[Repeater-Builder] DB4076 Duplexer Question

[dan173mi]

Hi.  I seen posts and chatter on the subject for years but I'm still a bit 
confused.  My apologies if this topic has already been addressed and I missed 
it.

I own two sets of original, square, light-tan-colored DB4076 duplexers.  The 
factory tag on both indicates they're "DB4076-B" units, and originally tuned in 
the 450's- 450.125 TX/455.125 RX.  Current 4076 info states "-B" freq range as 
470-492 MHz.

Its obvious to me however that the current version of the 4076 duplexer is 
completely different from these older square-cavity tan types.  Yet I see the 
older units everywhere at hamfests, ebay, etc.

Does anyone have specs on the original, square, light-tan cavity DB4076?  Maybe 
an old brochure or something? Any help would be greatly appreciated!

Dan Saputo  K8PLW

Livonia, MI

[Repeater-Builder] Re: HP 8924C

[serc1mp]

I also purchased mine from JTSELEC via E-Bay. Very satisfied with it. The 60
watt option makes it very nice for mobiles, etc. I would also look for the
high stability reference oscillator. Mine has it and it's nice for improved
accuracy. It may be something that they all have, I'm not sure on that. It's
not the most portable box, but it has a lot of nice features. I would think
you should be able to pick one up for under a grand.

 

Mike S.

 

[Repeater-Builder] programing motorola R100 CHEKSUM ERROR

[yy6kwd]

Greetings fellow community have several repeaters R100 MOTOROLA and trying to 
program the program throws the following message "error cheksum" I use a 486 
25mhz with DOS 6.22 and is the original Motorola interface. Someone will have a 
version of the program you have tried this type programming repeater?. the web 
that runs without problems but gives error when trying to program. If you have 
some saved codeplugs a VHF repeater in this series also could serve me. Thanks 
for your attention.

[Repeater-Builder] Re: Caution to Group Members Trojan from Yahoo Banner Advertisments

[Walter H]

Yes.

But they need instances of this to be reported, in particular, WHAT ad was 
responsible.

Go here and read the posting by Gordon of Yahoo! Groups.


WalterH



--- In Repeater-Builder@yahoogroups.com, "Paul Plack"  wrote:
>
> Has Yahoo been made aware?
> 
>   - Original Message - 
>   From: skipp025 
>   To: Repeater-Builder@yahoogroups.com 
>   Sent: Sunday, January 17, 2010 6:27 PM
>   Subject: [Repeater-Builder] Re: Caution to Group Members Trojan from Yahoo 
> Banner Advertisments
> 
> 
>   I actually believe I received the trojan from a banner ad 
>   while setting up new book-marks for one of the radio/repeater 
>   Groups I frequent...
>

Re: [Repeater-Builder] Re: Caution to Group Members Trojan from Yahoo Banner Advertisments

[wd8chl]

skipp025 wrote:
> 
> Re: Caution to Group Members 
> Trojan from Yahoo Banner Advertisements
>  
> I actually believe I received the trojan from a banner ad 
> while setting up new book-marks for one of the radio/repeater 
> Groups I frequent. 

Banner ads? I don't see no stinkin' banner ads
;c}

Gotta love Adblock!

Re: [Repeater-Builder] WTB 440 BPBR duplexer

[gerald bishop]

E-Bay !

--- On Mon, 1/18/10, Randy  wrote:

From: Randy 
Subject: [Repeater-Builder] WTB 440 BPBR duplexer
To: Repeater-Builder@yahoogroups.com
Date: Monday, January 18, 2010, 11:04 AM







 



  



  
  
  Hi,  Looking for a 440 duplexer.  



Randy






 





 



  






  

Re: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[Chuck Kelsey]

1/2" Heliax would work well. You don't have a very long run. Usually can be 
found pretty reasonable.

Did you kill the TX while listening to a weak signal on the local speaker? 
That's the cheap and dirty desense check. If you kill the TX and the receive 
signal improves, you know you have desense.

Chuck
WB2EDV



- Original Message - 
From: "thornwal" 
To: 
Sent: Monday, January 18, 2010 11:03 AM
Subject: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?


>
>
> I hear it better than I get into it.  With the IRLP node on 2m with less 
> power in the same spots the signal is full quieting, much  better compared 
> to the repeater. I guess it could be a combination of things, trees, coax, 
> height, etc.
>
> What coax is best without breaking the bank, hihi?
>
>
> --Greg KD3SU
>
>
>
> --- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey"  
> wrote:
>>
>> The first "red flag" is the LMR400 cable which is notorious for causing
>> desense in duplex service. Can you hear the repeater OK but have 
>> difficulty
>> getting in?
>>
>> Also, getting above the tree level can make a big difference on UHF.
>>
>> Chuck
>> WB2EDV
>>
>>
>>
>>
>> - Original Message - 
>> From: "thornwal" 
>> To: 
>> Sent: Monday, January 18, 2010 8:19 AM
>> Subject: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?
>>
>>
>> >
>> >
>> > --- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey" 
>> > wrote:
>> >>
>> >> Explain your 440 setup and the coverage. Maybe someone can offer some
>> >> pointers there.
>> >>
>> >> Chuck
>> >> WB2EDV
>> >>
>> >
>> >
>> > The 440 repeater is a Icom FR-4000, with a Sinclair duplexer (4 
>> > cavities).
>> > I have about 50 ft of LMR-400 coax running to a vertical ant (9.8 db) 
>> > on
>> > at ~25ft. I had a 25db preamp on it seemed to help a little. Freq is
>> > 447.9500+ MHz, ERP ~80 Watts, HAAT ~600 Feet, @1,200 ft elevation. My 
>> > 2m
>> > IRLP node @ 5 or 20w seems to do better than the repeater even though I
>> > have it on a dual band vert at a lower elevation, I figured it was the 
>> > 440
>> > band.
>> >
>> > I have RC210 controller on it for the IRLP node (multiple ports) but it
>> > keeps resetting and has locked up a few times (PTT on!) so that's why I
>> > put the IRLP on 2m simplex. Not sure why it locks up, maybe RF? It's 
>> > still
>> > resets every couple of days even though it's not used much.
>> >
>> > Coverage map:
>> > http://k5ehx.net/repeaters/qrepeater.php?id=15838
>> >
>> > Thanks,
>> >
>> > --Greg
>> >
>> >
>> >
>> >
>> >
>> > 
>> >
>> >
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>>
>>
>> 
>>
>>
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 9.0.725 / Virus Database: 270.14.148/2629 - Release Date: 
>> 01/17/10
>> 14:35:00
>>
>
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>






No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.730 / Virus Database: 270.14.149/2630 - Release Date: 01/18/10 
02:35:00

[Repeater-Builder] WTB 440 BPBR duplexer

[Randy]

Hi,  Looking for a 440 duplexer.  

Randy

[Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[thornwal]

I hear it better than I get into it.  With the IRLP node on 2m with less power 
in the same spots the signal is full quieting, much  better compared to the 
repeater. I guess it could be a combination of things, trees, coax, height, etc.

What coax is best without breaking the bank, hihi? 


--Greg KD3SU



--- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey"  wrote:
>
> The first "red flag" is the LMR400 cable which is notorious for causing 
> desense in duplex service. Can you hear the repeater OK but have difficulty 
> getting in?
> 
> Also, getting above the tree level can make a big difference on UHF.
> 
> Chuck
> WB2EDV
> 
> 
> 
> 
> - Original Message - 
> From: "thornwal" 
> To: 
> Sent: Monday, January 18, 2010 8:19 AM
> Subject: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?
> 
> 
> >
> >
> > --- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey"  
> > wrote:
> >>
> >> Explain your 440 setup and the coverage. Maybe someone can offer some
> >> pointers there.
> >>
> >> Chuck
> >> WB2EDV
> >>
> >
> >
> > The 440 repeater is a Icom FR-4000, with a Sinclair duplexer (4 cavities). 
> > I have about 50 ft of LMR-400 coax running to a vertical ant (9.8 db) on 
> > at ~25ft. I had a 25db preamp on it seemed to help a little. Freq is 
> > 447.9500+ MHz, ERP ~80 Watts, HAAT ~600 Feet, @1,200 ft elevation. My 2m 
> > IRLP node @ 5 or 20w seems to do better than the repeater even though I 
> > have it on a dual band vert at a lower elevation, I figured it was the 440 
> > band.
> >
> > I have RC210 controller on it for the IRLP node (multiple ports) but it 
> > keeps resetting and has locked up a few times (PTT on!) so that's why I 
> > put the IRLP on 2m simplex. Not sure why it locks up, maybe RF? It's still 
> > resets every couple of days even though it's not used much.
> >
> > Coverage map:
> > http://k5ehx.net/repeaters/qrepeater.php?id=15838
> >
> > Thanks,
> >
> > --Greg
> >
> >
> >
> >
> >
> > 
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> 
> 
> 
> 
> 
> 
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.725 / Virus Database: 270.14.148/2629 - Release Date: 01/17/10 
> 14:35:00
>

Re: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[James Adkins]

I'll "ditto" what Chuck said.  LMR-400 should be avoided like the plague in
repeater service.  If you're not making your cables out of some type of
superflex, try RG-214 with proper gender connectors, you can get BNC
connectors for this coax.  RG-400 is a good choice for interstage wiring,
like exciter to PA.

As for the Arcom RC-210's, I feel the same about them as the LMR-400.  We
had 3 of them at one point, all with v4.74 firmware.  One thing I did notice
was that on our site with just one repeater and no link radios, it was
fairly stable.  But, on our other sites (one with a repeater and link radio)
and one with two repeaters and IRLP, it was very unstable.  After nearly two
years of banging my head against the wall, we sought other options.

We're now using the SCOM 7330.  It has been a VERY reliable performer for
us, not one glitch, at all, EVER, since day one.  We are doing the same
things and more than what we ever did with the Arcom.  It was a hard sell to
club members because they thought the Arcom was cheaper (they weren't the
ones going up there every month to babysit it, either!)  But, when you
compare the price of an Arcom, pre-built and tested, with cabinet and 3 RAD
boards and software cost to an SCOM, which comes standard with the cabinet,
3 audio delay boards, 3 PL Encoders as well, the prices are pretty much the
same.  If you've ever used hyperterminal, you'll appreciate the ease of
programming the SCOM, too, without finicky software to use.

I've also had very good success with the CAT line of controllers.  They are
rock solid, simple controllers, but much less flexible than the new breed of
controllers.  NHRC also makes good, reliable controllers.  I've never used
any of the other brands.

I know that won't help your "reset" problems, but knowing there are other
options out there with the same features.  There's so many "fixes" for the
random resets hopefully you'll find one that works for you, we never did.

James Adkins, KB0NHX




On Mon, Jan 18, 2010 at 9:18 AM, kf0m  wrote:

>
>
> Greg: If you are not on the RC210 yahoo group you should join. Earlier in
> 2009 there were a lot of people having problems with RC210 resets with a
> few
> versions of firmware which has sense been resolved. You should check to see
> if you have one of the unstable versions loaded and then go to either v4.74
> or v5.281 to see if that will address your controller problems.
>
> John Lock
> kf0m at arrl.net
>
> > -Original Message-
> > From: Repeater-Builder@yahoogroups.com
> > [mailto:Repeater-Builder@yahoogroups.com]On
> Behalf Of thornwal
> > Sent: Monday, January 18, 2010 7:20 AM
> > To: Repeater-Builder@yahoogroups.com
> > Subject: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?
> >
> >
> >
> >
> > --- In Repeater-Builder@yahoogroups.com,
> "Chuck Kelsey"
> >  wrote:
> > >
> > > Explain your 440 setup and the coverage. Maybe someone can offer some
> > > pointers there.
> > >
> > > Chuck
> > > WB2EDV
> > >
> >
> >
> > The 440 repeater is a Icom FR-4000, with a Sinclair duplexer (4
> > cavities). I have about 50 ft of LMR-400 coax running to a
> > vertical ant (9.8 db) on at ~25ft. I had a 25db preamp on it
> > seemed to help a little. Freq is 447.9500+ MHz, ERP ~80 Watts,
> > HAAT ~600 Feet, @1,200 ft elevation. My 2m IRLP node @ 5 or 20w
> > seems to do better than the repeater even though I have it on a
> > dual band vert at a lower elevation, I figured it was the 440 band.
> >
> > I have RC210 controller on it for the IRLP node (multiple ports)
> > but it keeps resetting and has locked up a few times (PTT on!) so
> > that's why I put the IRLP on 2m simplex. Not sure why it locks
> > up, maybe RF? It's still resets every couple of days even though
> > it's not used much.
> >
> > Coverage map:
> > http://k5ehx.net/repeaters/qrepeater.php?id=15838
> >
> > Thanks,
> >
> > --Greg
> >
> >
> >
> >
> >
> > 
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
>
>  
>

Re: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[Chuck Kelsey]

The first "red flag" is the LMR400 cable which is notorious for causing 
desense in duplex service. Can you hear the repeater OK but have difficulty 
getting in?

Also, getting above the tree level can make a big difference on UHF.

Chuck
WB2EDV




- Original Message - 
From: "thornwal" 
To: 
Sent: Monday, January 18, 2010 8:19 AM
Subject: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?


>
>
> --- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey"  
> wrote:
>>
>> Explain your 440 setup and the coverage. Maybe someone can offer some
>> pointers there.
>>
>> Chuck
>> WB2EDV
>>
>
>
> The 440 repeater is a Icom FR-4000, with a Sinclair duplexer (4 cavities). 
> I have about 50 ft of LMR-400 coax running to a vertical ant (9.8 db) on 
> at ~25ft. I had a 25db preamp on it seemed to help a little. Freq is 
> 447.9500+ MHz, ERP ~80 Watts, HAAT ~600 Feet, @1,200 ft elevation. My 2m 
> IRLP node @ 5 or 20w seems to do better than the repeater even though I 
> have it on a dual band vert at a lower elevation, I figured it was the 440 
> band.
>
> I have RC210 controller on it for the IRLP node (multiple ports) but it 
> keeps resetting and has locked up a few times (PTT on!) so that's why I 
> put the IRLP on 2m simplex. Not sure why it locks up, maybe RF? It's still 
> resets every couple of days even though it's not used much.
>
> Coverage map:
> http://k5ehx.net/repeaters/qrepeater.php?id=15838
>
> Thanks,
>
> --Greg
>
>
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>






No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.725 / Virus Database: 270.14.148/2629 - Release Date: 01/17/10 
14:35:00

RE: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[kf0m]

Greg: If you are not on the RC210 yahoo group you should join.  Earlier in
2009 there were a lot of people having problems with RC210 resets with a few
versions of firmware which has sense been resolved. You should check to see
if you have one of the unstable versions loaded and then go to either v4.74
or v5.281 to see if that will address your controller problems.

John Lock
kf0m at arrl.net

> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:repeater-buil...@yahoogroups.com]on Behalf Of thornwal
> Sent: Monday, January 18, 2010 7:20 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire?
>
>
>
>
> --- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey"
>  wrote:
> >
> > Explain your 440 setup and the coverage. Maybe someone can offer some
> > pointers there.
> >
> > Chuck
> > WB2EDV
> >
>
>
> The 440 repeater is a Icom FR-4000, with a Sinclair duplexer (4
> cavities). I have about 50 ft of LMR-400 coax running to a
> vertical ant (9.8 db) on at ~25ft. I had a 25db preamp on it
> seemed to help a little. Freq is 447.9500+ MHz, ERP ~80 Watts,
> HAAT ~600 Feet, @1,200 ft elevation. My 2m IRLP node @ 5 or 20w
> seems to do better than the repeater even though I have it on a
> dual band vert at a lower elevation, I figured it was the 440 band.
>
> I have RC210 controller on it for the IRLP node (multiple ports)
> but it keeps resetting and has locked up a few times (PTT on!) so
> that's why I put the IRLP on 2m simplex. Not sure why it locks
> up, maybe RF? It's still resets every couple of days even though
> it's not used much.
>
> Coverage map:
> http://k5ehx.net/repeaters/qrepeater.php?id=15838
>
> Thanks,
>
> --Greg
>
>
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>

[Repeater-Builder] Re: Split Site Via Coax Cables & Wire?

[thornwal]

--- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey"  wrote:
>
> Explain your 440 setup and the coverage. Maybe someone can offer some 
> pointers there.
> 
> Chuck
> WB2EDV
> 


The 440 repeater is a Icom FR-4000, with a Sinclair duplexer (4 cavities). I 
have about 50 ft of LMR-400 coax running to a vertical ant (9.8 db) on at 
~25ft. I had a 25db preamp on it seemed to help a little. Freq is 447.9500+ 
MHz, ERP ~80 Watts, HAAT ~600 Feet, @1,200 ft elevation. My 2m IRLP node @ 5 or 
20w seems to do better than the repeater even though I have it on a dual band 
vert at a lower elevation, I figured it was the 440 band. 

I have RC210 controller on it for the IRLP node (multiple ports) but it keeps 
resetting and has locked up a few times (PTT on!) so that's why I put the IRLP 
on 2m simplex. Not sure why it locks up, maybe RF? It's still resets every 
couple of days even though it's not used much. 

Coverage map:
http://k5ehx.net/repeaters/qrepeater.php?id=15838

Thanks,

--Greg

[Repeater-Builder] Re:Caution to Group Members Trojan from Yahoo Banner Advertisments

[Chris Huber]

Could this be the  "Aurora exploit"  ?

This is impacting IE 6, 7, 8


http://news.cnet.com/8301-27080_3-10436083-245.html


Chris N6ICW

Re: [Repeater-Builder] Motorola R100 programming and PL controller

[Mike Morris]

At 02:44 PM 01/17/10, you wrote:
>I just bought an R100 and want to play with it on the Ham band - It 
>is supposed to come with the programming software but no cable (I 
>can build one - found the schematic already).  This repeater is DPL 
>- does anyone have a junk R100 PL that a guy might be able to the RX 
>controller (IC or board) out of fairly cheap?  From the manual it 
>looks like the IC and a couple cap changes are all that would be 
>needed. I'm not sure what needs to be done to get this to program 
>out of band, either - has anyone done this that might be willing to 
>explain the process to me?  Didn't see too many posts about these 
>when I searched.
>
>Thanks in advance - Dan

This writeup might be helpful as it gives info on patching the RSS
and interfacing an external controller.

You can get the functionality of a PL R100 by taking your DPL R100
and programming it as a carrier squelch unit then add an external
tone decoder (such as a TS32) to it.  An external controller such as
a low-end NHRC, ICS, Scom 5K etc could combine the COR and
tone decode signals in whatever mode you want.

If you need someone to set yours up let me know.

Mike