Re: [Elecraft] Nearby Ham Interference

2016-01-20 Thread Dave Hachadorian
I have one special low band receive antenna that I need to protect. I use a grain of wheat bulb in series with the antenna with two back-to-back 1N5818 Schottky Diodes (low Vf) to ground on the receiver side. You can use a receiver protector on the main TX antenna of a transceiver, but the

Re: [Elecraft] Nearby Ham Interference

2016-01-20 Thread Charlie T, K3ICH
uate even running an amp. 73, Charlie k3ICH -Original Message From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ian White Sent: Wednesday, January 20, 2016 3:10 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Nearby Ham Interference In a multi-transmitter setup,

Re: [Elecraft] Nearby Ham Interference

2016-01-20 Thread Ian
ehalf Of j...@kk9a.com Sent: Tuesday, January 19, 2016 21:58 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Nearby Ham Interference He said that he has a protector on the Beverage. The RG5000HD is for receive antennas only so it will not work when he listens using his TX antenna on 10m-30m.

Re: [Elecraft] Nearby Ham Interference

2016-01-20 Thread Ian White
--Original Message- >From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of >Dave Olean >Sent: 20 January 2016 06:36 >To: elecraft@mailman.qth.net >Subject: Re: [Elecraft] Nearby Ham Interference > > >Hello Brendan, >I have two ten meter 5 el yagi antenna arrays t

Re: [Elecraft] Nearby Ham Interference

2016-01-19 Thread Dave Olean
other. I did fry one K3 using an amp with this setup. I took out a diode. Be careful, and make a few checks to avoid surprises. Dave K1WHS - Original Message - From: "Jim Brown" To: Sent: Wednesday, January 20, 2016 12:30 AM Subject: Re: [Elecraft] Nearby Ham Interference O

Re: [Elecraft] Nearby Ham Interference

2016-01-19 Thread john
He said that he has a protector on the Beverage. The RG5000HD is for receive antennas only so it will not work when he listens using his TX antenna on 10m-30m. John KK9A Ian ik7565 at verizon.net Tue Jan 19 18:05:07 EST 2016 Consider one of these: http://www.dxengineering.com/parts/dxe-rg5000

Re: [Elecraft] Nearby Ham Interference

2016-01-19 Thread Jim Brown
On Tue,1/19/2016 3:05 PM, Ian wrote: Consider one of these:http://www.dxengineering.com/parts/dxe-rg5000hd The K3 is pretty well protected -- if, for example, you hit it with too much signal, the attenuator will kick in and the preamp will turn off. And if that doesn't reduce the signal eno

Re: [Elecraft] Nearby Ham Interference

2016-01-19 Thread Ian
Consider one of these: http://www.dxengineering.com/parts/dxe-rg5000hd 73, Ian N8IK -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of k8...@charter.net Sent: Tuesday, January 19, 2016 08:17 To: 'Elecraft Reflector' Subject: [Elecraft] Nearby Ham

Re: [Elecraft] Nearby Ham Interference

2016-01-19 Thread Brendon Whateley
This discussion has made me curious -- especially when I carry my KX3 around at field day -- how much signal is safe and how much can do physical front end damage? Brendon KK6AYI - Brendon On Tue, Jan 19, 2016 at 10:44 AM, Alan wrote: > If you're worried about burning out the receiver front e

Re: [Elecraft] Nearby Ham Interference

2016-01-19 Thread Alan
If you're worried about burning out the receiver front end, why not test it? Add a 20 dB (or more) attenuator in front of the receiver and have your neighbor try transmitting on all bands and antennas. The K3 S meter is pretty accurate. Just add 20 dB to the reading to see how much RF is com

Re: [Elecraft] Nearby Ham Interference

2016-01-19 Thread Nels Nelsen
I have seen how effecttive item #5 is on the previous post. And if you don't follow all of Jim's advice then you are really missing out. I have seen companies spend thousands of dollars for advice that you just got for free. Nels Nelsen NE7LS n_n And I am still working on

Re: [Elecraft] Nearby Ham Interference

2016-01-19 Thread Jim Brown
On Tue,1/19/2016 5:17 AM, k8...@charter.net wrote: Our tx antennas are roughly 300 feet apart, he has a vertical right now and i have both a vertical and a beam to switch between. He plans on a beam this summer and it will be the same distance apart. Thoughts... For operation so close toget