receiver guard

[NOEL POULIN]

Hello,
I am going to use my SDR-IQ with my K3S ..KXV3A RX ANT IN and RX ANT OUT.
Will be using a plitter.
I want to know if I will have to add a RECEIVER GUARD  at the SR-IQ to
be safer...
My SDR-IQ will be using the K3s transmit antennas for receiving of
course....
Will it be safer to add a receiver guard at the input of the SDR-IQ
....to protect it from rf, when transmitting????
Advices will be welcome.
Thanks
Noel
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[Bob McGraw - K4TAX]

The RX Ant In and RX Ant Out are protected during transmit.   As to
protecting the input of the SDR-IQ, make sure you use very good quality
connectors and very good quality coax such that any transmitted RF is
not picked up by leakage into these components. I use Amphenol BNC
connectors and double shield coax for my jumpers.    Running near legal
limit,  I've not fried the front end of my SDR Play as of yet.

73

Bob, K4TAX




On 9/19/2018 10:14 AM, NOEL POULIN wrote:

> Hello,
> I am going to use my SDR-IQ with my K3S ..KXV3A RX ANT IN and RX ANT OUT.
> Will be using a plitter.
> I want to know if I will have to add a RECEIVER GUARD  at the SR-IQ to
> be safer...
> My SDR-IQ will be using the K3s transmit antennas for receiving of
> course....
> Will it be safer to add a receiver guard at the input of the SDR-IQ
> ....to protect it from rf, when transmitting????
> Advices will be welcome.
> Thanks
> Noel
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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[Wes Stewart-2]

Is the intent to use the SDR-IQ as a separate receiver or as a panadapter?

I suspect the former but if it's the later use the K3S i-f output into the
SDR-IQ and setup SpectraVue appropriately.  It works wonderfully.

Otherwise follow K4TAX's advice.

Wes  N7WS

  On 9/19/2018 8:14 AM, NOEL POULIN wrote:

> Hello,
> I am going to use my SDR-IQ with my K3S ..KXV3A RX ANT IN and RX ANT OUT.
> Will be using a plitter.
> I want to know if I will have to add a RECEIVER GUARD  at the SR-IQ to be
> safer...
> My SDR-IQ will be using the K3s transmit antennas for receiving of course....
> Will it be safer to add a receiver guard at the input of the SDR-IQ ....to
> protect it from rf, when transmitting????
> Advices will be welcome.
> Thanks
> Noel

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