Sam – Yes, I imagine that the PAG103+ would make a very nice amplifier with adequate filtering. The interesting aspect of the ALN0140WT is that it is not broadband, but rather tuned to 144 MHz. I am in conversation with the manufacturer to try and get some at a reasonable price. As for Dayton, it’s the Midwest in Springtime. It always rains at some point or another during the Hamvention, it seems. 73, W9IP From: Sam Jewell [mailto:jewell@btinternet.com] Sent: Monday, May 20, 2013 2:35 PM To: Owen, Michael Cc: Rick Muller; <moon-net(a)nlsa.com> Subject: Re: [Moon-Net] interesting 144 LNA device I had lots of the little, low cost PGA103+ amplifier kits at Dayton. Not too much interest, sadly. Kent, WA5VJB, still has lots of devices and PCBs in stock and once he's recovered from Dayton should be able to supply kits. If you read my PDF you'll see that these devices do make a very nice little 144MHz ( and other band) preamps, but for 144MHz I would recommend a 130MHz HPF to reduce input from band 2 FM. This is detailed in the PDF. BTW, I thoroughly enjoyed my weekend at Dayton, although we had heavy rain for a few hours on Saturday morning, the rest of the time the weather was quite benign. It was so good to see so many old friends again and to 'chew the cud' over all sorts of amateur radio matters. 73 de Sam, G4DDK/W5DDK Sent tomorrow from my time machine g4ddk.com g4ddk.blogspot.com On 16 May 2013, at 17:14, "Owen, Michael" <Michael.Owen(a)saabsensis.com> wrote: Dear friends, I wrote to their sales office in late October of 2012. Here is their reply… The below are the price that you requested. 1) Model : ALN0140WT 2) Price : $12.0/pcs also need to add freight charge $90 per p.o 3) Lead time : 3 weeks 4) Shipping terms: FOB San Diego, CA 5) Payment terms : net 30 days The unit price is all right but shipping is nuts. I just wrote again to see whether they are more readily available in North America… will report back. 73, W9IP From: moon-net-bounces(a)mailman.pe1itr.com [mailto:moon-net-bounces@mailman.pe1itr.com] On Behalf Of Rick Muller Sent: Thursday, May 16, 2013 7:47 AM To: moon-net(a)nlsa.com Subject: [Moon-Net] interesting 144 LNA device Anybody using a 144 mc LNA device called ALN0140WT ? Specs look very interesting .. but are they for sale ??? 73’s Rick ,PA1BVM -- The information contained in this communication and any attachments is confidential and may be privileged, and is for the sole use of the intended recipient(s). Any unauthorized review, use, disclosure or distribution is prohibited. Unless explicitly stated otherwise in the body of this communication or the attachment thereto (if any), the information is provided on an AS-IS basis without any express or implied warranties or liabilities. To the extent you are relying on this information, you are doing so at your own risk. If you are not the intended recipient, please notify the sender immediately by replying to this message and destroy all copies of this message and any attachments. ASML is neither liable for the proper and complete transmission of the information contained in this communication, nor for any delay in its receipt. 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 - 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. -

Just a small addition to the LNA discussion. John, G4SWX, alerted me to the YU1LM low loss 144MHz bandpass filter design ( google on the YU1LM callsign). This is most suitable for use in front of the PGA Amp where extra out of band filtering is required and the 130MHz filter is not enough. It is possible to truncate the design to a single stage for even lower loss, but poorer stop band. 73 de Sam, G4DDK Sent tomorrow from my time machine g4ddk.com g4ddk.blogspot.com On 16 May 2013, at 19:00, "Bodo Heyl" <bodoheyl(a)t-online.de> wrote:

No, that is about right. I wasn't suggesting you use the three stage ahead of the preamp. The single stage version is similar to the DJ7VY and I have measured that at around 0.25dB. The three stage is best used after the preamp. I measured about 1.8dB for at least one of my own built YU1LM filters. The single stage requires an inductor with a lot more Q and takes up a lot more space. That design appeared in VHF Comms in the late 1970s or early 1980s and was included in the article on the two stage high dynamic range preamp that used a BFT66 and BFR34. Some of you might remember that design? The original YU1LM looks like it was only ever modelled. Never built and measured. However, of the designs I have come up with and used from elsewhere, this one is one of the most reproducible as long as you don't believe the model! I apologise if I misled anyone with my previous e-mail. I have been flamed for it! 73 de Sam, G4DDK Sent tomorrow from my time machine g4ddk.com g4ddk.blogspot.com On 21 May 2013, at 15:05, Steffen Minack DD0VF <stdd0vf(a)googlemail.com> wrote: