Topband: VE3DO loop

[Tim Duffy]

Hello Mike;

I use this preamp in the shack - at the end of the 50 ohm Heliax that feeds my RX antennas (very low loss):
https://www.dxengineering.com/parts/dxe-z10046b-pm

I also match my 75 ohm RX antennas to 50 ohms using this:
https://www.dxengineering.com/parts/dxe-rx75-50-xfmr

The TS-590SG is an excellent radio

73
Tim K3LR

-----Original Message-----
From: Mike Fischer [mailto:mikebfischer at comcast.net] 
Sent: Thursday, October 3, 2024 10:54 PM
To: Tim Duffy
Subject: Re: Topband: VE3DO loop

Tim, may I trouble you with one more question?

Could you recommend a low noise preamp that you would use with the VE3DO (if you would use one of course). 

My rig is a TS-590SG and has a dedicated rx ant port as you probably know…

Thanks

Mike  
Sent from my iPhone

> On Oct 1, 2024, at 10:58, Tim Duffy <k3lr at k3lr.com> wrote:
> 
> Hello Mike;
> 
> There are a few different "receiver guards" out there. If your receiver guard is a RG5000HD from DX Engineering, you should be OK. As a test, I have put as much as 25 watts into the RG5000HD and it did not damage the RX front end.
> 
> https://www.dxengineering.com/parts/dxe-rg5000hd

> 
> 73
> Tim K3LR
> 
> -----Original Message-----
> From: Topband [mailto:topband-bounces+k3lr=k3lr.com at contesting.com] On Behalf Of Mike Fischer via Topband
> Sent: Tuesday, October 1, 2024 12:47 PM
> To: topband at contesting.com
> Subject: Topband: VE3DO loop
> 
> Hi Tim
> 
> Is my receiver guard enough ‘protection’ from my 160 inv L approx 60’ away from a VE3DO loop?
> 
> Thank you sir!
> 73
> Mike, K7XH
> 
> Hello Ed
> 
> There is very little interaction between nearby loops. We are studying
> interlaced loops that are 90 degrees to each other for four azimuth
> coverage. I would keep the loops at least 25 feet away from other radiators.
> Also be careful of RX overload from nearby TX.
> 
> 73
> Tim K3LR
> 
> Sent from my iPhone
> 
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