Either look at the rocks and run a sweep gen across the input or guess and
sweep it then
To: Repeater-Builder@yahoogroups.com
From: [EMAIL PROTECTED]
Date: Fri, 9 Nov 2007 02:14:08 +
Subject: [Repeater-Builder] fx5000
i have a philips fx5000 repeater
w
OK, here is where it really gets fuzzy for me:
§97.213 Telecommand of an amateur station.
...
(b) Provisions are incorporated to limit transmission by the station
to a period of no more than 3 minutes in the event of malfunction in
the control link.
Does that mean that the link must be active
i have a philips fx5000 repeater
which is on 86.1625mhz transmit.
how can i find the rx freq,not sure on uk offset but have had no luck
so far , it came from uk.
want to make sure receive is okay before i have it reprogrammed.
also looking for service manual
regards gary
One more question on this, if say you had a crossband at home, and you were
out. Your wife is home to shutoff radio with a phone call, does that cover
it or must it be a licensed operator?
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Keith, KB7M
Sent:
Thanks for the clarification! Craig
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Keith, KB7M
Sent: Thursday, November 08, 2007 1:00 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Part 97 question reference to Repeater
control
John, a couple of comments...
Duplex is the ability to talk and listen, send and receive, simultaneously,
nothing more.
In telephones, the technical challenge was to amplify baseband audio in both
directions over long circuits without creating feedback, which required keeping
the two audio pat
--- In Repeater-Builder@yahoogroups.com, Ken Arck <[EMAIL PROTECTED]> wrote:
>
> At 06:02 PM 11/8/2007, you wrote:
>
> >
> >
> >
> >In practice, this would drive licensees and control ops nuts,
> >because the mobile station's audio would not appear on the repeater
> >output, and anyone monitorin
On Nov 8, 2007, at 7:39 PM, John Barrett wrote:
> besides the fact that a person using a repeater is still bound to
> the 10 minute ID rule, so some of the input must be mixed to the
> output or the user would never be heard to ID on the output while
> the patch was in operation.
Another
On Nov 8, 2007, at 10:35 PM, John Barrett wrote:
> A repeater is NOT full duplex.. it is not simultaneously processing
> completely separate audio streams in and out.. it is processing the
> SAME audio in and out. There is only ONE audio path – full duplex
> requires TWO. Telephones accompl
On Nov 8, 2007, at 8:58 PM, [EMAIL PROTECTED] wrote:
>> To this day, I frequently run in-band full duplex. Just sort of an
>> old
>> habit :-)
>
> I assume your repeater doesn't have ADMs.
Or VoIP links with lossy/compressed CODEC's. :-)
--
Nate Duehr, WY0X
[EMAIL PROTECTED]
A repeater is NOT full duplex.. it is not simultaneously processing
completely separate audio streams in and out.. it is processing the SAME
audio in and out. There is only ONE audio path - full duplex requires TWO.
Telephones accomplish this by modulating both audio signals on a common
"carrier" (
>
> Nate Duehr wrote:
>>
>> On Nov 8, 2007, at 2:34 PM, Paul Plack wrote:
>>
>>> Manufacturers sometimes market features on new radios without regard
>>> to Part 97. I have an Alinco DR570T, one of the first, if not THE
>>> first, dual-band mobile to feature full duplex crossband repeat. As
>>> des
Doug,
The Repeater-Builder site has good info on VHF Engineering equipment. Here
is the PA manual:
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of dadavies3
Sent: Wednesday, November 07, 2007 2:24 PM
To: Repeate
Bob,
I remember it well. I knew some guys in Buffalo NY back in the day who had
converted IMTS rigs (pre-cellular mobile phones) with full-sized 2M duplexers
in their trunks!
In Buffalo, the first big repeater group was BARRA, led by W2EUP, Gil Boelke
(sp?) and some fellow repeater enthusiasts
John,
On a full duplex autopatch, there would be no provision for the mobile to
interrupt the landline...the mobile is keyed continuously for the entire
duration of the call.
The ham in the mobile is legal if he IDs every 10 minutes, regardless of
whether his call is heard on the repeater outp
Simplex: One frequency - you can either TX or RX, but not both.
Half Duplex - Two frequencies - you can either TX or RX, but not both.
Your TX frequency is different than your RX frequency.
Full Duplex - Two frequencies - you can RX and TX at the same time.
A repeater is Full Duplex operation. I
Ron, please clarify why you think that Part 97 would not allow using
2.4 gc. WiFi for a control link...
Laryn K8TVZ
--- In Repeater-Builder@yahoogroups.com, Ron Wright <[EMAIL PROTECTED]> wrote:
>
> John,
>
> Control on 144.39 is not allowed due to it not being an Auxiliary
frequency. Has to b
At 11/8/2007 18:13, you wrote:
>At 06:02 PM 11/8/2007, you wrote:
>
>>
>>
>>
>>In practice, this would drive licensees and control ops nuts, because the
>>mobile station's audio would not appear on the repeater output, and
>>anyone monitoring the repeater would only hear the landline party,
>>w
Scott,
Please elaborate on the "old age" problem. Are we talking about the wear
and erosion that results from endless "pumping" of the center tuning element
which, however slight, moves during cycles from cold when idle to warm after
long transmissions? That's about the only cause of a poor cont
Ohh there should be SOME crosstalk - listen closely to your landline phone -
you can hear yourself in the earpiece - this is called "side tone" and is
pretty hard to get rid of without echo cancelling hardware. side tone
happens because of the way that the coupling transformer extracts receive
audi
At 06:02 PM 11/8/2007, you wrote:
In practice, this would drive licensees and control ops nuts,
because the mobile station's audio would not appear on the repeater
output, and anyone monitoring the repeater would only hear the
landline party, without the mobile station's side of the call.
Nate,
The telephone industry standard definition for the term "duplex" means able to
listen and talk simultaneously; the ability to have a channel in both
directions at the same time, without the need for push-to-talk.
In essence, if you can interrupt the other party without waiting for him to
On Nov 8, 2007, at 6:42 PM, Nate Duehr wrote:
>
> On Nov 7, 2007, at 11:20 PM, Paul Plack wrote:
>
>> Nate,
>>
>> You'd have fewer thermal cycles, but a wider range of extremes
>> between hot and cold, since continuous duty for four hours would get
>> the joint to a higher peak temp.
>>
>> Am I m
On Nov 7, 2007, at 11:20 PM, Paul Plack wrote:
> Nate,
>
> You'd have fewer thermal cycles, but a wider range of extremes
> between hot and cold, since continuous duty for four hours would get
> the joint to a higher peak temp.
>
> Am I missing something?
>
> 73, Paul AE4KR
>
Well, the maxim
On Nov 8, 2007, at 2:34 PM, Paul Plack wrote:
> Manufacturers sometimes market features on new radios without regard
> to Part 97. I have an Alinco DR570T, one of the first, if not THE
> first, dual-band mobile to feature full duplex crossband repeat. As
> designed, it's crossband repeat fu
Hey guys,
I'm wondering if anyone has come up with a way to get a reliable
COR or any kind of RX active logic signal out of the Motorola GTX
Mobiles. I have two mobile radios I'd like to use for linking but need
a COR signal for my controllers.
Thanks,
Andy KC2GOW
Guys, with all due respect, any time this topic comes up it gets beat to death
without resolution. I completely understand the routine ban on Part 97
arguments here.
You might as well debate abortion or global warming. No matter how definitive
the FCC might get, there will be hypothetical scena
My comments on this were generalized. Note the use of terms like "common
dual-band radio" and "run of the mill dual-band radio".
Even the Kenwoods that supposedly support remote control don't do it in a
way that is usable (I know. I own one. I tried it. And it is a kludge that
would only work u
On Nov 8, 2007, at 10:59 AM, Keith, KB7M wrote:
> This is an issue that is highly misunderstood, and commonly abused.
> A "crossband" repeater is still a repeater and must therefore follow
> all of the rules for repeater operation. Unfortunately, the common
> dual-band mobile radio that s
Jim,
I agree. One could perform control functions on a say 10 meter repeater input
in my option. A "primary" control method must be available and in place, but
control can still be by other means. I would think someone calling a
non-licensed Ham at the repeater site and allowing them to unpl
Could we say this same for a repeater IDing the final ID. The repeater did not
have an input for the repeater to come up. Of course the control is responding
to a previous input, but the control decided when to key and send the ID.
97.111 Authorized transmissions:
(b)(6) transmissions necessa
-Original Message-
>From: "Keith, KB7M" <[EMAIL PROTECTED]>
>Sent: Nov 8, 2007 11:59 AM
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder] Part 97 question reference to Repeater control
>
>This is an issue that is highly misunderstood, and commonly abused. A
>"crossband
This is an issue that is highly misunderstood, and commonly abused. A
"crossband" repeater is still a repeater and must therefore follow all of
the rules for repeater operation. Unfortunately, the common dual-band
mobile radio that supports repeater mode generally does not include ANY
support for
Can anyone clarify if a radio can be used to crossband from 2 meters to say
220 or 440 under these rules?
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Jim
Sent: Thursday, November 08, 2007 12:07 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Re
Hello Tony
If we are talking in the 2 meter ham band---read on.
The PD 497 series duplexer is a very good duplexer until old age sets in-I
have two of them here that have gone noisey---I should say that mine produce
wide band noise when transmitter power is appliedlots of desense in spi
At 11/7/2007 11:28, you wrote:
>But where does it require a control link (AUX station) to control the
>repeater? (or landline ot local)
97.213(a). Remote control may only be performed by telecommand, , & only
auxiliary stations may provide an over-the air control link.
Bob NO6B
At 11/7/2007 00:54, you wrote:
>So a repeater is both an Automatically Controlled station and a
>Telecommand Station? (And a Repeater Station on top of that?)
Close. A repeater can be an automatically controlled station OR a station
under remote control via telecommand. Further, if the telecom
Ron Wright wrote:
> John,
>
> Control on 144.39 is not allowed due to it not being an Auxiliary
> frequency.
Change that to "PRIMARY" control. Nothing illegal about control on
144.39, just that that can't be the PRIMARY control.
--
Jim Barbour
WD8CHL
Kevin Custer wrote:
> Oh, BTW the rules discussion is fine for now.
>
> Kevin Custer
>
Oh, this isn't an argument at all!
;c}
--
Jim Barbour
WD8CHL
John Barrett wrote:
> a Time Of Day macro to me is an automated function.. how can something that
> is automatic not be considered automatic control
>
> OK - lets define terms here...
>
> An automated function is anything the controller does without human input
> beyond keying up and talking.
No
[EMAIL PROTECTED] wrote:
> It is going to be a sad day when the "Narrow Banding"
> takes place, as it is on a USAF MARS fx., and we fall under the new
> regs!! I guess I will have to convert to 2m HAM, and re tune the
> Waccom Duplexers!! 73's DE TIM W7TRH/AFA5TP Vashon Wa.
I don't know if MARS is
Is there desense using an isolated TEE and Dummy load ? Steve NU5D
Captainlance wrote:
> *I use 2 of these, try adding an additional pass cavity on the RX
> side.it improves the performance greatly. Also, check the duplexer
> with an return loss bridge and a tracking generator. The slightest
I use 2 of these, try adding an additional pass cavity on the RX side.it
improves the performance greatly. Also, check the duplexer with an return loss
bridge and a tracking generator. The slightest off-tune of the unit, especially
the rejects and you get noise.I assume that you are suing double
Joe,
I think this is what we are looking for:
Under Definitions:
(43) Telecommand/. A one-way transmission to initiate, modify, or terminate
functions of a device at a distance.
§97.213 Telecommand of an amateur station.
An amateur station on or within 50 km of the Earth's surface may be und
I think I just replied to the wrong post. This is the one I intended to
reply to a few minutes ago.
Joe M.
Ron Wright wrote:
>
> Joe,
>
> It is in 97.213.
>
> 73, ron, n9ee/r
>
> >From: Ron Wright <[EMAIL PROTECTED]>
> >Date: 2007/11/07 Wed PM 08:37:40 CST
> >To: Repeater-Builder@yahoogroups.
I saw that initially, but is a repeater a station under Telecommand? I
guess that might be where it has always been, though.
Thanks, Ron.
Joe M.
Ron Wright wrote:
>
> John,
>
> Control on 144.39 is not allowed due to it not being an Auxiliary frequency.
> Has to be 144.5-144.8 and 146-148 on
John,
Control on 144.39 is not allowed due to it not being an Auxiliary frequency.
Has to be 144.5-144.8 and 146-148 on 2 meters.
Not sure about the 2.4 G WiFi for now you getting into an area that is more
than RF, but strict reading of 97 would not allow it.
73, ron, n9ee/r
>From: John Ba
Joe,
It is in 97.213.
73, ron, n9ee/r
>From: Ron Wright <[EMAIL PROTECTED]>
>Date: 2007/11/07 Wed PM 08:37:40 CST
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: Re: [Repeater-Builder] Part 97 question reference to Repeater
>control
>
>Joe,
>
>You might have a point. I
Joe,
Had to dig to find it again.
97.213 Telecommand of an amateur station.
It defines the methods that can be used to control a station remotely.
Auxiliary freq are allowed for RF control link.
One thing that I get confused with..."malfunction in the control link". The
control link could be
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