There was very nice CW activity during ARRL contest this year (on all bands except 2m from US) and it is unfortunate I did not have a lot of free time for it.
I also “worked” JT65 logger eme (I thought: who is going to find out anyway??) and apart from constant chatter I also found JAMMING.... a lot of Jamming, even from its own creator!!?
Check a small part of it from N0UK logger:
11/19 17:04 VE3KH you being jammed by K1JT and W6YX (W7IUV Larry WA DN07dg 22.214.171.124)
11/19 17:05 Why Larry .... they on 142 also? (VE3KH Kevin ON FN03aj 126.96.36.199)
11/19 17:06 They are calling me to get a contest poitn and it ain't gonna happen!! (W7IUV Larry WA DN07dg 188.8.131.52)
11/19 17:08 Thansk Larry 73 ... Yes, I have been jumped by a quite a few stations (VE3KH Kevin ON FN03aj 184.108.40.206)
11/20 17:47 Also hr k1jt calling me -22 but not ans him (KN4SM/5WL/KW Jerry VA FM16qt 220.127.116.11)
11/20 18:02 Contest = reduced courtesy! (K5DOG/2M Stevedog NM DM52xw 18.104.22.168)
11/20 18:04 Yes, K1JT and W3SZ can hear on gold tooth. (K5DOG/2M Stevedog NM DM52xw 22.214.171.124)
One thing I wouldn’t regret missing on EME is JAMMING!!!
GL 73, Petros SV3AAF
I have this QRO-amplifier for sale but because of the weight and size, only local pickup is possible.
Think ít´s only interesting for amateurs located in Sweden.
It is advertised on:
Is there anyone using this SDR receiver for EME ? I looked at their homepage & only saw folks using it for satellite work. I believe the Fun dongle PRO covers from 60 MHZ to 1700MHZ & works with MAP65IQ. Can someone who is using it give me some details on performance & set up please.
A long time ago, I used someone's wonderful site that had a comprehensive
listing of most 432 and above EME stations, that, if you clicked on a
listed callsign, you got usually a photo of the Station Op, station
details, and photos of antenna array/Dish. the images came centered on
the same listing page. I cant get to that site this afternoon, so far...
Anyone have a URL?
Best, 73, Pat Barthelow, AA6EG apolloeme(a)gmail.com
Just made a little progress today...reflector and 2 directors mounted. Ran test just for the h__ of it. With it sitting on saw horses in garage SWR was like 1.2 to 1 but at 138.5MHz or so. I know it will change after I mount more elements and of course it can't be tested properly where it is. I don't know if its just the DE length that is making it low in freq but at least I know I can get a low SWR at some frequency.
Will cut and add more elements tomorrow. This is just the rear half of the yagi which is 12 1/2 ft. It is 1" square tubing with 1/16" wall so will need and overhead brace of course and I must figure out what I will use to splice the 2 12 1/2 ft booms...because the last director on the end will take more than a 25ft boom I will add an extension for that front director.
Out of all of radio I think I like building antennas the most of all.
Member: ARRL and Pacific Northwest VHF Society
Member: Hearsat Satellite Monitoring Group ( www.hearsat.org )
In the process of setting up for the new IQ+ to work with Linrad and
Map-65. Realized that in my one year old Quad Core Computer ( and just
checked the specs of what is on the market now), they have pretty much done
away the old PCI standard required by the Delta 44 audio card. I do have
an older P4 ( Windows XP) that has a PCI port and I guess I can run Linrad
on one machine and Map-65 on the other ( once I figure out how to get them
to talk) , but has anyone found an alternative audio card that is compatible
with the new PCIe standard or used a usb based audio card with these
application? I also see that that there are PCIx to PCI converters,
anybody have any luck with those?
As a side note, as a user of Map-65IQ with a down converter and SDR-IQ, if
the FunCube is even closely equivalent , for that price, I would run as fast
as I can and buy one. Using Map-65IQ has opened up a complete new
dimension to my enjoyment of EME. With just a T connector and a coaxial
relay in the shack , I have a simple system where I monitor the band with
Map-65IQ and then switch to my-TS-2000 and WJST to work a station. Also
check out High Sierra Microwave, who offers a 2M 2 pole filter and preamp
specifically for the Funcube.
Les W2LPL (W2DBL)
First of all you do not owe an apology to anyone. Regarding your mail below and K1JT answer to you with respect to serious collision problems on Nov 3-4 on 144MHz - as you and DF2ZC well point out - , due to Marconi cw Memorial Contest (the biggest most popular EU terrestrial contest), here is the history so as to set the record straight:
In August 2011 K1JT e-mailed a certain group of US plus EU stations (the latter below) who he had chosen, on possible ARRL 2012 EME Contest dates. Being invited to submit my opinion, i was happy to provide a constructive input as best as i could. After discussions between all, i personally did NOT agree with the dates which were finally put forward by K1JT to ARRL for 2012 (i now still wonder why those were finally chosen as we had a ''tie'' as you will see below...but no hard feelings anyway as this is obviously ARRL decision).
In the e-mails exchange between us all, i argumented exactly why i had proposed different weekends.
One proposal favored by K1JT, IK1UWL, G3LTF, for 2012 called the ''late option'':
October 6-7 +21 2.1 2.3G and Up
November 3-4 +20 5.1 50-1296
December 1-2 +18 4.5 50-1296
The other proposal was by myself called the ''SV1BTR option'' (i supported the best compromise on loss vs declination, plus no problem with 144MHz Marconi Memorial or IARU Region 1 UHF Contests):
September 29-30 +6 1.8 2.3G and Up
October 27-28 +9 3.5 50-1296
December 1-2 +18 4.5 50-1296
As ARI EME Contest was September 29-30 , when told by Giorgio, i was open for the Oct 6-7 weekend for 2.3G and up as i e-mailed IK1UWL. So the ''latter'' proposal with microwave weekend being in those 2 whereabouts and the rest as above, was favored by OK1DFC, W5LUA, myself.
No specific dates' choice was submitted by DL7APV, SM2CEW, K2UYH, W3SZ in the mails i was Cc.
F5SE also did not propose any contest weekend which coincided with the big terrestrial cw vhf contest and he also liked the Oct 26-27 weekend for 50-1296MHz last leg (with the other 2 weekends being in September).
I close the subject here, chose to reply to this issue so that readers know the story as it really happened. Not interested to prolong this to any form of debate.
Thank you & 73
Date: Wed, 30 Nov 2011 09:11:24 +0000
Subject: Re: [Moon] ARRL EME Contest Dates for 2012 and 2013
yesterday I sent an Email to moon-reflector with my opinion that the 1st weekend in November for ARRL EME contest (2m) is the worst because the BIGGEST MOST POPULAR CONTEST (MARCONI MEMORIAL) TAKES PLACE in
Today I got the below Email by K1JT.
He likes to have an apology for some people.
1. In the mail of K1JT I see EUROPE consists of seven (7) people those were asked. Why not on public on the reflector? Also, its a
big difference about the activity in central EU and i.e. northern Norway.
2. DL5MAE sent logs for ARRL EME Contest (maybe not regularly , some of them were JUST LOST /or DENIED ?) . ALso this year
once more my log is on the way. Since the robot does only take CABRILLO I sent it by snail-mail (handwritten)
3. I wrote the mail yesterday to inform the organizer that 2m EME Contest and MArconi Contest is a real problem for Central EU
because of the terrestrial QRM situation! If this would not be understood then I will finish this discussion now and will watch the reflector
with all the complaints of QRM in 2012.
vy 73 de DL5MAE Wolfgang
Von: Joe Taylor <joe(a)Princeton.EDU>
Gesendet: 22:16 Dienstag, 29.November 2011
Betreff: Re: [Moon] ARRL EME Contest Dates for 2012 and 2013
I suppose I should not be surprised to see your complaint about the posted dates for the ARRL EME Contest in 2012, since the information came in an email from me.
> A quiet 2m EME contest to be expected in 2012 in November as
> Europe wasnt asked.
You are 100% wrong to suppose that "Europe wasn't asked".
I happen to know that the following operators were all asked for their opinions:
SV1BTR G3LTF SM2CEW DL7APV OK1DFC IK1UWL F5SE
... along with a number of NA operators who are regular contest participants.
Perhaps the ARRL should have asked DL5MAE before proceeding with the advice they did receive?
On the other hand, as far as I can recall DL5MAE hasn't entered this contest for some years...
You owe an apology to all those who responded with their best advice on this scheduling question.
-- 73, Joe, K1JT
_______________________________________________ Moon mailing list Moon(a)moonbounce.info http://www.moonbounce.info/mailman/listinfo/moon Please enter/update your standings: http://www.vhf-dx.net/top.html When you decide to remain anonymous I may consider this unpolite and remove you from the list
The info on JT65 operating has been helpful for me. EME is not my
main ham activity, but it is interesting, and I am looking forward to
make my first CW QSO with a big station. I am hearing SV1BTR,
SP7DCS, K5GW, RU1AA, etc quite well at times. I was ready for the
ARRL test but yet another family illness called me away and I only got
to spend about an hour. I do some JT65 but have no interest in SDR
capability at this time and when using the loggers, attention is
divided between the computer and the radio. It is difficult to just
tune the band because of the nature of JT65.
When I started, I read Joe's explanation of the designated frequencies
for random JT65 operation. The explanation of how a bunch of stations
can fit into a small space has been very enlightening. I am
strongly in favor of this. I can operate portable EME from a rural
location with no internet, and this would make it much more
attractive. Birdies would be a problem for some, but 8 Khz should
allow everyone to have some usable space. People could spread out if
made necessary by high activity or for skeds.
The suggested calling frequencies for JT65 and separating the contests
into CW and digital weekends are things I would support. I've seen
the controversy over dates selected conflicting with other contests,
but for strictly EME considerations, CW should have its own weekend.
With amazing, unselfish help from my friend Jimmy, SV1BTR, I learned a
lot about CW operation and equipment. My antenna site (for 4
antennas away from the house) turned out to be unusable because of too
many tall pine trees, limiting my moon time to elevations above 40
degrees even after cutting a bunch of trees. I am using 350 watts
to a single KLM 16LBX near the house, so JT65 is not too bad and CW is
Looking forward to some truly random JT65 operation!
I intended this to go to MoonNet (forwarded) - Ed
>Date: Wed, 30 Nov 2011 10:14:56 -0900
>To: Cliff Sojourner <cls(a)employees.org>
>From: "Edward R. Cole" <kl7uw(a)acsalaska.net>
>Subject: Re: [Moon-net] JT65 Operating Hints
>Of course, so that is why I suggested at least two sub-band segments
>so there would be an alternative. And this is not one calling
>frequency but a small band of freqs. But your point is
>noted. Selection of these "watering holes" will take some
>discussion and thought. How about some one start?
>144.140 MHz should be avoided since it is established for meteor
>This would permit three 2-KHz windows or six operating freqs.
>spaced 1-KHz. Actually we should consider operating with something
>like 200-KHz spacing making 30 operating freqs. inside 6-KHz.
>Just for discussion. Your turn!
>At 09:47 AM 11/30/2011, Cliff Sojourner wrote:
>>my point was you won't find any single frequency that makes everyone happy.
>>On 2011-11-30 10:39, Edward R. Cole wrote:
>>>No reason that you cannot do that. Read my response to earlier posts.
>>>At 07:16 AM 11/30/2011, you wrote:
>>>>finally, Ed suggested a center frequency. but no matter what
>>>>frequency you pick, someone will have birdies there. so the
>>>>reality is we have to be able to move around the band.
>73, Ed - KL7UW, WD2XSH/45
>BP40IQ 500 KHz - 10-GHz www.kl7uw.com
>EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-?
>DUBUS Magazine USA Rep dubususa(a)gmail.com
73, Ed - KL7UW, WD2XSH/45
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-?
DUBUS Magazine USA Rep dubususa(a)gmail.com
I was pretty busy with work and family demands over the past week, and
am just getting around to getting caught up on my Amateur Radio Related
Thanks to everyone who was on 144 MHz EME last weekend, whether or not
you and I were able to complete! In spite of the fact that I slept
through the first 6 hours after moonrise on Sunday, a result being
middle-aged and not sleeping from 6 am Friday to 4 pm Saturday, I very
much enjoyed the weekend and really liked seeing all of the activity on
144 MHz EME although I was only able to work a fraction of it. The ARRL
Contest was a lot of fun, as always, and it was great to see both the
old familiar calls, as well as some new ones!
Based on some emails on this list from the past week, I can see that
there are some nuances to operating with JT65 using WSJT [and MAP65]
that some folks may not be aware of. These were already alluded to, but
I think some more detail regarding them may be helpful. I hope the
hints provided below are well-enough described to be useful to list readers.
I am fairly far along the learning curve for the JT modes, as I've been
using WSJT since the JT44 days, and before Joe Taylor developed JT44 I
was using its predecessor PUA43 with a DSP-10.
In all of that time I have found only one situation where I am 'blocked'
from receiving a signal in one of these modes by another signal using
the same mode. That is when there is an extremely strong local station
whose terrestrial signal produces such a strong signal that my receiver
is either desensitized or filled with IMD-related noise and spurious
signals. When this has happened I have sometimes been able to go to
vertical polarity and reduced the terrestrial signal enough to copy the
EME signals in the pass band, but often this does not provide enough
reduction in the strength of the local terrestrial signal. So I just
move off the frequency until the local station changes frequency. If he
is so strong that the whole band is trashed, then I switch to
transmitting on the same cycle as he is and go look for other contacts
available in the 'new' cycle.
I have never had an occasion where a JT-mode signal coming to me by
means of EME has blocked another JT-mode signal. This is true even when
one of the signals in the pass band is one of the really big guns, such
as W5UN, K5GW, or KB8RQ to name some stateside examples of really
excellent signals [sent out by really excellent operators]. That is not
to say it absolutely couldn't happen, but I have never had it happen
with a lot of operating over a lot of years. I run with my AGC off. I
guess if one couldn't turn off or didn't turn off the AGC and there were
an EME signal triggering the AGC that COULD suppress a much weaker
signal. But I have always kept the AGC off to avoid that. I know that
not everyone agrees with this approach of turning the AGC off. But it
has worked well for me for many years.
The reason that other signals in the pass band are not a problem for me
[or others who are aware of what I am about to point out] is that when
running JT65 using WSJT, one can set the Tolerance [Tol] to 10 Hz, and
separate out one signal from another if they are as close together as 10
Hz. You set Tol to 10 by right clicking on the Tol button until it says
10. Then you SINGLE left-click on the signal you want, and single
left-click on Decode. NOTE that if you DOUBLE left-click on the signal
you want, Tol will jump to 50. That is not what you want if you are
trying to separate out two signals that are closer together than 50 Hz!
You also want to have the FREEZE box checked. I have never had to deal
with a case where 2 signals were within 10 Hz of each other and thus one
blocked the other. Theoretically it could happen that two signals were
dead on top of one another, but I haven't seen it. Note that when I say
that that two signals are [for example] 20 Hz apart, I am not saying
that these signals don't overlap, and that the bottom end of the higher
frequency signal is separated from the top end of the lower frequency
signal by 20 Hz. Rather, the signals are nearly completely overlapped,
with their sync signal frequencies separated by only 20 Hz. The lower
frequency signal sticks out from behind the higher frequency signal at
the bottom end by 20 Hz, and the higher frequency signal sticks out from
behind the lower frequency signal at the top end by 20 Hz. And yet,
with FREEZE turned on and Tol set to 10, WSJT will separately decode
each of these signals when you click on the appropriate signal and then
click DECODE, as described above.
If you want to increase the Tol, then left click on it. It can go as
high as 600. Obviously, you don't increase Tol if you are trying to
separate out signals that are close together. You can also adjust the
Tolerance in MAP65, where the limits are 10 and 1000, and Tol is set in
the same way as described above.
If you watch what some of the most experienced and most successful JT65
stations do, as I have watched them, you will see that they successfully
work station after station with at all times multiple signals in their
pass band. This actually makes operation much more efficient for the
station that knows how to do this. Lets say such a station [which we
will call Station A] is working another station [Station B] at 0 on the
JT65 DF axis, and that there are other signals at 50, 150, 250, 300,
-30, -100, -200, which we will call respectively Stations C, D, E, F, G,
H, and I calling him [or calling the other station].
While Station A is transmitting to Station B he can set the Tol to 10
[or 25 or, except for stations C and G, to 50] and decode the other
stations. Once station B has sent his 73, station A can, instead of
sending 73 [or after sending 73 although that is less efficient] start
calling his choice of stations C through I. After he has worked that
station he can call the next. If stations C through I are similarly
savvy, they will continue calling station A until he has worked them.
For if station A sees that one of them has stopped calling him, he will
move on to the next station on the list he has created from this
'pileup'. By doing this station A doesn't need to repeatedly call CQ,
and by avoiding the need to call CQ and also not sending 73 after the
other station has sent 73, he can cut the number of exchanges per
contact from 7 to 4, nearly doubling his QSO rate. He gets from 7
exchanges to 4 per QSO because in addition to not needing to call CQ or
send 73, the exchanges of station C..D..E..F..G..H..I calling A do not
take any time from Station A's schedule, as Station A copied them while
he was working station B, and he can proceed directly with "C de A FN20
OOO" as soon as he has received station B's 73. This increases Station
A's QSO rate by 75% over what it would be if Station A did not have
multiple signals calling him in the same pass band, or if he didn't know
how to take advantage of what was just described.
I am not a big gun, so I don't get to use this technique as often as I
would like [because I don't have a lot of signals hearing my less-strong
signal], but it fills my heart with joy when I DO see multiple signals
in my pass band after I call CQ, as I know that will increase my QSO
rate. I also find my heart filled with joy when I am in the process of
working someone and I see other signals pop up in my pass band. I know
they will not block my current QSO, and they never do. I am especially
happy if the new station is calling me, but even if they are calling the
other station I consider it a good omen because  if I haven't worked
them I will also be calling them and usually we will also complete a
contact, and  signals in the pass band attract more signals in the
pass band, which leads to more QSO opportunities.
So I prefer to have multiple signals in my pass band, as it makes me
more efficient. I learned this from watching how the big guns [and
DXExpeditions and KP4AO] operate.
Another question that arose on the list during the past week was why a
station using JT65 might call a station and then not reply when that
station called him. There are numerous perfectly acceptable reasons why
this might occur. Each of these has happened to me more than once, and
usually several of them happen to me at different times during a given
contest. Fortunately, #5 hasn't happened to me in a few years:
1. The moon set on him as he was calling you, hoping to get in 'one
more contact' before moonset. Each contest this seems to happen to me
with at least one JA and 1 VK station; i.e., on 2 out of the 4
moonsets. I've also failed to complete with stations East of me when
the moon set on them at their moonset. This one is not a mystery here,
as the software I use tells me the other guy's Az and El as well as my own.
2. Faraday changed, or communications was marginal and so he tried
switching transmit polarization to improve the signal margin and instead
made things worse, so you didn't hear him when he did respond. Then he
gave up. This happens to me occasionally, as my programs which predict
which transmit polarization angle to use for a given receive
polarization angle do not work 100% of the time, and sometimes 'second
guessing' the computer suggestion helps and sometimes it makes things worse.
3. The station called you for many sequences but you didn't hear him
and so you didn't respond to him. Then you DID hear him and you called
him, but he didn't hear your reply, either because Faraday changed or he
changed his receive polarization to see if that would make your signal
better but instead it made it worse, or a local terrestrial station
began transmitting in the pass band, so he gave up and moved to another
frequency unaware that you were calling him. If he was using MAP65, he
might see your signal pop up if you called him more than once even after
he moved off frequency, but if he was sleepy or distracted or calling
someone else he might miss the fact that you were calling him after he
moved off frequency even if he were running MAP65.
4. At his end, WSJT or MAP65 locked up or stopped decoding, or the
computer on which WSJT or MAP65 was running crashed and had to be
rebooted and the program restarted, etc. By the time he got done with
all of that you had moved on to other things [understandably].
5. His 8877 amplifier decided to quit [or other piece of hardware failed].
6. His computer Az/El control program / rotor link decided to quit or
return to parked position for no apparent reason so his array was no
longer pointed at the moon. He didn't figure this out immediately.
7. The station got no response from you with multiple calls, and then
saw a new DXCC pop up on another frequency and left to work that station
just as you decided to start calling him, so he didn't see your call.
8. The station operator, being approximately 60 years of age, and
without any sleep for 36 hours or more due to the timing of the moon
windows for the selected contest weekend, fell asleep in spite of
consuming potentially lethal [but perfectly legal] amounts of caffeine
in a vain attempt to stay awake for the contest, and so missed your call.
9. The operator made any one of a zillion other possible mistakes that
we are all prone to as human beings, particularly when we are operating
in the middle of the night with no sleep.
10. He DID call you but you didn't hear it because of a problem at your
end of the link.
I hope the above is helpful!
Thanks again to all who were on the air last weekend, and