Re: [Repeater-Builder] Re: Circular polarization for VHF repeaters?

On Fri, 3 Sep 2010, Gary - K7EK wrote: > Thanks to all that replied. I appreciate your input. I'm still looking > for answers, but may be onto something. I have emailed Bill > Pasternak, the author of that Cushcraft 4-pole conversion article. I > re-read his original article and may have figure

[Repeater-Builder] Re: Circular polarization for VHF repeaters?

Thanks to all that replied. I appreciate your input. I'm still looking for answers, but may be onto something. I have emailed Bill Pasternak, the author of that Cushcraft 4-pole conversion article. I re-read his original article and may have figured out what I must do. That, plus any additiona

[Repeater-Builder] Re: Motorola R2600 question

--- In Repeater-Builder@yahoogroups.com, "wa6epd" wrote: "Wondering if anyone has found a source for the memory backup battery for the Motorola R2600 Service Monitor? Motorola says the part is obsolete and General Dynamics is doing some research, but it doesn't sound good. This one is so d

[Repeater-Builder] 2011 Las Vegas VoIP event

Sent bcc We will do the annual VoIP event Saturday April 9, 2011 at Circus-Circus. Yes, a party Friday night same as last year. This is the weekend before the NAB Conference. See you there!!

[Repeater-Builder] A DB224E antenna...

Greetings. I'm the trustee of our local club's 2m repeater. It's NE of the big town of Joplin, MO. (147.210) What I want to find out, I'm going to ask our club to buy a new 224e antenna (assuming that this is the correct version needed for T147.210 R147.810), and arrange the elements on the north

RE: [Repeater-Builder] Re: Circular polarization for VHF repeaters?

I completely agree! Back in the late 60's, I was Chief Engineer at WLRW- the first FM station in the state of Illinois to broadcast in stereo- and this was in Champaign-Urbana, not Chicago! The transmitter was an RCA BTF-10D which fed five Andrew "Vee" antennas and five Gates "Rings", giving us a

[Repeater-Builder] Re: Motorola R2600 question - Answered

Thanks to all who responded. With their help, I was able to locate a replacement. It seems they have upgraded the battery from a NiCad type to a nickel-metal hydride type. See link below for source. Thanks again

Re: [Repeater-Builder] Re: Circular polarization for VHF repeaters?

Thanks Paul and Kris for your suggestions. While 29 MHZ could well be better, we do not have that option. These are non-amateur operations although the base station and repeater are owned and operated by local amateurs. We do have a few amateurs scattered amongst the search teams too - but

[Repeater-Builder] Looking For: LB (6m) Micor Repeater PA (continuous duty)

Hi Folks, I'm getting pretty close to putting up the machine, and I am looking for a 'real' PA for it. High split low band Micor PA so I can move it to 6 meters. Continuous duty. Already have the rest of the Micor components (RX, cards, exciter, etc). Please respond off-line. thanks! tim W5

[Repeater-Builder] IC-RX7

Anyone here have an ICOM IC-RX7 receiver and would not mind contacting me off-list? I want to figure out what is the best way to organize the memories. The thing has a weird structure. k4fh k4fh com 73, Chris k4fh

[Repeater-Builder] Ctcss- internal or external

Hello all- I have put together a small repeater with 2 Maxon UHF radios. Here is the question. Is it better to use the internal ctcss decoder with a line to the controller or to use an external decoder such as the ts-64? Would there be an advantage of using one over the other? Thanks for the hel

Re: [Repeater-Builder] Re: Circular polarization for VHF repeaters?

On Thu, 2 Sep 2010, Paul Plack wrote: > Gordon, something worth trying might be low-band. > > About 20 years ago, I lived in an area where hams did course communications > for rally events in very mountainous terrain. I remember experimenting one > night about 2am with my partner at the other end

Re: [Repeater-Builder] Re: Circular polarization for VHF repeaters?

On Thu, 2 Sep 2010, Gordon Cooper wrote: > I guess that I do not have much to contribute on this > thread but to me it is very interesting reading. Gary has my sympathy, > his problem is duplicated here. Much of my repeater work relates to a > low power portable repeater on 141 MHz.

Re: [Repeater-Builder] Re: Circular polarization for VHF repeaters?

There is one local UHF group that has a back-to-back 6m repeater just for range extension. The Scom 7330 makes the parallel/separate link on/off mode real easy (and for up to 3 ports). At 02:10 AM 09/02/10, you wrote: Gordon, something worth trying might be low-band. About 20 years ago, I liv

Re: [Repeater-Builder] Motorola R2600 question

Lets get some pictures johnny On Thu, Sep 2, 2010 at 10:25 AM, wa6epd wrote: > Wondering if anyone has found a source for the memory backup > battery for the Motorola R2600 Service Monitor? > > Motorola says the part is obsolete and General Dynamics > is doing some research, but it doesn't sound

[Repeater-Builder] Motorola R2600 question

Wondering if anyone has found a source for the memory backup battery for the Motorola R2600 Service Monitor? Motorola says the part is obsolete and General Dynamics is doing some research, but it doesn't sound good. This one is so dead, that it doesn't show polarity, otherwise I could just rep

Re: [Repeater-Builder] Re: Circular polarization for VHF repeaters?

I would agree that lower gain antennas can make a big difference in some instances. Higher gain mean more nulls. Chuck WB2EDV - Original Message - From: petedcur...@gmail.com To: Repeater-Builder Sent: Thursday, September 02, 2010 10:38 AM Subject: Re: [Repeater-Builder] Re

Re: [Repeater-Builder] Re: Circular polarization for VHF repeaters?

It looks like the FCC rules give you extra power when opting for dual polarization. Doesn't mean the circular antenna contributes to extra coverage, in fact it looks like the extra RF power allowed for the two polarities is giving you more coverage? The web article for which I gave a link was fro

Re: [Repeater-Builder] Re: Circular polarization for VHF repeaters?

Gordon, something worth trying might be low-band. About 20 years ago, I lived in an area where hams did course communications for rally events in very mountainous terrain. I remember experimenting one night about 2am with my partner at the other end of a heavily wooded course, about 12 miles en

RE: [Repeater-Builder] Circular polarization for VHF repeaters?

I can't see a problem in making a test unit doesn't look like rocket science http://www.hardhack.org.au/polarisation some copper and solder http://www.astronwireless.com/topic-archives-antennas-polarization.asp To: Repeater-Builder@yahoogroups.com From: k...@catonic.us Date: Thu, 2 Sep 2010

Re: [Repeater-Builder] Re: Circular polarization for VHF repeaters?

HI to all, I guess that I do not have much to contribute on this thread but to me it is very interesting reading. Gary has my sympathy, his problem is duplicated here. Much of my repeater work relates to a low power portable repeater on 141 MHz. We live near a medium sized mountain