I will be QRV all weekend on 1296.020 CW during the European window and during the Asian window.
Please turn on your radios and work me.
I don’t care if you worked me 5 times before. We need activity.
Remember the EME net on 14.345 Mhz at 1500 UTC saturday and sunday.
73
Steve N4PZ
Hi EME'ers
I was QRV in both part of the februar ATP and found much better condition than expected
and good activity. Thanks too all for the QSO's and for showing up to make this Event to
great fun. I worked the following stations:
Date: Time UTC: Call: TX/RX:
----------------------------------------------------------------------------------------
16. Feb. 2013 1043 YO2AMU O/RO
1107 LZ1DP O/RO (539/-
1128 F9HS O/RO
1143 OK1VVP O/RO
1204 SP4K O/RO
1215 I3EVK O/RO
1238 IZ2DJP O/RO
1252 SM2CEW O/RO (539/529)
1302 JH0WJF O/RO (539/-
1328 UN9L O/RO
1834 N4GJV O/RO
1907 IK2DDR O/RO
2012 SM7WSJ O/RO
Thanks and see you all again in the March ATP.
Best 73, Jorgen OZ1HNE.
Using here a K2 with a DEM transverter on 144
Reception of EME signals is good ( better than my IC-746)
But
I had to re-use the IC-746 again due to the fact that my K2 can not remove the noise from an electric fence
I use K2 with preamp and AGC off .
I was looking into the MODS for the NB of the K2 and tried them all
1) Adding 100Nf on emitter Q2
2) Increasing / decreasing values C11/C12
No effect
I looked into the NB of the K3 ( both are using MC1350 , amplifier with AGC )
K2 has one MC1350 , K3 has two
K2 has RC network on output MC1350 . K3 has tuned LC output circuits
AGC control on the K3 is done different than in K2
Measured the AGC of my K2 NB circuit .. it sits on 2.7 volt ( pin 5 MC1350 ) I do not see any change in voltage what ever I do
Two questions ..
1) Any other tricks to do on the NB circuit in the K2
2) Any K2 owners that could measure voltage on pin 5 on the MC1350 of the noise blanker , do you see any change if tuned to a station or rx -ing noise ( NB switched on)
My next step
Remove ACG circuit on mc1350 .. and set it to max ( pin 5 at 0 volt ) Add capacitor in output circuit of mc1350
Rick Muller | IE Engineer
ASML | Cross-sector Structural Improvement
8A.04.013 | De Run 6501, 5504 DR, Veldhoven
+31(0)40 268 3884 | rick.muller(a)asml.com<Mailto:rick.muller@asml.com>
--
The information contained in this communication and any attachments is confidential and may be privileged, and is for the sole use of the intended recipient(s). Any unauthorized review, use, disclosure or distribution is prohibited. Unless explicitly stated otherwise in the body of this communication or the attachment thereto (if any), the information is provided on an AS-IS basis without any express or implied warranties or liabilities. To the extent you are relying on this information, you are doing so at your own risk. If you are not the intended recipient, please notify the sender immediately by replying to this message and destroy all copies of this message and any attachments. ASML is neither liable for the proper and complete transmission of the information contained in this communication, nor for any delay in its receipt.
Dear Moonnet,
I have been interested in the new freescale based amplifiers since I first
heard of them on Moonnet. There are an increasing number of options for
getting one of these amps. M2 and W6PQL both seem to be excellent companies
and have been discussed on moon-net. There is also the choice of building
your own amp from the individual transistors, to kits, to modules, all the
way to plug and play amps. All requiring varying amounts of skill time and
money.
One choice I do not recall hearing discussed on Moonnet was Italab. They
produce what they call a Box. While it is not a complete plug and play amp,
and has no relays, meters, etc. It does seem to have a number of good
features built in, including SWR protection, at a very reasonable price.
Especially if you do not have to pay the VAT.
http://www.dolstra.nl/Italab.htm
Does anyone have any personal experience with Italab, particularly with
their "Boxes"? They seem to have HF/6M, 144 and 432.
All opinions welcome, good or bad, on or off Moonnet.
Thanks,
73,
Bob
kd3uy
Hi All,
Does anyone have any information regarding the next EME conference,
which I believe may be in France in 2014?
Dates? ..... Location? ..... Venue?
I need to start planning soon!
cheers,
Allan
VK4EME
Dear All,
please find below message from Doru.
tnx & 73
Costas
SV1OAA
>
>
>
>---------- Forwarded message ----------
>From: Doru Zaslo <yo2amu(a)hotmail.com>
>Date: 2013/2/21
>Subject:
>To: "moon(a)moonbounce.info" <moon(a)moonbounce.info>, Doru Zaslo <doru.yo2amu(a)gmail.com>
>
>
>
>Can somebody help me with an information regarding a device (out of service) inside my TR144H+40 2m transverter?
>It is a MMIC device coded as "o5"(underlined) and used as post mixer amplifier, between two bandpass filters.
>Please look at attachement!
>Thank you!
>73 de Doru, YO2AMU.
>
>
>
>
Paul,
Most of us would not describe our eme systems by adding up all the
cable lengths. Each antenna feed from the splitter is in parallel
with the other feeds so loss should be the same in each "phasing line".
Not exactly sure from your description if you are installing four
yagis or four x-yagis for H and Vpol. If the latter your feedline
should run behind the reflector and not down the antenna booms or
H-frame structural members.
I run my eight phasing lines (for four H/V x-yagis) down a small
aluminum pipe connected to the rear end of my yagis. Half way
between the upper yagi and the lower yagis I come off with another
tube on a diagonal to connect to the main array crossboom where my
dividers are installed. It takes 18-feet per line to reach the
divider from one antenna. If I didn't run on a diagonal my lines
would be about 6-foot longer. The diagonal tube has a second
benefit as it forms a triangle which makes the array more rigid.
If I added all eight phasing lines my total would be 144-feet. I add
two 10-foot lines from the two 4-way dividers down to my relay/preamp
box (attached to the side of the Hazer lift). Having the box mounted
there is much more accessible than if located with the splitters, but
this does add 0.1 dB loss ahead of my preamps.
Hope this is helpful.
Ed - KL7UW
At 07:20 AM 2/20/2013, Paul Decker wrote:
>Again, thanks to everyone for even more input, I'm trying to gather
>new ideas to squeeze every bit I can out of my system.
>
>
>A couple people have commented on my 2m array using 50' phasing
>harness. Perhaps I have made a mistake so I will explain how I come
>up with 50'.
>
>a 2m 4 x 12 with 4 meter spacing both H and V fed from the back
>that would make each cable roughly 12 feet, 6 feet down to the
>center, and 6 feet across to the middle. 12ft x 4 antennas is 48
>AKA 50'. Now of course I could go diagnolly which would be about
>8.5' x 4 which is 35 feet.
>
>Then, you still need a single run from the rear center down the
>center of the boom, which will be roughly another 4 or 5 meters to
>the tower mast
>
>Did I make a simple mistake here?
>
>
>Paul
>
>_______________________________________________
>Moon-Net posting and subscription instructions are at
>http://www.nlsa.com/nets/moon-net-help.html
Last weekend (February 17) I tried my first echo test on 77.5 GHz. The weather was good for the test. No clouds, temperature -7C, humidity 85%.
Transmitted signal was simple "E" - 25% on and 75% off with 0.7s period. Three periods to transmitt and five periods pause to switch TX/RX and to receive. Echo signal was -20...-22 dB under noise in ref to 3 kHz BW. To detect echo signal I used my MWCW program. The signal was well seen after 1 min averaging. Test was at elevatings from 30 to 50 deg. Moon noise was about 0.4 dB.
Antenna is 2.4m alu offset dish. Output power of TWTA is about 60W. Noise Figer of RX is about 6dB.
73
Sergei
RW3BP
I have for sale a IC-275H in mint conditions + a FA station manager
(sequencer/voice + cw keyer ec..)
More info incl. some pictures: http://www.dk5ew.de/for-sale/
Thanks for looking.
--
best regards
Erwin/DK5EW
