Tasty » Adam Sampson's loop bookmarks

Small Magnetic Receiving Loops edit / delete

Useful description of shielding techniques.

to antenna loop radio ... on 02 November 2011

Wideband active small loop antenna edit / delete

Lower a loop's Q by adding resistance, then build in an amplifier: wideband magnetic-field antenna. Worth building to compare to my PA0RDT electric-field probe.

to antenna electronics loop radio ... on 27 March 2011

Glen's Home Page edit / delete

Including investigations into multiturn loops. (Aegis on #hamradio.)

to amateur antenna loop radio ... on 28 February 2011

Ralph Klimek edit / delete

Lots of random electronics: radio, including an unusual loop antenna; simple computer designs; why ECL should have beaten TTL; and various other bits.

to antenna computer ecl electronics loop radio retrocomputing retrotech ttl ... on 30 January 2011

PA0FRI Homepage edit / delete

I like the stacked double loop antenna.

to antenna electronics ham loop radio ... on 22 December 2010

Loop Antenna. edit / delete

Very simple active loop amplifier design (for which I've got all the bits already). Probably worth trying for my balcony.

to antenna loop radio ... on 21 November 2010

Chris Trask, Analog/RF/Microwave Design Consultant edit / delete

Loop and active antennas. Decent papers, including descriptions of how to build the complicated capacitive match to a loop. (He seems awfully fond of winding inductors, though.)

to active antenna electronics ham loop radio ... on 03 November 2010

VK4AMZ.COM edit / delete

Now, that's what I call a loop.

to antenna ham loop radio ... on 23 October 2010

Low Freq. Antennas edit / delete

The active loop design looks interesting -- use a high-bandwidth differential amp rather than a matching transformer, with a varicap to allow remote tuning. (Wonder how small a loop you can get away with?)

to antenna electronics loop radio ... on 01 October 2010

The G4ILO Wonder Loop edit / delete

He comments that he's only been able to measure the performance on 20m/30m/40m. Having built his design, it does indeed only tune from about 6MHz-18MHz. (The CARC design with a 1m loop and a gamma match is more like 9MHz-30MHz with a 30-275pf capacitor, so this one wins on being able to do 40m but loses 15/12/10.)

to antenna electronics ham loop radio ... on 02 February 2010