RP70U Freq Range=450-470MHz
RX Xtal=(RX Freq+21.4)/9
TX Xtal=TX Freq/27
Hope this helps!
Rich / N1LTL
--- In Repeater-Builder@yahoogroups.com, djwillienj
[EMAIL PROTECTED] wrote:
Does anyone have any information on the style and frequency range
of
the xtals for this unit? Thanks!
Rather than having the expense of landlines for the voter system, I want to
use receivers that is on 146.325 receive and have them transmit back to the
repeater via 902 MHZ, at least that is the way it was explained to me. I
have very little knowledge of voter systems, but am wanting to learn,
If it's the 902Mhz transmitter, think of it as separate functions.
The receivers, output goes to the voter. The output of the voter as
such, can be treated as if it was a single receiver output to be
interfaced with the transmitter/s. (are you going to be simulcasting
on 902 mhz ?).
Audio quality
I think I see what you are wanting to do with this system. Main tx of
the repeater is centrally located and at a good location. Main rx
could be at the same location or some other location. Multiple remote
rx at important locations to fill in holes where mobiles and ht's are
having difficulty
Greetings:
Would any of you have(2)Split Stator- Piston Capacitors
for a Motorola (Compa-Station) VHF Repeater I have. Motorola calls
forMANUFACTURER ID: JFD -- Part Number:VCJ2593 (Cap. =
4.2 to 15pf).
Now, if you don't have the individual capacitors we could use
the complete Motorola
At 05:34 PM 5/3/04 -0500, you wrote:
Ok, so then what about the transmitters, or is it the transmitters that have
to be equal? That is the part that I am missing, because the transmitted
audio into the voter comes in on 146 Mhz, and exits through a transmitter on
902 Mhz.
Mathew
First, as
Exactly, so if my thinking is right then, I would need two receivers and one
transmitter for each site that I put up, if I understand this right. I was
told that the 902 Mhz band was ok to use as remote links, I hope that was
right. So then each site would have to have some type of controller to
Mathew--
You seem to have the gist of things.
Yes, each remote receive site is a cross-band mini-repeater
complete with controller. Each remote site has a receiver which
listens on the main repeater's 2 meter input frequency and
retransmits the signal back to the main site on 222, 440, 902
Hi,
I do not recall seeing a "commandment" saying that
the existing white coax coming from the antenna relay to the receiver and to the
transmitter should definitely be replaced with something better.
Is it double shielded cable? I realize that
in its first life the Mitrek mobiles were
Hi
Ok skipp that would be great.
The versions I have been trying are from bottom to
top: 1/4 ,1/2 times 4,1/4 coax , 1/4 freespace
element.
Regards
Brad
--- skipp025 [EMAIL PROTECTED] wrote:
OK, but I'm not sure if the first element is the
top or the bottom. The more popular coaxail types
TX -
RX Isolation in mobiles converted to repeaters can sometime be a problem, so
anything you can do (like changing the stock coax to a mini-hard line) is going
to likely be a plus, especially at higher power levels.
Rob K7EI
-Original Message-From: Bruce Harvey
we have tld6681 transmitter $25 or you can have
the entire base station less power supplu
(destroyed) for $40 + shipping less cabinet.
can ship it ups tomorrow
mdm ted
--- [EMAIL PROTECTED] wrote:
Greetings:
Would any of you have (2) Split Stator - Piston
Capacitors for a Motorola
I hope I'm not asking for something that's
already
been discussed, but can any of u experts
recommend some good references on cavity design
complete with formulas and hopefully some
explanations and examples? I don't mind a little
work but I've not had much luck in the past
finding the info on
There might be a link out of the Repeater Builder
web pages and some information at the RB Website.
The Seits Group has some excellent information at:
http://www.seits.org/duplexer/duplexer.htm
cheers
skipp
www.radiowrench.com/siltronix
(the Siltronix Web Page is back...)
A. Bright
Was at a Private Company Sale today... looking at
about 200 plus Motorola Mitreks ready for auction.
Are they still popular with you folks for repeater
projects? I'm trying to estimate demand and an
offer each radio price. A mixed bag of UHF VHF
units with mixed power levels.
After this,
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