Locked
Re: WL1030 kit
<c.beijersbergen@...> wrote: 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 website is in
By
Fraser <fraser.castle@...>
·
#3650
·
|
Locked
WL1030 kit
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 antenna. The time window is this weekend
By
C. Beijersbergen <c.beijersbergen@...>
·
#3649
·
|
Locked
Correction: Re: mini-report: CCrane Twin-Ferrite - Midday AM ...
Oops. Yup, it does run off batteries. Just flip it over :)) -Mark +++++++++++++++++++++++++++++++++
By
Mark/KD9NOO/airchecklover
·
#3648
·
|
Locked
Wellbrook K9AY AM/MW Loop Antenna Is Back In Production
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 Direction antenna is back in production
By
R H F
·
#3647
·
|
Locked
Re: mini-report: CCrane Twin-Ferrite - Midday AM ...
If anyone is interested,the patent # is 6529169,
By
eberhard keller
·
#3646
·
|
Locked
Building a Larger AM Loop Antenna for the Radiosophy "HD100" Radio
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
By
R H F
·
#3645
·
|
Locked
Re: Loop for a Kenwood R-1000
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 antennas, and other fancy antennas, but you
By
Richards <jruing@...>
·
#3644
·
|
Locked
Re: mini-report: CCrane Twin-Ferrite - Midday AM ...
Mine has been running off the same 9V battery for years. (I don't use it all that much.) You sure it doesn't take batteries? -- Jay
By
Jay Heyl
·
#3643
·
|
Locked
Re: Kiwa Pocket Loop and Pocket Regeneration Module
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 job. I use the regen all the time when
By
Jay Heyl
·
#3641
·
|
Locked
Re: Anyone know abt these LF-MW-HF loops?
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 from an amplified LF/MF/HF loop. An EMI
By
Ken Javor <ken.javor@...>
·
#3642
·
|
Locked
Kiwa Pocket Loop and Pocket Regeneration Module
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: http://www.kiwa.com/pktloop.html I'm
By
Jon P
·
#3639
·
|
Locked
Re: Anyone know abt these LF-MW-HF loops?
some an LW/MW/SW
By
Fraser <fraser.castle@...>
·
#3637
·
|
Locked
Re: Anyone know abt these LF-MW-HF loops?
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 the proper frequency. $600. is a little
By
keith beesley
·
#3640
·
|
Locked
mini-report: CCrane Twin-Ferrite - Midday AM ...
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 antenna position and T-F tuning controls.
By
Mark/KD9NOO/airchecklover
·
#3636
·
|
Locked
Anyone know abt these LF-MW-HF loops?
Broad Description: (about) 24" diameter. Passive 6 position switch at base covering 150khz-30mhz. Mil-spec &/or calibrated to Standards. Described Uses: magnetic field testing, direction finding or as
By
Mark/KD9NOO/airchecklover
·
#3635
·
|
Locked
Loop for a Kenwood R-1000
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 and I live in a mobile home.I'm going to
By
bongo432002 <txnmoon01@...>
·
#3638
·
|
Locked
Re: Active antenna transformer
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 amount of error in using an unmatched pair in
By
Chris Trask - N7ZWY/WDX3HLB
·
#3634
·
|
Locked
Re: Small Transmitting Loop Dimensions
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 would be the efficiency of a plain old dipole up
By
n2chi <davidgriffin@...>
·
#3633
·
|
Locked
Re: Small Transmitting Loop Dimensions
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. 100% efficiency just means that all the power you
By
Andy <Andy.groups@...>
·
#3632
·
|
Locked
Re: Trap for 160/80m loop ?
Sam Morgan wrote: 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 arching from the high peak voltage at
By
John Popelish <jpopelish@...>
·
#3630
·
|