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 ...
Pete WA2ODO
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Hi all,
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.
Vy 73
Bruce PY2BS
qrv 70cm, 33cm, 23cm, 13cm, 9cm, 6cm and 3cm.
Hi mooners,
For 10Ghz only one preamp is available and we will close further production after delivering more then 100 pcs.
We expect a crowed band in the coming time,hi.
We are currently preparingthe first batch of a super LNA for 24Ghz with NF: 1.1dB
Furthemore we would like feedback for the design and production of an 24Ghz SSPA.
Design goal is: 10Watt rf out, Vdc: 15Vd and WG connections.We will design against a reasonable price but need your feedback.
Thanks in advance,
Jan PAoPLY
Dears EMEfans,
I invite you to send your log will be appreciated, also with only one
qso, end-time Monday June 18th.All format areaccepted, better if xls.
*
http://www.eme2008.org/ari-eme/contest.html
*
Best 73'sde EnricoI5WBE
A.R.I. - EME Manager Coordinator
I am almost done with firmware for MABMPU simple controller. This is a potential replacement for DRO levels that can be expanded in the future to work with various popular EME trackers like RazTrak, DrzTrack, OE5JFL, F1EHN.
In order to use this setup, one MABMPU encoder board takes on role of the controller and reads the US Digital SEI bus encoders and displays the results on the LCD. This simple controller works with US Digital A2 and A2T encoders or MABMPU encoder board (using MAB25, MAB28, ETS25 or MPU9150 inclinometer).
Power (+12VDC) is provided to the encoders over the 6-wire CAT-3 cable from the MABMPU simple controller. In theory, the US Digital SEI bus can drive cables over 100m.
For those that already have a EME tracker which utilizes US Digital encoders, I have a version of the MABMPU LCD firmware that monitors the SEI encoder bus for encoder read position commands and simply displays the positions on the LCD display. In this configuration, the power to the MABMPU monitor is obtained from the SEI 6-wire bus.
Simple Controller:
https://www.dropbox.com/sh/967cur8w88zrtgh/AAA5N_CrlFZpQsHmjIBwP2vaa?dl=0
More photos:
https://www.dropbox.com/sh/8h6cp0hw463rekc/AACK_Lv0Nswr_P0mWGIDkwoLa?dl=0
Gary, N8CQ
Hello everyone. I am hoping these relays will be of use to you. I have
received requests for more relays since they sell out quickly. Below are
listings with URL's that show a picture or two. ANY orders outside of
the USA will require insurance. In the USA if you want additional
insurance you must tell me (flat rates provide $50). PayPal works well
with me. If you do request a relay(s) _please_ be prepared to pay for it
that day via PayPal.
1. (Quan 25) Charter (P/N-B7N-142102), SPDT, SMA, rated 13 GHz (but good
to 18 GHz per Charter Engineer I spoke with), 24-32 VDC coil, open ports
50-ohm terminated internally, min of 1 million contacts, min isolation
>90 dB @ 2 GHz, break before make, 200W (CW) at 1 GHz, (50-ohm
terminations 8W), latching with aux indicator contacts and what is super
about these is they have the low passive inter-modulation distortion
option (PIM = -110 dBc, 2-tone). $21/ea + shipping.
https://drive.google.com/open?id=1FFLMOSd6qFAXeuvL49UNaCHIf0Q_GxtNhttps://drive.google.com/open?id=10AWTfJK7h-dj2dY552rOQURXeBz95Log
2. (Quan 4) Charter (P/N-P5N-142102), SP5T, SMA, rated 13 GHz (good to
18 GHz per Charter Engineer I spoke with), 24-32 VDC coil, open ports
50-ohm internally terminated, min of 1 million contacts, min isolation
>90 dB @ 2 GHz, break before make, 200W (CW) at 1 GHz, (50-ohm internal
terminations 8W), latching with aux indicator contacts and what is super
is these have the low passive inter-modulation distortion option (PIM =
-110 dBc, 2-tone).$30/ea + shipping.
https://drive.google.com/open?id=1WMBsG9pPlO_bYX6tM7OKxcfwSbSazV9Vhttps://drive.google.com/open?id=1RowfJaRMcXWOw08iOdQowYogJPEtqn8B
3. (Quan 2) Charter (P/N-P6N-142102), SP5T, SMA, rated 13 GHz (good to
18 GHz per Charter Engineer I spoke with), 24-32 VDC coil, open ports
50-ohm internally terminated, min of 1 million contacts, min isolation
>90 dB @ 2 GHz, break before make, 200W (CW) at 1 GHz, (50-ohm internal
terminations 8W), latching with aux indicator contacts and what is super
is these have the low passive inter-modulation distortion option (PIM =
-110 dBc, 2-tone). These are the same pics as above as they look
identical except these two are SP6T. $30/ea + shipping.
https://drive.google.com/open?id=1WMBsG9pPlO_bYX6tM7OKxcfwSbSazV9Vhttps://drive.google.com/open?id=1RowfJaRMcXWOw08iOdQowYogJPEtqn8B
4. (Quan 4) Charter (P/N-P3N-522100), SP3T, SMA, DC-18 GHz, 13-18 VDC
coil, open ports 50-ohm internally terminated, min of 1 million
contacts, min isolation >90 dB @ 2 GHz, break before make, 200W (CW) at
1 GHz, (50-ohm terminations 8W), latching with aux indicator
contacts.$30/ea + shipping.
https://drive.google.com/open?id=16xDDK-NUy5IH0NCWrl6ILt1DRhRZOsuShttps://drive.google.com/open?id=1ii6Mw9cwYreRKPlUTRSNISqAD9rPhd6u
5. (Quan 10) Narda-Loral (P/N-022-D13-A2B-1C0), SPDT, SMA, DC-3 GHz, 12
VDC coil, open ports 50-ohm externally terminated, min of 1 million
contacts, min isolation >80 dB @ 2 GHz, break before make, 180W (CW) at
1 GHz, (50-ohm terminations 1W), normally open contacts, optional
suppression diodes installed.$20/ea + shipping.
https://drive.google.com/open?id=1FJ1Ts2Z7feN6uUfJU44Wxvedys09qxBNhttps://drive.google.com/open?id=16XVtjaAfzFh2SB7tjxVmyTdm5HjKhJYu
6. (Quan 8) Teledyne (P/N-CCT-39S86C-R), SP6T, SMA, DC-18 GHz, 12 VDC
coil, open ports 50-ohm internally terminated, min of 5 million
contacts, min isolation >75 dB @ 18 GHz (>80 dB DC-16 GHz), break before
make, 180W (CW) at 1 GHz, (50-ohm terminations ?W), latching with aux
indicator contacts, I believe internal suppression diodes installed as
standard.$35/ea + shipping.
https://drive.google.com/open?id=17FeUOFdW9cfOG0joDKytuOAZtG4tc984https://drive.google.com/open?id=12BxKvvmHYw3wYzK7pdVMpdsrY7u5xJEq
Gedas, W8BYA
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
I hope someone with experience on 222 MHz can answer this for me.
My EME experience is limited to 144 and 432 MHz.
At 222 MHz, what is the situation with operating on the horizon? Is
earth noise a big problem like it is at 432 MHz?
I don't have reliable sky temperature data for 222 MHz at the
moment. If I did, perhaps I wouldn't need to ask this question!
I would also like to know what is the temperature of 'cold sky' at
this frequency please?
73,
Paul N1BUG
