Hi Steve, hope this helps..:
Pin
Function
1
Hook ( must be grounded in order to PTT )
2
Line ground
3
Encode tone input
4
Discriminator
5
Line audio ( Takeover switch must be in out position )
6
Speaker ground
7
13.6 vdc 1.0 amps max out
8
PTT
9
Speaker in
10Rx
audio
Thanks Steve,
I was about to send something equivalent,
i am not a pro in /"$%?*() ASCII art!!!
73 from Michel, VA2MAA ;-)
- Original Message -
From:
Steve
Grantham
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, April 14, 2004 12:08
PM
Subject: Re:
There are multiple inputs and outputs that can be
programed for that purposes
even there are for encode on/off ,decode on/off ,
you only have to look in the
software..
- Mensaje original -
De: Gregg
Lengling
Para: Repeater-Builder@yahoogroups.com
I think we're on two different wavelengths here. What
I am talking about is practical application, not
theoretical mumbo-jumbo.
OK, yes, I'm talking about the theoretical limitations. Your earlier post
said that even theoretical PM falls apart at low frequencies, and that's
where I
Hi
I have been studying the db stacked array and the
bayed array seems to use unbalanced dipoles as the
radiators .I have tried to find a close up view of a
single dipole so I can confirm my ideas.
If anyone has some good tech info on these antennas I
would appreciate the info.
It would make
This is a little off topic but may benefit others. I have a week Verizon
signal in my house. Not much better outside either. Can go around the
block and get better signal. Just two miles from the nearest tower.
Would like to put an antenna on my tower and connect it to one in the
house house
--- Jeff DePolo WN3A [EMAIL PROTECTED] wrote:
I guess this begs the question - at that point,
where you're doing
preemphasis and modulation via math versus analog
circuitry and synthesizing
the modulated carrier, do you call it PM or
preemphasized FM? I would argue
the latter since you
John Place wrote:
This is a little off topic but may benefit others. I have a week Verizon
signal in my house. Not much better outside either. Can go around the
block and get better signal. Just two miles from the nearest tower.
Would like to put an antenna on my tower and connect it to
There are not any baluns on these antennas. If I remember right, they use 75 ohm coax on each bay (odd multiples of quarter wave length) and 35 ohm coax on the feed (again odd multiples) to match the impedance to 50 ohms. This info was on the group a while back, somebody must still have it.
Would a close up pic of a DB304 work for your needs, or I have the DB420 there as well.
Mathew
bradley glen [EMAIL PROTECTED] wrote:
HiI have been studying the db stacked array and thebayed array seems to use unbalanced dipoles as theradiators .I have tried to find a close up view of asingle
I think you will find that the feed point is
50-Ohms whenfeeding one of these single unbalanceddipole
elements.The harness is for makingthe multiple elements on the
array look like one elementto thetransmission line. Look at
their (DB's) folded unipole antenna for low band. It's
Yep
folks, theseare commonly referred to as "Phasing Harnesses" just like we
use in the contest circles to stack multiple antennas and phase them so the feed
point impedance still "sees" 50 ohms at the design
frequency.
Ron Rogers-WB8ERB-
-Original Message-From: Steve Grantham
I have not kept up with other opinions but i
would suspect it is NOT practical or possible to
accomplish this. also with the failure of so many
paging companies in the u.s. a 900 mhz
transmitter can be had so cheaply that any
reengineering of other radios is silly.
even tha thams are buying purc
For everyone's Info:
http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-04-79A1.pdf
Yes, this means linking would be possible on 2M legally.
(above 144.500 MHz except 145.800-146.000)
Joe M.
_
Excerpts from NOTICE OF PROPOSED RULEMAKING AND ORDER
Adopted:
Hi Joe,
At some point in DSP, audio processing, synthesis, etc-all thrown into a bag and each manipulated withnumbers or programming, we sort of lose base with whatwe are doing. We could create AM, FM, PM, SSB, PSK,FSK, what have you.
And as amateurs and technical people, it'd be good if we
Hi Guys
Thanks for the notes -all noted and apppreciated.
A close up of any of the db open systems , especially
the close up of a single element would be greatly
appreciated.
I have done many searches on repeater antennas and it
seems like the vhf\uhf standard in the USA is decibel
.
In my
16 matches
Mail list logo
