My 22 year old Landwehr VHF preamp finally gave it up.
I'd appreciate leads on high quality mast mounted preamps for VHF. AR2 doesn't answer their phone and some uni's I work with say it takes days to get a call back then AR2 didn't have the one they wanted and said they would not be making any more. And SSB USA's recording says they are only available sporadically. Looks like I can order direct from SSB in Germany so that's an option.
Are there any low noise RF switched manufacturers/vendors in the U.S. these days? Where are folks getting preamps these days?
Jim
I find myself in the same boat! I've always depended on ARR for preamps, but they told me material cost to build the units will run the price up too much, so they decided to stop making the 2 M preamp I need. Here is one you might want to look into Jim. I've only used Mirage for their pw amps in the past, but have been fairly satisfied with their product and repair service. https://www.mirageamp.com/Product.php?productid=KP-2/2M
Dave, AA4KN
----- Original Message ----- From: "Jim White via AMSAT-BB" amsat-bb@amsat.org To: "AMSAT-BB" amsat-bb@amsat.org Sent: Thursday, November 07, 2019 4:02 PM Subject: [amsat-bb] Preamp source
My 22 year old Landwehr VHF preamp finally gave it up.
I'd appreciate leads on high quality mast mounted preamps for VHF. AR2 doesn't answer their phone and some uni's I work with say it takes days to get a call back then AR2 didn't have the one they wanted and said they would not be making any more. And SSB USA's recording says they are only available sporadically. Looks like I can order direct from SSB in Germany so that's an option.
Are there any low noise RF switched manufacturers/vendors in the U.S. these days? Where are folks getting preamps these days?
Jim
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Not U.S., but much more reasonably priced than some of the others, and I've been very pleased with the "Mini" pre-amps from their catalog: http://www.shf-elektronik.de/en/index.htm -- Mark D. Johns KØJM / MØGZO / ex-9H3DJ / ex-KØMDJ AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd ----------------------------------------------- "Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain
On Thu, Nov 7, 2019 at 3:10 PM n4csitwo--- via AMSAT-BB amsat-bb@amsat.org wrote:
I find myself in the same boat! I've always depended on ARR for preamps, but they told me material cost to build the units will run the price up too much, so they decided to stop making the 2 M preamp I need. Here is one you might want to look into Jim. I've only used Mirage for their pw amps in the past, but have been fairly satisfied with their product and repair service. https://www.mirageamp.com/Product.php?productid=KP-2/2M
Dave, AA4KN
----- Original Message ----- From: "Jim White via AMSAT-BB" amsat-bb@amsat.org To: "AMSAT-BB" amsat-bb@amsat.org Sent: Thursday, November 07, 2019 4:02 PM Subject: [amsat-bb] Preamp source
My 22 year old Landwehr VHF preamp finally gave it up.
I'd appreciate leads on high quality mast mounted preamps for VHF. AR2 doesn't answer their phone and some uni's I work with say it takes days to get a call back then AR2 didn't have the one they wanted and said they would not be making any more. And SSB USA's recording says they are only available sporadically. Looks like I can order direct from SSB in Germany so that's an option.
Are there any low noise RF switched manufacturers/vendors in the U.S. these days? Where are folks getting preamps these days?
Jim
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
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Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
I made this offer to Jim, so he has first option. I have both a ARR144vdg and 432vdg in excellent condition excess to my needs. I'd prefer to sell the pair $250 shipped conus. Pic's available on request. Paypal preferred.
73, Roger W7TZ CN83ia Grid Busters w7tz.webs.com
On Thu, Nov 7, 2019 at 1:27 PM Mark D. Johns via AMSAT-BB < amsat-bb@amsat.org> wrote:
Not U.S., but much more reasonably priced than some of the others, and I've been very pleased with the "Mini" pre-amps from their catalog: http://www.shf-elektronik.de/en/index.htm -- Mark D. Johns KØJM / MØGZO / ex-9H3DJ / ex-KØMDJ AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd
"Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain
On Thu, Nov 7, 2019 at 3:10 PM n4csitwo--- via AMSAT-BB amsat-bb@amsat.org wrote:
I find myself in the same boat! I've always depended on ARR for preamps,
but
they told me material cost to build the units will run the price up too much, so they decided to stop making the 2 M preamp I need. Here is one you might want to look into Jim. I've only used Mirage for
their
pw amps in the past, but have been fairly satisfied with their product
and
repair service. https://www.mirageamp.com/Product.php?productid=KP-2/2M
Dave, AA4KN
----- Original Message ----- From: "Jim White via AMSAT-BB" amsat-bb@amsat.org To: "AMSAT-BB" amsat-bb@amsat.org Sent: Thursday, November 07, 2019 4:02 PM Subject: [amsat-bb] Preamp source
My 22 year old Landwehr VHF preamp finally gave it up.
I'd appreciate leads on high quality mast mounted preamps for VHF. AR2 doesn't answer their phone and some uni's I work with say it takes
days to
get a call back then AR2 didn't have the one they wanted and said they would not be making any more. And SSB USA's recording says they are
only
available sporadically. Looks like I can order direct from SSB in
Germany
so that's an option.
Are there any low noise RF switched manufacturers/vendors in the U.S. these days? Where are folks getting preamps these days?
Jim
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership.
Opinions
expressed are solely those of the author, and do not reflect the official views
of
AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite
program!
Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership.
Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite
program!
Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
Dave,
I tried Mirage way back when and found the NF not so good. In about 91ish when I was the command station for AO-16 and DO-17 I remember changing out a Mirage for an ARR and it made a measurable difference on UHF. I see on their current datasheet it's still not as good as SSB and ARR (and probably others).
Having said that it's probably fine for most uses and $100 less than the SSB I just ordered.
On 11/7/2019 2:09 PM, n4csitwo@bellsouth.net wrote:
I find myself in the same boat! I've always depended on ARR for preamps, but they told me material cost to build the units will run the price up too much, so they decided to stop making the 2 M preamp I need. Here is one you might want to look into Jim. I've only used Mirage for their pw amps in the past, but have been fairly satisfied with their product and repair service. https://www.mirageamp.com/Product.php?productid=KP-2/2M
Dave, AA4KN
----- Original Message ----- From: "Jim White via AMSAT-BB" amsat-bb@amsat.org To: "AMSAT-BB" amsat-bb@amsat.org Sent: Thursday, November 07, 2019 4:02 PM Subject: [amsat-bb] Preamp source
My 22 year old Landwehr VHF preamp finally gave it up.
I'd appreciate leads on high quality mast mounted preamps for VHF. AR2 doesn't answer their phone and some uni's I work with say it takes days to get a call back then AR2 didn't have the one they wanted and said they would not be making any more. And SSB USA's recording says they are only available sporadically. Looks like I can order direct from SSB in Germany so that's an option.
Are there any low noise RF switched manufacturers/vendors in the U.S. these days? Where are folks getting preamps these days?
Jim
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
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On 2019-11-07 15:02, Jim White via AMSAT-BB wrote:
Are there any low noise RF switched manufacturers/vendors in the U.S. these days? Where are folks getting preamps these days?
This one looks like a good design:
https://vhfdesign.com/lna/lna-rf-vox-pga-103-series.html
One could almost build one's own board from the pictures off the website.
--- Zach N0ZGO
You might check out SHF Elektronic
http://www.shf-elektronik.de/en/
I use their 903 and 2304 preamps. Work well and a lot of options.
Mike
On 11/7/2019 4:02 PM, Jim White via AMSAT-BB wrote:
My 22 year old Landwehr VHF preamp finally gave it up.
I'd appreciate leads on high quality mast mounted preamps for VHF. AR2 doesn't answer their phone and some uni's I work with say it takes days to get a call back then AR2 didn't have the one they wanted and said they would not be making any more. And SSB USA's recording says they are only available sporadically. Looks like I can order direct from SSB in Germany so that's an option.
Are there any low noise RF switched manufacturers/vendors in the U.S. these days? Where are folks getting preamps these days?
Jim
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
participants (6)
-
Jim White -
Mark D. Johns -
Mike Seguin -
n4csitwo＠bellsouth.net -
Roger - W7TZ -
Zach Metzinger