of how they are doing things (where they bring out the
tuning voltage on the DB25 or is it using the option DB15, etc.) and
what is required to fully modify a -26 to a -20.
Ed Yoho
W6YJ
than that, it appears only a few resistor and capacitors are
different from a -25 to comply with frequency mask compliance and these
would need to be changed anyway to make it a -20.
Ed Yoho
W6YJ
to be frequency warped
externally. As it isn't, the rest is pretty straight forward.
Ed Yoho
W6YJ
and
cannot find much info on it beyond USA only and used with QuasiSync
systems (Tait's version of simulcast).
Modifying a -25 to -20 is pretty straight forward, but I don't know what
is involved with the -26.
Ed Yoho
W6YJ
assume the voltage tuning pin needs to be tied to a stable
reference. The series II schematic shows the FM pin (VCXO adjust) tied
to a divider from +5V (not the most stable reference point).
Thanks,
Ed Yoho
W6YJ
Scott Zimmerman wrote:
I've had enough of this guy. He's gone.
You're all welcome.
Scott - List Co-Owner
Scott Zimmerman
Amateur Radio Call N3XCC
474 Barnett Road
Boswell, PA 15531
Thank you...
Ed Yoho
W6YJ
a termination on the side you are not tuning.
Ed Yoho
W6YJ
Communications Inc.
I.E. remove the N-way T and replace it with two Ts. From each T
off to their respective transmit antenna.
Don't understand the remounting statement though.
Ed Yoho
W6YJ
, you might want to look at:
http://sourceforge.net/apps/mediawiki/cqinet/index.php?title=Linkbox-url
http://groups.yahoo.com/group/thelinkbox/
It is both a Linux repeater control system and also VoIP linking.
Ed Yoho
W6YJ
..
Ed Yoho
W6YJ
/ construction cost to do correctly and quietly.
Ed Yoho
W6YJ
power supply is to get a small autotransformer to
boost the voltage back to 110VAC. Or you can make your own by wiring a
110VAC/24VAC transformer up as a boost autotransformer (secondary is
placed in series with the 85VAC hot side).
Ed Yoho
W6YJ
mean -44 volts at the battery).
If there is any possibility of losing opamp power while connected to the
-48 volts, you should also place a Schottky diode from the opamp -input
to ground (cathode to opamp and anode to ground).
Ed Yoho
W6YJ
/Q2003 over a little
bit so you can make contact with the base lead. Not very user friendly
to say the least.
Ed Yoho
W6YJ
. mic in
3. ptt
Can't say the ring is 2, but you can be sure by measuring the voltage on
pins 2 3. The audio in is AC coupled and does not have any bias
voltage on it. The PTT line is tied to +9V via a 10K pull up resistor.
Ed Yoho
W6YJ
Does anyone have either a manual or at least the Channel Designation
Table for the VT-3 and/or VR-3 low band MT-2 series radios?
Thanks,
Ed Yoho
W6YJ
Paul,
One test I have not noticed listed is if you've tried the Sinclair while
it was not attached to the tower (and a reasonable distance away from
anything that could affect it).
Ed Yoho
W6YJ
Paul Kelley N1BUG wrote:
There's nothing crazy about that idea Nate! I get creative thoughts
either.
Ed Yoho
W6YJ
(an evil repeater owner for more than forty years)
Jeff DePolo wrote:
How are you soldering the braid (or how are you removing the
goop prior
to soldering it)?
Ed Yoho
W6YJ
I use trichloro, but there are other solvents that would probably work too.
--- Jeff
Thanks
Ed Yoho
W6YJ
available. I bought some maybe 10 years ago after
searching hard to find a source. It wasn't cheap!
--- Jeff WN3A
Jeff,
How are you soldering the braid (or how are you removing the goop prior
to soldering it)?
Ed Yoho
W6YJ
motarolla_doctor wrote:
Ed Yoho ... wrote:
How are you soldering the braid (or how are you removing the goop prior
to soldering it)?
Ed Yoho
W6YJ
Acetone
Cool. Thanks..
Ed Yoho
W6YJ
No problem. You should find the 840 to be a very nice repeater (except
for the wide front end).
Ed Yoho
W6YJ
Adam Feuer wrote:
Thanks Ed!!
Adam N2ACF
Ed Yoho wrote:
Adam Feuer wrote:
Hi Ed,
Thanks for the information. The 840 is very attractive to me because I
see that it can
the 840.
You can go back into the file to change settings other than frequency if
needed. If you touch the frequencies, it will force them back to 450.000.
Ed Yoho
W6YJ
(part of the unit's design).
Ed Yoho
W6YJ
the internal repeat function or an external
controller via the line input, but this should be what you are looking for:
VR2001 is LINE SENSITIVITY
VR2002 is LINE MAX DEV
VR2003 is LINE OUT LEVEL
VR2004 is RPT MAX DEV
VR2005 is RPT SENSITIVITY
Ed Yoho
W6YJ
as a no connect. External tone in is on
DB25 pin 4 and the tone level is via VR2006.
Any chance it is wired up non-standard / reversed?
Ed Yoho
W6YJ
in) and then it goes through
Q2003-3 and Q2003-2 that at set up as low pass active filters.
This manual is dated 1994 and has E04101002(412S-CT) on the rear cover.
In this manual, VR2004 and VR2005 are in the path in both internal and
external mode.
Ed Yoho
W6YJ
ve2ckn
Gervais,
Search for either Mastr or MastrII (no 'E').
Ed Yoho
W6YJ
for a new
antenna with warranty. Most folks who purchase from either Talley or
Tessco have accounts with substantial discounts from list.
Ed Yoho
W6YJ
, it is trying to push the frequency
upwards from where it currently is operating unlocked.
Ed Yoho
W6YJ
(MHz) = M * 0.64 + A * 0.01
RX FREQ(MHz) = M * 0.64 + A * 0.01 + 45
You might want to try verifying what is in the EPROM and possibly
manually create a channel around 454 (your VCO's free running freq).
Also, be sure to power cycle the unit after changing channels.
Ed Yoho
W6YJ
ohms from the case of your TCXO to the bottom pins to locate
its ground pin.
Ed Yoho
W6YJ
pF trimmer that is the same size.
The missing pin would be pin 1 (no connect).
Wherever you have 5V is pin 14 and the far pin is ground. The pin in the
middle is 12.8MHz.
Ed Yoho
W6YJ
there.
Ed Yoho
W6YJ
,
they fail internally (turns, but does not vary the capacitance). If they
are the half turn style, verify the unlocked frequency is actually
shifting as expected when you adjust the trimmer. If you have a T855-20
RX, the VCO should be movable from around 390 MHz to 440 MHz.
Ed Yoho
W6YJ
you want to be frequency wise.
Set the exact RX frequency and re-adjust the VCO for 10V one last time.
Finally, adjust the helicals for best LO injection and sensitivity.
Ed Yoho
W6YJ
they are the ones you are looking for.
73,
Andreas - 5B8AP
Andeas,
Are these Series I (EPROM) or Series II (PC / EEPROM) manuals?
Ed Yoho
W6YJ
to see them.
Ed Yoho
W6YJ
cisfuk wrote:
hi, can i use 27c256 eproms? and are there any other manuals available
that are not on taits website also where can i find the pgm800win
software. thanks
Yahoo! Groups Links
Gmail - Kevin, Natalia, Stacey Rochelle wrote:
If you want I can scan my manuals for the series 1 Taits for 2mtrs.
You will just have to give me some time, have to take the wife to a
Russian weekend this weekend.
Regards
Kevin, ZL1KFM.
Kevin,
That would be great.
Thanks,
Ed Yoho
cisfuk wrote:
this is going to be a silly question to you lot but what is a TXO
module for Tait 800? thanks
Normally it would be TCXO or Temperature Compensated Crystal Oscillator.
X is shorthand for crystal.
On most T800s, the TCXO is 12.8MHz +/-2.5 ppm.
Ed Yoho
W6YJ
/
and look at the list of repeaters already on two meters.
You might have a better chance (and cheaper antennas duplexers) on
some of the less popular repeater bands (900 or 1200 comes to mind).
--
Dave Gomberg, San Francisco NE5EE gomberg1 at wcf dot com
Ed Yoho
W6YJ
/triax.asp?N=0sid=48867480942E17F;
Ed Yoho
W6YJ
, they are not
connected as in a 'normal' BNC.
Ed Yoho
W6YJ
(coming up on 40 years in the semiconductor test field - sigh, must be
getting old)
Larry,
The 'c' is missing in excerpt. Add the 'c' and it will work.
http://www.repeater-builder.com/motorola/r100/r100-programming-manual-excerpt.pdf
http://www.repeater-builder.com/motorola/r100/r100-programming-manual-exerpt.pdf
Ed Yoho
W6YJ
Hopefully whoever was connected to the RG-58 is no longer a tenant.
Ed Yoho
WA6RQD
is available in pdf format. I have not
found the series I in pdf. If it is a series I, let me know what section
you are having trouble with and I will try to copy that area and get it
to you.
Ed Yoho
WA6RQD
Trevor Cockayne (M0OML) wrote:
Hello ED,
It's series 1 but some kind person has sent me a schematic for it.
Trevor,
Good news. Hopefully it will be a simple fix.
Ed Yoho
WA6RQD
Ronny wrote:
Picture in group files
http://ph.groups.yahoo.com/group/Repeater-Builder/photos/view/e85b?b=4
If you know what it is and/or have the pinout/docs for it I would
appreciate an email back.
Thanks!
Ronny K4RJJ
IIRC, it is a Com-Spec TS-32.
Ed Yoho
WA6RQD
expect - a simple open area that you solder the three
center conductors together and then replace the side cover. We rebuilt a
couple of them from lo TX to hi TX a few years ago, but did not keep the
dimensions (oops).
Ed Yoho
WA6RQD
to be seen miles away. Wonder
what was doing it in their system?
--
Nate Duehr, WY0X
[EMAIL PROTECTED]
Likely mixing in their transmitter due to no circulator.
Ed Yoho
WA6RQD
normally open to relay 2 normally open
relay 2 normally closed to final output
relay 2 common to antenna filter assembly
This assumes the relays would be energized when in battery mode. A
little more drain on the battery, but 99% of the time the coils would
not need to be energized.
Ed Yoho
equivalent of an analog mode repeater?
Ed Yoho
WA6RQD
We do not address the issue of whether D-Star systems are repeaters. We do
claim that they fit the definition of an auxiliary station as defined in
Part 97.3 (a)(7) therefore may be operated in the 145.50-145.80 MHz segment.
Bob NO6B
that DStar repeaters
are not by definition a repeater (as part 97 would define a typical
analog mode repeater) and can be operated outside the defined repeater
sub bands as an auxiliary station while still performing the functional
equivalent of an analog mode repeater?
Ed Yoho
WA6RQD
in advance,
Don, W9SL
Yahoo! Groups Links
Don,
You might want to give RF Parts a call at: 800 737 2787
Ed Yoho
WA6RQD
Not Used
13Switched A+ 0.5A Max
14Remote Hook Switch (ground for PL RX)
15Internal Speaker Positive
16External Speaker Positive
Pins 15 to 16 are normally jumpered to enable the internal speaker
Ed Yoho
WA6RQD
8 for your COS.
Ed Yoho
WA6RQD
a 10K or so pull up resistor to +12V.
Ed Yoho
WA6RQD
The telephone country code is for Nigeria, so your guess looks right on.
Ed Yoho
WA6RQD
current is likely the problem.
Ed Yoho
WA6RQD
20KHz channels.
Ed Yoho
WA6RQD
lucky, but most folks end up with problems. Unless you feel
very lucky, 9913 and the LMR series of coaxes should be avoided in
duplex applications.
Ed Yoho
WA6RQD
) will be much easier
to work with.
The LDF4-50A is standard 1/2 hardline and would normally be used to get
from the duplexer to the antenna.
Ed Yoho
WA6RQD
time
out, forced execution digit if configured - or combination of these).
Ed Yoho
WA6RQD
[EMAIL PROTECTED] wrote:
Hi Guys,
Our design team is following this discussion with great interest
because it'll definitely influence what we offer in the future
regarding controlling multiple
. This method also allows all commands to always be
available to all ports. Each time the port specific pre access DTMF
sequence is received, the following DTMF digits are processed during
that specific transmission.
Ed Yoho
WA6RQD
Skip and Ken,
That is great news.
Not sure how I overlooked the prefixing on the210 when I looked before
(time to clean the glasses ).
Ed Yoho
WA6RQD
wd8chl wrote:
Ed Yoho wrote:
The basic difference is on systems with site prefixing as part of the
command structure, different inputs get different command requirements.
Using macros to simulate site prefixing is pretty inefficient. As an
example, a user wants to enter command 12345
wd8chl wrote:
Ed Yoho wrote:
Site prefixing (with supervisory lock down commands) is used by every
medium to large network I know of.
Having both control methods available allows the system management to
choose whichever method they prefer. Not having the ability for site
prefixing
. A full macro set per port/prefix could get
painful from a resource standpoint.
Ed Yoho
WA6RQD
for applications where it is
desired / implemented as part of the system structure.
Ed Yoho
WA6RQD
-Comm or the old Palomar Telecom controllers)?
This is a make or break for many system owners that have multiple sites
interconnected.
I have always been impressed with the S-COM products except for this
limitation on earlier products.
Ed Yoho
WA6RQD
Jim wrote:
Ed Yoho wrote:
Nate (or Bob if he's lurking),
Do you know if the software will accept site prefixing on a per port
basis (similar to Link-Comm or the old Palomar Telecom controllers)?
This is a make or break for many system owners that have multiple sites
interconnected.
I have
to an
external controller is pretty straight forward if you have a manual
(needed for alignment anyway) to properly configure the internal jumpers.
The T800s came in a Series I (EPROM programmable) and Series II
(internal micro-controller that is PC programmable).
Ed Yoho
WA6RQD
for 446.86 TX:
446.86 / 0.64 = 698.21875 (the integer portion 698 is the M code)
698 * 0.64 = 446.72
446.86 - 446.72 = 0.14
140 KHz / 10KHz = 14 (the A code is 14)
Hopefully that makes sense.
Ed Yoho
WA6RQD
will need to locate a manual for the T855 T856 as there are many
possible internal configurations possible due to multiple internal
jumpers. If anyone has the manuals in PDF form, I do not know of them.
Ed Yoho
WA6RQD
channel spacing, if they are series I you will need to use a hex editor
to generate your EPROM files as the factory software did not support 20
KHz (only 12.5 25 KHz).
Ed Yoho
WA6RQD
Michael Singewald N1PLH wrote:
First...Wow, you guys are FAST! I cannot believe how many responses
in 15 minutes! Thank you all very much.
The 147.225 has input 147.925 and the 146.925 has input 146.325.
(147.225 * 3) - (146.925 * 2) = 147.825
(146.925 * 3) - (147.225 * 2) = 146.325
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