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.
Just wondering when there will be some activity on 13cm ?
I am on HB9Q logger (13-9cm) every day but not much people around there.
Every month there are separate band contests at the best propagation
In between most switch to the next band and have no time to try other bands
Except for a few that I managed to work and on my request put the correct
feed in there system.
If activity is only at 13cm contest weekends then this was sure a waste of
Lucky I had the fun to assemble all parts and have it all working.
Guy ON4AOI - OT7K
Befefore I reinvent the wheel this spring and before I strip down my RAS,
has anyone out there fitted absolute rotary encoders of the MAB 25 style to
a SPID RAS and more importantly documented it?
Also if anyone has stripped down and rebuilt a RAS I'd be interested in any
tips, pitfalls and gotchas.
I used to regularly strip down and rebuild a a Suzuki T500 charger engine
in my youth,so I'm not scared to have a go but I had a Haynes manual!
You could save me a lot of time and headscratching.
Also an exploded diagram of the rotator would be nice
Answers on a postcard to.......
I also missed a lot of sleeping as most of you ;-)
Made 19 analog qso's during those long two nights. Got a ssb contact
with PI9CAM when they tx with 50 watts or less. Nice!
Spent a lot of time looking for more stations, but maybe low activity
during my window.
Additionally made 9 jt qso's, 6 of them new contacts. Some of them could
be worked in cw as well.
Had some probs with defective contacts of my control cables and lost a
preamp. But no matter it was really funny.
Will not party in the contest because of the ARRL rules.
Hope to work you soon!
73, Slawek dl6sh
We had a successful demonstration of 3 cm EME at the Microwave Update
Conference in St. Louis, MO on Oct 13, 14 and 15. I was located in EM48ss in
the hotel parking lot. The antenna was a 1 m offset fed dish made by
Winegard. Power was provided by a GaN device delivering 30 watts to the
feed. I used a KX-3 IF and DEMI transverter locked to a 10 MHz Isotemp TCXO.
I was not able to take advantage of measuring moon noise as a pointing
assistance as there was a local beacon up the band that was getting into my
GR-1216 noise meter. I plan to look into better ways of measuring moon noise
over narrower bandwidths ...However I drug out the compass and was able to
get reasonably close on azimuth and when we started hearing stations we
could easily optimize the dish and establish a new azimuth reference. The
theoretical 3 dB beamwidth of the 1 m dish at 10 GHz is 2.2 degrees. My dish
mount is calibrated in 1 degree increments making it easy to update once we
find the moon. Elevation readout was provided by a Sears digital level
placed on the offset dish feed support. Based on prior sun noise
measurements, I determined that the arm angle was 3 degrees below the actual
pointing angle of the dish. I requested that other stations who wished to
call me do the mutual Doppler correction on both receive and transmit so
that I could receive and transmit on 10368.050 MHz.
On the first moon rise, we did work on JT-4F G3WDG at 2257Z, OZ1LPR at 2305Z
and OK1KIR at 0042Z, We attempted contact with K5GW on cw but it was
confirmed later that Gerald had some tracking program issues and we gave up
for the night. The attendees were able to copy K5GW calling us on cw so that
provided a good demo to the guys. The tones from the other 3 stations were
also heard in the loudspeaker. so despite the fact that we had to manually
(with some luck) keep it on the moon without the help of moon noise, we did
On the second night, we had a repeat QSO with G3WDG at 2342Z (thanks Charlie
as you confirmed we were on the moon) and WA3LBI at 0023Z. I then ran a sked
with K5GW with me doing the mutual Doppler correction on both receive and
transmit and we established contact by 0130Z. We then went back to CQing on
.050 hoping for further contacts. We were surprised and pleased to make a
contact with G4CBW at 0135Z who was only running a 1.5m dish. We finished
the evening with a nice contact with OK1CA.
Thank you to the stations we worked and my friends who helped me with setup
and teardown.73 de W5LUA 10/17/2016
I plan to be active, 250W and 6m dish, Transmit 2320MHz only. Receive 2400,( JA window) 2320, (Always),2304 (NA window) 2301 (VK window)
Unless advised otherwise I listen cross band on the corresponding frequency, ie. I call 2320.095 and listen on 2304.095.
As I plan to enter the contest I will not be on the logger.
GL 73 Peter G3LTF
I was only able to be active for the first 5 hours of the contest on Saturday due to visitors / house guests but I found activity and conditions both good. I worked 19 stations, KL6M, DF3RU, ES5PC, PA3DZL, OF2DG, HB9Q, OK1KIR, SP6OPN, OK1CS #, S59DCD, OH1LRY, G4CCH, DL1YMK, OK1CA, LZ1DX, OK1KKD #, OZ6OL, SP3XBO # and S53MM. Thanks to all for the nice QSOs (and especially for the CW congrats messages) Amazing levels of EME interest in OK. Sorry I had to miss the main NA window.
73 Peter G3LTF