>Hi Try Test Parts in Georgia...Terry Burton a Ham Operator
>owns the business
706-361-0825 when whoever answers ask for Terry.
Andy WA2FGK
>Dear friends,
>
>I'm looking for eight 75 Ohm type N panel-mount receptacles. The
>only source that I have found is
><https://www.pasternack.com/n-female-standard-solder-cup-terminal-connector-…>Pasternak,
>at $12.50/ea. I'd like to do better. Pointers appreciated.
>
>73,
>W9IP
>
>
>------------------------
>Michael R. Owen, Ph.D.
>Senior Systems Engineer
>Saab Defense and Security USA LLC
>
>Direct +1 315 634 3066
><mailto:lars.borgwingd@saabusa.coml>michael.owen(a)saabusa.com
>
>5717 Enterprise Parkway
>East Syracuse, NY 13057
><http://www.saabusa.com>www.saabusa.com
>
>[]
>
>
>------------------------
>
>This message is intended only for the addressee and may contain
>information that is company confidential or privileged. Any
>technical data in this message may be exported only in accordance
>with the U.S. International Traffic in Arms Regulations (22 CFR
>Parts 120-130) or the Export Administration Regulations (15 CFR
>Parts 730-774). Unauthorized use is strictly prohibited and may be
>unlawful. If you are not the intended recipient, or the person
>responsible for delivering to the intended recipient, you should not
>read, copy, disclose or otherwise use this message. If you have
>received this email in error, please delete it, and advise the
>sender immediately.
>
>_______________________________________________
>Moon-Net posting and subscription instructions are at
>http://www.nlsa.com/nets/moon-net-help.html
Dear friends,
I'm looking for eight 75 Ohm type N panel-mount receptacles. The only source that I have found is Pasternak<https://www.pasternack.com/n-female-standard-solder-cup-terminal-connector-…>, at $12.50/ea. I'd like to do better. Pointers appreciated.
73,
W9IP
------------------------
Michael R. Owen, Ph.D.
Senior Systems Engineer
Saab Defense and Security USA LLC
Direct +1 315 634 3066
michael.owen(a)saabusa.com<mailto:lars.borgwingd@saabusa.coml>
5717 Enterprise Parkway
East Syracuse, NY 13057
www.saabusa.com<http://www.saabusa.com>
[cid:image001.png@01CF49C2.2C972620]
------------------------
This message is intended only for the addressee and may contain information that is company confidential or privileged. Any technical data in this message may be exported only in accordance with the U.S. International Traffic in Arms Regulations (22 CFR Parts 120-130) or the Export Administration Regulations (15 CFR Parts 730-774). Unauthorized use is strictly prohibited and may be unlawful. If you are not the intended recipient, or the person responsible for delivering to the intended recipient, you should not read, copy, disclose or otherwise use this message. If you have received this email in error, please delete it, and advise the sender immediately.
My wife & I will be in Costa Rica from April 12 to the 26th . We will be staying at the Hilton Papagayo twenty minutes from Liberia. We would like to meet EME folks or want to be EME folks. Looking forward to thaw out after an Horrendous winter.
Serge VE1KG
Hi Loren, I have found a satellite dish in the dumpster before going to work. It was for Dish Network that somebody had thrown away. As I pulled it out I looked at the back part of the dish mounting and found that there was a mechanism that was for elevating the dish. So I took the dish off and all the other junk, like the bolts that lock the elevation into place. Now I have just the elevation assembly mount that free flows up and down. I have to get a piece of tubing to weld to the top plate of the assembly, but yet I still have to decide what size tubing so I can tap in 3 places to fit bolts to tighten the smaller PVC tubing that will fit into the base tubing. The 432 Mhz 18 element will be mounted on the PVC for an insulation purpose. You might look for a scrap dish or a manufacture that produces dishes so you can get that assembly as a part. And yes, a piece of rope on ether side of the boom of your yagi will control your elevation. I hope this helps.
Best 73,
Ronny Bolsega KG7A
On 3/27/2014 11:53 AM, Máximo EA1DDO_HK1H wrote:
> Please, let me know how much is the shipping cost and how I can pay
> that to you.
I never charge on donation preamps ... the little profit on the ones I
sell pays that.
Good DX,
Pete WA2ODO
>
> Thank you very much
>
> 73, Maximo
>
>
>
>
> ------------------------------------------------------------------------
> Date: Thu, 27 Mar 2014 11:41:53 -0400
> From: pmanfre(a)gmail.com
> To: ea1ddo(a)hotmail.com; moon-net(a)mailman.pe1itr.com
> Subject: Re: [Moon-Net] 144mhz LNA 30db/0,4Nf
>
> Will go out in tomorrows mail. It has been packed and the tracking is
> LZ 319 785 839 US
>
> Pete
>
> On 3/27/2014 11:24 AM, PeteM wrote:
>
>
>
> ....sent from cell phone…
> On Mar 27, 2014 11:12 AM, "Máximo EA1DDO_HK1H" <ea1ddo(a)hotmail.com
> <mailto:ea1ddo@hotmail.com>> wrote:
> >
> > Good to hear that from you.
> > If you certainly wanted to send it, you are still in time. I´ll
> be happy to use one of your preamps in my next activation from HK,
> and you will become "HK1H sponsor".
> > If you finally want to send it, I´ll pay the shipping. Just let
> me know.
> >
> Certainly, this has always been my position. I will send it
> priority mail as a gift with no insurance. I will send a
> tracking number.
> Pete WA2ODO
> > Maximo Martin
> > 8 Waterside Gardens
> > Reading, RG1 6QE
> > Berkshire
> > United Kingdom
> >
> > Thank you very much
> >
> > 73, Maximo
> >
> >
> >
> >
> > ________________________________
> > Date: Thu, 27 Mar 2014 06:26:48 -0400
> > Subject: RE: [Moon-Net] 144mhz LNA 30db/0,4Nf
> > From: pmanfre(a)gmail.com <mailto:pmanfre@gmail.com>
> > To: ea1ddo(a)hotmail.com <mailto:ea1ddo@hotmail.com>;
> moon-net(a)mailman.pe1itr.com <mailto:moon-net@mailman.pe1itr.com>
> >
> >
> >
> > I am truly sorry about how things happened. I really did not
> get any further emails like I said. I would have certainly sent
> you the free preamps. It is the only reason I make any profits
> from making the preamps is to supply the free ones.
> > I suggest to anyone not getting an answer from a direct email
> to them try the reflector. I rarely look in the spam folder so
> some emails could always be there .
> > Pete
> > ....sent from cell phone…
> > On Mar 27, 2014 4:22 AM, "Máximo EA1DDO_HK1H"
> <ea1ddo(a)hotmail.com <mailto:ea1ddo@hotmail.com>> wrote:
> >>
> >> Hello Pete,
> >>
> >> It is great to see how you quickly answer to these emails. Next
> time I can see what I have to do to contact you, just write you in
> the mail list.
> >>
> >> Anyway, Pete, I guess you are a great man, an electronics
> master and preamp gurú. Many guys are pleased about your preamps,
> and pleased as well with your service and collaboration. I know
> you support many guys and dxpeditions.
> >> So, it seems it is only my bad luck.
> >>
> >> One thing is true, I am not a lier.
> >> At the end of our first contact, you sent me to ask for an
> offer to DB6NT.
> >> Past year, after my HK EME activation notice, you offered a
> preamp to me without any request from me, as we can read below,
> that is true. But it is true as well i sent three, four or five
> email to you to get that preamp to use in the HK activation and i
> got no answer from you.
> >> Finally I had to get a different preamp to be able to activate HK.
> >>
> >> Anyway pete, you are a great man, and I am not a lier, so
> perhaps everything is a big mistake.
> >> Even when I had bad luck with you, I thank you for your support
> to the EME community and to supply those great preamps to many guys.
> >>
> >> May be in our next lives I get better luck.
> >>
> >> Thank you anyway.
> >>
> >> 73, Maximo - EA1DDO & HK1H
> >>
> >>
> >> ________________________________
> >> Date: Wed, 26 Mar 2014 18:02:34 -0400
> >> From: pmanfre(a)gmail.com <mailto:pmanfre@gmail.com>
> >> To: ea1ddo(a)hotmail.com <mailto:ea1ddo@hotmail.com>;
> Moon-Net(a)nlsa.com <mailto:Moon-Net@nlsa.com>
> >> Subject: Re: [Moon-Net] 144mhz LNA 30db/0,4Nf
> >>
> >> Maximo,
> >>
> >> Maybe there was a translation error between us.
> >>
> >> Correct... I remember this now, and those emails are no longer
> in the computer since the crash. Since I make $7 on each preamp I
> felt it not right to ask for a better price when the price is half
> of the cheapest ones out there. They cost $78 to make at that time
> ( now more) and was selling them for $85 with profits paying for
> the free donation ones. I am not a business just a ham making
> them to help EME'rs .
> >>
> >> ALSO, you forgot to mention I offered to make you a 144 and 432
> FREE for your DXpedition and you never replied with an answer and
> an address to send them too.
> >>
> >>
> >> See below the free offer.
> >>
> >>
> >> Date: Sun, 21 Apr 2013 11:41:42 -0400
> >> From: pmanfre(a)gmail.com <mailto:pmanfre@gmail.com>
> >> To: ea1ddo(a)hotmail.com <mailto:ea1ddo@hotmail.com>
> >> Subject: Re: [Moon-Net] EME Installation Advice - HK1H
> >>
> >> I can send you some preamps for 144 and 432 ( I have to make
> them which I will do next month.) ...if this is a legitimate
> DXpedition listed on Make More Miles...if you would like
> >>
> >> Pete WA2ODO
> >>
> >>
> >> On 4/21/2013 11:17 AM, Máximo EA1DDO_HK1H wrote:
> >> Hi all,
> >>
> >> This August I´ll be at HK1H for more than a month.
> >> As usual, it is a family trip, but I hope to have some free
> time to do some radio including EME to provide HK to who needs it.
> >>
> >> The radio installation needs to be done, nothing is ready, so
> it will take some days/weeks to get it on air. the main issue is
> that some things needs to be built from zero.
> >>
> >> Actually there are over there;
> >>
> >> .- Yaesu FT-736R with 144, 432 1296 MHz modules
> >> .- 4 x 17B2 CushCraft for 144 MHz
> >> .- 2 x UB4031DX Hy-Gayn for 432 MHz
> >> .- A 12v power supply, ROE/SWR meter, Ecoflex10, 5 meters
> tower, computer, GPS..
> >>
> >> So, it needs a lot of job to do and many things to add.
> >> My plan is to buy now and bring with me;
> >>
> >> .- 4 ports combiner for 144 MHz
> >> .- 2 ports combiner for 432 MHz
> >> .- 144 MHz preamp
> >> .- 432 Mhz preamp
> >>
> >> I already have here;
> >>
> >> .- 500w 144 MHz amplifier with power supply (Italab box).
> >>
> >>
> >> My idea is to operate only 144 MHz.
> >> For 432 and 1296 MHz I need to many things I don´t have, I need
> most of them, so those bands will be activated in next trips,
> hopefully.
> >>
> >> To operate in 144 MHz I am thinking to use separate Rx and Tx
> lines for 144 MHz, installing a relay at the antennas.
> >> Preamp in the Rx port and amplifier in the Tx line.
> >> What relay do you recomend?
> >> I am thinking on a CZX-3500
> >> It seems to have around 60db ports isolation at 144 MHz.
> >> Is that enough or do I need extra relay and/or delay?
> >>
> >> As you noticed, I don´t have rotor yet.
> >> I like Prosistel but it is expensive and only azimuth, so I
> thought on the Alfa Spid RAS AZ & EL. I don´t like it so much but
> it is plug and play.
> >> What you think about the rotator option?
> >>
> >> So, if not many things fails, in August will be HK off the Moon
> again for all you need it.
> >>
> >> Thank you very much for advice.
> >>
> >> 73, Maximo - EA1DDO & HK1H & M0HAO
> >>
> >>
> >>
> >>
> >>
> >> On 3/26/2014 5:12 PM, Máximo EA1DDO_HK1H wrote:
> >>>
> >>>
> >>> ________________________________
> >>> Date: Fri, 16 Sep 2011 15:49:47 -0400
> >>> From: pmanfre(a)gmail.com <mailto:pmanfre@gmail.com>
> >>> To: ea1ddo(a)hotmail.com <mailto:ea1ddo@hotmail.com>
> >>> Subject: Re: 144 MHz preamp Dx style
> >>>
> >>> On 9/16/2011 3:24 PM, Máximo EA1DDO_HK1H wrote:
> >>>>
> >>>> Hi Pete,
> >>>>
> >>>> Actually I am located in UK (working close to London).
> >>>> What is your best offer to send one of them to UK?
> >>>
> >>>
> >>> I do not make or take offers. My suggestion is to buy on from
> DB6NT ...see if they will take an offer.
> >>>
> >>> Pete
> >>>
> >>>
> >>>> (preamp+shipping)
> >>>>
> >>>> Thanks
> >>>>
> >>>> 73, Maximo - EA1DDO
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> ________________________________
> >>>>
> >>>
> >>>
> >>> _______________________________________________
> >>> Moon-Net posting and subscription instructions are at
> http://www.nlsa.com/nets/moon-net-help.html
> >>>
> >>
> >>
> >> --
> >> Deputy Sheriff, LACOSO
> >> Ft. Mill, SC
> >>
> >> ++++++CONFIDENTIALITY NOTICE++++++
> >> The information in this email may be confidential and/or
> privileged. This email is intended to be reviewed by only the
> individual or organization named above. If you are not the
> intended recipient or an authorized representative of the intended
> recipient, you are hereby notified that any review, dissemination
> or copying of this email and its attachments, if any, or the
> information contained herein is prohibited. If you have received
> this email in error, please immediately notify the sender by
> return email and delete this email from your system.
>
>
>
> --
> Deputy Sheriff, LACOSO
> Ft. Mill, SC
>
> ++++++CONFIDENTIALITY NOTICE++++++
> The information in this email may be confidential and/or privileged. This email is intended to be reviewed by only the individual or organization named above. If you are not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any review, dissemination or copying of this email and its attachments, if any, or the information contained herein is prohibited. If you have received this email in error, please immediately notify the sender by return email and delete this email from your system.
--
Deputy Sheriff, LACOSO
Ft. Mill, SC
++++++CONFIDENTIALITY NOTICE++++++
The information in this email may be confidential and/or privileged. This email is intended to be reviewed by only the individual or organization named above. If you are not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any review, dissemination or copying of this email and its attachments, if any, or the information contained herein is prohibited. If you have received this email in error, please immediately notify the sender by return email and delete this email from your system.
Will go out in tomorrows mail. It has been packed and the tracking is
LZ 319 785 839 US
Pete
On 3/27/2014 11:24 AM, PeteM wrote:
>
>
> ....sent from cell phone...
> On Mar 27, 2014 11:12 AM, "Máximo EA1DDO_HK1H" <ea1ddo(a)hotmail.com
> <mailto:ea1ddo@hotmail.com>> wrote:
> >
> > Good to hear that from you.
> > If you certainly wanted to send it, you are still in time. I´ll be
> happy to use one of your preamps in my next activation from HK, and
> you will become "HK1H sponsor".
> > If you finally want to send it, I´ll pay the shipping. Just let me know.
> >
> Certainly, this has always been my position. I will send it
> priority mail as a gift with no insurance. I will send a tracking
> number.
>
> Pete WA2ODO
>
> > Maximo Martin
> > 8 Waterside Gardens
> > Reading, RG1 6QE
> > Berkshire
> > United Kingdom
> >
> > Thank you very much
> >
> > 73, Maximo
> >
> >
> >
> >
> > ________________________________
> > Date: Thu, 27 Mar 2014 06:26:48 -0400
> > Subject: RE: [Moon-Net] 144mhz LNA 30db/0,4Nf
> > From: pmanfre(a)gmail.com <mailto:pmanfre@gmail.com>
> > To: ea1ddo(a)hotmail.com <mailto:ea1ddo@hotmail.com>;
> moon-net(a)mailman.pe1itr.com <mailto:moon-net@mailman.pe1itr.com>
> >
> >
> >
> > I am truly sorry about how things happened. I really did not get
> any further emails like I said. I would have certainly sent you the
> free preamps. It is the only reason I make any profits from making
> the preamps is to supply the free ones.
> > I suggest to anyone not getting an answer from a direct email to
> them try the reflector. I rarely look in the spam folder so some
> emails could always be there .
> > Pete
> > ....sent from cell phone...
> > On Mar 27, 2014 4:22 AM, "Máximo EA1DDO_HK1H" <ea1ddo(a)hotmail.com
> <mailto:ea1ddo@hotmail.com>> wrote:
> >>
> >> Hello Pete,
> >>
> >> It is great to see how you quickly answer to these emails. Next
> time I can see what I have to do to contact you, just write you in the
> mail list.
> >>
> >> Anyway, Pete, I guess you are a great man, an electronics master
> and preamp gurú. Many guys are pleased about your preamps, and pleased
> as well with your service and collaboration. I know you support many
> guys and dxpeditions.
> >> So, it seems it is only my bad luck.
> >>
> >> One thing is true, I am not a lier.
> >> At the end of our first contact, you sent me to ask for an offer to
> DB6NT.
> >> Past year, after my HK EME activation notice, you offered a preamp
> to me without any request from me, as we can read below, that is true.
> But it is true as well i sent three, four or five email to you to get
> that preamp to use in the HK activation and i got no answer from you.
> >> Finally I had to get a different preamp to be able to activate HK.
> >>
> >> Anyway pete, you are a great man, and I am not a lier, so perhaps
> everything is a big mistake.
> >> Even when I had bad luck with you, I thank you for your support to
> the EME community and to supply those great preamps to many guys.
> >>
> >> May be in our next lives I get better luck.
> >>
> >> Thank you anyway.
> >>
> >> 73, Maximo - EA1DDO & HK1H
> >>
> >>
> >> ________________________________
> >> Date: Wed, 26 Mar 2014 18:02:34 -0400
> >> From: pmanfre(a)gmail.com <mailto:pmanfre@gmail.com>
> >> To: ea1ddo(a)hotmail.com <mailto:ea1ddo@hotmail.com>;
> Moon-Net(a)nlsa.com <mailto:Moon-Net@nlsa.com>
> >> Subject: Re: [Moon-Net] 144mhz LNA 30db/0,4Nf
> >>
> >> Maximo,
> >>
> >> Maybe there was a translation error between us.
> >>
> >> Correct... I remember this now, and those emails are no longer in
> the computer since the crash. Since I make $7 on each preamp I felt it
> not right to ask for a better price when the price is half of the
> cheapest ones out there. They cost $78 to make at that time ( now
> more) and was selling them for $85 with profits paying for the free
> donation ones. I am not a business just a ham making them to help
> EME'rs .
> >>
> >> ALSO, you forgot to mention I offered to make you a 144 and 432
> FREE for your DXpedition and you never replied with an answer and an
> address to send them too.
> >>
> >>
> >> See below the free offer.
> >>
> >>
> >> Date: Sun, 21 Apr 2013 11:41:42 -0400
> >> From: pmanfre(a)gmail.com <mailto:pmanfre@gmail.com>
> >> To: ea1ddo(a)hotmail.com <mailto:ea1ddo@hotmail.com>
> >> Subject: Re: [Moon-Net] EME Installation Advice - HK1H
> >>
> >> I can send you some preamps for 144 and 432 ( I have to make them
> which I will do next month.) ...if this is a legitimate DXpedition
> listed on Make More Miles...if you would like
> >>
> >> Pete WA2ODO
> >>
> >>
> >> On 4/21/2013 11:17 AM, Máximo EA1DDO_HK1H wrote:
> >> Hi all,
> >>
> >> This August I´ll be at HK1H for more than a month.
> >> As usual, it is a family trip, but I hope to have some free time to
> do some radio including EME to provide HK to who needs it.
> >>
> >> The radio installation needs to be done, nothing is ready, so it
> will take some days/weeks to get it on air. the main issue is that
> some things needs to be built from zero.
> >>
> >> Actually there are over there;
> >>
> >> .- Yaesu FT-736R with 144, 432 1296 MHz modules
> >> .- 4 x 17B2 CushCraft for 144 MHz
> >> .- 2 x UB4031DX Hy-Gayn for 432 MHz
> >> .- A 12v power supply, ROE/SWR meter, Ecoflex10, 5 meters tower,
> computer, GPS..
> >>
> >> So, it needs a lot of job to do and many things to add.
> >> My plan is to buy now and bring with me;
> >>
> >> .- 4 ports combiner for 144 MHz
> >> .- 2 ports combiner for 432 MHz
> >> .- 144 MHz preamp
> >> .- 432 Mhz preamp
> >>
> >> I already have here;
> >>
> >> .- 500w 144 MHz amplifier with power supply (Italab box).
> >>
> >>
> >> My idea is to operate only 144 MHz.
> >> For 432 and 1296 MHz I need to many things I don´t have, I need
> most of them, so those bands will be activated in next trips, hopefully.
> >>
> >> To operate in 144 MHz I am thinking to use separate Rx and Tx lines
> for 144 MHz, installing a relay at the antennas.
> >> Preamp in the Rx port and amplifier in the Tx line.
> >> What relay do you recomend?
> >> I am thinking on a CZX-3500
> >> It seems to have around 60db ports isolation at 144 MHz.
> >> Is that enough or do I need extra relay and/or delay?
> >>
> >> As you noticed, I don´t have rotor yet.
> >> I like Prosistel but it is expensive and only azimuth, so I thought
> on the Alfa Spid RAS AZ & EL. I don´t like it so much but it is plug
> and play.
> >> What you think about the rotator option?
> >>
> >> So, if not many things fails, in August will be HK off the Moon
> again for all you need it.
> >>
> >> Thank you very much for advice.
> >>
> >> 73, Maximo - EA1DDO & HK1H & M0HAO
> >>
> >>
> >>
> >>
> >>
> >> On 3/26/2014 5:12 PM, Máximo EA1DDO_HK1H wrote:
> >>>
> >>>
> >>> ________________________________
> >>> Date: Fri, 16 Sep 2011 15:49:47 -0400
> >>> From: pmanfre(a)gmail.com <mailto:pmanfre@gmail.com>
> >>> To: ea1ddo(a)hotmail.com <mailto:ea1ddo@hotmail.com>
> >>> Subject: Re: 144 MHz preamp Dx style
> >>>
> >>> On 9/16/2011 3:24 PM, Máximo EA1DDO_HK1H wrote:
> >>>>
> >>>> Hi Pete,
> >>>>
> >>>> Actually I am located in UK (working close to London).
> >>>> What is your best offer to send one of them to UK?
> >>>
> >>>
> >>> I do not make or take offers. My suggestion is to buy on from
> DB6NT ...see if they will take an offer.
> >>>
> >>> Pete
> >>>
> >>>
> >>>> (preamp+shipping)
> >>>>
> >>>> Thanks
> >>>>
> >>>> 73, Maximo - EA1DDO
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> ________________________________
> >>>>
> >>>
> >>>
> >>> _______________________________________________
> >>> Moon-Net posting and subscription instructions are at
> http://www.nlsa.com/nets/moon-net-help.html
> >>>
> >>
> >>
> >> --
> >> Deputy Sheriff, LACOSO
> >> Ft. Mill, SC
> >>
> >> ++++++CONFIDENTIALITY NOTICE++++++
> >> The information in this email may be confidential and/or
> privileged. This email is intended to be reviewed by only the
> individual or organization named above. If you are not the intended
> recipient or an authorized representative of the intended recipient,
> you are hereby notified that any review, dissemination or copying of
> this email and its attachments, if any, or the information contained
> herein is prohibited. If you have received this email in error, please
> immediately notify the sender by return email and delete this email
> from your system.
>
--
Deputy Sheriff, LACOSO
Ft. Mill, SC
++++++CONFIDENTIALITY NOTICE++++++
The information in this email may be confidential and/or privileged. This email is intended to be reviewed by only the individual or organization named above. If you are not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any review, dissemination or copying of this email and its attachments, if any, or the information contained herein is prohibited. If you have received this email in error, please immediately notify the sender by return email and delete this email from your system.
Tom,
I agree with you concerning the older MAR4/6/11 devices.
However, I think that you will find that the PHA1+ is closer to 16+dB gain
which would indicate an input IP3 of +25dBm
In tests we have found the MGA 30689 to only have 14.5dB gain at 144MHz, so
with a nearly identical OIP3 it will have a dB or so advantage on input IP3.
The other device to consider is the ADL5535 which has an OIP3 of 45.5dBm and
16dB of gain.
I would put a bandpass filter between the front end and second stage to
minimise intermodulation products generated by out of band signals.
After a number of tests we selected the MGA 30689 for a post mixer amplifier
in a 144/28MHz transverter although all three were far better than the
mixer!
73
John G4SWX
Date: Thu, 27 Mar 2014 06:25:05 -0400
From: <w2drz(a)ramcoinc.com>
Subject: Re: [Moon-Net] 144mhz LNA 30db/0,4Nf
To: "Stephen Hanselman" <eme(a)kc4sw.com>, "Edward R Cole"
<kl7uw(a)acsalaska.net>
Cc: Moon-Net(a)nlsa.com, Bent Andersen <eskolin(a)gmail.com>
Message-ID: <C8456DF55A5F425588590C2DC55AE26D@workcad>
Content-Type: text/plain; charset="iso-8859-1"
Hi Ed,
The part that I look at is P3 and 1 db compression That will radically set
the garbage IN THE RECEIVER OBSERVED, vary with location.
Here 20 years ago had to go with much improved IMD resistance transverter
redesign to operate on the ham bands do to commercial and cell stations.
so if was building new equipment would observe the practice of using high P3
devices in new construction.
As to failure that I would look at the mounting technique to provide device
cooling as needed for the PHA-1 device, that is a 2 separate mount tabs to
circuit board .
The change to a MAR-6 is wrong direction for today's receiver preamps over
the new HI P3 devices and Hi 1 db compression specs.
Mar-6 is about +3 dbm =1db compression
P3 is +14.5 dbm
In the suggestion for a 2nd stage amp this is what I looked at to use in
this design suggestion.
PHA-1+ is 22.4 db =1db compression
P3 is +42.0 dbm
As you can see a large improvements over the MAR-6 device.
This will be a major improvement for IMD and overload in the new design over
the old design.
as to the failure of the PHA-1 in your circuit, that is a subject to be
looked into as I suspect that device mounting may be the culprit,
have not looked at failure life that minicircuits engineering specifies for
that device on their site.
As I am not building stuff now this information can be found on the
minicircuits site to see why you had failures using that device.
In closing I would NOT use a MAR-6 for a second amp in today's new devices
and design.
tom W2DRZ
Date: Fri, 16 Sep 2011 15:49:47 -0400
From: pmanfre(a)gmail.com
To: ea1ddo(a)hotmail.com
Subject: Re: 144 MHz preamp Dx style
On 9/16/2011 3:24 PM, Máximo EA1DDO_HK1H wrote:
Hi Pete,
Actually I am located in UK (working close to London).
What is your best offer to send one of them to UK?
I do not make or take offers. My suggestion
is to buy on from DB6NT ...see if they will take an offer.
Pete
(preamp+shipping)
Thanks
73, Maximo - EA1DDO
