Re: [Repeater-Builder] Test
They're being intercepted and screened by ebay before posting. - Original Message - From: kc8gpd To: Repeater-Builder@yahoogroups.com Sent: Wednesday, March 17, 2010 1:06 PM Subject: [Repeater-Builder] Test seems to be a long delay between posting messages and them showing up.
RE: [Repeater-Builder] Test
Did you send it via e-check? Sorry, my bad Kb0wlf > -Original Message- > From: Repeater-Builder@yahoogroups.com [mailto:Repeater- > buil...@yahoogroups.com] On Behalf Of kc8gpd > Sent: Wednesday, March 17, 2010 2:06 PM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] Test > > seems to be a long delay between posting messages and them showing up. > > > > > > > > Yahoo! Groups Links > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.436 / Virus Database: 271.1.1/2734 - Release Date: > 03/17/10 07:33:00
Re: [Repeater-Builder] test
RX clear as mud. :-) John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn - Original Message - From: Don Kupferschmidt To: Repeater-Builder@yahoogroups.com Sent: Tuesday, May 04, 2010 10:48 AM Subject: [Repeater-Builder] test Test email. Having some issues with Yahoo Groups sending messages. Don, KD9PT
Re: [Repeater-Builder] test
You are full quieting. Chuck WB2EDV - Original Message - From: "Gary Schafer" <[EMAIL PROTECTED]> To: Sent: Saturday, June 30, 2007 8:23 PM Subject: [Repeater-Builder] test > > > > > > > > > Yahoo! Groups Links > > > >
Re: [Repeater-Builder] test
And I forgot to study.. Maire-Radios wrote: test?
Re: [Repeater-Builder] test
Urine Test? - Original Message From: rman <[EMAIL PROTECTED]> To: Repeater-Builder@yahoogroups.com Sent: Sunday, August 5, 2007 8:33:31 AM Subject: Re: [Repeater-Builder] test And I forgot to study.. Maire-Radios wrote: test? Building a website is a piece of cake. Yahoo! Small Business gives you all the tools to get online. http://smallbusiness.yahoo.com/webhosting
Re: [Repeater-Builder] test
6,756,867,234,967.84562936502648 If my Calculation is Correct.
Re: [Repeater-Builder] test
The answer to B is 2.9979250 x 10^8 M/s, C is 2.718281828459045, and D is 3.1415926535898.. ;-) - Original Message - From: Ham-Radio To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 07, 2007 8:29 PM Subject: Re: [Repeater-Builder] test 6,756,867,234,967.84562936502648 If my Calculation is Correct.
Re: [Repeater-Builder] TEST
On Jul 26, 2008, at 3:33 PM, Michael Ryan wrote: > This is a test message. I joined this wonderful group but my > messages have been deemed fit for posting it appears. -Mike > I think you meant to say "have NOT been deemed fit for posting", as a complaint but your messages (all three of them) came through fine. Depending on the mode you're configured in, YahooGroups doesn't always bounce back your own messages to yourself -- and even when it does, things show up at strange times for everyone on the list. It's a free service, "whatcha-gonna-do"? Give it a few days. If there's someone in Florida who can help you, they'll answer. You might provide more detail, like whether the project is ham or commercial (I guess we can assume ham from the 220 MHz thing) and whether or not you already have a coordinated repeater pair and working repeater, etc... But in general -- finding another repeater person there in Florida shouldn't be too hard. Key up a local repeater (preferrably 220 since 220 enthusiasts often are more prone to being willing to help one another), copy the callsign, and look the owner/operator up. If they got theirs going, they probably can tell you who tuned up their duplexer and/or put you in touch with that person, right? It's probably them, in many cases. Buy 'em beer, be nice to 'em... they will probably say "Come on over", if you sound like the duplexer tuning is all they're going to need to do. If you sound clueless about repeaters, they're going to be wary. Just be honest up-front with them if you don't know what you're doing, and it'll go better. Enthusiasm may not be something they have much of anymore, or they might be the superhero of local repeater help, you just can't tell. But with a callsign, at least it's not a cold call to someone... you know they have a working (220) repeater. There's also always the "commercial" option... a local 2-way shop or similar... Okay, lots of options. Don't worry -- your message got through, let's see if anyone can help in your area, then go from there... -- Nate Duehr, WY0X [EMAIL PROTECTED]
RE: [Repeater-Builder] TEST
Nate ( and all ), Thanks for the welcome. I guess to say that my frustration is/was apparent. It has nothing to do with this reflector but on some outside / other issues. Sorry if that crept into view. I opted to join the reflector and get some help on 'one' of these issues.I have noted a fair amount of info being passed in just the first couple of days of being on. Nothing specifically pertinent to me but it is great to see so much info and suggestions. That's what you want to see. Anyway, thanks for the hello and the chill pill. - Mike From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Nate Duehr Sent: Sunday, July 27, 2008 2:26 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] TEST On Jul 26, 2008, at 3:33 PM, Michael Ryan wrote: > This is a test message. I joined this wonderful group but my > messages have been deemed fit for posting it appears. -Mike > I think you meant to say "have NOT been deemed fit for posting", as a complaint but your messages (all three of them) came through fine. Depending on the mode you're configured in, YahooGroups doesn't always bounce back your own messages to yourself -- and even when it does, things show up at strange times for everyone on the list. It's a free service, "whatcha-gonna-do"? Give it a few days. If there's someone in Florida who can help you, they'll answer. You might provide more detail, like whether the project is ham or commercial (I guess we can assume ham from the 220 MHz thing) and whether or not you already have a coordinated repeater pair and working repeater, etc... But in general -- finding another repeater person there in Florida shouldn't be too hard. Key up a local repeater (preferrably 220 since 220 enthusiasts often are more prone to being willing to help one another), copy the callsign, and look the owner/operator up. If they got theirs going, they probably can tell you who tuned up their duplexer and/or put you in touch with that person, right? It's probably them, in many cases. Buy 'em beer, be nice to 'em... they will probably say "Come on over", if you sound like the duplexer tuning is all they're going to need to do. If you sound clueless about repeaters, they're going to be wary. Just be honest up-front with them if you don't know what you're doing, and it'll go better. Enthusiasm may not be something they have much of anymore, or they might be the superhero of local repeater help, you just can't tell. But with a callsign, at least it's not a cold call to someone... you know they have a working (220) repeater. There's also always the "commercial" option... a local 2-way shop or similar... Okay, lots of options. Don't worry -- your message got through, let's see if anyone can help in your area, then go from there... -- Nate Duehr, WY0X [EMAIL PROTECTED] <mailto:nate%40natetech.com> __ NOD32 3300 (20080725) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com
Re: [Repeater-Builder] Test measurements
stanleyradio wrote: >Hi all, > > I am trying to tune up my duplexed E.F. Johnson PPl 6060 on the >440 band. There are some directions on the repeater-builder site >that dictate measuring the oscillator voltages with an analog >voltmeter. I should be trying to measure AC voltage, right? > No, DC voltages > Also, it seems that when I try to use my improvised signal >generator (handheld radio) anywhere near my voltmeter its readings >fluctuate all over the scale. What am I doing wrong, or does my >voltmeter just suck? > Once you switch to DC, your fluctuations should be at a minimum. Kevin Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Test measurements
Dayne, No, the majority of voltage readings taken during alignment are DC, and should be made with a high-impedance DVM or VTVM. The only AC measurements needed are for squelch setting. This info comes from my PPL-6060 service manual. Most DVMs don't function well in a high RF field, so keep your handheld radio away from it while taking readings. 73, Eric Lemmon WB6FLY stanleyradio wrote: > > Hi all, > >I am trying to tune up my duplexed E.F. Johnson PPl 6060 on the > 440 band. There are some directions on the repeater-builder site > that dictate measuring the oscillator voltages with an analog > voltmeter. I should be trying to measure AC voltage, right? > > Also, it seems that when I try to use my improvised signal > generator (handheld radio) anywhere near my voltmeter its readings > fluctuate all over the scale. What am I doing wrong, or does my > voltmeter just suck? > > Thanks, > Dayne Olmstead > KD7JAH > > > Yahoo! Groups Links > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Test measurements
One trick on setting up a RX using a improvised sig gen... After the receiver is tuned into the neighborhood, don't use the TX in the handheld. Look up in your owners manual and find out what the radio uses for the high IF and calculate what frequency you'd punch into the RX to place the local oscillator right on the frequency of interest. Then use the LO as a source for the final tuning. You may have to use a scanner if your handheld won't go there. Mike WA6ILQ At 10:44 AM 10/10/04, you wrote: >Dayne, > >No, the majority of voltage readings taken during alignment are DC, and >should be made with a high-impedance DVM or VTVM. The only AC >measurements needed are for squelch setting. This info comes from my >PPL-6060 service manual. > >Most DVMs don't function well in a high RF field, so keep your handheld >radio away from it while taking readings. > >73, Eric Lemmon WB6FLY > >stanleyradio wrote: > > > > Hi all, > > > >I am trying to tune up my duplexed E.F. Johnson PPl 6060 on the > > 440 band. There are some directions on the repeater-builder site > > that dictate measuring the oscillator voltages with an analog > > voltmeter. I should be trying to measure AC voltage, right? > > > > Also, it seems that when I try to use my improvised signal > > generator (handheld radio) anywhere near my voltmeter its readings > > fluctuate all over the scale. What am I doing wrong, or does my > > voltmeter just suck? > > > > Thanks, > > Dayne Olmstead > > KD7JAH Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] test equipment parts
thank you very much i will chase them up ian - Original Message - From: "Ted Bleiman K9MDM - MDM Radio" <[EMAIL PROTECTED]> To: Sent: Wednesday, December 31, 2003 2:00 AM Subject: [Repeater-Builder] test equipment parts > there are several used test equipment dealers > maire company in canada > valuetronics in elgin il > us surplus in ellicott city , md > feitek in st louis mo > auburn electronics in KY > plus a google earch will uncover 100 more who might be > able to help. parts for OLD stuff like this are going > to be hard to find. better to purchase a new plugin or > possibly a defective one and cabnababaalnize it for > the switch. goo dluck > and happyt new year ...mdm > --- ian wells <[EMAIL PROTECTED]> wrote: > > hi eric > > when i do a search only two test equipment groups > > come up the hp one and > > test equipment market place > > is there any others > > thanks ian > > - Original Message - > > From: "Eric Lemmon" <[EMAIL PROTECTED]> > > To: > > Sent: Tuesday, December 30, 2003 11:22 AM > > Subject: Re: [Repeater-Builder] HP8558B Switches > > > > > > > Ian, > > > > > > This post would probably get a better response if > > it were posted on the > > > Test Equipment Groups list. > > > > > > 73, Eric Lemmon WB6FLY > > > > > > Ian Wells wrote: > > > > > > > Would anyone know where I can obtain the rotary > > switches on the front > > > panel of a HP8558B plugin? > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > To visit your group on the web, go to: > > > http://groups.yahoo.com/group/Repeater-Builder/ > > > > > > To unsubscribe from this group, send an email to: > > > [EMAIL PROTECTED] > > > > > > Your use of Yahoo! Groups is subject to: > > > http://docs.yahoo.com/info/terms/ > > > > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > To visit your group on the web, go to: > > http://groups.yahoo.com/group/Repeater-Builder/ > > > > To unsubscribe from this group, send an email to: > > [EMAIL PROTECTED] > > > > Your use of Yahoo! Groups is subject to: > > http://docs.yahoo.com/info/terms/ > > > > > > > = > Ted Bleiman K9MDM -just tired > MDM Radio Ltd > 1629-B N. 31 st Ave > Melrose Park, IL 60160 > 708.681.0300 fax 708.681.9800 > email [EMAIL PROTECTED] > web http://www.mdmradio.com > > __ > Do you Yahoo!? > Find out what made the Top Yahoo! Searches of 2003 > http://search.yahoo.com/top2003 > > > > > > Yahoo! Groups Links > > To visit your group on the web, go to: > http://groups.yahoo.com/group/Repeater-Builder/ > > To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to: > http://docs.yahoo.com/info/terms/ > > Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] test equipment theft
There is a Mot 2670 monitor for sale on flea bay right now in central NJ but can't read s/n in listing. The item number is 230313035399. Mike --- - Original Message - From: kk2ed To: Repeater-Builder@yahoogroups.com Sent: Monday, December 08, 2008 10:35 PM Subject: [Repeater-Builder] test equipment theft To all list members - Please keep a close eye out for the following items which were stolen from my work vehicle this past Wednesday evening 12/3/08 in central NJ: Motorola R2670A service monitor, SN496KWN0084 Bird 43 wattmeter in case with 5 900MHz range slugs Bird 43 wattmeter # 2 in case with 5 VHF & UHF range slugs Dell laptop computer with Sprint wireless card, USB drives, etc, all inside a Targus leather laptop case Old (otherwise worthless) Epson 386 laptop loaded with RSS software, and a Motorola RIB with cables, all inside a Targus canvas laptop case DeWalt cordless drill Craftsman 3/8 power drill Craftsman 200pc socket set Misc bit and driver sets And a few other Sony DSC-S750 digital camera in Sony soft case Magellan Roadmate 1412 GPS receiver with bracket/cord Plus a few other items. A $500 reward is being offered for any information which leads to an arrest of the responsible perpetrator(s). There were a few witnesses to the crime, but they didn't think anything of it at the time. Amazing! What a hell of a way to start the Christmas holiday! Thanks for your attention. 73 Eric KE2D 609-713-3742
Re: [Repeater-Builder] Test equipment for sale
Anyone had any luck in contacting this guy? Ken At 06:08 PM 3/7/2005 -, you wrote: Here are a couple more items I dug up for sale. > > >Tektronics 2246 4 channel 100MHZ Ocilloscope >manual, cover, and 2 probes included. >It has been tested and is in good working order. > >$200 plus $20 for shipping charges > > > >Bird Thruline model 43 wattmeter with hard case >included are 4 slugs >250watt 2-30MHZ >100watt 100-250MHZ >100watt 400-1000MHZ >50watt 25-60MHZ >comes in a foam lined plastic hard case >works well > >$200 plus $10 for shipping charges > > > >Cushman CE-50A/TG communications monitor >This is a white face model >operational up to 999MHZ >frequency generator >ocilloscope >tracking generator >many many more features! >This unit has a couple of minor issues. >the internal battery is dead, not leaking, just dead >the power supply has a temp issue. When its exposed to cold temps, it >will not power up. At 40-50 degrees and above, it is fine and works >like it should. Would be great for benchtop use. >included is the manual, some cables, the front lid and the power cord > >$275 plus $25 for shipping charges > > > > >I have a Fluke handheld industrial scope meter, model 123 in a >plastic hard case with manuals, probes, adapters, leads, charger and >more. I'm not sure if I should part with this unit since it is quite >handy. If someone gives me $650(FIRM) for it, I guess I could part >with this neat little scope. > > >I prefer Paypal online payments, but I also accept money orders. As >an added bonus, I'll ship the items for free if Paypal is used for >payment. All shipping amounts listed are to contenental United States >addresses only. > >contact me at [EMAIL PROTECTED] > >Thank you > >RJ > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Test equipment for sale
I sent him an e-mail saying I would buy one thing & we agreed to a paypal transaction. Then I e-mailed asking his callsign & he never replied. Until I hear his callsign, I'm not sending any money. -- Original Message -- Received: Sat, 12 Mar 2005 11:35:58 AM CST From: Ken Arck <[EMAIL PROTECTED]> To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Test equipment for sale > > Anyone had any luck in contacting this guy? > > Ken > > > At 06:08 PM 3/7/2005 -, you wrote: > Here are a couple more items I dug up for sale. > > > > > >Tektronics 2246 4 channel 100MHZ Ocilloscope > >manual, cover, and 2 probes included. > >It has been tested and is in good working order. > > > >$200 plus $20 for shipping charges > > > > > > > >Bird Thruline model 43 wattmeter with hard case > >included are 4 slugs > >250watt 2-30MHZ > >100watt 100-250MHZ > >100watt 400-1000MHZ > >50watt 25-60MHZ > >comes in a foam lined plastic hard case > >works well > > > >$200 plus $10 for shipping charges > > > > > > > >Cushman CE-50A/TG communications monitor > >This is a white face model > >operational up to 999MHZ > >frequency generator > >ocilloscope > >tracking generator > >many many more features! > >This unit has a couple of minor issues. > >the internal battery is dead, not leaking, just dead > >the power supply has a temp issue. When its exposed to cold temps, it > >will not power up. At 40-50 degrees and above, it is fine and works > >like it should. Would be great for benchtop use. > >included is the manual, some cables, the front lid and the power cord > > > >$275 plus $25 for shipping charges > > > > > > > > > >I have a Fluke handheld industrial scope meter, model 123 in a > >plastic hard case with manuals, probes, adapters, leads, charger and > >more. I'm not sure if I should part with this unit since it is quite > >handy. If someone gives me $650(FIRM) for it, I guess I could part > >with this neat little scope. > > > > > >I prefer Paypal online payments, but I also accept money orders. As > >an added bonus, I'll ship the items for free if Paypal is used for > >payment. All shipping amounts listed are to contenental United States > >addresses only. > > > >contact me at [EMAIL PROTECTED] > > > >Thank you > > > >RJ > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > -- > President and CTO - Arcom Communications > Makers of state-of-the-art repeater controllers and accessories. > http://www.ah6le.net/arcom/index.html > We now offer complete Kenwood TKR repeater packages! > AH6LE/R - IRLP Node 3000 > http://www.irlp.net > > > > > > Yahoo! Groups Links > > > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Test equipment for sale
At 06:08 PM 3/7/2005 -, you wrote: >Tektronics 2246 4 channel 100MHZ Ocilloscope >manual, cover, and 2 probes included. >It has been tested and is in good working order. <---This "ad", posted by "frase_0174" <[EMAIL PROTECTED]>, is most definately bogus, as it the poster. It appears to be a case of identity theft and, according to a phone conversation I just had, has been turned over to Yahoo, PayPal and local law enforcement. Just in case anyone had any doubt :-) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Test rig for cable length at velocity
Try measuring a shorted coax. On Fri, Feb 5, 2010 at 7:20 PM, Kris Kirby wrote: > > Hi all, > > I've been trying to figure out how, using relatively simple equipment, > to determine proper cable length for one-quarter wavelength cables of a > given type of cable (i.e.: RG-400). One of my thoughts was to measure > the open circuit resistance using an older MFJ-259, however this results > in strangely low impedances that I believe hamper proper readings. > > Basically, I'm trying to figure out if I need to cut the cable shorter > or if it's too short, and right now nothing I have gives me any clue as > to exactly where it is, short of transmitting a few watts and watching > the SWR as I change frequency. > > > > -- > Kris Kirby, KE4AHR > Disinformation Analyst > > > > > > > Yahoo! Groups Links > > > >
RE: [Repeater-Builder] Test rig for cable length at velocity
Ever heard of a grid dip oscillator ? google gdo usgage To: Repeater-Builder@yahoogroups.com From: k...@catonic.us Date: Fri, 5 Feb 2010 20:20:56 -0600 Subject: [Repeater-Builder] Test rig for cable length at velocity Hi all, I've been trying to figure out how, using relatively simple equipment, to determine proper cable length for one-quarter wavelength cables of a given type of cable (i.e.: RG-400). One of my thoughts was to measure the open circuit resistance using an older MFJ-259, however this results in strangely low impedances that I believe hamper proper readings. Basically, I'm trying to figure out if I need to cut the cable shorter or if it's too short, and right now nothing I have gives me any clue as to exactly where it is, short of transmitting a few watts and watching the SWR as I change frequency. -- Kris Kirby, KE4AHR Disinformation Analyst _ Search for properties that match your lifestyle! Start searching NOW! http://clk.atdmt.com/NMN/go/157631292/direct/01/
Re: [Repeater-Builder] Test rig for cable length at velocity
Try this... First get the 1/4 wave length in free space for your frequency from this link: http://www.csgnetwork.com/freqwavelengthcalc.html Then multiply by the velocity factor of the cable you are using which should get you really close to what you want. For example 146.000 MHz = 20.21917808219178 inches X .695 for RG-400 = 14.0523287671232871 inches for 1/4 wave. 14.052 Inches of RG-400 should be very close to a 1/4 wave @ 146.000 MHz. I used this method to make some 1/4 wave jumpers using Andrew FSJ2-50B and when we checked the cables with a very expensive piece of test gear I was only 2 degrees off from a perfect 1/4 wave on my frequency. CABLE VF RG-8 .66 LMR-400 .85 RG-8X .84 RG-11 .75 RG-58 .66 LMR-195 .83 RG-59 .82 RG-62 .84 RG-174 .66 RG-213 .66 RG-214 .66 RG-217 .66 RG-218 .66 RG-316 .79 RG-400 .695 LMR-500 .85 LMR-600 .86 1/2 HARD .81 7/8 HARD .81 LDF all ver .88 - Original Message - From: DCFluX To: Repeater-Builder@yahoogroups.com Sent: Friday, February 05, 2010 9:23 PM Subject: Re: [Repeater-Builder] Test rig for cable length at velocity Try measuring a shorted coax. On Fri, Feb 5, 2010 at 7:20 PM, Kris Kirby wrote: > > Hi all, > > I've been trying to figure out how, using relatively simple equipment, > to determine proper cable length for one-quarter wavelength cables of a > given type of cable (i.e.: RG-400). One of my thoughts was to measure > the open circuit resistance using an older MFJ-259, however this results > in strangely low impedances that I believe hamper proper readings. > > Basically, I'm trying to figure out if I need to cut the cable shorter > or if it's too short, and right now nothing I have gives me any clue as > to exactly where it is, short of transmitting a few watts and watching > the SWR as I change frequency. > > > > -- > Kris Kirby, KE4AHR > Disinformation Analyst > > > > > > > Yahoo! Groups Links > > > >
