Thursday, June 2, 2011

Re: [HamBrewers] 144 - 146 Mhz (2M) Rx thoughts

 

Hi

(Medium Complexity Level)
See the highlighted (in bold) section in the below mail which contains a challenging project with a unique constraint.

I have read about homebrewing contest conducted by ARRL on similar lines which was published in one of the recent QST's

(Low Complexity Level) A crystal radio is also an interesting challenge. Infact, Vittal, vu2vit wanted a crystal radio homebrewing contest to be conducted which can be evaluated during the Mahabalipuram meet. We plan to have one during next years

(High Complexity Level) : Try a HF General Coverage SDR RX. A followup project can be a VHF / UHF downconverter. Tonnes of designs/kits available and perhaps one of the hottest and most interesting development areas. I am trying to split it into multiple projects which BE ECE IITM guys can takeup as their final year projects.

Aravind
vu2abs



-------- Original Message --------
Subject:     [ARSICOM] Contests This Weekend
Date:     Thu, 2 Jun 2011 09:23:17 +0600
From:     ganeshbrhills <ganesh@watapi.com>
Reply-To:     ARSICOM@yahoogroups.com
To:     ARSI <arsicom@yahoogroups.com>
 
SEANET Contest: 1200Z, Jun 4 to 1200Z, Jun 5
   Mode: CW, Phone, RTTY
   Bands: 80, 40, 20, 15, 10m
   Exchange: RS(T) + Serial No.
   Submit logs by: July 31, 2011
   E-mail logs to: nidam68[at]hotmail[dot]com
   Mail logs to: SEANET CONTEST 2011
                 c/o BDARA
                 P.O. Box 73
                 Gadong
                 Bandar Seri Begawan BE3978
                 Brunei Darussalam
   Find rules at: http://seanet2011.com/contest.htm
 
FYI: The 39th SEANET convention is being held in BRUNEI DARUSSALAM between
November 17 - 21 this year.  Visit http://seanet2011.com/  for full info.
10-10 Int. Open Season PSK Contest: 0000Z, Jun 4 to 2400Z, Jun 5
   Mode: PSK31
   Bands: 10m Only
   Submit logs by: June 20, 2011
   E-mail logs to: tentencontest[at]roadrunner[dot]com
   Mail logs to: Dan Morris, KZ3T
                 131 Valencia Lane
                 Statsville, NC 28625
                 USA
   Find rules at: http://www.ten-ten.org/oseason/oseason.html
DigiFest: 0400Z-1200Z, Jun 4 and 2000Z, Jun 4 to 0400Z, Jun 5 and
1200Z-2000Z, Jun 5
   Mode: RTTY75, BPSK63, MFSK16, HELLSCHREIBER, OLIVIA
   Bands: 80, 40, 20, 15, 10m
   Exchange: RST + 4-character grid square
   Submit logs by: June 12, 2011
   E-mail logs to: digifest_robot[at]mixw[dot]net
   Upload log at: http://mixw.net/misc/DigiFest/digifest_log.php
   Mail logs to: (none)
   Find rules at: http://www.mixw.net/misc/DigiFest/rulese2011.html
 
We have heard about, and participated in various contests but this one is unique -
that's why I am including this in the list for this weekend!
 
Note the conditions for participating!  How many of us can even THINK of
participating?  Hi
 
QRP Minimal Art Session: 1600Z-2200Z, Jun 2
   Mode: CW
   Bands: 80, 40m
   Classes: A - TR+RX or TRX consisting of not more than 100 components
               B - TX consisting of not more than 50 components, RX as you like
               C - TR+RX or TRX consisting of nor more than 100
                    components, max 1 integrated circuit
   Max power: 5 watts
   Exchange: RST + "/" + class + number of components
   Score Calculation: (see rules)
   Submit logs by: June 16, 2011
   E-mail logs to: mas[at]qrpcc[dot]de
   Mail logs to: Peter Haensel, DL6CGC
                 Hoetenslebener Str. 15, Barneberg
                 D-39393 Hoetensleben
                 Germany
   Find rules at: http://www.qrpcc.de/contestrules/mas/qrpmasr-e.html

2011-06-02
Ganesh
B.R.HILLSU


On 6/1/2011 11:23 PM, rahul srivastava wrote:
Great Raj,
 
For those interested the chip has some very interesting applications. To start with with one of this single chip you can homebrew a complete HF SSB rig, but now if that you are a true Hambrewer...!!!
 
73's
 
Rahul VU3WJM
 


--- On Wed, 1/6/11, Raj <vu2zap@gmail.com> wrote:

From: Raj <vu2zap@gmail.com>
Subject: Re: [HamBrewers] 144 - 146 Mhz (2M) Rx thoughts [2 Attachments]
To: HamBrewers@yahoogroups.com
Date: Wednesday, 1 June, 2011, 9:51 AM

 
Some data sheets attached.

At 01-06-2011, you wrote:
Hi! Raj,
 
MC13135 and its earlier variant MC3362 is still available at Delhi if anyone interested. Lately I stopped going in for complete discreet ones cause found it easier modify surplus items, but that barely scrathes the itch of a totaly homebrewed project.
 
73's
 
Rahul VU3WJM

--- On Wed, 1/6/11, Raj <vu2zap@gmail.com> wrote:

From: Raj <vu2zap@gmail.com>

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