Charles, I agree. I was thinking more of base to mobile operation.
Just for fun, I ran some numbers in Radio Mobile with parameters from
a real system that I am familiar with on 2M. I varied antenna HAAT
and transmitter power to determine changes in coverage area and
radius. The numbers
Spacing looks fine on both posts here, but I have HTML turned off on
Yahoo.
Joe M.
Laryn Lohman wrote:
Ouch, the spacing between numbers disappeared :( I hope y'all can
figure it out. Stretch the numbers out to form three columns under
the headings.
Laryn K8TVZ
--- In
Hello,
I am looking for a copy of the ICOM RP-1220 service
manual.
If someone can help me out it would be appreciated.
I have an intermittent power output. It only keys up at 10 watts occasionally
and most the time power output is at 1.5 watts.
Can't seem to isolate the problemto a poor
Group,
I am looking for a repeater application that runs on the 68hc11
microprocessor. Can anyone advise further?
Thanks,
Howard, N3FEL
Bensalem, PA
USA
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Dear Sirs,
We are a Emergency Radio Amateur Club based in Istanbul...
We need urgently a repeater for our club...
The frq must be 145.787,5 -600 88.5 Ton.
These are the spec taht we need but a repeater for 2 meters will be enough for us..
Can you pls inform us about the availabilies and
Ouch, the spacing between numbers disappeared :( I hope y'all can
figure it out. Stretch the numbers out to form three columns under
the headings.
Laryn K8TVZ
--- In Repeater-Builder@yahoogroups.com, Laryn Lohman [EMAIL PROTECTED]
wrote:
Charles, I agree. I was thinking more of base to
Hi Guys
Can you help with the pin out of the 12v DC socket on the rear of
the test set
I am putting test set on a truck for the bush ASAP.
Cheers
Brett
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Hello ...
You mentioned in an earlier e-mail the model number C53MHB-3100BR
- I am looking at the manual, Motorola Part number 68P81005E75.
Matt wrote:
If it's possible to do this conversion and I end up doing it, this
repeater won't see that much usage compared to a lot of other
Hi Kevin,
I am installing a Comm Spec SS-32 encoder in a Micorrepeater. I am using a logic output from an S-Com 5Kcontroller to key the ground connection to the encoderwhenever the RX COR is active. I need to do this tobe able to link into another system.My problem is when ever the encoder
Use a series resister AND a 1 uF non polorized cap in series with the
PL tone going to the Micor. Try to use the same point in the Micor
that the factory used.
May be the way you are keying the encoder, the Micor exciter will
respond to DC shifts as a frequency shift.
Yahoo! Groups
There is a big yard sale on Sept 4 th and 5th,
Lots of Motorola sruff.. P200's NIB !!! VHF and UHF/charger! STX
spkr/mic, Expo rapid charger..
Portables, and lots of parts. SpectraTac Receivers. Zetron M 45
patch, VHF Stationmaster antennas,
Benifit for San Gabriel Valley USAR Team, (A
Hi guys .I am sorry i haven't returned any messages as my internet
email sever has stuffed up and i haven't received any messages for 2
days or more .it is just i checked up on the builder website to see
the messages i have missed.Thanks to all that replied .The db
comparrison is being asked
There are some very high quality computer
propagation predicting computer programs available that use USGS data maps.
However these are expensive and only the companies that are into coverage
predicting in a commercial way can afford them. But they are good.
The first paper on VHF and UHF
Thanks for your thoughts Bob. I have managed to minimize the problem by
doing as you suggested - I put a .1 uF cap and a 27K resistor is series
with the tone output of the SS-32. The frequency still drifts when the
tone is keyed and unkeyed, but now only about 50-60 Hz. I think that this
is
DANG! Thats a long walk from West Virginia!!! Big Grin
motarolla_doctor wrote:
There is a big yard sale on Sept 4 th and 5th,
Lots of Motorola sruff.. P200's NIB !!! VHF and UHF/charger! STX
spkr/mic, Expo rapid charger..
Portables, and lots of parts. SpectraTac Receivers. Zetron M 45
You could use my free path analysis tool, rfProfiler-Light, to
predict the path loss in various directions from your transmitter
site.
http://www.rfsoftware.com/rfpl/downloads.shtml
It is not as slick as the expensive programs, but what do you want
for free!
Joe, N2UF
--- In
Don't assume that antenna gain is the only thing that
effects range. Antenna height, size and length of
feedline, quality of antenna and how it is mounted and
duplexer quality and tuning all effect range as well
as transmitter power and overall receiver sensitivity.
High RF enviroments can also
On Mon, 30 Aug 2004 08:11:25 -0500, Bryon Jeffers K0BSJ wrote:
I attempted to get the binary info out of my U30
and found it was blank.
Seems I'm having the same problem here as well
Bryon. Does the controller boot normally with
that eeprom in place?
I have verified that the eprom
At 09:03 AM 8/30/2004, Joe D wrote:
You could use my free path analysis tool, rfProfiler-Light, to
predict the path loss in various directions from your transmitter
site.
http://www.rfsoftware.com/rfpl/downloads.shtml
It is not as slick as the expensive programs, but what do you want
for free!
How does it work?
Is it like CETs as in looking down and seeing a probable footprint?
Ed - kb8qeu
Tony King - W4ZT wrote:
At 09:03 AM 8/30/2004, Joe D wrote:
You could use my free path analysis tool, rfProfiler-Light, to
predict the path loss in various directions from your transmitter
Don't forget-Motrac and Micor cards are different! If you have Micor
cards, you can, with some patience and a good soldering iron, re-wire it
to work on the Motrac, but they are not pin-compatible. 'Course if you
have Motrac cards, then that's moot ;C}
Matt wrote:
Thanks for the info. I
There is radio mobile http://www.cplus.org/rmw/english1.html and there is a
yahoo group dedicated to it's support and use. However you will be using
rfprofiler light out of the box much easier. INMO.
doug
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system
You specify a location using longitude/latitude. Then you define a
path either with another point (long/lat) or with a range and bearing
from the starting point.
The program creates a terrain profile between the two points and
then, using the Longley-Rice iterative terrain model, calculates
Yes the controller boots fine and functions as it should...
Very strange the I see the 6264 blank as you do.
Maybe someone else will have some input on this?
Bryon K0BSJ
At 10:11 AM 8/30/2004, you wrote:
On Mon, 30 Aug 2004 08:11:25 -0500, Bryon Jeffers K0BSJ wrote:
I attempted to get
Hey folks,
A 6264 is an 8K X 8 CMOS Static RAM..when you unplug it, it loses all data.
The 2864 is an 8K X 8 CMOS EEPROM...does not lose data when unplugged.
They are completely different
Ron Rogers
WW8RR
(previously WB8ERB)
-Original Message-
From: Bryon Jeffers
PLUGINS AVAILABLE
Found after Garage Sale ( you never know whats on these shelves...even we don't know.)
Plugin for Cush CE-3-4-5-6 $$ ea $$
1 Model 302 FM Deviation Meter $100
2 Model 304 25-50 mhz hisens 100
3 Model 305 145-175 mhz Hisens 100
1 Model 305B 145-175 mhz hisens100
buy 2 save
Tedd:
I have not been following this thread so I have no idea of the whole story
here. I was simply explaining the difference between the 6264 and the 2864.
But, many years ago someone made a low profile socket for the 6216 and 6264
chips that had a built-in battery and blocking diode. To give
Hi, all. I have a mitrek that I have duplexed and for some reason it keeps
blowing RX elements. I compared it to others that I have here, and the
voltages on pins 2 and 3 are close, but not on. What are the tolerances of
the elements for the voltages, and has anyone else lost RX elements like
On Mon, 30 Aug 2004 12:38:08 -0400, Rogers, Ron wrote:
A 6264 is an 8K X 8 CMOS Static RAM..when you unplug it, it loses all data.
The 2864 is an 8K X 8 CMOS EEPROM...does not lose data when unplugged.
Hi Ron:
Well that would make sense! My only question arises
is how can the base data
I have a copy of the manual coming that I will forward to you when I
get it. I need your help on getting this thing programmed. I
purchased the polaris #9 cable and I have the Mot. Field Programming
software, but I keep getting an error that Device not ready when I
try to read the data. Any
Sorry, the last post was mistakenly sent to the list. I realize it is
too specific for general conversation. Won't happen again.
Ryan
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Someone correct me if I am wrong here - I haven't worked on a
Motrac repeater in a very long time -
Station Logic Module - the diode that connects to pin 3 (anode
connects to pin 3) is the Receiver Mute circuit - lifting one end
of that diode should leave the receiver unmuted during
At 8/29/2004 12:07 PM, you wrote:
Actually, the old standard was 6 db per S unit., but then there really
never has been a real standard for S units that anyone has followed.
Al,
K9SI
I was once told that Collins radio had standardized S9 to be 50 µV. That
would put S1 at 0.20 µV.
The
You are correct the standard is 50 µV for a S9 indication, and you are also
right most ham rigs are way, way, way off. Except for those we build
ourselves. My HF rig shows exactly S9 for 50 µV. But that is the only
thing nowadays that could be considered standard. The S meter is run off
the
Bob, I have not run that test - but I can if you need more info
on the subject. I have three HF radios and numerous VHF/UHF radios
here.
Neil - WA6KLA
BTW, found your picture yesterday ... ;)
http://www.tasma.org/nl0407.pdf
Bob Dengler wrote:
At 8/29/2004 12:07 PM,
That's so they 'receive better' than the competition. ;-
Joe M.
Bob Dengler wrote:
The S-meters on most of my VHF/UHF ham gear seem to hit max.
indication around 10 µV.
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