG one. If the K3 tones are not the same as the MMTTY
I had a few similar problems when starting up my new Win7Pro PC today.
Check to make sure that the Mark frequency is the same on the K3 and MMTTY.
The defaults are not the same. And make sure that the TX Mark frequency is
the same as the RX frequency.
If you are using VOX make sure that it is on
On Wed,9/16/2015 2:20 PM, Bob McGraw - K4TAX wrote:
Are you in USB mode or TX Data mode on the radio?
Rich is talking about RTTY, which the K3 transmits LSB. On Elecraft
radios, use AFSK-A or FSK-D for RTTY, which, I believe, also bypasses
the COMP, and sets EQ to a fixed high pass filter wit
Are you in USB mode or TX Data mode on the radio?
I use TX Data very successfully. And when I work AFSK I do switch to
ALT mode which would be LSB mode in TX Data. Otherwise, TX Data us a
USB mode. The nice thing about using TX Data mode is that it negates
the COMP and EQ values. When goin
I had this working, but now can’t figure out how I did it, cuz it’s not working
again.
Running Windows 7, N1MM+, K3S connected via USB.
CW and SSB work fine, including macros.
On RTTY (MMTTY), if I hit any macro key, the radio keys up (PTT), but there is
no diddling. At that time, I see the c
015 3:57 PM (GMT-05:00)
To: Elecraft
Subject: [Elecraft] digital modes
Can anyone point me to information telling me how to hook my K2 up for
digital modes please? I am interested in RTTY and PSK31 mainly. I have the
SSB module in my K2. Thank you ve
Can anyone point me to information telling me how to hook my K2 up for
digital modes please? I am interested in RTTY and PSK31 mainly. I have the
SSB module in my K2. Thank you very much. 73 Bruce ve5rc
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Elecraft mailing list
Home:
Joshua,
Start out taking it one step at a time.
Receive first --
All you need to receive data modes is to connect the KX3 headphone jack
to the soundcard line in. Fldigi should show you some signals.
Configure the soundcard Line In level as well as adjust the KX3 AF
Gain. Set the mode in th
So, I'm wanting to get my feet wet with some digital modes (mainly PSK31
and RTTY right now). I have the KXPKT cable set and a Logitech USB sound
card. Now what?
I already have FLDigi. I connected everything up once and got diddly, so I
don't know what I did wrong (Also, if it's any help, if I
I had no plan to have digital capability, but it's sure nice that the K3
(and KX3) have digital capability. W1AW/9 recently posted to LoTW, three
RTTY and one PSK31 QSOs confirmed. A nice group of digital QSOs on my
LoTW QSO page this morning. And thank you W1AW/ operators, it's been a
fun year.
J
Are there any plans to implement Olivia/Contestia into the KX3? I'm finding
these digital modes are wonderful when using sub-optimal antennas or in a
noisy location to conduct rag-chews, and I've love to be able to utilize
these when out camping to talk with friends since I'm running QRP, without
a
Don,
Make certain the SignaLink is set for line level output, then in SSB
mode, set the MIC select for LINE and adjust the audio input level.
After that, turn MIC+LIN to ON and the mic gain knob will control only
the mic level (the line level should stay as you set it).
That should allow you
I am trying to configure my K3 to TX/RX digital comm in SSB mode for MARS
setup. I am using Signalink USB with FLDIGI and HRD
with little success. I have to manually switch between the DATA and SSB
modes to TX and wonder if there is a config
parameter that will allow TX/RX in USB mode. Contact me
Ted,
I use the DM780 portion of HRD for digital modes. It runs PSK, AFSK
RTTY, and a host of other modes quite nicely. In the interests of full
disclosure, while I don't have financial interests in HRD, I am a beta
tester for them.
Hope this helps.
73,
--Ian
Ian Kahn, KM4IK
Roswell, GA
With a spiffy new computer in the Shack and no digital programs loaded on
it, I can start all over again.
What is the good wisdom for programs initially to operate AFSK RTTY
and PSK
.. a combined program like FLDIGI or separates like maybe MMTTY and
Digipan?
Some local folks have suggeste
Don's fixed level audio output is "what the doctor ordered" for digital
receive. Couple that with a small SPDT reed relay to switch audio
input between the mic and a separate AFSK/PSK/JT65A/etc audio input and
drive the relay with a "Digital PTT" input and you have the complete "no
cable swapping
Chris,
I built Don's fixed audio output on perfboard--very easy to do and works
well. I coupled it with a Tigertronics SignaLink for a clen, compact
solution.
73,
Chuck
NN7U
--
View this message in context:
http://elecraft.365791.n2.nabble.com/Digital-modes-interface-for-K2-recommendations-
12:37 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Digital modes interface for K2 - recommendations sought.
I'm looking into digital modes such as Contestia or Olivia. Would anyone be
able to suggest a suitable interface K2 <-> PC for the experiment?
I'm currently using fl
18, 2012 1:35:01 PM
Subject: Re: [Elecraft] Digital modes interface for K2 - recommendations sought.
Chris,
Not a full solution, but you may want to look at the K2 Fixed Audio
Output on my website www.w3fpr.com. There are no boards left and no
kits available, but the circuit is simple to wire on pe
Chris,
Not a full solution, but you may want to look at the K2 Fixed Audio
Output on my website www.w3fpr.com. There are no boards left and no
kits available, but the circuit is simple to wire on perfboard - it is
all audio frequencies and nothing is critical - just a simple LM386
audio ampli
I'm looking into digital modes such as Contestia or Olivia. Would anyone be
able to suggest a suitable interface K2 <-> PC for the experiment?
I'm currently using fldigi on a PC and a web cam microphone to copy cw over
the K2 speaker. It works, after a fashion.
Thanks,
Chris
NQ8Z
--
View th
As I was trying to point out before, the availability of a variety of
modes on rigs like the K3 encourages a variety of operating styles. My
observation, like that of the two appended remarks, is that modes such
as RTTY, PSK, Olivia and others seem to encourage a bit more rag-chewing
than does,
Just a note - HRD will support everything in the K3. Wayne is working very
hard on the infernal software, I'll upgrade HRD when there's anything new.
FWIW I am bogged down in SSTV land - http://www.hb9drv.ch/sstv/sstv.htm -
and looking after two spaniels for the next 10 days. The spaniels take
Sid Leben wrote:
>I would like to see more of the K3 features in HRD, such as ³CWT² & ³RIT².
Sid, I will guarantee you that almost all functions of the K3 will
be on HRD. Very simple to state as that software writer extraordinare,
Simon, has his K3. I also beleive that you might in the futur
I am using HRD/DM780 with a ³Navigator² interface. They work great, kudos
to Simon & Glenn.
I am using all for PSK31 as well as the Navigator for a separate WSJT/JT65A
application.
I would like to see more of the K3 features in HRD, such as ³CWT² & ³RIT².
It may be there already, just have not f
Years ago, Kantronics (Lawrence, KS) had a CW to RTTY box...and then had the
RX RTTY displayed on the front of the box. You had to read fast.
It took some time to get the hang of sending Morse and sending RTTY, but it
could be done Sloppy code sending was a big "no-no." Using a CW
Vojtěch,
Please joins us at gmfsk-devel, a Yahoo group for gmfsk development.
Your project sounds exciting.
Leigh/WA5ZNU
On Mon, 15 May 2006 12:40 pm, Vojtěch Bubník wrote:
I am porting GMFSK by Toni Maninnen to Win32 and optimizing it for fixed
point arithmetic..._
Hi Eric and Wayne, and other Elecraft fans.
I am working on a digital teletype program for PocketPC. The software could be
downloaded from http://pocketdigi.sourceforge.net including sources. I am
porting GMFSK by Toni Maninnen to Win32 and optimizing it for fixed point
arithmetic - ARMs do not
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