A decent welding machine is less costly than a car bettery, its around 4500Rs. Don't expect decent build its made of AL wire and the core will be fixed in the most ugly fashion.But it works ! In chennai the best place is broadway just walk and look around. 73 Hari --- On Tue, 3/13/12, Prasad Agrahar <ad_prasad@yahoo.com> wrote:
|
Hi friends,
Perhaps Subham was looking for this :
http://forums.qrz.com/showthread.php?339016-For-The-SDR-Fans
73,
Yan XV4Y.
--- In HamBrewers@yahoogroups.com, Dev Ramaprabhu <vu2dev@...> wrote:
>
> Dear Subham,
>
> Greetings!
>
> We have made SDRs (RX only) for HF ,particularly for 40MTr band! Not for VHF!
>
> Of course you could always use a down converter from VHF to HF and that should be OKay!
> But I foresee two problems: Majority of the Drivers we have used donot support FM (Of course WINRAD does but the Bandwidth it needs is too high) and the second problem is our VHF band is quite wide in HF terms (2MHz) So a simple solution is not looking promising whereas a tuned (meaning stepped LO for the first converter) Down Converter with extra large SoundCard with a big Sampling rate should do the trick! Is it simple? Obviously not! But of course there may be other solutions as I am looking from the point of view of our SDR. All the details of our SDR (including artwork) are available on our Blog; http://hamrmipl.blogspot.com/ and may be you may find a simpler/better solution!
>
> Thanks and very best regards, dev
>
> --- On Wed, 3/21/12, shubham <shubhamforme@...> wrote:
>
>
> From: shubham <shubhamforme@...>
> Subject: [HamBrewers] need a simple 2m or 144mhz sdr circuit
> To: HamBrewers@yahoogroups.com
> Date: Wednesday, March 21, 2012, 3:37 PM
>
>
> hi
> i am trying to construct a sdr for 2m or 144mhz for my shack ,
> can any one give me any details about a simple circuit for 2m sdr??
> kindly help
> thanks..
> shubham
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
Dear Subham, Greetings! We have made SDRs (RX only) for HF ,particularly for 40MTr band! Not for VHF! Of course you could always use a down converter from VHF to HF and that should be OKay! But I foresee two problems: Majority of the Drivers we have used donot support FM (Of course WINRAD does but the Bandwidth it needs is too high) and the second problem is our VHF band is quite wide in HF terms (2MHz) So a simple solution is not looking promising whereas a tuned (meaning stepped LO for the first converter) Down Converter with extra large SoundCard with a big Sampling rate should do the trick! Is it simple? Obviously not! But of course there may be other solutions as I am looking from the point of view of our SDR. All the details of our SDR (including artwork) are available on our Blog; http://hamrmipl.blogspot.com/ and may be you may find a simpler/better solution! Thanks and very best regards, dev --- On Wed, 3/21/12, shubham <shubhamforme@yahoo.com> wrote:
|
hi
i am trying to construct a sdr receiver for 2m or 144mhz for my shack ,
can any one give me any details about a simple circuit for 2m sdr??
kindly help
thanks..
shubham
Hi,
Have you checked out KB9YIG's softrock ensemble vhf rx kit (www.kb9yig.com)
?
The build instructions can be found at
http://www.wb5rvz.com/sdr/ensemble_rx_ii_vhf/
Hope this helps,
rk
----- Original Message -----
From: "shubham" <shubhamforme@yahoo.com>
To: <HamBrewers@yahoogroups.com>
Sent: Wednesday, March 21, 2012 3:37 PM
Subject: [HamBrewers] need a simple 2m or 144mhz sdr circuit
> hi
> i am trying to construct a sdr for 2m or 144mhz for my shack ,
> can any one give me any details about a simple circuit for 2m sdr??
> kindly help
> thanks..
> shubham
>
>
