At 09:24 PM 12/19/05, you wrote:
I have available an pile of RCA 700 series rigs, long removed from service.
They're probably UHF, but I don't know at this point.
Is anyone interested in acquiring any of these for a nominal fee? (read cheap)
Thanks,
Robin Midgett K4IDC
VHF+ Glutton EM66se
If
For those in the US I suggest that you check out Tri-State
Electronics in the Chicago area.
Their URL is: http://www.tselectronic.com/index.html, you may call
them and ask for Mark. You can call them at 800-445-0896. They are
very knowledgable and have a noce selection of antennas.
Craig
---
I have a number of Wacom quad 901 MHz 4 cavities, Sinclair 3 cavity
500W BPF w/7/16 DIN, 901 MHZ RX preamp/distribution amps available.
Also 901/940 MHz whip and panel antennas and 250 W 940 MHz Linear PA
(local pickup in SF Bay area. This stuff came out of a NBPCS
deconstruct and is in servicable
What the heck does this essay have do to with repeater building? Perhaps
the moderator should ponder eliminating this chatter from the group... The
SNR is rising around here to annoying levels
73
John Maurer WØDP
Ames, Iowa
- Original Message -
From: Mike Perryman [EMAIL
Robin Midgett wrote:
I have available an pile of RCA 700 series rigs, long removed from service.
They're probably UHF, but I don't know at this point.
Is anyone interested in acquiring any of these for a nominal fee? (read cheap)
Along these lines, I just received a bunch of RCA conversions
Well you would think that is the case, but people are getting tired of the rising cost, paying each month for re-runs. My TV antenna section of the store is the 2nd greatest source of income.Mathew N9LV [EMAIL PROTECTED] wrote: At 12/19/2005 08:11, you wrote:Mathew Quaife wrote: They
Bryan Fields wrote:
On Monday 19 December 2005 09:55 pm, Kevin Custer wrote:
Yes it can... FM that is...
Well the distortion I am seeing due to the final looks like AM, but then the
vco has FM distortion when you tap the board so it's hard to tell. It's a
combo of
John,
You are absolutely correct! It has nothing to do with repeater building,
and I apologize for the bandwidth.
mike
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of John J. Maurer
Sent: Tuesday, December 20, 2005 1:48 AM
To:
While I will agree, I gather all this information, and when I attend the Radioshack conventions, I bring these points to the attention of those that can make a difference. Sometimes they listen, and most often they don't. But all it takes it one time to grab the attention of one head master and
Thanks Mike, we needed that.
Neil McKie
Mike Perryman wrote:
Bob,
While the number of folks submitting to sub-standard HDTV is common, those
of us who know that none of the DBS and cable providers are sending true
1080i still seek a good quality off-air antenna. At this point in
Excuse me Michael ...
I have several RCA Series 700 mobiles and stations here on both
High-band and UHF - none of them have a single tube in them. I
also have the supporting factory issued Instruction Manuals
Mike Morris wrote:
At 09:24 PM 12/19/05, you wrote:
I have
There are some extremely broadband linear amps you can find on Ebay
and such that amplify up to 1w from dc to 1ghz with 30-40db gain
which can be driven off the gen port of your monitor for extra
dynamic range. Calibration obviously goes, but when you are trying to
see the bottom of the range,
Bryan Fields wrote:
As to the origional question, anyone fixed the microphonics problems with the
exciter?
heh-I have a fix-it involves small explosive devices...
--
Jim Barbour
WD8CHL
Yahoo! Groups Links
* To visit your group on the web, go to:
Kevin Custer wrote:
Bryan Fields wrote:
On Monday 19 December 2005 09:55 pm, Kevin Custer wrote:
Yes it can... FM that is...
Well the distortion I am seeing due to the final looks like AM, but
then the vco has FM distortion when you tap the board so it's hard to
tell.
Or a 20 lb sledge hammer?
Neil - WA6KLA
Jim B. wrote:
Bryan Fields wrote:
As to the origional question, anyone fixed the microphonics problems with
the
exciter?
heh-I have a fix-it involves small explosive devices...
--
Jim Barbour
WD8CHL
Yahoo! Groups Links
Ok, all seems to be working, I have five channels up and running, they all seem to vote well. The only issue that I have now is that I cannot get the controller to accept any DTMF commands from any of the receivers. The echolink controller will accept the commands just fine, which goes through
If the PA microphonic AM'ming is severe enough, there could be enough power
supply modulation, due to the PA current varying by the AM occuring in the
PA, that FM at the same modulation rate can occur in preceding exciter
stages (such as in the crystal oscillator, modulator, active temperature
Neil McKie wrote:
Or a 20 lb sledge hammer?
Neil - WA6KLA
Only if you can't get the explosives!
Jim
Jim B. wrote:
Bryan Fields wrote:
As to the origional question, anyone fixed the microphonics problems with the
exciter?
heh-I have a fix-it involves small explosive
That will work !!
Neil
Jim B. wrote:
Neil McKie wrote:
Or a 20 lb sledge hammer?
Neil - WA6KLA
Only if you can't get the explosives!
Jim
Jim B. wrote:
Bryan Fields wrote:
As to the origional question, anyone fixed the microphonics problems with
the
I'm assuming that if the old RG-8 cables are being replaced with RG-214 cables
that are the same length, that the velocity factors of both types of cable are
the same.
-Original Message-
From: Bob M. [EMAIL PROTECTED]
Sent: Dec 19, 2005 7:10 PM
To: Repeater-Builder@yahoogroups.com
Put a scope on the audio output of the voter and see if the tones are
getting through.
If not, put the scope on the audio input of one of the receivers that
you are testing and see if the tones are there.
If not, go back to the remote receiver and put a scope on the receiver
to see if the
I'm assuming that if the old RG-8 cables are being replaced
with RG-214 cables that are the same length, that the
velocity factors of both types of cable are the same.
Yep, 66%. Unless it's RG-8 foam, but I'm 99% sure that PD used regular
solid dielectric RG-8.
--- Jeff
If the VF is different, then the lengths would need to
be recalculated. The factory cables use MIL-spec
RG-214 (double shielded, silver-coated), with crimp-on
male N connectors, and the lengths of the new cables I
got matched the lengths in the table of jumpers
RFSystems sent me. When I made my
At 12/19/2005 22:18, you wrote:
Bob,
While the number of folks submitting to sub-standard HDTV is common, those
of us who know that none of the DBS and cable providers are sending true
1080i still seek a good quality off-air antenna. At this point in the
game, it is the best way to get true
Hi Dwayne, I am able to hear the tones come out through the repeater, and they sound fine, and I can get it to work the echolink box just fine, and those tones comes through all 5 receivers just fine. But as for any commands for the controller, they just will not let me do anything. I can see
Paul, I believe you are correct.
The RCA Super-Carfone was the model with the quick heating
filaments
The RCA Super-Carfone 500 Series was more solid-state but
had the slower heating tube final.
The RCS Series 700, 1000 and ML1000 were all solid state.
... or something like
Jim,
The RCA 500 series radios were two strips sort of like the Mastr Pro, the
Pro had an additional strip in the middle for the power supply. My second
repeater was a Pro, I took the mobile power supply out and modified a 100
watt A strip supply to run it. I had to build a 12 and 10 volt
Nope ...
One basic cad plated chassis with a metal casting on the front.
The receiver front end, oscillator / multiplier chain and first
IF sections are in the front mounted metal casting mounted on the
chassis. The second IF and audio/squelch board is mounted on the
bottom of
The RCA Series 500 mobile is as Paul says ... except the exciter
is located in the receiver housing.
Paul Finch wrote:
Jim,
The RCA 500 series radios were two strips sort of like the
Mastr Pro, the Pro had an additional strip in the middle for the
power supply. My second
FCC processing of Vanity Calls scheduled to resume January 4 2006.
73
AC0Y
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
* To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
* Your use of Yahoo!
On the subject of the RCA 500 700 series (since there seems to be a
knowledge base among the group)...the later models of the 500 series
used a RF amplifier module to drive the PA. It is a blue package,
that, I'm told, replaced (partially) a former complicated and
unreliable tripler section.
hi just got me a hdtv at mal mart with hdtv tuner
build inside.
i get the best tv picture i every had.
here ..
at what freqency in the uhf band is the hdtv
send on...
cant seem to find it anywhere on the
internet...???
i useing a homebuild uhf ant with a pre
amp..
would like to build
Neil,
Like I said, it been a good long time. Emphasis on good.
Paul
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Neil McKie
Sent: Tuesday, December 20, 2005 2:07 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder]
Google the TV station call signs in your area and their web sites will
tell you the DTV channel number.
Chuck
Toby wrote:
hi just got me a hdtv at mal mart with hdtv tuner build inside.
i get the best tv picture i every had. here ..
at what freqency in the uhf band is the hdtv send
Robin,
As far as I can remember the 700 did not use any kind of module, it seems
the multiplier stage showed out the top on the left hand. I think Neil has
worked on them since I did, I do have at least two 700 VHF base stations and
one 700 UHF repeater I would love to sell! The VHF units would
Coy Hilton wrote:
FCC processing of Vanity Calls scheduled to resume January 4 2006.
73
AC0Y
didn't know they stopped. can't imagine why they would either...
(not that it matters to me anyway)
--
Jim Barbour
WD8CHL
Yahoo! Groups Links
* To visit your group on the web, go to:
They discontinued after the hurricane problems along the Gulf coast - mainly
because many hams in that area couldn't renew licenses and/or apply for
vanity call signs for a while.
Mark - N9WYS
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf
HDTV stations use the same channels as analog TV stations.
If you have a channel 2, for example, and they put up a HDTV station, it
may be on TV channel 19.
Joe M.
Yahoo! Groups Links
* To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
* To
You know, this subject (mail subject line) reminds me of the stories I
was told about them coming out with antennas for *COLOR* TV that were
interpreted to be different from BW TV antennas. Supposedly, for color
TV you needed a Color TV antenna.
BW TV, Color TV, HDTV... they ALL use the same
At 07:48 PM 12/20/2005 -0500, you wrote:
BW TV, Color TV, HDTV... they ALL use the same frequencies and the same
antennas would work equally well.
---Seems to me I remember the color antennas were being pushed as wide
bandwidth. Which of course you needed for color TV!
Ken
how do you get a vanity call sign? could you please give me a little info?
thanks
- Original Message -
From: N9WYS [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, December 20, 2005 7:17 PM
Subject: RE: [Repeater-Builder] Vanity call resumes
They discontinued
had some here in Florida would sell the silver non plated ant as BW the
gold ones were for color so when you went in the area you know who had the
color TV.
good sales campaign
- Original Message -
From: Ken Arck [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday,
At 09:07 PM 12/20/2005 -0500, you wrote:
had some here in Florida would sell the silver non plated ant as BW the
gold ones were for color so when you went in the area you know who had the
color TV. good sales campaign
---Back in the early 70's, I worked at an electronics store that also did
More importantly to this group, how do I interface it to my repeater ??
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
[EMAIL PROTECTED] On Behalf Of mch
Sent: Tuesday, December 20, 2005 4:48 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re:
BW TV, Color TV, HDTV... they ALL use the same frequencies and the same
antennas would work equally well.
---Seems to me I remember the color antennas were being pushed as wide
bandwidth. Which of course you needed for color TV!
There are always things like digital ready, I made sure that
Maire-Radios wrote:
how do you get a vanity call sign? could you please give me a little info?
thanks
The short answer is it isn't easy, atleast that was my experience.
Start at QRZ.com you will find links etc much to much to go into here.
But then I hate working thru beaurocracy more than
Go to www.vanityhq.com. All the info you need is there.
Scott Madison, WN1B
--- In Repeater-Builder@yahoogroups.com, Maire-Radios maire-
[EMAIL PROTECTED] wrote:
how do you get a vanity call sign? could you please give me a
little info?
thanks
- Original Message -
From:
There are always things like digital ready, I made sure that was on
the pair of headphones for my portable CD player.
This is a good one .. how is audio 'digital' its not a 1 or a 0 ... its
analog ... just another way to raise the price tag on the same old
stuff ..
ummm I would just
Paul ... smile ...
Neil
Paul Finch wrote:
Neil,
Like I said, it been a good long time. Emphasis on good.
Paul
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Neil McKie
Sent: Tuesday, December 20, 2005 2:07 PM
To:
He's quite correct ... they be heavy.
Neil
Paul Finch wrote:
Robin,
As far as I can remember the 700 did not use any kind of module,
it seems the multiplier stage showed out the top on the left hand.
I think Neil has worked on them since I did, I do have at least
two 700 VHF
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