Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
- Repeater-Builder
- Messages
Search
|
Re: 2M/70CM Repeater
Pete Dulac
I'll tell what we are doing at one of our sites... depending on your power
output. We are using an actual COMET Tri-Plexer for our 2Meter / 220packet / 440link repeater site. And never have any desense or problems with them getting into each other. Maybe that'll work for ya ?? Pete Dulac, KC4WWU 147.285mhz. C.C.A.R.S. President PL 118.8hz ( 2B ) Camden County Sherrif's Dept. / Search & Rescue #1724 ICQ # - 69763 My Homepage: C.C.A.R.S. Homepage: Cinema 6 Homepage: |
|
2M/70CM Repeater
I am putting up a 440 repeater with the 2M (147.300 Brown Co., Indiana) repeater that is already in operation. The 440mc machine will use the same antenna that is going up soon (a GP-9). What is the best way to come off the hardline to get to both sets of cavities? I was thinking of a 3/4 wave section of coax out of a "T" connector to each cavity set. If this is used how critical is the length? HELLLLLLP!!!!!
KA9SWI@... Peter J. Lenges 7658 Hummingbird Dr. Nineveh, In.46164 |
|
Re: How do Decibel Products low band duplexers work?
John Hackman
The helical resonator/stub lowband duplexers work ... but that's about all
toggle quoted message
Show quoted text
you can say about them. It is real easy to end up with almost zero transmitter power out to the antenna and a nice, toasty warm duplexer, particularly with 250-400 watt Micor repeaters. They also provide ZERO isolation from interference and intermod-producing signals coming down the antenna line. 30-50 MHz cavities are not real common but can be found - 2 or 3 of those will make a very nice duplexer. TX-RX and Wacom also produce cavity duplexers. Or you can shop the spring garage sales for used hot water heaters and build your own! ......John WB4VVA -----Original Message-----
From: Ed Bathgate, RMA Repair Dept x8785 <ed@...> To: Repeater-builder@... <Repeater-builder@...> Date: Thursday, March 18, 1999 9:14 AM Subject: [Repeater-builder] How do Decibel Products low band duplexers work? From: "Ed Bathgate, RMA Repair Dept x8785" <ed@...> |
|
Re: How do Decibel Products low band duplexers work?
Tedd Doda
Hi Ed:
On Thu, 18 Mar 1999 09:13:37 -0500, Ed Bathgate, RMA Repair Dept x8785 wrote: Ok, can I build a similar device?Probably, as the inside is simple, but look around for a used one. As more and more government/business's get away from the low band, they will become easier to find. How can they get a small can to do 6 meters?Ah...the wonders of helical resonators! You have to remember that these "cans" can only be set up for NOTCHING a frequency, and not PASSING a frequency. Look at any good commercial 2 meter or UHF radio. The small square blocks near the antenna are helical resonators. What is inside the 'paint cans'?A coil of wire (the helix) and a plunger on a threaded rod which tunes the helix to the frequency of choice. I already know of the heliax stub duplexer design...Most of the heliax stubs are 1/4 wave length long, and do basically the same as a helical resonator. The shorted and opened stubs are there for usually the "C" part of the "LC" circuit (creating the "50 ohm" in/out). Tedd Doda CET packet va3sed@va3sed e-mail lazer@... |
|
How do Decibel Products low band duplexers work?
Ed Bathgate, RMA Repair Dept x8785
I was researching 6 meter band antennas & duplexers, and came across
Decibel Products. They have a design of a duplexer that can do a .5mhz split and its only 30" high. It uses what appears to be 6 tunable paint cans, (???!) and several sets of tuned length coax lines and several coax stubs. I have rebuilt and re tuned a hybrid ring duplexer for 2m, and old sinclair, that looked like 4 scuba tanks and a whole lot of coax. I was intrigued by their design, until I called them and got the $2300 price! Yeowza!! Ok, can I build a similar device? How can they get a small can to do 6 meters? What is inside the 'paint cans'? I already know of the heliax stub duplexer design... I know a fellow who was selling his, it does not work well according to him. I know where I can get paint cans cheap... 73 Ed N3SDO Ed Bathgate RMA Dept (724) 772-8785 pager (412) 649-6773 |
|
Re: Voting System
Adam C. Feuer
First I've seen of the LDG Voter. I use Spectratac and GE. Will this voter
toggle quoted message
Show quoted text
work with Status Tone Receivers ?? Adam N2LKV Afeuer@... -----Original Message-----
From: w7ntf@... [mailto:w7ntf@...] Sent: Wednesday, March 17, 1999 19:05 To: Repeater-builder@... Subject: [Repeater-builder] Re: Voting System From: w7ntf@... Try this URL: LDG has a very spiffy voter which can be stacked to get more ports if necessary. Good luck! 73, de Gary, W7NTF ------------------------------------------------------------------------ To unsubscribe from this mailing list, or to change your subscription to digest, go to the ONElist web site, at and select the Member Center link from the menu bar on the left. ------------------------------------------------------------------------ This list is sponsored by the owners and users of "RBTIP" |
|
Re: Voting System
Harold Eller
Ken Califf wrote:
HI You got a phone number on the LDG Voter Harold KD4JFN kd4jfn@... |
|
Re: Voting System
Ken Califf
I have an LDG voter I am selling. It is already built in nice rack mount
toggle quoted message
Show quoted text
enclosure with feed thrus on all logic lines in and out of the enclosure. I dont have the necessary sites for using it. I am asking $200 for it complete with manuals. The Lacko's wrote: From: "The Lacko's" <Lacko@...> |
|
Repeater-builder: Why?
I swear, after all the time and grief various people put into repeaters,
between the kerchunkers, the noise bursts, the lids, the fights for space, the audio troubles, the attempts to run things on a shoestring instead of real money, the neat gizmos to hang off the repeater and controller, voters, links, programming controllers, phone patches, having to move for various reasons, co-channel machines and users, (both legit and of the "I'm gonna put a repeater on this pair, go ahead and try and stop me" kind who know better, but don't care to be a good neighbor), the space they take up in your basement/garage/whatever, .... I figured out today why we do this thing called repeaters. It's so we can always have something to play with. Now, granted, right now I'm physically tired out after caffeine -induced insomnia, so it sounds like sour grapes. But tomorrow, it'll be : "The reason we do this thing called repeaters is so that we can always have something to play with!! Yeah!!! Life is great!!!!" Chuk Gleason KB4MDZ |
|
Re: GE model number lookup?
Tedd Doda
On Wed, 17 Mar 1999 10:51:34 -0500, Ray Vaughan wrote:
If you want to compare your model number to the ones for Exec II baseDoes this mean that the "RX" stands for the Exec II? I searched and searched for info on this prefix, but came up empty. I checked your web page (actually it was the first thing I did, hi) when I got the radios, as I thought you had a list of all the different prefixes and their counterpart name. Thanks for the info! Tedd Doda CET packet va3sed@va3sed e-mail lazer@... |
|
Re: GE model number lookup?
Tedd Doda
On Wed, 17 Mar 1999 09:16:07 -0700, John Lloyd wrote:
Sounds correct!Ok, thanks John. It bothered me as all the pictures I've seen of the Exec II's don't match mine. Also, are these things rock bound, or are they PLL'd? I can't see any place to put either rocks, or crystal elements? There seems to be a RX and TX adjustment near something that looks like a VCO. Tedd Doda CET packet va3sed@va3sed e-mail lazer@... |
|
Re: GE model number lookup?
John Lloyd
Ted
toggle quoted message
Show quoted text
Sounds correct! John Lloyd Tedd Doda wrote: From: "Tedd Doda" <lazer@...> |
|
Re: GE model number lookup?
Ray Vaughan
At 09:06 AM 3/17/99 -0500, you wrote:
From: "Tedd Doda" <lazer@...>According to a table I have on my web site, the 33 indicated 42-50 Mhz. So it isn't speced for 6m, but it's real close. I would think the lower in the 6m band the better. The 6 should indicate 38-64 watts. If you want to compare your model number to the ones for Exec II base stations (some codes are in common) go here: Ray, KD4BBM |
|
For Sale : Complete UHF repeater
I have for sale the following repeater system consisting of ;
ACC RC-850 controller with, V 3.8 software Vocabulary expansion option Computer interface Phone patch Hooked to ; ICOM RP-4020 UHF 50 Watt repeater Sinclair labs mod # SD-445-4 duplexer Mounted in a 19" rack, 17"tall Also included is an ACC DVR. Never hooked it up due to limited space. All manuals included $3000 or best offer. E-mail at K6OPJ@... 73 Mark (K6OPJ) |
to navigate to use esc to dismiss