I have been playing with a new Triquint ULNA device (TQP3M9036). It
Shows a lot of promise. It is like a MAR or MSA device in that it is
50ohm in and out. and has a claimed NF about .4db nf ( their numbers).
I have built several pramps to test them and have gotten even better
than they claim and they cover 50-1296 with ease and NF is .4ish or
below. The S11 and S22 are both great and the OIP3 is +35db also
...very nice device. It has great promise as a good terrestrial LNA.
Preamps are foolproof to build and would cost under $50 if all the best
quality parts are used.
Just for information only ...
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I’m ready on 6cm with the same dish I’m using on 3cm.
Despite the strong local 5 GHz WiFi noise, had a nice 579/569 first QSO with this setup today with HB9Q, thank you Dan !
Setup is a 3.7m dish and 60W at CP feeder.
I can be QRV on 6cm or 3cm most of the days, skeds and tests are very welcome, as usual.
qrv 70cm, 33cm, 23cm, 13cm, 9cm, 6cm and 3cm.
I have a few 2M EME station items for sale.
4) Innovantennas 10 element LFA yagis, complete with 4 port power divider,
phasing cables and chokes. All items purchased from Justin at Innovantennas
approx 3 yrs ago.
Complete package shipped in the CONUS $1000.....
2 port power divider from Innovantennas $50
Q5 Signal (previously DEMI) L144-28HP 28Mhz to 2M transverter (-20dbm to 60
Serial #755, All documentation included
Hello to Lunatics.
Owners of RAS 1deg. and RAS 0.5 deg. rotators and Rot2Prog controllers
can try my free Ras Moon Tracker program.
Program was fully tested with RAS 1deg. rotator by me, because I have
it and use it.
Program can be downloaded here :
Program do not required any installation, open archive and extract
program folder to ur C:\ or any other drive.
I bought a new IC9700 for my station.
Not going to use it for eme, so all good...I thought. But I want to use
a remote preamp with a transfer relay, so I built that (IC9700 provides
no separate Rx antenna input.
But then I realized that when I push PTT on the mic in FM the radio
immediately transmits RF. It has no Tx Inhibit function like my K3 has.
So "apparently" I can key external equipment via the ACC jack (which
"again apparently" requires an 8-pin DIN jack) pin-3. I have a
sequencer that the external "Send" line can control. And my sequencer
does four stage change-over from Rx to Tx: 1-powers off the preamp,
2-engages TR relay, 3-keys amplifier PTT, 4-turns off Inhibit (which is
a +5v level for my K3).
Only reference to ALC in the IC9700 Basic Manual is page 13-1 showing
the jack pin-out. ALC is shown -4v to 0v with 10K input impedance. How
do I generate -4v from my +5v inhibit voltage regulator? Can I just
reverse the connections or do I have to find a negative voltage
regulator? I'm hoping (no instructions from Icom on how to use ALC in
the manual, and googling reveals nothing) ALC = -4v means minimum RF
output (would -5v hurt the radio?).
Also one on-line reference mentioning adjusting the Tx keying delay
(How?). Not mentioned in Basic Manual, Advanced Manual, or Service
Manual. You don't know what I want to do to Icom's technical manual
dept. Worst (almost) manual I have ever read (I had a job as tech
manual writer once upon a time, so that is my expert opinion).
I figure these issues are not new to those using the IC9700 (BTW I have
the Bonar board and a 49.152 MHz PLL on its way to me to fix the
frequency stability issue).
Ed - KL7UW
So, are there some good designs for a 10GHz LNA around? I have the dish
organised, a good transverter on the way, a good TWT ready to roll ...
just need to source a good LNA now.
This coming weekend is the 9cm AW.
The idea of the Activity Weekends is to get all those with capability on a specific microwave band to come on and make QSOs, run tests for those needing signals, test new feeds, preamps etc. No pressure, no scoring, use the reflector, use any mode, just be active on the band and make QSOs.
If you can make a measurement of sun noise and, if possible, moon noise levels and send them to me I will compile a G/T vs dish diameter chart lke the one that is in this months EME NL.
I hope to be active through quite a lot of the weekend although the wx for the southern UK does not look good.
73 GL Peter G3LTF
6m dish and 90W
Probably the best solution is simple use of separate RX cable from LNA to RX
LNA is always terminated by relatively long thin cable with higher
attenuation on frequencies above the band.
73 de OK1VPZ
From: Moon-net [mailto:email@example.com] On Behalf Of
Sent: Wednesday, June 30, 2021 12:00 PM
Subject: Moon-net Digest, Vol 528, Issue 4
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"Re: Contents of Moon-net digest..."
1. Re: Using ALC in the IC9700 to delay RF (Ken Arck)
2. Problems with sequencing preamps.... (Marshall-K5QE)
3. Re: Problems with sequencing preamps.... (John Kludt)
Date: Tue, 29 Jun 2021 17:06:26 -0700
From: Ken Arck <ken(a)arcomcontrollers.com>
Subject: Re: [Moon-Net] Using ALC in the IC9700 to delay RF
Content-Type: text/plain; charset="us-ascii"; Format="flowed"
At 04:30 PM 6/29/2021, you wrote:
>My IC-7100 has a Tx delay function that can delay Tx by up to 30ms.
>It's in the SET -> Function menu under "Tx Delay". I'd have though the
>IC-9700 might have something similar.
>I<-----Either doesn't work in FM mode or 30 ms isn't long enough as I
>took out my masthead preamp the first time I keyed in FM mode
President and CTO - Arcom Controllers
Makers of repeater controllers and accessories
Phone: (503) 678 6182
Authorized Dealers for Kenwood and Telewave.
We offer complete turn-key repeater packages!
AH6LE/R - IRLP Node 3000
"We don't just make 'em. We use 'em!"
sincere thanks for nice polite formulation touching the most of specific aspects of MW EME operation.
The activity support seems to be permanently the first issue, however any rules should be accepted.
Many times the contest is the only impulse to install and operate specific MW band.
Emphasize the role of check logs (for any reason) seem to be a great option.
If they would be added to the contest result, esp. with their particular scoring, it could help to stifle a breaching of the rule 3.3.
> Od: "Peter Blair via Moon" <moon(a)moonbounce.info>
> Komu: "Michael Kohla" <sa6bun(a)gmail.com>, moon(a)moonbounce.info
> Datum: 30.06.2021 12:56
> Předmět: Re: [Moon] DUBUS CW EME Contest
I share your frustration at rule 3.3 being ignored, however, Dubus/ REF is
the only CW / ssb contest that we have. The others are mixed mode and have
all the microwave bands on one weekend so activity per band (microwave) is
If we dont support Dubus / REF with entries it will die or be reduced in
scope. Please at least submit a check log.
When I put out my reminders of coming contest weekends I always provide a
link to the rules so there is really no excuse; if someone plans to enter a
contest log then they should follow the rules. With Joe's agreement I will
emphasise rule 3.3 in next years reminders.
I believe it would be unreasonable to ask for the logger(s) to be switched
off, they are there for all users of whatever mode. Rule 3.4 in fact allows
their use for spotting of other stations to enhance activity.
There is absolutely no reason why a station who wished to take part in the
contest should not work digital modes at the same time. ( see Zdenek's
comment) Announce the frequency for your digital mode operation and state
that CW operation will be somewhere else, not specified, that does not
contravene any rules.
Running an SDR on some part of the IF chain enables even the weakest signals
to be seen and then, hopefully, worked. ( see Peter's comment)
I also see no reason why one should not use the logger during the contest to
state when one will be active. I think that is very useful on these bands
where the overall level of activity is low.
Finally, we should all remember that these contests are meant to be fun, a
hobby, (not like football!) and really shouldnt need strict policing. As an
optimist I must believe that as this thread will have been widely read that
next year, (DV), there wont be a problem
Vy73 Peter G3LTF
PS. I am not part of the contest organisation, I just try and help with its
From: Michael Kohla via Moon
Sent: Monday, June 28, 2021 2:37 PM
Subject: [Moon] DUBUS CW EME Contest
To whom it concerns…
This is to let you know that again I have quite successfully participated
in the 2021 Dubus CW EME contest on the 6 and 3cm bands. A BIG ‚thank you‘
goes out to all stations I have worked on a totally random basis. Although
I have again achieved a very competitive number of QSO’s on both my active
bands (left), I will not send in my logs this year.
Reason: the contest has clear and very simple rules about the involvement
of i-net means, loggers etc. Short exerpt of contest rules to fresh up your
*…3.3 During Contest time, it is not allowed to use other communications
medium such as internet or packet radio, to self spot, announce CQ
frequency, make skeds, exchange any QSO progress info, confirm whether the
QSO was valid or not*….
As in the previous years, a considerable number of stations active in the
contest, have not followed this very simple rules by hanging around in
loggers like HB9Q during their contest time and exchanging contact details.
Actually, I have no objections doing this, as long as those stations regard
the contest as a sort of QSO-party for themselves and do not appear in the
score list of participants. But exactly this was the case in 3 previous
years. So far, there has been no attempt of rule enforcement by the sponsor
of this ‚contest‘. I recently got in contact with Joachim, DL8HCZ, on this
topic and his comment in general was that he did not have any time to
invest in following up on the contest rules.
Be it so, obviously it is up to the contestants themselves to honestly keep
to the rules – what a surprise, isn‘t it ???
When during this year‘s contest I approached one of the participants in the
HB9Q logger reminding him very politely of keeping to the rules, I was
returned that coordinating QSO details during contest times through the
logger meanwhile were common habit.
Aha, lesson learnt! As long as there is no kind of rule enforcement by some
sort of referee (as there was in former times …), i.e. disqualifying
offenders to check logs, this kind of ‚contest‘ for me is not worth to
invest any time in compiling and sending in my logs.
As criticism is pointless without showing up alternatives, here is my
proposal: besides enforcing contest rules as practised in former times, why
not simply switch off all loggers, chats, etc. during Dubus CW EME contest
times? Seemingly, this is necessary.
I still believe there is a vast number of operators, who are capable to
establish their eme contacts on a true and honest random basis off the moon
without i-net help. By simply switching off the HB9Q-logger, which in my
eyes is the most prominent meeting point these days, a serious competition
would be given again.
Or should this very last wake-up call be enough of a reminder to strictly
keep to the contest rules again?? I would be happy, then….
Of course, I am totally aware of the fact that my post will initiate a true
shit storm. The alternative would have been to angrily keep silent with all
the rule offenses, I have witnessed in the past years and which
unfortunately had no consequences for the offenders. But why should I ??
So far, I am an active part of the game, and I claim the right for me to
adress things, that objectively are going wrong.
If you want to check the HB9Q logger inputs, simply search within the
logger for the history of the particular contest days and judge yourself. I
have proposed to do this also to DL8HCZ, by the way. No comment yet from
Now, have fun to throw loads of shit on me….or just step back a little and
start thinking again?
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