Re: [Repeater-Builder] Re: Duplexer parts

2010-04-17 Thread Gary Hoff
Sorry Skipp, never got that request, sometimes I think not all the emails to this group end up getting forwarded to me. If you've followed the thread you know I did order one that is not quite exact but should work. Thanks again everyone for your help. Gary - K7NEY On 4/17/2010 5:52 PM,

Re: [Repeater-Builder] Re: Duplexer parts

2010-04-16 Thread Gary Hoff
large selection of Johnson, series 167 capacitors and will be able to give you the exact specifications on the broken one that you have. Gregory AC6VJ --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com, Gary Hoff k7ney...@... wrote: I already found that one

Re: [Repeater-Builder] Re: Duplexer parts

2010-04-16 Thread Gary Hoff
and will be able to give you the exact specifications on the broken one that you have. Gregory AC6VJ --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder@yahoogroups.com, Gary Hoff k7ney...@... wrote: I already found that one, thanks anyway, the 167-205 is close

[Repeater-Builder] Duplexer parts

2010-04-15 Thread Gary Hoff
I have an old Phelps Dodge VHF Duplexer that has a frozen air variable. The Duplexer is a part# 499-509 and covers 144-174. The air variable in question is stamped 167-202 and is split stator about 1 3/8 square. Anybody know where I might find a suitable replacement, I haven't had any luck

Re: [Repeater-Builder] Duplexer parts

2010-04-15 Thread Gary Hoff
/Variables/ButterflyCapacitors/ButCap1.html http://www.surplussales.com/Variables/ButterflyCapacitors/ButCap1.html (CAV) 167-205-71 sounds close to it. On Thu, Apr 15, 2010 at 11:59 AM, Gary Hoff k7ney...@q.com mailto:k7ney123%40q.com wrote: I have an old Phelps Dodge VHF Duplexer that has a frozen

Re: [Repeater-Builder] DB-4072 duplexers

2010-02-06 Thread Gary Hoff
I tuned one at one time on 447.05/442.05 and it worked well. Don't remember the rejection numbers though. Gary - K7NEY On 2/5/2010 9:52 PM, James Adkins wrote: Wondering if anyone knows if the 6-cavity set of DB-4072's made for 450-470 MHz will go down to 444.425 MHz / 449.425 MHz? I

Re: [Repeater-Builder] IFR 1600S

2009-08-30 Thread Gary Hoff
I have a 1600S, have had it now for about 3 years. No trouble at all. I Love it.. The operators manual is available on the net in a PDF, however I got mine from the company I purchased the Monitor from in printed form. It's several hundred pages. Gary - K7NEY shibukiau wrote: I have a

Re: [Repeater-Builder] Re: IFR 1600S

2009-08-30 Thread Gary Hoff
you send me the link for the operators manual?? I don't have any info on the unit so I'm sort of flying blind trying to run this unit!! Thanks again for your help!! Lloyd VE3ERQ --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com, Gary Hoff k7ney...@... wrote

Re: [Repeater-Builder] Re: wp-639 -- How far should I expect to move the invar rods?

2009-07-19 Thread Gary Hoff
Joe is correct, if you're going to try an tune it without the proper test equipment, you will not get it perfect. It may work, but not as well as it could. Early in my career, I was able to tune a duplexer with a couple HT's, one for xmit and one for receive, but I found I needed a step

Re: [Repeater-Builder] wp-639 rexolite

2009-07-19 Thread Gary Hoff
I have in face tuned a WP-639 and would guess for that freq swing from 146.97 to 146.88 it will be very little movement of the rod assuming the pass tuning is correct. Remember, the rexolite rod is tuning the notch and that notch is relative to the pass setting of the invar rod. It is extremely

Re: [Repeater-Builder] Re: MASTR II PTT

2009-04-18 Thread Gary Hoff
Is this the serial port or the parallel port on the computer that you are using? The serial port I always thought met RS-232 standards which swung from positive to negative. I used to use a RS232 to TTL logic converter back in the good old days to convert the signals but it was a commercial

Re: [Repeater-Builder] Sinclair Q2220E

2009-03-23 Thread Gary Hoff
I did use one on 2 meters however never was able to get more than about 65Db Isolation. Worked OK as long as we kept the transmitter power low. Gary - K7NEY Terry wrote: Does anyone have experience using this model on 2 meters? Do they provide enough practical isolation for single antenna,

Re: [Repeater-Builder] Re: Help with intermod between repeaters.

2009-02-15 Thread Gary Hoff
This is one of the toughest intermod products to solve. 2 transmitters 600 kHz apart generate spurs every 600 kHz on both sides of each transmitter. When we were co-ordinating repeaters, it's one parameter we always looked at, and tried to keep nearby repeaters off of that 600 KHZ separation

Re: [Repeater-Builder] Re: Help with intermod between repeaters.

2009-02-15 Thread Gary Hoff
...@verizon.net wrote: well said - Original Message - *From:* Gary Hoff mailto:k7ney...@q.com *To:* Repeater-Builder@yahoogroups.com mailto:Repeater-Builder@yahoogroups.com *Sent:* Sunday, February 15, 2009 10:33 AM *Subject:* Re: [Repeater-Builder] Re: Help

Re: [Repeater-Builder] GE Nomenclature

2008-11-11 Thread Gary Hoff
Check the Doug Hall web site for nomenclature breakdown. The 66 is VHF High split, but I don't remember the rest of the number without looking. Gary - K7NEY - Original Message - From: Ian Miller To: Repeater-Builder@yahoogroups.com Sent: Tuesday, November 11, 2008 11:48 AM

Re: [Repeater-Builder] GE Nomenclature

2008-11-11 Thread Gary Hoff
Here's the link to Hall Electronics, Exec II nomenclature. http://www.hallelectronics.com/getech/053.htm Gary - K7NEY - Original Message - From: Ian Miller To: Repeater-Builder@yahoogroups.com Sent: Tuesday, November 11, 2008 11:48 AM Subject: [Repeater-Builder] GE

Re: [Repeater-Builder] Scanner as repeater receiver?

2008-08-12 Thread Gary Hoff
Most scanners have an extremely broad front-end and as such would be extremely sensitive to de-sense. Hook it up and let it receive a signal and then key a transmitter next to it and see what happens. Gary - K7NEY - Original Message - From: jstechnicalservice To:

Re: [Repeater-Builder] IFR 1100S

2007-12-13 Thread Gary Hoff
diodes or filter caps in the power supply itself Gary - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, December 13, 2007 7:25 PM Subject: [Repeater-Builder] IFR 1100S OK. I have the 1100S with the bad supply in my hands.

Re: [Repeater-Builder] Failed MastrII

2007-10-19 Thread Gary Hoff
The Part Number stamped into the casting is 19E500952 Anybody got one? Thanks, Gary - K7NEY - Original Message - From: Gary Hoff To: Repeater-Builder@yahoogroups.com Sent: Thursday, October 18, 2007 10:17 AM Subject: Re: [Repeater-Builder] Failed MastrII He'll make

Re: [Repeater-Builder] Failed MastrII

2007-10-18 Thread Gary Hoff
On Oct 17, 2007, at 8:57 PM, Gary Hoff wrote: Buddy of mine has lost the amplifier section of his MASTR II repeater. Need a base station transmitter or in worse case a Mobile transmitter complete. This is a high band unit presently on 147.2. Anybody have one laying around

[Repeater-Builder] Failed MastrII

2007-10-17 Thread Gary Hoff
Buddy of mine has lost the amplifier section of his MASTR II repeater. Need a base station transmitter or in worse case a Mobile transmitter complete. This is a high band unit presently on 147.2. Anybody have one laying around that is surplus to your needs? Gary - K7NEY

Re: [Repeater-Builder] astron rs 35a

2007-02-28 Thread Gary Hoff
Pass transistors are the usual culprit. Gary k7ney - Original Message - From: mike To: Repeater-Builder@yahoogroups.com Sent: Wednesday, February 28, 2007 5:17 PM Subject: [Repeater-Builder] astron rs 35a my power supply keeps blowing the fuse changed the pc board i

Re: [Repeater-Builder] RE: Don't miss it

2006-04-03 Thread Gary Hoff
Boy, what math skills 2007 is 1 year 100 years is 2106 and it'ss happen every century after that too. Gary - Original Message - From: hq54 [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, April 03, 2006 1:28 PM Subject: Re: [Repeater-Builder] RE: Don't miss it Nope,

Re: [Repeater-Builder] RC-10

2005-12-02 Thread Gary Hoff
MCC has a web site http://home.earthlink.net/~mccrpt/ and there is also a yahoo group for MCC controllers. Maybe you can get some help there. I have a RC-100 but never seen a RC-10 Gary - K7NEY - Original Message - From: J. G. Adams, Jr [EMAIL PROTECTED] To:

Re: [Repeater-Builder] IFR 1200/A Service Monitor

2005-06-22 Thread Gary Hoff
I've not found a way on the 1600 to do that, I think they are similar. The 1600 will measure the difference between the signal and the oscillator setting but you have to know approximately what the signal is you're trying to measure before it works. Gary - K7NEY - Original Message - From:

Re: [Repeater-Builder] duplexer tuning - help

2005-04-15 Thread Gary Hoff
Not in Indiana, but a comment. I Used one of those Duplexers years ago. Be careful where you locate it. Extremely sensitive to temperature variations. We had it on a mountaintop and retired it after the first winter. Gary - K7NEY - Original Message - From: Paul [EMAIL PROTECTED] To:

Re: [Repeater-Builder] Re: New poll for Repeater-Builder (member checkout)

2005-03-25 Thread Gary Hoff
I agree with Skip. It seems that because people have a different opinion of the word build, it is an extreme overreaction. Nothing Russ ever posted offended me, If I didn't agree, I just deleted. Don't know why everyone else can't do likewise Gary - K7NEY - Original Message -

Re: [Repeater-Builder] Duplexer Loss Question

2005-03-22 Thread Gary Hoff
db = 10 Log(P-out / P in) According to my slide rule, P out / P in would be about .707 for 1.5 db .707 X 150 = 106 watts Somebody correct me if I'm wrong. Gary - K7NEY - Original Message - From: w9mwq [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 22,

Re: [Repeater-Builder] Spectrum Analyzer

2005-03-22 Thread Gary Hoff
I used to tune them that way also, and thought I did well, but after I got access to a Spectrum Analyzer with tracking generator, I find it much easier and more accurate. Maybe because the pattern is visual when you are tuning with the tracking generator and analyzer. I've taken duplexers

Re: [Repeater-Builder] linking contrrolers

2005-03-14 Thread Gary Hoff
Any 2 port controller one at each end, I think all of the controller makers offer a 2 port controller. Link RLC-1, CAT series has one, I have a MCC RCC-100 that will do that. Do a google on Repeater controllers and you'll get a bunch of options. Gary - K7NEY - Original Message -

Re: [Repeater-Builder] Help with Duplexer ID

2005-03-11 Thread Gary Hoff
Diameter of the cavity doesn't necessarily determine frequency. the following link might help. http://www.emrcorp.com/images/tech_papers/tech_cover/antenna_duplexors(15-26).pdf Gary - K7NEY - Original Message - From: Joe [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent:

Re: [Repeater-Builder] Duplexer Retuning TXRX 28-37-02A Help

2005-03-10 Thread Gary Hoff
If the Service monitor has a tracking generator in addition to the spectrum analyzer, look on the repeater builder web site for an article on tuning the Wacom Duplexer, think it was a 641, and it shows you how to hook it up and everything. Same philosophy applies regardless of the type of

Re: [Repeater-Builder] Going got Rough, Forced to change Freq, Need Answers

2005-02-24 Thread Gary Hoff
Mathew, As a former freq coordinator myself, it seems to me that this is a completely illogical situation unless there is something I don't know. If both repeaters were properly coordinated in the first place, and there is interference from a user of one getting into the input of the

Re: [Repeater-Builder] 900 mhz pa equip

2004-05-20 Thread Gary Hoff
Don't know if this'll help but there has been a seller on Ebay selling complete 300 watt Purc 5000 transmitters and he's down to $329.00 for the whole unit and isn't getting any bids. Gary-K7NEY - Original Message - From: Larry Williams [EMAIL PROTECTED] To:

Re: [Repeater-Builder] Help on Interference

2004-04-27 Thread Gary Hoff
Steve's suggestion s are good. We had similar problems in California with 15 Khz splits particularly when the user of the adjacent channel was a bit off frequency. It is most likely the user getting into your machine and not the repeater unless there is some kind of mixing going on. PL (CTCSS)

Re: [Repeater-Builder] Re: cor logic circuit thoughts

2004-04-02 Thread Gary Hoff
to approximate reference for 1 V P-P audio? Pin 3 : Audio input Pin 4 : Gnd Pin 6 : + Vdc COR output Pin 7 : + 12 Vdc in And reverse pins 2 and 3 if output swings the wrong way. Thanks Gary! Brendan --- In Repeater-Builder@yahoogroups.com, Gary Hoff [EMAIL PROTECTED] wrote: Boy, maybe I'm wrong

[Repeater-Builder] Re: cor logic circuit thoughts

2004-04-01 Thread Gary Hoff
Boy, maybe I'm wrong but it sure seems like this is being made more complicated than it should be. Use a 741 or equiv. Op Amp as a DC voltage comparator. Establish a reference voltage on the + input with a pot or a couple resistors as a voltage divider. Attach the voltage that is swinging