[NLRS] First 2.3 GHz EME QSO
Zack Widup
w9sz.zack at gmail.com
Thu Mar 7 11:04:50 EST 2024
I've seen Tommy's list of gain and noise figure measurements for his
preamps on different bands. I've built his preamps for 902, 1296, 2304 and
3400 MHz. I painstakingly copied his board pattern. For 2304 and 3400, I
had JLC PCB make me some boards on 25 mil thick FR-4. My gain measurements
are all in line with his. He didn't include one for 902 MHz, but I measured
the gain on 902 at 41 dB (!). It's good that they are unconditionally
stable.
Zack W9SZ
On Thu, Mar 7, 2024 at 9:37 AM Charlie Betz <cmbetz at charter.net> wrote:
> I really don't have the equipment to do a real gain or NF test, but I
> believe the handwritten notes Tommy had on the LNA were 28dB gain with a NF
> of 0.5 dB. I can attest to the fact mu RX on EME is quite good
>
> Shortly after workin W5LUA I also worked N1AV in AZ for another new
> state/grid. Jay was only running about 100 watts to a 4M dish. He was
> considerably weaker than Al, but copyable. Looking forward to trying to
> work Jay in HI next week.
>
> Charlie N0AKC
>
> Get Outlook for Android <https://aka.ms/AAb9ysg>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/nlrs/attachments/20240307/e7853cb8/attachment.html>
More information about the NLRS
mailing list