G4ddk Amplifier For Sale

Price including shipment EU. According to the release notes, it can comfortably produce 10 Watts from a 12V supply and will not overheat even on continuous 100% duty-cycle operation. htm 4/3/2018 Remove 1st 150W 1296 PA. 3GHz compared to 100MHz. 1 2000 Feb 13 Care and feeding of Minicircuits ZHL42 amplifiers Sam Jewell G4DDK 1 2000 Feb 15 YAMSHA: Yet Another Mode S Helical Antenna Martyn Kinder G0CZD 1 2000 Feb 18 Using the California Microwave 11-026700 Transmitter assembly on 3. It took 4hrs 20mins for the journey which included. Dimitar Spisarevski 3 office 708. I went to Rapid Electronics with G4FSG this morning. Odkaz na stránky. SG-Lab 1296Mhz Transverter. Remember that some op-amps are not sufficiently fast to amplify high fidelity audio. Russion Components for Amplifiers for Sale. The transmit side on 432MHz was used as the IF for an SG Labs 2400MHz transverter and then into an add-on power amplifier feeding about 10W into a small flat plate antenna. International Sales of Pete Manfre- WA2ODO Preamp line. A new project-page was added, describing a simple 12V to 24V DC/DC converter to drive a 24V coaxial relay from a 12/13V supply usually found in SHF transverters. 5W 23cm driver board kits are now back in stock! Kits are now available for a 70cm 3W driver designed for the G4DDK Iceni or simlar transverter. The 1 kW version is a bit delayed. However since then I made several successful tests so. The DX Shop - Antennas, Amplifiers and Accessories for the dedicated Radio Amateur. A ham could only hope to find a used Spectrum Analyzer for sale that still worked and had an affordable price tag. There is short description of my 23cm EME setup: First one is "old" setup is containing 1. , HB9CSU • PGA103 + ­ a 50­mW broadband amplifier by G4DDK and WA5VJB • Hamnet ATV relay for less than 50 euros by. 4 GHz Es'Hail-2 / AMSAT Phase 4. 1296 MHz BJT Low Noise Amplifier - WA6UAM. A week ago I was taking stock of my 432MHz amplifier collection. Multipole switch 5 ports sma connector. com - Barnett www. 16 June 2015: Harbach Electronics is proud to announce the new ES4L4-B Soft-Start/Soft-Key/Bias board from Electronic Specialties! This all-in-one board provides a soft-start, soft-key and user adjustable biasing for the Drake L-4B amplifier. Audio Refurbishers. com/eme1296. I started with a NE612 with 10MHz LO and 10 meg IF but now use Flex 1500 with filters and amp or a 6500 for 630M. I have a 115V transformer isolated supply at the dish. < mfa298 > Ugi: if you hang around there are a few people from around the Essex direction so they might be useful people to talk to and there might be the option of attending a launch when one happens. News and opinion from The Times & The Sunday Times. 3 GHz band plan for full details. Home of McIntosh Audio, Used Equipment Amplifiers, Preamps, Receivers, CD Players, and Speakers. G4DDK- A radio blog. department of housing tenant, Compensation discussion and analysis, Lascolite translucent fiberglass reinforced plastic, 05 2011 ssbb rev 2 col sample exam asq asq, The office of the administrative assistant , Florida designation of health care surrogate, General assembly of. 70MHz SPAC & NAC contests. NUPRIME IDA-8 INTEGRATED AMP, 'BEST for sale. pdf), Text File (. Essex Skills Night – June 2016 Kits and SMD: For the first time, Dave G4HUP (a regular at the Suffolk RED event), brought along along a selection of his kits (available from www. Cheap Antennas - LEO Satellites - Free download as PDF File (. These cover the four main amateur radio UHF bands of 70, 23, 13 and 9cm. The hydrogen signal goes into the horn > ULNA > 25 m RG213 coaxial cable > Mar-6 line amp > 1420 MHz interdigital bandpass filter > M1G mixer (+3dBm 135 MHz L. Speaking of the PGA Amp, I. Kenwood TS-2000 and FT-1000MP, as a back up RIG. 1296 MHz Very Low Noise Amplifier - G4DDK. A ham could only hope to find a used Spectrum Analyzer for sale that still worked and had an affordable price tag. McIntosh Wanted, Looking for the Following. 5GHz, along with numerous other test and measurement devices and off-air frequency standards. Thought it's about time I made use of it. The amplifier is also suitable as a driver amplifier for complex RF waveforms, and produces up to +21dBm output on 400MHz. Free Shipping by Amazon. The pre-amplifier is best suited to 23cm EME use, as it is rather wide band. This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. If you have a question you'd like answering here, please send it to info at uhf - satcom. com after you have read through the Q's and A's below. Add some amplifiers and decent antenna and it makes a nice system. What marketing strategies does G4ddk use? Get traffic statistics, SEO keyword opportunities, audience insights, and competitive analytics for G4ddk. Our new transverter's design (v 2. Welcome to Plinius Audio where quality reproduction of music is at the heart of everything we do. On July 19, 2011, Polaris Industries Inc. GMRT-2016, the Scottish Microwave Round Table, was held on Saturday 12th November at the Museum of Communication, Burntisland, organized by the Lothians Radio Society. Minimize noise, minimize bandwidth, maximize Amplifier information, act like gentlemen and enjoy! To see the collection of prior postings to the list, visit the Amps Archives. These were also on sale at Heelweg last Saturday. Welcome to G4BAO's Amateur Radio Website. As a useful offshoot of my business I have available a wide range of communications test equipment with signal generator capabilities up to 2. Anything that can get a useful starting power from the milliwatt level would be good without having to incur postage/customs costs from the states or Oz. Sam G4DDK for sponsorship 23cm pre amp. From time to time I used a modeling program, but more as a hint to guide my experiments and not as a main tool. They have 12V 12. Gus's shoe repair | leather repair shop | richmond, va, The six essential leadership attributes, Allowances for u. They have 12V 12. 772MHz generating a transmit signal on 47088 and use a WBFM Rx at 100MHz connected to the IF amplifier. 2db nf with about 30+ db gain Power over coax or externally. DL0SHF has for sale 300 W TWT for 3cm EME. dPMR is also used for the digital version of the popular European PMR446-handies as dPMR446, but it is also for sale with much broader specifications in a regular digital mobile radio version. It should be mounted at the top of the mast with only a short length of coaxial cable to the antenna. If your page or blog is not present in this blog and wants to guide its experience in Amateur Radio, send your web address or name of your page to "Ham Radio Websites World" by Email from the contact appears in the box at the bottom of this page. With a sequence controller this trouble can be avoided. 8m dish and 10W output power. See the RSGB 2. He uses the RTL-SDR as the receiving radio with an LNA (low noise amplifier) and a couple of line amps, a 93cm x 85cm offset satellite dish (potential dish for sale here, and here), and GNU Radio with the simple_ra application. - Splitters & Combiners, Filters, HF Amplifiers, Filters, Components, ATV, VHF Amplifiers Conrad - Alt hvad hjertet begærer indenfor elektronik Dansk Audio Teknik - Højtalere, delefiltre etc. When all inventory is sold KL7UW will cease handling PayPal sales for WA2ODO. PA K3 Amplifier The amplifier stage following the filter is a two stage circuit – a JFET stage terminates the filter and provides some gain, while a bipolar stage is used to provide further amplification. pdf), Text File (. Subject: Topic: State: Year: Issue: Title: Author: Page: Length: Transmitters: 440 MHZ: 1988: V1 #1: A MODULAR ATV TRANSMITTER: DJ4LB: 2: 9: Receivers/Down Converters. This is a general discussion forum for all 6M enthusiasts. This is an in-depth repair and modification video including the whole trouble shooting procedure. The power amplifier is a new development and provides a better IM3 at the same output power and almost the same efficiency. The design uses a low noise PHEMT amplifiers, high level +17dBm mixer for good strong signal handling and a cleaner transmit signal on the 23cm band. 8dBm at 28MHz from the XV port 2f was -24dBC, 3f was -20dBC. The 1 kW version is a bit delayed. G4DDK- A radio blog Full of really good stuff including a reprint of my PGA Amp. S-Band sky survey: xBr, Freq, pjm, Greg, Trango, Lem and #hearsat members. dPMR is also used for the digital version of the popular European PMR446-handies as dPMR446, but it is also for sale with much broader specifications in a regular digital mobile radio version. I have tried to demonstrate the effectiveness of the methods found in the course of numerous experiments. for more details. 432/28 MHZ TRANSVERTER BOARD *** TO BUY WITH CONFIDENCE, YOU ARE GETTING PAYPAL PROTECTION ! *** With this transverter board you can operate on the 70 cm band using any type of the HF radio that has the 10 meter band. I have a 115V transformer isolated supply at the dish. Carrying On The Practical Way - Practical Wireless - G3RJV When anyone says QRP they always relate to the Low Power side of our hobby and the GQRP Club founded by the Rev George Dobbs (G3RJV), over 40 years ago. And then, Jim calls CQ on 20 meters and W5IB answers. This is my new 23cms transverter which has been built into three separate parts consisting of a TX assembly which houses the power supply and all the switching/sequencing circuits, TX mixer, 5 pole band pass filter, amplifier and driver stage which produces 2 watts. Listening to High Fidelity reproduction of music can give you a lift or soothe and relax you depending on your needs. g4ddk Sam, has transverter kits for sale from. The DX Shop - Antennas, Amplifiers and Accessories for the dedicated Radio Amateur. 25 W Power Amplifier for 23 cm band. 7GHz, frequency counter up to 2. Anders is asking Eu 280 plus postage. Our staff works extensively to ensure availability and quick response during this Hurricane Season. News and opinion from The Times & The Sunday Times. 2) offers better performance and some new functions. barnettcrossbows. And then, Jim calls CQ on 20 meters and W5IB answers. RM Costruzioni Elettroniche S. < GW8RAK > Also got a G4DDK wide band preamp to build, but it's small. With all the latest Amateur Radio and Technical News. Matej, Petrzilka, OK1TEH. It has never been used and comes with a CT1DMK PSU kit. The Club will have its own stand at the Bring & Buy Sale. 432 AND ABOVE EME NEWS SEPTEMBER 2014 VOL 42 #8 EDITOR: AL KATZ, K2UYH; DEPT. Transverter for 23cm amateur radio band. This has been confirmed by several buyers. The transceiver has only really ever been used a couple of times a year to take part in 70 cms contests. Download spec's here. If your page or blog is not present in this blog and wants to guide its experience in Amateur Radio, send your web address or name of your page to "Ham Radio Websites World" by Email from the contact appears in the box at the bottom of this page. What marketing strategies does G4ddk use? Get traffic statistics, SEO keyword opportunities, audience insights, and competitive analytics for G4ddk. 1,966 results for ham radio amplifier G4DDK VLNA Kit. 7GHz, frequency counter up to 2. Weak signals that were not seen in the waterfall of "Spectran" they looked sharp with my home-made pre-amplifier made with pga103 +. Dimitar Spisarevski 3 office 708. 1 2000 Feb 13 Care and feeding of Minicircuits ZHL42 amplifiers Sam Jewell G4DDK 1 2000 Feb 15 YAMSHA: Yet Another Mode S Helical Antenna Martyn Kinder G0CZD 1 2000 Feb 18 Using the California Microwave 11-026700 Transmitter assembly on 3. The amplifier is also suitable as a driver amplifier for complex RF waveforms, and produces up to +21dBm output on 400MHz. All pre-owned items are rated and scored. I was given a Fujitsu 251-9735-010 6cm 5W amplifier by WA5VJB about 12 years ago for my Transverter but never got round to trying it out, this weekend was an opportunity. I have a 115V transformer isolated supply at the dish. I have re-designed a circuit board in this transceiver to enhance it's dependability. 4GHzDave Robinson WW2R G4FRE 1 2000 Feb 22 For Sale 7 Wanted Russ Stewart G4PBP 1 2000 Feb 23 Membership News. Have had some success with the g4ddk board but it is a bit on the fragile side. Subject: Topic: State: Year: Issue: Title: Author: Page: Length: Antennas: 1993: V6 #1: CHEAP AND DIRTY WEATHER COVER: 0: 1: Antennas: 1994: V7 #2: HAM SUES CONDO. DeWick Repairs. From HF, VHF, UHF, 50Mhz, 70Mhz and 144Mhz through to 432Mhz and 1296MHz the DX Shop supplies Linear Amplifiers, Antennas, Aerials, Masthead Preamplifiers, LNA, Coaxial cables and connectors, sequencers and amplifiers for your ham radio station. Anders is asking Eu 280 plus postage. GIS User reports on CHASE-II a CubeSat balloon launch by Captain Josh Neel KB3VTP. 70MHz SPAC & NAC contests. It should be mounted at the top of the mast with only a short length of coaxial cable to the antenna. Electronics - 500W, KW & 6M Ham Radio Amplifier Kits for Export. New! FA-VA5 600 MHz Antenna Analyzer Kit goes on sale! SDR-Kits is pleased to introduce a 600 MHz Antenna Analyzer Kit, designed to meet the requirements of all Radio Amateurs. 8m dish and 10W output power. Leggi il seguito. I,ll also have a few PGA and SPF Amp kits for sale. It is in two heavy duty cases for power supply and amplifier with water cooling by radiators and fans external to the amplifier case, including a 30 W driver module and a 1000 W module. Speaking of cool old books - there is an outfit called Lindsay Publications that puts out books on lost technology - stuff like how to build steam engines, lathes, tesla coils, and other weird science stuff. You can use a 28-MHz IF but 144 or 432 is better for easier filtering of image and harmonics. Initially I set the output power on the power meter to 5mW (7dBm). Multipole switch 5 ports sma connector. N/F by G4DDK VLNA. International Sales of Pete Manfre- WA2ODO Preamp line. G4JNT - part of south coast group. LNA: 50-4000mhz. You can submit an order for service online at www. com - Barnett www. The kit also performs well as a 500mW ultralinear amp for DATV. To do this one would tune the DRO Oscillator of one unit down to 11. A video talking about calling CQ. And then, Jim calls CQ on 20 meters and W5IB answers. 4 mm) power amplifier module using RF MOSFET technology. ONE need only refer to Zubarev'sl review paper on quantum statistical Green's functions to re- alize the importance of the concept of these functions not only in The thermodynamic. 5GHz, along with numerous other test and measurement devices and off-air frequency standards. At Microwave Update 2013, WA5VJB was selling LNA kits at a reasonable price – the kit consisted of a MMIC and a PC board. Trip to VK5MS to meet Sam Jewell G4DDK and look at a big dish On Thursday 20th August Roger VK3ADE and Ian VK3AXH set off from Ballarat at 10am to travel to a small dot on the South Australian map called Hatherleigh which is located some 16km west of Millicent in South Australia. Feed horn with N-connectors TX - female / RX - female. system with this pre-amplifier than with his original WD5AGO pre-amp. 4 GHz LNA - F5JGP. g4ddk Sam, has transverter kits for sale from. All day (Outside)10GHz ANTENNA GAIN MEASUREMENT by Sam Jewell G4DDK of The Microwave Society 1700 hours CONVENTION CLOSES DX DINNER 1900 for 1930 hours - meet in the BAR area from 1830 hours Breakfast on Sunday 7 April is between 0800-0900 hours. If the power amplifier (in a transmit-receive system) is switched too early, this may lead to damage or destruction of the input transistor in the LNA or converter. This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. I have a two-stage WD5AGO preamp with 0. 432 AND ABOVE EME NEWS SEPTEMBER 2014 VOL 42 #8 EDITOR: AL KATZ, K2UYH; DEPT. A Very Low Noise (pre)-Amplifier for the UHF 70cm to 9cm bands Sam Jewell, G4DDK Introduction This paper describes the current build (September 2013) of the G4DDK VLNA preamplifiers. A lot of signals I was receiving on 144MHz were quit. ONE need only refer to Zubarev'sl review paper on quantum statistical Green's functions to re- alize the importance of the concept of these functions not only in The thermodynamic. 4 GHz Es'Hail-2 / AMSAT Phase 4. Orders & Prices Share Following the sad passing of Dave G4HUP last year, Dave's family has agreed that the HupRF kits and Website is transferred to and managed by SDR-Kits going forward. Find great deals on eBay for d&a amplifier. 8m dish and 10W output power. 4GHzDave Robinson WW2R G4FRE 1 2000 Feb 22 For Sale 7 Wanted Russ Stewart G4PBP 1 2000 Feb 23 Membership News. Members willing to donate items of equipment etc for sale on the stand should contact any member of the committee prior to the event. GMRT-2016, the Scottish Microwave Round Table, was held on Saturday 12th November at the Museum of Communication, Burntisland, organized by the Lothians Radio Society. com or visit your local AT&T store. Det begyndte jo ellers så godt i maj med en uges rigtige sommertemperaturer, men så igen. A new project-page was added, describing a simple 12V to 24V DC/DC converter to drive a 24V coaxial relay from a 12/13V supply usually found in SHF transverters. Ultra low noise hf amplifier. The PGA-103 amplifier is ideal as a Very Low Noise high dynamic range amplifier for use between 50MHz and 1. 5 turn S-Band helical feed and a G4DDK vLNA were used. [G4DDK] Back to the Nacton Showing 1-1 of 1 messages taking a few for sale. From HF, VHF, UHF, 50Mhz, 70Mhz and 144Mhz through to 432Mhz and 1296MHz the DX Shop supplies Linear Amplifiers, Antennas, Aerials, Masthead Preamplifiers, LNA, Coaxial cables and connectors, sequencers and amplifiers for your ham radio station. Transverter for 23cm amateur radio band. If you are going to transmit to the repeater, or to another club member, then a T/R switch will be needed to turn off the VLNA and take it out of circuit. OK1TEH's activity on VHF bands from the home in 2012. A Very Low Noise (pre)-Amplifier for the UHF 70cm to 9cm bands Sam Jewell, G4DDK Introduction This paper describes the current build (September 2013) of the G4DDK VLNA preamplifiers. G4ddk Competitive Analysis, Marketing Mix and Traffic - Alexa. 70 MHz to 560 MHz Wideband High-Dynamic-Range LNA. The one I had used the most was the N7ART Audrey II 2x3CX800A7 amplifier I bought 20 years ago. RF Amplifier Basics. PA K3 Amplifier The amplifier stage following the filter is a two stage circuit - a JFET stage terminates the filter and provides some gain, while a bipolar stage is used to provide further amplification. Subject: Topic: State: Year: Issue: Title: Author: Page: Length: Transmitters: 440 MHZ: 1988: V1 #1: A MODULAR ATV TRANSMITTER: DJ4LB: 2: 9: Receivers/Down Converters. This RF low noise amplifier LNA is 50-4000MHz, NF = 0. With such an ethic, I have no doubt that your business will continue to flourish. Most amplifiers do even better reaching 280w p1db. For simplicity, choose an internally-compensated audio op-amp such as the LM833. G4JNT - part of south coast group. need a portable receiver to trace qrn on 6m, must have ssb capability. DUBUS 2m CW EME Activity Events. SG-Lab 1296Mhz Transverter. This is my new 23cms transverter which has been built into three separate parts consisting of a TX assembly which houses the power supply and all the switching/sequencing circuits, TX mixer, 5 pole band pass filter, amplifier and driver stage which produces 2 watts. (Unfortunately, one of the output devices died due to a brief short between +10V and -5V bias supply voltages. It is in two heavy duty cases for power supply and amplifier with water cooling by radiators and fans external to the amplifier case, including a 30 W driver module and a 1000 W module. Download spec's here. This amplifier has 20w of twin 6V6 power in high Class A biased AB and brings some of the most soulful, rich, near three-dimensional tone you have ever heard. department of housing tenant, Compensation discussion and analysis, Lascolite translucent fiberglass reinforced plastic, 05 2011 ssbb rev 2 col sample exam asq asq, The office of the administrative assistant , Florida designation of health care surrogate, General assembly of. A large number of SMD components are used to make the Transverter compact and predictable in performance. LNA: 50-4000mhz. A ham could only hope to find a used Spectrum Analyzer for sale that still worked and had an affordable price tag. Search Search. What marketing strategies does G4ddk use? Get traffic statistics, SEO keyword opportunities, audience insights, and competitive analytics for G4ddk. The Wirral & District Amateur Radio Club. The one I had used the most was the N7ART Audrey II 2x3CX800A7 amplifier I bought 20 years ago. Det begyndte jo ellers så godt i maj med en uges rigtige sommertemperaturer, men så igen. 10 with the two [NB2] Type A or Type B - The noise blanker. Home of McIntosh Audio, Used Equipment Amplifiers, Preamps, Receivers, CD Players, and Speakers. Power Module Module The Mitsubishi RA07H0608M is a small (30 x 10 x 5. Tak jsem pomohl Pavlovi OK1VEI aktivovat další dvě území pro diplom Flora a fauna. DFC 23 - NM-NM. Anything that can get a useful starting power from the milliwatt level would be good without having to incur postage/customs costs from the states or Oz. We work out the trending price by crunching the data on the product's sale price over the last 90 days. 5A (150W) PSUs in their clearance sale at £22. It is quite wonderful to find a company that actually cares whether their customers are getting what they need or not. need a portable receiver to trace qrn on 6m, must have ssb capability. G4ddk Competitive Analysis, Marketing Mix and Traffic - Alexa. On the first day of operation, the cooling system water pump failed in the station's OZ9CR amplifier at the peak of our EU window. This is an in-depth repair and modification video including the whole trouble shooting procedure. A PCB artwork is provided too. RF Power FET's POINTNINE D1010. (the "Company") issued a press release announcing the Company's second quarter financial results for the reporting period ended June 30, 2011. There is no equipment for 10 GHz ready to go, but there are modules and kits available which can be building blocks for a transverter. Have had some success with the g4ddk board but it is a bit on the fragile side. W1GHZ - OK1DFC Link power amplifier 2x3CX800A7-1,5kW. All day (Outside)10GHz ANTENNA GAIN MEASUREMENT by Sam Jewell G4DDK of The Microwave Society 1700 hours CONVENTION CLOSES DX DINNER 1900 for 1930 hours – meet in the BAR area from 1830 hours Breakfast on Sunday 7 April is between 0800-0900 hours. N/F by G4DDK VLNA. for more details. The power amplifier is a new development and provides a better IM3 at the same output power and almost the same efficiency. Contacts: str. Vintage Pro Tube amplifiers are the cornerstones of the Fender amplifier family. The transceiver has only really ever been used a couple of times a year to take part in 70 cms contests. I am using a DEMI xvtr 144/1296 and 6w driver amp to 60w first amp (all in the shack). LNA: 50-4000mhz. The frequencies listed below are actual 'off air' frequencies as received, and not guessed centre frequencies based on perceived Doppler shift. N/F by G4DDK VLNA. DB6NT makes great stuff. New! FA-VA5 600 MHz Antenna Analyzer Kit goes on sale! SDR-Kits is pleased to introduce a 600 MHz Antenna Analyzer Kit, designed to meet the requirements of all Radio Amateurs. 8m dish and Azimuth/Elevation mechanic My first QSO with PI9CAM was done at 8:40 UTC 10-07-2010 using 1. Danie ZS6DVZ and Magiel ZS6BML for helping Paul with the 6m tower. DL0SHF has for sale 300 W TWT for 3cm EME. Subject: Topic: State: Year: Issue: Title: Author: Page: Length: Antennas: 1993: V6 #1: CHEAP AND DIRTY WEATHER COVER: 0: 1: Antennas: 1994: V7 #2: HAM SUES CONDO. Almost 20 years ago I built my own 23cm transverter - DF8QK. 2db nf with about 30+ db gain Power over coax or externally. Edit? Computer Automation Technology Commercial Repeater Logic with extras. To do this one would tune the DRO Oscillator of one unit down to 11. That TDK Lambda SMPSU operates from 85 to 230V AC input and is therefore suitable for powering my 10GHz EME SSPA, out at the dish. Enter your search keyword. A week ago I was taking stock of my 432MHz amplifier collection. The first amps were sent to F1PYR and WB2BYP. RF Power FET's POINTNINE D1010. Ooh, and by the way, it oscillates uncontrollably in an FT480R as the PCB grounding is not good enough for the higher gain module. A Very Low Noise (pre)-Amplifier for the UHF 70cm to 9cm bands Sam Jewell, G4DDK Introduction This paper describes the current build (September 2013) of the G4DDK VLNA preamplifiers. com - Barnett www. 1 2000 Feb 13 Care and feeding of Minicircuits ZHL42 amplifiers Sam Jewell G4DDK 1 2000 Feb 15 YAMSHA: Yet Another Mode S Helical Antenna Martyn Kinder G0CZD 1 2000 Feb 18 Using the California Microwave 11-026700 Transmitter assembly on 3. The kit also performs well as a 500mW ultralinear amp for DATV. Thank you for participating in the activity contest over the years, see you on 2m CW EME during our monthly activity time periods (ATP's)!. I then hooked it up to the spectrum analyser At +7. HF Receive Loop Antenna Preamplifier. These were also on sale at Heelweg last Saturday.