Hi
yes sort of, getting a bit confused my end. What I usualy do is using a
sig gen on the tx port put in the tx freq, terminate the ant port at 50 ohms
put my analyser on the rx port and see what level of tx freq iam getting
ie -80,-90 or whatever.
Steve
- Original Message -
From: Tim
Thanks for all the info.
Now I know what to put on the Test Equipment
page for that wattmeter.
Mike
The idle marker tone system was designed for wirelines
and adapted to microwave shots.
But there are ways around it. The simple method:
Have a local 1950 oscillator at the voter site. It can be done
with a 88mh toroid, a few resistors and caps, and a single
transistor.
Have a SPDT reed
All--
I have a nice 6' open rack here that I would like to give away---
South San Francisco bay area a bit North of San Jose---
Scott, N6NXI
Hi, Larry,
I'm sorry, but I gave last one way last week.
Gregory
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Larry Watkinson
Sent: Sunday, July 25, 2010 9:58 PM
To: Repeater-Builder@yahoogroups.com
If you have a GE VOTER use the COS from the Receiver to key a relay that will
apply the E/M voltages to the Voter. remote transmitter down, no voter action.
remote transmitter up Voter working. We used the tone for microwave hops and
telephone lines.
David
Jul 26, 2010 03:37:47 AM,
Good thoughts Milt, and I'll add a few
While not an easy thing to find I would suggest that you most likely
need some sort of a bandpass cavity on the receiver to protect from
the noise that gets past the heliax notches.
Remember that a notch duplexer only removes the notched
portion
FYI
GSA is selling some Mastr II stuff in Placerville, CA.
Eldorado National Forest.
I can send a link to anyone who is interested.
At 7/25/2010 15:54, you wrote:
Hi Jeff
yes I know -55db is I think around 399 microvolts which will flatten
any receiver,
I sure hope not; there are many signals coming down my antenna that are
that strong. In fact, my 440 repeater 13 miles away is at about that level
at my antenna connector.
my advice for what its worth is to use commerical grade antennas such as DB224
(VHF) AND DB 420 (UHF) or the Sinclair equalent. No other part of a repeater
system can affect both the rx and tx as much as a GOOD/BAD antenna. As to the
power levels, remember that the mobiles must be heard by the
Hi Jeff,
Thanks for the info. any idea about the complexity
of the 'summing' device? Can I do with a resistor combo,
then perhaps sub some from the actual generators' output?
Tim
--- In Repeater-Builder@yahoogroups.com, Jeff DePolo j...@... wrote:
The holy grail for FM performance
Sorry if you get a double post on this. The first one that was sent out didn't
go through on my end.
I have R2200A Maintenance Manual 6991069A76. Did they make a generic users
manual? There are a lot of stuff on here I am not familiar with.
Thanks,
Robert
KD4YDC
--- In
We have used the LDG RVS-8 voter with great success.
http://www.ldgelectronics.com/c/252/products/5/19/1
It is an 8 channel voter and does not need a 1950hz tone to operate, and is
within a ham's limited budget. In fact it works so well, one was installed for
a local sheriff's office. They
Hmm... My first post didn't make it through... Anyway..
We use, with great success, the LDG RVS-8 voter. It is an 8 channel voter,
does not need a 1950hz tone to function, and is within the average ham's budget:
http://www.ldgelectronics.com/c/252/products/5/19/1
It works so well in fact,
I soldered the f and D bead and sill wont work,got the PTT to work but i
still cant get any audio to transmit or recieve through the OPC-617 cable, i
even took the mic out if my david clark head set connected it straight to the
pin 4 and 8 and it still wont transmit my voice.
--- In
Tim,
I am not sure or do not remember what you have for a voter, but I have used the
Doug Hall voters in a COR mode with very good results.
I know there are some pretty good articles on adapting the Motorola Micor
series of voters from tone to COR. This is one of the projects on my to-do
list.
yes I know -55db is I think around 399 microvolts which will flatten
any receiver,
I sure hope not; there are many signals coming down my antenna that are
that strong. In fact, my 440 repeater 13 miles away is at about that level
at my antenna connector.
Reminds me of a test I
Hello group,
I have been playing with repeaters for quite some time and now I finally own a
real piece of test equipment. An HP 8924c, before almost dumping more money
into one more, one function, piece of equipment, a spectrum analyzer, I found
these 8924c's on eBay... Shopped for about 6
18 matches
Mail list logo
