Re: [Repeater-Builder] Re: A PreAmp war story

2007-05-04 Thread Larry Rappaport
skipp025 wrote: At one location I had an ongoing problem with gasfet preamp failures. Over time I suspected the failures were done on purpose (yeah people do those sort of things). . I replaced the last blown preamp with a similar spec unit that contained internal rf bypass switching

[Repeater-Builder] Power Amplifier Info Needed

2007-05-04 Thread jay_kruckenberg
Does anyone have any info on a TPL PA3-1FE power amplifier. I have one that I need to put on our local amateur radio repeater but it needs to be tuned down to our repeater frequency. I am looking for the tuning procedure on how to tune this unit. Thanks Jay

[Repeater-Builder] Re: 3 minute timeout. FCC regulation or myth

2007-05-04 Thread Sam
I have the TOT in all my radios set at 30 seconds and building a 2 meter rptr that will be no more than 120 seconds, no reason in my mind to talk more than 2 minutes without releasing the PTT. --- In Repeater-Builder@yahoogroups.com, Jim B. [EMAIL PROTECTED] wrote: Bill Powell wrote: (b)

[Repeater-Builder] Re: A PreAmp war story

2007-05-04 Thread skipp025
[EMAIL PROTECTED] wrote: Window filters are nice but not so useful anymore. How do you build a community RX antenna system without a window filter? Multiple cavity filters a la a reverse combiner? Yech! Depends on the locaction and what's going on nearby (and at the site). Sometimes

[Repeater-Builder] Re: A PreAmp war story

2007-05-04 Thread skipp025
Nate Duehr [EMAIL PROTECTED] wrote: Don't blame the land-line linking technology for where morons park their transmitters, please. They're totally unrelated. The links themselves and the idiots that set them up wrong, have nothing to do with the overall groups EchoLink and IRLP. You're

[Repeater-Builder] Re: A PreAmp war story

2007-05-04 Thread skipp025
Hi Larry, When it comes to lightning all bets are off. All you can ever hope to do is protect the equipment with all the proper techniques and devices available. No... in the specific case I mentioned the preamplifier simply goes into normal relay bypass mode when the internal rf detection

Re: [Repeater-Builder] Re: A PreAmp war story

2007-05-04 Thread Kris Kirby
On Fri, 4 May 2007, skipp025 wrote: Then along comes the remote base from hell... nothing like a 45 watt remote base radio on an omni gain antenna to talk to another repeater 32 miles distant (line of sight). 45W? That's light. Another operator and myself once discussed making a remote base

[Repeater-Builder] Re: A PreAmp war story

2007-05-04 Thread Ryan
You can send the preamp back to ARR for about 35.00 they will rebuild and tune to freq. Having over -137dbm for the squelch i would not complain a bit. Ryan n3ssl --- In Repeater-Builder@yahoogroups.com, Kris Kirby [EMAIL PROTECTED] wrote: On Fri, 4 May 2007, skipp025 wrote: Then along

[Repeater-Builder] 2 meter duplexers

2007-05-04 Thread wb2ftx
For those of you thinking about building or upgrading your 2 meter machines, there are several duplexers listed now on Ebay that will handle a 0.6 MHZ separation at resonable cost. Good luck Dave WB2FTX 147.735./147.135 in NNJ.

Re: [Repeater-Builder] Re: 3 minute timeout. FCC regulation or myth

2007-05-04 Thread Bob Dengler
At 5/3/2007 09:46 PM, you wrote: On 5/3/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: BTW, the 3 minute control link failure or heartbeat timer rule is still in Part 97 (97.213b). This is the most ignored rule in Part 97, as virtually no one implements such a control link. The way I read