Re: LZ1AQ amp
Just received one myself. Still building out the box and loop. How far from the amplifier did you place the bias tee? Seems closer is better. I have been thinking about bnc-bnc the bias tee at the
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Superlite
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#20876
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Re: My PA0FRI active loop receiving antenna
So, where is the schematic in the github mess? I can not find anything
labelled "schematic". That's all I need.
Dave - W?LEV
[email protected]> wrote:
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W0LEV
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#20875
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Re: My PA0FRI active loop receiving antenna
Gerbers are fine if you have boards built and them populate them yourself.
I do only dead-bug style, so the Gerbers are only confusing to me. Give me
a CLEAR schematic. I can take it from
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W0LEV
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#20874
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Re: My PA0FRI active loop receiving antenna
Seems OK to me. The files are Gerber's and other schematic info, so that you can get your own boards made and build them as required.
However, as I've said before, there isn't much additional effort
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Martin - Southwest UK
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#20873
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Re: My PA0FRI active loop receiving antenna
Boy I am with you !? To me github is unbelievably user hostile.
Gedas, W8BYA EN70JT
Light travels faster than sound.....
This is why some people appear bright until you hear them speak.
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Gedas
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#20872
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Re: My PA0FRI active loop receiving antenna
Please. Could you post to something more "friendly" than github. Just a
bunch of numbers and tables to me.
Dave - W?LEV
[email protected]> wrote:
--
*Dave - W?LEV*
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W0LEV
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#20871
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Re: Steve ugly-build LZ1AQ using MPS2222 sweeps uploaded to Photos
Thank you for pointing that out. That makes them marginally affordable, so I might get a couple of the one DIP version they offer.
In the meantime, I came across the BFU520Y. It's not a monolithic
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Chris Trask - N7ZWY/WDX3HLB
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#20870
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My PA0FRI active loop receiving antenna
Hi Folks,
I recently built the PA0FRI active loop receiving antenna for HF
(shortwave) use. The reception results have been highly impressive,
especially considering the extremely constrained space
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Dhiru Kholia
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#20869
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Re: Why not a resonant loop?
I live within long walking distance of the Homebush Bay, Sydney medium wave transmitter site. The signal strengths are high. With wideband antenna systems, the radio exhibits desensitization. A tuned
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Todd Emslie
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#20868
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Re: Why not a resonant loop?
Great, but it's narrow banded! Again, my interests in loops range from
below the submarine comms. (Schumann Resonance) through 160-meters.
I have a tuned loop for 40, 30, and 20-meters, but here at
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W0LEV
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#20867
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Re: Steve ugly-build LZ1AQ using MPS2222 sweeps uploaded to Photos
I am referring to any external balun or common mode choke (CMC). As you're
aware, my application as a ham addresses both receiving and transmitting.
For the longest time, a couple of years, I placed
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W0LEV
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#20866
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Re: Steve ugly-build LZ1AQ using MPS2222 sweeps uploaded to Photos
Mouser has the THAT 300 series, about $8 for SMT and $11 for thru hole.
https://www.mouser.com/c/?q=That%20300%20array&m=THAT%20Corporation
Mikek
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Mikek
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#20865
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Re: Steve ugly-build LZ1AQ using MPS2222 sweeps uploaded to Photos
THAT HAS DIP
ask for samples
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Paul V Birke
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#20864
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Re: Steve ugly-build LZ1AQ using MPS2222 sweeps uploaded to Photos
On Sat, Jan 25, 2025 at 07:48 AM, Chris Trask - N7ZWY/WDX3HLB wrote:
Even though I'm always interested in monolithic transistor arrays, the overall lack of data in that datasheet makes me skeptical
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Chris Trask - N7ZWY/WDX3HLB
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#20863
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Re: CQ CQ N4CY
f anyone is interested they can contact me off list ate everettsharp@... everettsharp (at) aol com Everett *N4CY*
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Jerry Strawman
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#20862
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Re: Steve ugly-build LZ1AQ using MPS2222 sweeps uploaded to Photos
That corp parts are of high quality. I Have used them is several commercial designs.
-davidBTW
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David Bytheway
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#20861
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Re: Steve ugly-build LZ1AQ using MPS2222 sweeps uploaded to Photos
Dear Chris
These are high-frequency well-matched 4 transistors.
Are you worried about the Full Wilson made with these inducimg unwanted noise into the excellent Everett amp?
or something
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Paul V Birke
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#20860
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CQ CQ N4CY
Everett, I have one of your loop boards and have lost the instructions. I am going to resurrect my broken loop tht I pulle ddown a couple of years ago.
I can't find an email address for you so would
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Warren Dean / NI5L
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#20859
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Re: Why not a resonant loop?
Reply to Mikek:
I use an 11 turn flat (pancake) wound loop to chase broadcast-band Dx in the US. ?The loop tunes from about 700 hHz to a little over 1600 kHz. A small silver mica cap can be switched
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JohnT
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#20858
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Re: Steve ugly-build LZ1AQ using MPS2222 sweeps uploaded to Photos
THAT CORP might send you samples Chris just ask!
Paul
By
Paul V Birke
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#20857
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