Re: [digitalradio] The cost of digital mode interfaces

2010-03-09 Thread J. Moen
I've had nothing but good luck with the Rascal.  Used it for about 7 years.  
The newer ones now support PTT over a USB cable. 

Some of the connectors, particularly radio connectors, can be difficult to 
solder up, so the radio cable for your radio included with the Rascal is very 
nice.

Support has been excellent, in my case.  I do suspect that negative emails to 
Buck result in negative emails back. I've been careful to research my question 
first, send a succinct email, and I've gotten quick and polite responses back 
from Buck.

For those who choose not to homebrew their own soundcare interface, I would 
definitely recommend the Rascal.  The current price of the Rascal that supports 
either serial or USB PTT is about US $80.
http://www.buxcomm.com/catalog/index.php?main_page=indexcPath=2

  Jim - K6JM

  - Original Message - 
  From: David Struebel 
  To: digitalradio@yahoogroups.com 
  Sent: Saturday, March 06, 2010 7:21 AM
  Subject: Re: [digitalradio] The cost of digital mode interfaces




  A lot of hams have had problems with the RASCAL and the poor support and 
commications from the vendor of this product...See Eham reviews.
  http://www.eham.net/reviews/detail/1384

  I use and reccomend the Donner interface here with no issues and they are 
only $40... they come with all the connections for your specific radio and I 
think it also provides isolation on both the receive and transmit audio lines.
  http://home.att.net/~n8st/DDI-index.html

  Review
  http://www.eham.net/reviews/detail/2073

  73 Dave WB2FTX
  -- Original Message - 
From: Ralph Mowery 
To: digitalradio@yahoogroups.com 
Sent: Saturday, March 06, 2010 10:03 AM
Subject: Re: [digitalradio] The cost of digital mode interfaces


  
The basic sound card interface has never been very high.  Look for one 
called Rascal.  Here is one link to where to get them.

http://www.packetradio.com/

I don't recall the price from years ago, but it was under $ 50 then.
The kit was even less.  Almost just the cost of the parts if bought in 
single lots.

 

- Original Message 
From: Andy obrien k3uka...@gmail.com
To: digitalradio digitalradio@yahoogroups.com
Sent: Sat, March 6, 2010 8:34:05 AM
Subject: [digitalradio] The cost of digital mode interfaces

I was helping a ham get set-up for digital modes recently and turned
to the issue of interfaces for digital modes.  I researched the price
for a Rigblaster Pro and was shocked that they sell for $299.  My
friend settled for another interface  that cost $69, new.  I was
wondering about interfaces and wondering about whether the era of high
priced interfaces might be coming to an end.  I'm not talking about
the ones that have extra features like electronic CW keying, high end
soundcards , etc etc.  I'm thinking that a device that has connectors,
isolation circuits, pots, and a good solid enclosure, should be in the
under $100 range.  I know you can build your own for $20 or so,  It
is nice to see that many low price options exist nowadays.
Andy K3UK









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02:39:00


  

Re: [digitalradio] The cost of digital mode interfaces

2010-03-06 Thread Ralph Mowery
The basic sound card interface has never been very high.  Look for one called 
Rascal.  Here is one link to where to get them.

http://www.packetradio.com/

I don't recall the price from years ago, but it was under $ 50 then.
The kit was even less.  Almost just the cost of the parts if bought in single 
lots.




 


- Original Message 
From: Andy obrien k3uka...@gmail.com
To: digitalradio digitalradio@yahoogroups.com
Sent: Sat, March 6, 2010 8:34:05 AM
Subject: [digitalradio] The cost of digital mode interfaces

I was helping a ham get set-up for digital modes recently and turned
to the issue of interfaces for digital modes.  I researched the price
for a Rigblaster Pro and was shocked that they sell for $299.  My
friend settled for another interface  that cost $69, new.  I was
wondering about interfaces and wondering about whether the era of high
priced interfaces might be coming to an end.  I'm not talking about
the ones that have extra features like electronic CW keying, high end
soundcards , etc etc.  I'm thinking that a device that has connectors,
isolation circuits, pots, and a good solid enclosure, should be in the
under $100 range.  I know you can build your own for $20 or so,  It
is nice to see that many low price options exist nowadays.
Andy K3UK


  


Re: [digitalradio] The cost of digital mode interfaces

2010-03-06 Thread David Struebel
A lot of hams have had problems with the RASCAL and the poor support and 
commications from the vendor of this product...See Eham reviews.
http://www.eham.net/reviews/detail/1384

I use and reccomend the Donner interface here with no issues and they are only 
$40... they come with all the connections for your specific radio and I think 
it also provides isolation on both the receive and transmit audio lines.
http://home.att.net/~n8st/DDI-index.html

Review
http://www.eham.net/reviews/detail/2073

73 Dave WB2FTX
-- Original Message - 
  From: Ralph Mowery 
  To: digitalradio@yahoogroups.com 
  Sent: Saturday, March 06, 2010 10:03 AM
  Subject: Re: [digitalradio] The cost of digital mode interfaces



  The basic sound card interface has never been very high.  Look for one called 
Rascal.  Here is one link to where to get them.

  http://www.packetradio.com/

  I don't recall the price from years ago, but it was under $ 50 then.
  The kit was even less.  Almost just the cost of the parts if bought in single 
lots.

   

  - Original Message 
  From: Andy obrien k3uka...@gmail.com
  To: digitalradio digitalradio@yahoogroups.com
  Sent: Sat, March 6, 2010 8:34:05 AM
  Subject: [digitalradio] The cost of digital mode interfaces

  I was helping a ham get set-up for digital modes recently and turned
  to the issue of interfaces for digital modes.  I researched the price
  for a Rigblaster Pro and was shocked that they sell for $299.  My
  friend settled for another interface  that cost $69, new.  I was
  wondering about interfaces and wondering about whether the era of high
  priced interfaces might be coming to an end.  I'm not talking about
  the ones that have extra features like electronic CW keying, high end
  soundcards , etc etc.  I'm thinking that a device that has connectors,
  isolation circuits, pots, and a good solid enclosure, should be in the
  under $100 range.  I know you can build your own for $20 or so,  It
  is nice to see that many low price options exist nowadays.
  Andy K3UK



  


--



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  Checked by AVG - www.avg.com 
  Version: 9.0.733 / Virus Database: 271.1.1/2726 - Release Date: 03/06/10 
02:39:00


Re: [digitalradio] The cost of digital mode interfaces

2010-03-06 Thread Jose A. Amador
El 06/03/2010 8:34, Andy obrien escribió:
 I was helping a ham get set-up for digital modes recently and turned
 to the issue of interfaces for digital modes.  I researched the price
 for a Rigblaster Pro and was shocked that they sell for $299.  My
 friend settled for another interface  that cost $69, new.  I was
 wondering about interfaces and wondering about whether the era of high
 priced interfaces might be coming to an end.  I'm not talking about
 the ones that have extra features like electronic CW keying, high end
 soundcards , etc etc.  I'm thinking that a device that has connectors,
 isolation circuits, pots, and a good solid enclosure, should be in the
 under $100 range.  I know you can build your own for $20 or so,   It
 is nice to see that many low price options exist nowadays.
 Andy K3UK


Mine is built using scrounged components, mostly.

1) A good quality japanese professional audio 10 k : 600 ohms 
transformer. Connected as step down, it doubles as an attenuator. Loaded 
with a 600 ohms resistor in the secondary.
2) Several 1:1 transformers. The last one I am using is ferrite pot core 
recovered from a dead modem, loaded with 1200 ohms and 2.2 nF in series 
gives insignificant square wave ringing on the edges when tested with 
audio generator / oscilloscope.
3) A 4N26 optocoupler with a red LED is series and a 2.2 k resistor. 
Also has a reverse bias protection shunt diode (1N4007 that was at hand) 
over the LED + optocoupler diode string.

All  contained in a small plastic box, from a discarded battery charger. 
I only paid for the new all metal stereo miniplugs that go to the PC 
soundcard. In use for at least a couple of years already.

73,

Jose, CO2JA