At 07:55 PM 07/26/10, you wrote:
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'
> Allow me to show my age ...
> To me, the HT-220 is/was a Xtal Controlled Ht !!
Allow me to show my age...
The HT here is a VHF Engineering 2 Meter Portable
assembled from a kit... and it still works.
:-)
s.
ps: Surplus Motorola and GE Lunch Boxes don't count on
the bragging scale.
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
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 did
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.
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 Rep
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, that
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
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 Repeater-Builder@yaho
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" wrote:
>
>
> The holy grail for FM performance testi
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
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
Ross,
Yes, I used the WB2WHC voter board back in the 90's. It does not really go to
three ports easily, but you can use three boards to make a four channel voter.
It's like a pyramid, chan 1 and 2 gets voted by the first board, chan 3 and 4
by a second, then the output of each of those go into
FYI
GSA is selling some Mastr II stuff in Placerville, CA.
Eldorado National Forest.
I can send a link to anyone who is interested.
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
> port
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, Repeater
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
Subj
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
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 relay
Thanks for all the info.
Now I know what to put on the Test Equipment
page for that wattmeter.
Mike
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"
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