IIRC, there is some sort of setscrew mechanism at the top end that
holds the upper end of the radiating elements to the little metal hat;
check there.
Chuk G.
Cary, nc
--- In Repeater-Builder@yahoogroups.com, Steve [EMAIL PROTECTED] wrote:
Anyone have info on the proper way to disassemble a
With all the talk about switching power supplies, I asked a question
but did not really see my answer. Currently I have an Astron 70 Amp
power supply on the repeater system. I have access to a 100 Amp
Audiopipe DSPS10012 switching power supply available for the
repeater. What would be the
I agree Rick the kg4lne programmer is best. I bought the bare board
and software 2 yrs ago and works 100%. All parts were cheap and
available from Digi-Key.
Great to have a solid program that works on XP and can save multiple
configurations with comments in each memory channel...very handy.
I see
Does anyone else have trouble accessing this group?
Seems to be down
NB2A
Tom
Mathew,
I assume that your Astron power supply is a linear type, such as the RS-70.
To the best of my knowledge, all commercial base and repeater stations have
been equipped with switching power supplies for many years. Switching power
supplies are generally much more efficient, quieter,
At 08:49 AM 1/13/2007, you wrote:
Although cheap and EMI-prone switching power supplies are certainly
available to the unwary buyer, the switchers offered by name brand makers
such as Astron, Duracomm, and Samlex are extremely quiet RF-wise.
The self-resonant transformer power supply in
Steve, I will send you an email with description pictures of PD220
antenna dissassenbly I did about a year ago. I want to contribute this
as an article for the group, but didn't have the time to finish it up
yet, but all the info you need is included. Need ur email address.
George / WA2VNV
. Super Sataionmaster Disassembly
Posted by: Steve [EMAIL PROTECTED] spassmo
Date: Fri Jan 12, 2007 3:35 pm ((PST))
Anyone have info on the proper way to disassemble a VHF Super Stationmaster
antenna (PD220?) This one has 3 flat-head allen screws in the aluminum base
section about an
Although cheap and EMI-prone switching power supplies are certainly
available to the unwary buyer, the switchers offered by name brand
makers such as Astron, Duracomm, and Samlex are extremely quiet
RF-wise.
Naa I wouldn't make that statement as being global. Just
depends on where
George Sintchak wrote:
Steve, I will send you an email with description pictures of PD220
antenna dissassenbly I did about a year ago. I want to contribute this
as an article for the group, but didn't have the time to finish it up
yet, but all the info you need is included. Need ur email
We replaced our troublesome Astron 50 amp, linear, rack mounted supply
with a Duracomm switched mode model about a year ago. No problems
whatsoever thus far. No noise at all on 70cm. Much lighter too; I
didn't hurt my back lifting into the cabinet as I have with the Astron.
--- In
George,
Can you CC me, as I would like to have that information also? I have one to
take apart also.
73 JIM KA2AJH
[EMAIL PROTECTED]
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of George Sintchak
Sent: Saturday, January 13, 2007 12:25 PM
If you have RFI problems from a switching supply, it is not likely to show up
on 70 CM, it is more likely to show up somewhere below 30 MHz.
-- Original Message --
Received: Sat, 13 Jan 2007 01:49:42 PM CST
From: Tony L. [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Subject:
Thanks Eric, well it is what I have, but the repeater draws nearly 30 amps on
full key down.
Mathew
Eric Lemmon [EMAIL PROTECTED] wrote:
Mathew,
I assume that your Astron power supply is a linear type, such as the RS-70.
To the best of my knowledge, all commercial base and
I have a whole box of new ones never used.
These are discontinued and give you reverse burst with a tone board.
Email me directly if interested.
NB2A
Tom
Me too as well :P
donw at engineeringinc dot com
On 1/13/07 11:01, Kevin Custer [EMAIL PROTECTED] wrote:
George Sintchak wrote:
Steve, I will send you an email with description pictures of PD220
antenna dissassenbly I did about a year ago. I want to contribute this
as an article for the
Hi Mathew,
If the supply you are using is fine why change? Yes, you would gain some
amperage capacity. However, switching supplies are inherently noisy. You
could experience problems from these noises. I realize we are not talking
about HF. But, it is possible to wind up with a problem you
Steve,
You have to take a torch and heat up/desolder the top copper tip then
you can pull the antenna out of the fiberglass from the bottom. I took
an old piece of cable with an N connector(or whatever connector is on
the antenna) and used it to help mepull the antenna out. Also, those
antennas
Hello to the group,
I am reworking a pair of RR454 rptrs and need a svc manual. Does
anyone have a copy to sell or loan? Many Thanks
73
Jack
KR9Q
Hello,
I have an opportunity to acquire a MSR 2000 VHF base station that is
currently channeled for 159.075 Mhz. I'd like to convert it to a 2
meter base station on 146.895 Mhz. Can this be done? I think I read
where there was 2 different splits for this radio, a VHF model on
the low end
* seoemsdirector [EMAIL PROTECTED] [2007 Jan 13 20:46 -0600]:
Hello,
I have an opportunity to acquire a MSR 2000 VHF base station that is
currently channeled for 159.075 Mhz. I'd like to convert it to a 2
meter base station on 146.895 Mhz. Can this be done? I think I read
where there
I scanned the book a couple of years ago - If I still have the pdf will send
Mon or Tue. Steve NU5D
On 1/13/07, jack_kr9q [EMAIL PROTECTED] wrote:
Hello to the group,
I am reworking a pair of RR454 rptrs and need a svc manual. Does
anyone have a copy to sell or loan? Many Thanks
73
Jack
I say go for it!
I have a whole pile of msr2k guts on my bench waiting for assembly. The
thing I LOVE about these units is that everything is modular. The tx and
rx boards just slide in and out. All the cards are the same way.
You could almost run any amp you want if the factory one blows up.
Does anybody have the AEA Isopole 220mhz and 440 data sheet (the one
that was packed inside the box) ??
The 220 one is on the repeater-builder web site, but not the 220 or
440. Was there a 6m one?
This request came about due to an email from a gentleman who has a
virgin 220mhz one except
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