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TOPIC: Introduction
#189
Nando37
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Introduction 3 Years ago Karma: 0
Hello fellows, I am new with this group my call sign KC5FDW .
I am a retired Electronic Desgin Engineer now retired for about 10 years.

I am interested in seeing the small SSB transceiver to see if I order one,

Does any one have a schematic of the design to define a possible purchase ?.
Or where I can see it in the Web page ?.

Since I have designed equipement all my life from low power DC power supplies to to 60 GHZ, I am in the mode of buying what I would like to use,or at least to buy a kit and put it together.

Thanks

Nando
 
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#194
Nando37
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Re:Introduction 3 Years ago Karma: 0
Thanks a lot for the forwarded information.
Question: Was this design done around 1995 or so ?.

Can you tell me what type of spurious and other things to know about the design.

How Much current in RX and in TX mode ?.


Has, any one in this group, done any digital RX/TX conversion like the Tyloe mixer using a PC to "massage" the audio both Paths ?.

There are articles covering such experiments .

Regards

73 KC5FDW
 
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#193
vu3cav
Inspired by my Fundamental VU2MMP
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Gender: Male rajanimohan vu3cav vu3cav Location: New Delhi Originally from Begusarai (Bihar) Birthday: 09/05
Re:Introduction 3 Years ago Karma: 3
Hi Nando,

I have replied your query on your email id nando37@t........

Do feel free for further query.

73
Rajani Mohan (VU3CAV)
 
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#195
vu3cav
Inspired by my Fundamental VU2MMP
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Gender: Male rajanimohan vu3cav vu3cav Location: New Delhi Originally from Begusarai (Bihar) Birthday: 09/05
Re:Introduction 3 Years ago Karma: 3
Hi Nando,

Yes, the set was originally designed in 1995 and we have relaunched the kit, with slight modification, in memory of my fundamental VU2MMP - OM Prasad.

Rx takes around 200-300ma, while on TX it takes around 1-2 amp. depending on the output drawn from the final - IRF 530/1.

I never did it nor know of anyone doing digital RX/TX conversion on this kit



73
VU3CAV
 
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Newsflash

The Pakistan Amateur Radio Society (PARS) in association with Islamabad Jeep Club (IJC) and Pakistan Academy of Family Physicians (PAFP) has started relief activities by providing food, tents and medical support to the northern flood effected areas of Nowshera, Charsadda and central Sargodha districts.

The Cellular services are down and so is the landline. (Why Ham Radio in Disaster Management)Last week, the joint team carried out survey in the north and the centre of the country and to its dismay the situation isn’t promising. Restoration of cellular services and Landlines could take months.

In order to address the communication breakage PARS in collaboration with Islamabad Jeep Club has constituted two teams. One would cater for the northern cities linking Islamabad with Peshawar, Nowshera and Charsadda. The other would link cities in the centre and would include, Sargodha, Lahore and Faisalabad and Multan.

PARS already has a 2-meter repeater in place and a weak signal whereof can be heard in these areas, but would need cross band repeaters to further increase its strength and allow penetration into the remote areas. This would result in effective communication through handhelds rather than reliance on base stations where there is an issue with electricity.

We would therefore request International and National Ham Community to provide us the following equipment, if possible.

   1. Cross band repeater radios (any brand)
       x 3  (144-430 MHz)
   2. Coaxial Cable 100 ft x3 with connectors
   3. Power supplies x 3
   4. Hi gain dual band antennas x 3
   5. Handhelds (any brand vhf 2meter) x 5

The equipment could be new or used but should in workable condition.

Please email directly ap2nk or ap2mks for further clarification and information.

CONTACT
Nasir Khan AP2NK (President, PARS)
Add: H# 30 , Street 28 , Shalimar F-6/1 Islamabad
Phone:+92 (0)300 5230052 or +92 (0)51 2273755
Email: ap2nk.nasir@gmail.com

Muhammad Khalid Shoaib AP2MKS
Phone:+92 (0)333 5106595
Email: khalid.shoaib@gmail.com
Skypee: Voyager303

Asadullah Marwat AP2AUM
Phone:+92 (0)300 8529852
Email: ap2aum@gmail.com

Pakistan Amateur Radio Society
http://www.pakhams.com/