W7LRD
- Original Message -
From: Greg D. ko6th_g...@hotmail.com
To: k7trkra...@charter.net, amsat-bb@amsat.org
Sent: Wednesday, February 16, 2011 9:56:50 PM
Subject: [amsat-bb] Re: pre amp help..
As others, SSB Electronics model that is RF switched. I *have* transmitted
100+ watts
I gave had good luck with the AG-25 and AG-35 used with my IC-970A.
Except for one incident when I was keyed down and switched the satellite
mode switch and zapped the AG-25. Apparently the internal sequencer did
not expect me to do that.
--
Joe Leikhim
Leikhim and Associates
Communications
I've been using the SSB Electronic preamps for years now. Thye handle
the ~50 Watts from my FT-847 just fine.
73, Jim
On 02/16/2011 09:59 PM, Ted wrote:
I just sent my ARR pre amp back to ARR for repair for the 3rd time !
(pretty sure I did not tx through it )
What are people using for pre
I use preamps from SSB and have been very happy with them. Another popular
brand is Landwehr, as is ARR (with which you're having trouble).
My radio is an Icom IC-821 which provides power via the coax when in
receive-mode. The radio automatically removes the preamp power before keying
the
At 12:59 PM 2/16/2011, Ted wrote:
I just sent my ARR pre amp back to ARR for repair for the 3rd time !
(pretty sure I did not tx through it )
What are people using for pre amps. I only see the Mirage as an alternative.
Any other choices. I'm kind of disappointed in ARR products.
Is there a pre
Hi Ted,
I have an ARR 160 watt RF sense unit and it works great.
I also have a couple of SSB RF sense units and they
work great too.
73,
Tony AA2TX
AMSAT VP Engineering
---
At 04:59 PM 2/16/2011, Ted wrote:
I just sent my ARR pre amp back to ARR for repair for the 3rd time !
(pretty sure I
As others, SSB Electronics model that is RF switched. I *have* transmitted
100+ watts into it, though not on purpose, and it works just fine. I got the
RF switched model as a just in case bit of insurance, and am glad I did.
It's been reported here a few years ago that sometimes there's a
I think DEMI made those protectors. I never modified my K5GNA
downconverter, so my FT-847 was tuned to 123MHz to use it, and it
wouldn't transmit there.
Jim
On 02/17/2011 05:56 AM, Greg D. wrote:
As others, SSB Electronics model that is RF switched. I *have* transmitted
100+ watts into it,
What Greg is describing is an RF sensed high-power
attenuator. Downeast makes two products that can work to do this:
One is the AOS-144 ( $80.00) which switches RF thru a 50w attenuator
to a factory adjusted level from 10 up to 100mw output for driving a
transverter. The receive side is
