Any recommendation for amplifiers for my Icom Z1A?
I want to use it with my antennas while I no-so-patiently wait for the IC-9700.
Bob W7OTJ DN17
I forgot to mention that I have 65 feet of 9913F between my antennas/rotator and the radio hence the need for the amplifier. I do understand that if I was using an Arrow antenna (as I have in the past) with my Icom Z1A, I'd have no problem working the satellites.
Still, no replies?
Bob
On Tue, Feb 5, 2019 at 10:35 AM Bob Hammond propgrinder@gmail.com wrote:
Any recommendation for amplifiers for my Icom Z1A?
I want to use it with my antennas while I no-so-patiently wait for the IC-9700.
Bob W7OTJ DN17
Hello Bob,
I too am interested in VHF/UHF amplifier suggestions, but for a FT-817ND (with TCXO-9).
I am not sure about Mirage now that it is an MFJ brand. A lot of online reviews pre-date that transition. I am somewhat interested in the RM Italy products sold at DX Engineering.
On a related subject, I note the ARRL lab test of the FT-818 does not recommend amplifier use, which is disappointing as I suppose that reflects on the quality of it’s output signal.
I also hope there will be an IC-9700 in my future!
73 Ken VA7KBM
On Feb 6, 2019, at 7:32 AM, Bob Hammond <propgrinder@gmail.commailto:propgrinder@gmail.com> wrote:
I forgot to mention that I have 65 feet of 9913F between my antennas/rotator and the radio hence the need for the amplifier. I do understand that if I was using an Arrow antenna (as I have in the past) with my Icom Z1A, I'd have no problem working the satellites.
Still, no replies?
Bob
On Tue, Feb 5, 2019 at 10:35 AM Bob Hammond <propgrinder@gmail.commailto:propgrinder@gmail.com> wrote:
Any recommendation for amplifiers for my Icom Z1A?
I want to use it with my antennas while I no-so-patiently wait for the IC-9700.
Bob W7OTJ DN17
_______________________________________________ Sent via AMSAT-BB@amsat.orgmailto: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: http://www.amsat.org/mailman/listinfo/amsat-bb
I use a Microset VUR-30 with my dual FT-817 setup. The internal preamp is total trash and I don't use that, but it is nice to get the 20-30 watts out for lower elevations or breaking through pileups.
There are no US vendors, so I purchased mine from WiMo in Germany. https://www.wimo.com/amplifier-vhf-uhf_e.html
Was the OP asking about a preamp or a power amplifier?
73,
Paul, N8HM
On Thu, Feb 7, 2019 at 9:10 AM Ken M va7kbm@outlook.com wrote:
Hello Bob,
I too am interested in VHF/UHF amplifier suggestions, but for a FT-817ND (with TCXO-9).
I am not sure about Mirage now that it is an MFJ brand. A lot of online reviews pre-date that transition. I am somewhat interested in the RM Italy products sold at DX Engineering.
On a related subject, I note the ARRL lab test of the FT-818 does not recommend amplifier use, which is disappointing as I suppose that reflects on the quality of it’s output signal.
I also hope there will be an IC-9700 in my future!
73 Ken VA7KBM
On Feb 6, 2019, at 7:32 AM, Bob Hammond <propgrinder@gmail.commailto:propgrinder@gmail.com> wrote:
I forgot to mention that I have 65 feet of 9913F between my antennas/rotator and the radio hence the need for the amplifier. I do understand that if I was using an Arrow antenna (as I have in the past) with my Icom Z1A, I'd have no problem working the satellites.
Still, no replies?
Bob
On Tue, Feb 5, 2019 at 10:35 AM Bob Hammond <propgrinder@gmail.commailto:propgrinder@gmail.com> wrote:
Any recommendation for amplifiers for my Icom Z1A?
I want to use it with my antennas while I no-so-patiently wait for the IC-9700.
Bob W7OTJ DN17
Sent via AMSAT-BB@amsat.orgmailto: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: http://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: http://www.amsat.org/mailman/listinfo/amsat-bb
I was asking about a power amp. But it was suggested that for about the price of a V/U amplifier, I can get an Icom IC-2730A. I like that idea much better.
Bob
On Thu, Feb 7, 2019 at 6:23 AM Paul Stoetzer n8hm@arrl.net wrote:
I use a Microset VUR-30 with my dual FT-817 setup. The internal preamp is total trash and I don't use that, but it is nice to get the 20-30 watts out for lower elevations or breaking through pileups.
There are no US vendors, so I purchased mine from WiMo in Germany. https://www.wimo.com/amplifier-vhf-uhf_e.html
Was the OP asking about a preamp or a power amplifier?
73,
Paul, N8HM
On Thu, Feb 7, 2019 at 9:10 AM Ken M va7kbm@outlook.com wrote:
Hello Bob,
I too am interested in VHF/UHF amplifier suggestions, but for a FT-817ND
(with TCXO-9).
I am not sure about Mirage now that it is an MFJ brand. A lot of online
reviews pre-date that transition. I am somewhat interested in the RM Italy products sold at DX Engineering.
On a related subject, I note the ARRL lab test of the FT-818 does not
recommend amplifier use, which is disappointing as I suppose that reflects on the quality of it’s output signal.
I also hope there will be an IC-9700 in my future!
73 Ken VA7KBM
On Feb 6, 2019, at 7:32 AM, Bob Hammond <propgrinder@gmail.com<mailto:
propgrinder@gmail.com>> wrote:
I forgot to mention that I have 65 feet of 9913F between my antennas/rotator and the radio hence the need for the amplifier. I do understand that if I was using an Arrow antenna (as I have in the past) with my Icom Z1A, I'd have no problem working the satellites.
Still, no replies?
Bob
On Tue, Feb 5, 2019 at 10:35 AM Bob Hammond <propgrinder@gmail.com
mailto:propgrinder@gmail.com> wrote:
Any recommendation for amplifiers for my Icom Z1A?
I want to use it with my antennas while I no-so-patiently wait for the IC-9700.
Bob W7OTJ DN17
Sent via AMSAT-BB@amsat.orgmailto: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: http://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: http://www.amsat.org/mailman/listinfo/amsat-bb
On 2/6/19 2:37 PM, Ken M wrote:
On a related subject, I note the ARRL lab test of the FT-818 does not recommend amplifier use, which is disappointing as I suppose that reflects on the quality of it’s output signal.
This should be solvable with the appropriate output filter to knock down harmonics/spurious output.
A diplexer (such as the one at http://kw4fb.com/micro-diplexer) could be added before the amplifier on the 2m side, if that is the problem, with the 70cm port terminated in a 50 ohm load. On the 70cm path (or the 2m), one could apply a cavity filter (http://www.nx7u.net/4x3x5.html).
I don't have the ARRL test report, so I'm not sure why they don't think one should add an amplifier. If it is a transmitted phase noise problem, then, obviously, a filter won't solve the problem.
--- Zach N0ZGO
participants (4)
-
Bob Hammond -
Ken M -
Paul Stoetzer -
Zach Metzinger