Although the cost is high I recommend the use of Cool-Amp _http://cool-amp.com/cool-amp.htm_ (http://cool-amp.com/cool-amp.htm) for use on small loops and RF...
... thanks for the info, defiantly a big help. using hamcalc for 1.9mc I come up with a ~15 turn coil of RG-58 on a 3.5" coil form using ~13' of coax and the...
... These lengths sound short to me. ... I think a 1/4 wave shorted stub would be wider band than a half wave open stub. The open stub is also prone to...
... Actually, as far as efficiency is concerned, the reference is ideal or no loss. Efficiency, unlike gain, is not compared to a dipole or anything else....
Hi Andy, Yes, I agree. It makes sense that that efficiency would be a power in - power out ratio. I was wondering how to compare it, though. E.g., what...
... If you were making a differential amplifier for instrumentation purposes, yes. But in this application you are making a pair of source followers, and the...
Broad Description: (about) 24" diameter. Passive 6 position switch at base covering 150khz-30mhz. Mil-spec &/or calibrated to Standards. Described Uses: ...
Hi Everyone; Just rcv'd a CCrane Twin-Ferrite for MW. Preface: To get the most out of this unit, you have to like 'playing/fildding' with radio & Twin-Ferrite...
... some ... an ... LW/MW/SW ... I have used EMC loops, both passive and active in design. The passive loops are OK for shortwave/Medium wave listening but can...
Greeting folks..first timer here.Would it be a good idea to use a loop antenna for a Kenwood R-1000? It's going to be right in front of a window facing south...
Does anyone know anything about the Kiwa Pocket Loop and Pocket Regeneration Module? Note: this is NOT the same thing as the Kiwa MW aircore loop. see it here:...
Mark, I've seen those military surplus loops on Ebay from time to time. I'm no expert, but I don't see why they wouldn't work on at least MW and SW if tuned to...
... My Quantum QX Pro antenna has regen circuitry. I don't generally use it a lot for MW, but there are occasions where nothing else in my arsenal will do the...
EMI/RFI antennas in general, not just loops, are designed for maximum bandwidth and not efficiency. A capacitor tuned loop is the opposite end of the spectrum...
You ask many questions in a short space. I am a big fan of the straight, long/random wire antenna as a starting point. You can add loops, dipoles, active...
Building a Larger AM Loop Antenna for the Radiosophy "HD100" Radio to capture more of the 1% Digital Signal beyond the 10mv/m Contour of an AM Radio Station ...
Wellbrook K9AY AM/MW Loop Antenna Is Back In Production Wellbrook Product News http://www.wellbrook.uk.com/scroller.html The renoun Wellbrook K9AY LF to 160m 4...
Recently I received the following message about the WL1030 loopantenna. It is an action with an offer for a set of difficult to get components for the WL1030...
... loopantenna. It is an action with an offer for a set of difficult to get components for the WL1030 antenna. The time window is this weekend only, and the...
Hi Cor ;) I'm the one 'responsible' for the webpage about this project. After some discussions about selfmade loop antenna's on a Dutch lng newsgroup the...
... some ... version. ... designed. ... extra ... freetime ... tax. ... a ... Oh dear..... I'm in the United Kingdom so it looks like I will not be getting a...
... I'm very sorry to dissapoint you :( This started out as a small group effort but got known outside of this group and quickly grew out of capacity. We...
... Hi Jeroen, No worries :-) I think what you are doing is very good for the hobby and I personally thank your little group for even considering acting as a...
... I know ;) Today I compared a online rx with a wl1030 about 30km from me with my rx with an active loop (http://www.radiocollectie.nl/Schema's.htm) and I...
