[Lowfer] Active Loop in proximity of MF Transmit antenna - Question

k2ors at verizon.net k2ors at verizon.net
Sun Nov 17 09:03:09 EST 2019


Hi Andy,       I have several Wellbrook loops. I use one with a Kiwi SDR it's about 30 feet from my 137kHz transmit loop and 50-60' from my 160m inverted L.I run QRO power on both bands and it doesn't bother the Wellbrook.
73 Warren


-----Original Message-----
From: Chris Wilson <chris at chriswilson.tv>
To: Andy - KU4XR <ku4xr at yahoo.com>; Discussion of the Lowfer (US, European, & UK) and MedFer bands <lowfer at mailman.qth.net>
Sent: Sun, Nov 17, 2019 6:31 am
Subject: Re: [Lowfer] Active Loop in proximity of MF Transmit antenna - Question

Hello Andy,

 Saturday, November 16, 2019

 I  think  I would use a switch box to remove power to the loop during
 TX,  that's  what  I  do  here when transmitting on 2200 meters.  It
 would probably be OK without, but probably doesn't pay the repair bills!


Best regards,
 Chris    2E0ILY      mailto:chris at chriswilson.tv


AKvL> Greetings all:

AKvL> I have a Wellbrook Active Loop that I hope to put into receive
AKvL> service soon. Is there a minimum separation distance
AKvL> from my 630 meter TX Vertical I should consider ? My Vertical
AKvL> portion is 40 feet tall and I have top loading in several
AKvL> directions extending 200+ feet. My TX power into the loading
AKvL> Coil is 22 watts. I certainly don't won't to " blow out " 
AKvL> the loops Preamp on the first night of TXing. Thanks for any and all comments.

AKvL> 73: Andy - KU4XR
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