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Locked Re: Air core loop
exnci2000 wrote: Is this one of the sites you found? http://www.qsl.net/in3otd/ind1calc.html I agree that it doesn't agree very closely with the approximate formula at the bottom of page 2 of:
By John Popelish <jpopelish@...> · #3109 ·
Locked Re: Air core loop
loopcalc.exe gives 4.8uh 73 jim ab3cv
By Jim Miller <jim@...> · #3110 ·
Locked Air core loop
Hi, I would like to know the correct value, in microhenry, of a single turn air core loop 1 meter diameter (conductor 1 mm ).I tried many software but they give me different results. Regards Franco.-
By exnci2000 · #3108 ·
Locked Re: AOR LA350 Loop Antenna
Hello all The AOR LA350 Loop Antenna is still for sale, is any one still interested in buying it. Thanks Andrew.
By aandrewb2001 · #3106 ·
Locked Re: Active loop antenna
A FET might be alright, definitely the ticket on short whip with a high impedance .... I'm not sure what the impedances look like on a (relatively) short untuned loop, I tried to measure one with my
By jr_dakota <SG2112@...> · #3105 ·
Locked Re: AOR LA350 Loop Antenna
Hi Andrew I'm still interested regards Nigel GM8PZR
By gandalfg8@... · #3107 ·
Locked Re: Active loop antenna
My email address is Rlane7301@... Ralph
By Ralph Lane <rlane7301@...> · #3104 ·
Locked Re: Active loop antenna
Hi Ralph, You will need to PM me your email address. Fraser
By Fraser <fraser.castle@...> · #3103 ·
Locked Re: Active loop antenna
Hi, add me to the list for the Loop antenna schematic. Ralph
By Ralph Lane <rlane7301@...> · #3102 ·
Locked Re: Active loop antenna
Rob, Email me and I'll add you to the list of email recipients for the schematic. Fraser wrote: amplifier. the form resonance output of never it work
By Fraser <fraser.castle@...> · #3101 ·
Locked Re: Active loop antenna
Hi, I'd like a copy of the WL500 schematic! It will save me a lot of trouble tracing through the wiring and PC board. Regards, Rob
By Rob Moore <rmoore5@...> · #3100 ·
Locked Re: Active loop antenna
Hi Franco, The AOR WL500 uses a MAR6 MMIC from Minicircuits as it's RF amplifier. The WL500 is varacap diode tuned and uses "bulk inductance" in the form of two switched fixed inductors to bring the 2
By Fraser <fraser.castle@...> · #3099 ·
Locked Re: Active loop antenna
How about a plain old FET to lower the loading? Keith
By Keith Browning <kbrowning@...> · #3098 ·
Locked Re: Active loop antenna
You need strict 50 ohm input and output impedances for these MMICs to work properly which is kind of hard to do with the first amplifier on a broadband antenna ... On a tuned loop with a small pickup
By jr_dakota <SG2112@...> · #3097 ·
Locked Re: Loop supports
Oh No...I believe antennas put up in lousy weather last longer. Just my take... ////// Richards ////// =============================================== Bob B. wrote: Now all I need is warmer
By Richards <jruing@...> · #3095 ·
Locked Active loop antenna
Hi, On minicircuits.com catalog,there are some interesting mololithic Rf amplifier ERA/MAR series offering good IP3.I would like to know if you have some schematich diagram to homebrew an active
By exnci2000 · #3096 ·
Locked Re: Is anybody there....
Its hovering around zero degree C here in Toronto, Ontario Larry ve3fxq
By larry allen <larya@...> · #3094 ·
Locked Re: Super Loop 40/80m
Thanks for the input. I don't have the lot size or supports to get the loop any higher then what I have which is 30 ft at the highest point. The apex is pointed down and at about 6 foot off the
By willmcray <w6aav@...> · #3093 ·
Locked Re: Is anybody there....
Rub it in! It's about 55 degrees here and rainy in San Jose. ____________________________________________________________________________________
By Rob Moore <rmoore5@...> · #3092 ·
Locked Re: Is anybody there....
Sorry wasn't paying attention. I was out laying by the pool. 75 degrees here in Phoenix! Steve B. ____________________________________________________________________________________ Do you Yahoo!?
By Steve Baker <mcqueen_34@...> · #3091 ·