dear friends,
i just completed my if board.didnt get enough time for a testing as i am quite busy with my studies.. hope i can update in some days.i am planning to setup a blog so that i can post my updates.i will inform about my developments.
About the query aroused by fellow friend,
i have obtained almost all parts..MC 3359 (FM IF) can be salvaged from old cordless phones(49Mhz type) along with 455 ceramic filter..quad coil can also be obtained from the same..
i got the DG Mosfet from farnell india..around Rs35 some 3yrs before..
i have PLL ics LMX2306(from farnell for Rs 170) ..
i will update later as i finish off the project
--- In HamBrewers@yahoogroups.com, "uniconganesh" <ganesan4u@...> wrote:
>
> Dear OM,
>
> RE: Project Status for 2M VHF
>
> 1)CIRCUIT DESIGN FINALIZED?
> 2)BOM FINALIZED?
> 3)COMPONENTS PURCHASED?
> 4)PROJECT ASSEMBLED AND TESTED?
>
> KINDLY TELL ABOUT THE PROJECT STATUS.
>
> intrested to do home brew in advanced smd HI-Q 2M/70CM RX?
>
> 73,
> N.Ganesan
>
>
>
> --- In HamBrewers@yahoogroups.com, "K Rajesh" <kc2kby@> wrote:
> >
> > Dear Prabakar, That one chip has eluded me. Can you please share the details
> > of your mod?
> >
> > 73's
> >
> > Rajesh K
> > KC2KBY/VU3RGK
> >
> > -----Original Message-----
> > From: HamBrewers@yahoogroups.com [mailto:HamBrewers@yahoogroups.com]On
> > Behalf Of prabakaran prabakar
> > Sent: Friday, February 11, 2011 8:56 PM
> > To: hambrewers@yahoogroups.com
> > Subject: RE: [HamBrewers] Re: 2M VHF
> >
> >
> >
> >
> > i am using modified CXA1019 FM Radio circuit from 2006 for 2m reception.
> >
> >
> > _____
> >
> > To: HamBrewers@yahoogroups.com
> > From: sambhu_ec@
> > Date: Fri, 11 Feb 2011 14:54:34 +0000
> > Subject: [HamBrewers] Re: 2M VHF
> >
> >
> > yes..there will be heavy drifting.i am planning to use a pll controlled with
> > a pic.. i have procured almost all the components needed for the RX,
> >
> > But the coils to be wound lacks information in the document also
> > Is there anyone in this group who has experience with the same kit
> > Does anybody has the winding details of coils in RECEIVER board..
> > thaks again Raj and prabhakaran for their replies
> > --- In HamBrewers@yahoogroups.com <mailto:HamBrewers@yahoogroups.com> ,
> > "Raj" <vu2zap@> wrote:
> > >
> > > Prabhakaran,
> > >
> > > One of the problem is that simple mods will end up with low volume and it
> > will pick up multiple stations due to >100Khz BW. We have change the filters
> > and increase audio gain then it will do a great job. OTOH, the oscillator
> > will drift a lot and it will be irritating to retune now and then!
> > >
> > > Welcome to the group!
> > >
> > > Cheers
> > > Raj vu2zap
> > >
> > > --- In HamBrewers@yahoogroups.com <mailto:HamBrewers@yahoogroups.com> ,
> > "prabakaran.D" <bcdxer@> wrote:
> > > >
> > > >
> > > > For 2M FM receiver alone, you can modify any available fm radio receiver
> > kit.
> > > > I am modified several of this kits for 2m reception.
> > > >
> > > >
> > > > --- In HamBrewers@yahoogroups.com <mailto:HamBrewers@yahoogroups.com> ,
> > "Raj" <vu2zap@> wrote:
> > > > >
> > > > > Please attach the PDF file so that we can see the project.
> > > > >
> > > > > --- In HamBrewers@yahoogroups.com <mailto:HamBrewers@yahoogroups.com>
> > , "sambhu" <sambhu_ec@> wrote:
> > > > > >
> > > > > > Hello Friends,
> > > > > >
> > > > > > I want to build a 2m receiver..I have decided to follow the
> > architecture of VU2IF 2m vhf transceiver. But over the internet i cant find
> > the RX coil data. Only the coils in the TX portion is described in the PDF
> > available in internet.
> > > > > >
> > > > > > if somebody has the winding details of coils in RX portion, then
> > kindly share with me
> > > > > >
> > > > > >
> > > > > > By the way i will explain a bit about my idea..
> > > > > > 1. RF amp using BF 988
> > > > > > 2. Mixer using the same DG MOSFET
> > > > > > 3. FM IF using MC3359
> > > > > > 4. A PLL oscillator designed around a PIC and LMX 2306 or ADF 4116
> > > > > > 5. AF amp TBA 810
> > > > > >
> > > > > > Waiting for your help,
> > > > > > Thanking in advance
> > > > > >
> > > > >
> > > >
> > >
> >
>
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