After a few weeks got time for my beloved brewing works today. Just sharing the two items made. One is a base for Diamond CL-40 mobile antenna which is planned to be fixed on my roof with some adequate radials. The second is the return loss bridge for the PHSNA I built long past.

That is all for this weekend. I will test and let you know the results next time.

Cheers Friends,
  I am officially HAM Now. Got call sign VU3GDP from WPC, Ministry of Comm and IT. Its been a long, I was busy for office works. Finally the end. All works for Shri Jagannath Rath Yatra finished and I am back to HQ. Today morning got a call from VU2DPI to come on band. I never thought Dilip da will call me. Anyway, my antenna problem is still continuing with space and proper radials problems. For 40 Meter I got a Diamond CL-40 vertical mobile antenna, but without a good counterpoise it is nothing then a piece of long coil. Secondly, the radials for my 20 Meter band Inverted Vee was made up from some junk 0.2Sq mm copper wires which was unable to conduct more than 5 watt, resulting the SWR was high when I tried to operate QRO and got reports like 55 from VU2JAU and 57 from VU2DPI a month back. Anyway, after the wake up call, I went to market and got some 4 Sq mm copper wires. Dismantled the 20 Meter antenna first, searched on net for making a MW Radio Ferrite rod based 1:1 balun, and made it. All the materials are now in a PVC pipe enclosure with eye bolts and everything else. Power cut and my damaged 60W Soldering Iron took a lot time and it was almost 4PM. I tried to set up everything but Rain.. ahhh.. what a showering it was.. My BITX-20 is fit again with the IRF 510 replaced, but I forgot to bring the DDS VFO with me. Assmbled a half complete VFO to a PVC box and set everything right. Unfortunately power came at 7PM and it was difficult to erect the antenna. So thinking to do it tomorrow afternoon. Lets hope for the best with my new setup.
Posted the photos of both VFO and the balun setup below.. have a nice day ahead

 My beloved junk lab.. messy..

 

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PHSNA the device which will solve our many problem

 Hi Friends,
I am back with some good news. Yes, its late but a good friend Ron K0IDT, a US HAMs helped me to get the PCBs, and Prof Sunil VU2SWX from IIT, Bombay helped me with some sample AD8307, for which I sacrificed some time to wait and work with genuine components and PCB instead of DIYing in ugly way. Anyway, here is the project I was talking about in my last blog.
                                             "Poor Ham's Scalar Network Analyzer" or PHSNA in short.
  One day going through some search, I found a beautiful work based on a Arduino-Uno Dev Board. It was the PHSNA (https://groups.yahoo.com/neo/groups/PHSNA/info) project by N5IB and W5JH in addition to some work from W7ZOI/W7PUA on the power meter part.
 The PHSNA is simple, low-cost scalar network analyzer (SNA) employing an Arduino micro controller, an inexpensive AD9850/51 DDS module (Chinese in my case) , and an AD8307 RF power detector. There are hardly any components and wires if one wants to develop using bread board. All the codes are open source and schematics are also available in the files section of the yahoo group. All the critical components are written as of above, but being an Indian, I want to add some more critical components in the BOM, which can not be found here, However, We can skip them for the initial stages.
Some of them are
AD820 (Available in RS and elements14, but you need a TIN number to buy them). I ordered from Kitsnspares, and still waiting.
AD8307-- Again, the DX sources only. I was lucky to get some free gifts from VU2SWX.
Resistance for the Attenuator pads. (Almost Impossible), yes you can bring them in bulk from China, and can tell me, I will be happy to take some. I skipped the pads for initial tests till now.
Torroids, T37-6, Our good friend VU3GEK, Ganeshan from Coimbatore may be having this, but I have never seen it on his blog, however calculating and using the T-37-43 or T-50-6 may work, I have left the LPF section for now.
2N5109--- Yes, it may be available in some cities, but as 2N3866 is common, I have opted for that.
LM317L (TO92)--- Yes, dont get shocked, the T092 package is not available here in India, just bring 3 wires from the PCB's 317 terminal, connect to a LM317T the common TO220 package, no problem I have faced till now. just do not ground its Heatshink, its the output, so insulate is electrically.
NPO Capacitor- I cant get them, I can not take bulk from the sellers online, so simply used my MLCC Caps, which have so far proven me right.
Rest components are easily accessible either genuine or Clones like the Arduino and DDS module.
Finally the PCB arrived here on the day of festival of Colors, Holi. And I started the assembly. There are some builder alert for PCB in the yahoo group, I insist you must read them before starting soldering.
Right now, I have jumped the PCB's LPF and and Attenuator PADS, Still will go for test with arrival of the AD820 from KitsnSpares.
Till then will test the Arduino's communication with my Laptop and some DDS calibrations..
73
Some pics of the assembled board:

Season's Greetings,
 Being busy with job kept me long absent from hobby. Anyway, there were some problems arise in matching the crystal for a ladder filter for the BITX 40 from HFI 2014. The bandwidth we were getting after all compensation were only 900hz, which was far behind the 2.4Khz.
Meanwhile my impedance meter search took me to a new Scalar Network Analyzer, commonly known as Poor HAM's Scalar Network analyzer. All the info available on its yahoo group of PHSNA.
The device has many function to analyze any filter with the RF signal generator's ability as the limit. And to save time testing those crystals I am looking to make one of it for VU2AOR and one for myself. All the critical components except the AD8307 RF Detector is available with me. Professor Sunil Thomas from IIT,KGP was kind enough to offer me help in getting the missing components, its still on its way to reach me. So once the project is on its path, I will share the entire thing in details.
For now the info is this project will shut many T&M company's monopoly in market over our required expensive equipments.
Its based upon a Arduino UNO brain, can be used as a Power Detector, Z meter, SWR Meter, Antenna Analyzer and Network Analyzer.

So lets wait for next step in it..