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Re: NVIS Saturday afternoon test
John O. Newell
I think most of your answers would be answered in Feilder's andJim -- Yes, I think we will continue experimenting! Thanks for the reminder. In fact, I have a copy of the book you mentioned, but it had slipped far down in the reading pile. I skimmed it, quite late last night, and will start reading it. It looks very good. Among the points I noticed skimming last night... - the author says that, based on reports from many stations over a number of years, low power stations can confidently expect to succeed with NVIS; the rub is that "low power" is 400w <g> and he says operators of 20w backpack radios often have great difficulty... - the AS2259-type antenna that Keith N1XTK and I were using does indeed, as I had recalled, rate pretty low compared to other types - the author(s) suggest that the best antenna for NVIS may in fact be ye goode olde dipole (or , if the angle is not too great, an inverted Vee) at low fractions to the ground, possibly with a reflector below at a measured distance. If you compare my main antenna to their recommendations, on 40 and 80 it pretty much fills the bill (with the exception of the reflector element). This reminds me of an observation in an article I read recently on NVIS for packet radio, in which someone was quoted as saying that there are a whole lot more NVIS antennas out there than most people suppose! So, more to read -- this book looks like an engaging and profitable read, so thanks to Jim VE3XJ! 73 John Newell KB1FPM |
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Re: N elbow connector problem with FT-817.
Julio
Are you talking aout an N connector or a BNC connector?
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----- Original Message -----
From: Jeffrey Steinberg To: FT817@... Sent: Thursday, June 14, 2001 2:44 AM Subject: [FT817] N elbow connector problem with FT-817. I bought an N connector elbow so that when I use the rubber duck, it stick straight up when the radio is on a table with speaker firing upward. The connector when onto the FT-817 fine, but the rubber duck will not for the life of me go onto the other end of the elbow. Paid $5.00 for this one; thought it was good. Am I doing something wrong or is the tolerance of this antenna too tight for anything but the most on-spec elbow? Anyone else have this problem? Know of a known N elbow source/part number that works? --Jeffrey, K2MIT -----Original Message----- From: Julio [mailto:WB4OOJ@...] Sent: Wednesday, June 13, 2001 6:27 PM To: FT817@... Subject: Re: [FT817] Re: Power Output Thanks for the reply Fred. I've also looked at the LDG meter, looks like I'm 2 meters behind you HI HI. ----- Original Message ----- From: Fred Winter To: FT817@... Sent: Wednesday, June 13, 2001 8:46 PM Subject: [FT817] Re: Power Output --- In FT817@y..., "Julio" <WB4OOJ@A...> wrote: > Fred how do you like the Oak Hills WM-2? Did you get yours as a kit, and does it calibrate easily. I just finished building the Z11 tuner and this is next on my list of projects. > > 73's Julio > ----- Original Message ----- > From: Fred Winter > To: FT817@y... > Sent: Wednesday, June 13, 2001 5:03 PM > Subject: [FT817] Re: Power Output > > > --- In FT817@y..., Elliott <edl@p...> wrote: > > > > > At maximum selected power the output was ~4.5 watts 1.8-7.0 mhz and > ~4.0 watts 10-28 mhz. I have not checked 6 meters, 2m/440. The > power output in the 3 lower power settings was > > proportionally lower, about 20%. > > > > > > > TIA es 72 > > Elliott WA6TLA > > I get exactly the same readings on my Oak Hills WM-2 QRP wattmeter... > > Fred KD7T > I bought my used & already assembled. It is *very* easy to calibrate. Has a calibration procedure/capabailaity built into the unit. You adjust a pot for a specified voltage & three more pots for a fixed output reading. Very easy...takes about two minutes. The unit is well designed and appears to be quite accurate on all three reading scales. (10W, 1W, 100mW) The LDG digital wattmeter looks interesting also! I have yet to try one, but am considering purchasing one. Fred KD7T Yahoo! Groups Sponsor To unsubscribe from this group, send an email to: FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see Please note that your messages and files sent to this group become public domain upon submission and may appear anywhere on the Internet or in print without notice or compensation. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Sponsor To unsubscribe from this group, send an email to: FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see Please note that your messages and files sent to this group become public domain upon submission and may appear anywhere on the Internet or in print without notice or compensation. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Sponsor www. .com.net.org To unsubscribe from this group, send an email to: FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see Please note that your messages and files sent to this group become public domain upon submission and may appear anywhere on the Internet or in print without notice or compensation. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. |
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N elbow connector problem with FT-817.
Jeffrey Steinberg
I bought an N connector elbow so that when I use the rubber duck, it stick
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straight up when the radio is on a table with speaker firing upward. The connector when onto the FT-817 fine, but the rubber duck will not for the life of me go onto the other end of the elbow. Paid $5.00 for this one; thought it was good. Am I doing something wrong or is the tolerance of this antenna too tight for anything but the most on-spec elbow? Anyone else have this problem? Know of a known N elbow source/part number that works? --Jeffrey, K2MIT -----Original Message-----
From: Julio [mailto:WB4OOJ@...] Sent: Wednesday, June 13, 2001 6:27 PM To: FT817@... Subject: Re: [FT817] Re: Power Output Thanks for the reply Fred. I've also looked at the LDG meter, looks like I'm 2 meters behind you HI HI. ----- Original Message ----- From: Fred Winter To: FT817@... Sent: Wednesday, June 13, 2001 8:46 PM Subject: [FT817] Re: Power Output --- In FT817@y..., "Julio" <WB4OOJ@A...> wrote: > Fred how do you like the Oak Hills WM-2? Did you get yours as a kit, and does it calibrate easily. I just finished building the Z11 tuner and this is next on my list of projects. > > 73's Julio > ----- Original Message ----- > From: Fred Winter > To: FT817@y... > Sent: Wednesday, June 13, 2001 5:03 PM > Subject: [FT817] Re: Power Output > > > --- In FT817@y..., Elliott <edl@p...> wrote: > > > > > At maximum selected power the output was ~4.5 watts 1.8-7.0 mhz and > ~4.0 watts 10-28 mhz. I have not checked 6 meters, 2m/440. The > power output in the 3 lower power settings was > > proportionally lower, about 20%. > > > > > > > TIA es 72 > > Elliott WA6TLA > > I get exactly the same readings on my Oak Hills WM-2 QRP wattmeter... > > Fred KD7T > I bought my used & already assembled. It is *very* easy to calibrate. Has a calibration procedure/capabailaity built into the unit. You adjust a pot for a specified voltage & three more pots for a fixed output reading. Very easy...takes about two minutes. The unit is well designed and appears to be quite accurate on all three reading scales. (10W, 1W, 100mW) The LDG digital wattmeter looks interesting also! I have yet to try one, but am considering purchasing one. Fred KD7T Yahoo! Groups Sponsor To unsubscribe from this group, send an email to: FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see Please note that your messages and files sent to this group become public domain upon submission and may appear anywhere on the Internet or in print without notice or compensation. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Sponsor To unsubscribe from this group, send an email to: FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see Please note that your messages and files sent to this group become public domain upon submission and may appear anywhere on the Internet or in print without notice or compensation. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. |
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Re: Counterpoise Kit for ATX Walkabout
Jeffrey Steinberg
Ken,
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Started assembly. I messed one up (I inserted it ok) but the crimp did not hold and the wire came out. So I used the extraction tool and as indicated and twisted and pried the connector off the spring and got it out. Recrimped (came out OK) but it doesn't engage into the powerpole as strongly as before. Did I ruin the spring? Any ideas or do I have to buy some replacements? --jeffrey, K2MIT -----Original Message-----
From: Ken [mailto:kjm@...] Sent: Thursday, June 07, 2001 8:06 AM To: FT817@... Subject: [FT817] Counterpoise Kit for ATX Walkabout Greetings All: The Counterpoise Kits for the ATX Walkabout antennas are being shipped today from Powerwerx. If anyone is interested in the kits final configuration please visit our web site: and scroll down to the Counterpoise Kit. We have been working closely with Dale, W8ABZ who designed the original kit, so it is exactly as he envisioned. Thanks to all who pre-order. We think you will enjoy the final product. 73, ken, KM6YH www.powerwerx.com Yahoo! Groups Sponsor www. To unsubscribe from this group, send an email to: FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. |
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Polls
It's unfortunate that an interesting question gets dumped due to one or two
going off on a tangent. I was keen to see just where many of these radios had turned up and I don't think this poll was less FT817 specific than one of the first regarding the 'tip' for instance. Now it seems we've lost the poll results. (I can't find them on site...) At least this was fresh and new unlike the endless discussion of MP? & ATX? antennas (shouldn't they be in an antenna group....). As many have said before this is a fine medium and group for info regarding our loved little rig. Does it really matter if some-one is general in their descriptions for a general question? As for my 817 in NZ I've had it to the repair twice; once for failed dc socket and once for frying the silicon itty-bits around the socket. The latter to not!! having fused both legs of the lead.... yeah I know. I've had a lot of fun with it as we all have seemed to. As some-one else recently posted I got it for a portable (2nd) rig and all- mode higher frequencies (my first 6m rig/contact) and due to earlier discussion about broad-banding the tx am now intrigued about micro-wave use as well. And so the hobby goes.... All my contacts have been 5w with dipoles (at home) and cover all hf bands (cw) and the world; though not as much of the latter as I would like! :) I was urged by a friend to try building my own filter and he got a couple of the 500hz collins filters to build up as per instructions from early on this list if I remember right. Being a new ham it was a step but a heap of fun. Makes a great difference. An alternative to Yaseu or Inrad... funny more haven't commented on that. As stated many times before; pause before replying, no-one posts to irritate tho some replys would beggar that belief. Gud dx es 73 Ian ZL2IH |
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Re: Power Output
Julio
Thanks for the reply Fred. I've also looked at the LDG meter, looks like I'm 2 meters behind you HI HI.
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----- Original Message -----
From: Fred Winter To: FT817@... Sent: Wednesday, June 13, 2001 8:46 PM Subject: [FT817] Re: Power Output --- In FT817@y..., "Julio" <WB4OOJ@A...> wrote: > Fred how do you like the Oak Hills WM-2? Did you get yours as a kit, and does it calibrate easily. I just finished building the Z11 tuner and this is next on my list of projects. > > 73's Julio > ----- Original Message ----- > From: Fred Winter > To: FT817@y... > Sent: Wednesday, June 13, 2001 5:03 PM > Subject: [FT817] Re: Power Output > > > --- In FT817@y..., Elliott <edl@p...> wrote: > > > > > At maximum selected power the output was ~4.5 watts 1.8-7.0 mhz and > ~4.0 watts 10-28 mhz. I have not checked 6 meters, 2m/440. The > power output in the 3 lower power settings was > > proportionally lower, about 20%. > > > > > > > TIA es 72 > > Elliott WA6TLA > > I get exactly the same readings on my Oak Hills WM-2 QRP wattmeter... > > Fred KD7T > I bought my used & already assembled. It is *very* easy to calibrate. Has a calibration procedure/capabailaity built into the unit. You adjust a pot for a specified voltage & three more pots for a fixed output reading. Very easy...takes about two minutes. The unit is well designed and appears to be quite accurate on all three reading scales. (10W, 1W, 100mW) The LDG digital wattmeter looks interesting also! I have yet to try one, but am considering purchasing one. Fred KD7T Yahoo! Groups Sponsor To unsubscribe from this group, send an email to: FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see Please note that your messages and files sent to this group become public domain upon submission and may appear anywhere on the Internet or in print without notice or compensation. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. |
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Re: 817 Amps
He may or may not be interested in an Amp of this magnitude but I have used
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the FT-817 to drive my Ten-Tec Hercules II solid state linear. It varies a little from band to band but will put out up to 150 watts with the 5 watts drive. Herc II's are no longer manufactured but Ten-Tec still services them and they can be found in the used marketplace. ----- 73, Rich - W3ZJ www.w3zj.com -----Original Message-----
From: painisgone@... [mailto:painisgone@...] Sent: Wednesday, June 13, 2001 8:12 PM To: FT817@... Subject: [FT817] 817 Amps I found this discussion of interest at the EHam Elmers forum: <<<I was wondering if there were any recommendations for amplifiers that work with the FT-817. I'm a rank beginner, and QRP DX-ing is probably a bit beyond me. I'd like something that can take my 2.5 - 5 W and give me more like 35 - 50. My guess is that any HF frequencies would do. This would be for a base station setup with a serious antenna (maybe a yagi or dipole). RE: Amplifier for FT-817 Reply I'd recommend the Communications Concepts (CCI) amps, like model #EB63 (as an example). These are kits, not factory built, but come with good instructions and all the parts to build into an amplifier except for the heat sink and chassis, which you can buy from Radio Shack or many other sources. I built an EB63 twelve years ago, and it still works perfectly! It is a very robust design, based on a famous Motorola Engineering Bulletin (#EB63!). CCI sells many other HF amps, from 20W output to 1000W output, also based on Motorola Applications Notes or Engineering Bulletins, so they have quite a variety of models to choose from -- all of which are attractively priced. Although not quite as easy as "Heathkits" (darn it), the CCI kits are easy to assemble for anyone with any level of homebrewing or kitbuilding experience. The EB63, for example, produces 100W output for 5W drive power, and can run up to 140W output (with about 7-8W drive power) before it saturates, and requires only a standard 12-14Vdc power supply, nothing unusual. It also contains RF-sensed T/R switching, so a separate "amplifier key" line is not required. There are many other options available, from other sources, but I like this one. Have fun with the 817! Yahoo! Groups Sponsor To unsubscribe from this group, send an email to: FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see Please note that your messages and files sent to this group become public domain upon submission and may appear anywhere on the Internet or in print without notice or compensation. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. |
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ATX Walkabout Antenna Help
doug kaherl
I have an ATX Walkabout antenna but having a hard time
tuning to a low swr. I have it connected to the rear SO 239 connector. I am using a 1/4 wave counterpoise attached to the radio. It seems very sensitive to tuning and I am wondering what other have done for easy tuning to low swr and maximum output with the 817? Doug K8DK __________________________________________________ Do You Yahoo!? Spot the hottest trends in music, movies, and more. |
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Re: Power Output
Fred Winter
--- In FT817@y..., "Julio" <WB4OOJ@A...> wrote:
Fred how do you like the Oak Hills WM-2? Did you get yours as akit, and does it calibrate easily. I just finished building the Z11 tuner and this is next on my list of projects. and ~4.0 watts 10-28 mhz. I have not checked 6 meters, 2m/440. Thewattmeter... I bought my used & already assembled. It is *very* easy to calibrate. Has a calibration procedure/capabailaity built into the unit. You adjust a pot for a specified voltage & three more pots for a fixed output reading. Very easy...takes about two minutes. The unit is well designed and appears to be quite accurate on all three reading scales. (10W, 1W, 100mW) The LDG digital wattmeter looks interesting also! I have yet to try one, but am considering purchasing one. Fred KD7T |
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Re: Power Output
Julio
Fred how do you like the Oak Hills WM-2? Did you get yours as a kit, and does it calibrate easily. I just finished building the Z11 tuner and this is next on my list of projects.
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73's Julio ----- Original Message -----
From: Fred Winter To: FT817@... Sent: Wednesday, June 13, 2001 5:03 PM Subject: [FT817] Re: Power Output --- In FT817@y..., Elliott <edl@p...> wrote: > > At maximum selected power the output was ~4.5 watts 1.8-7.0 mhz and ~4.0 watts 10-28 mhz. I have not checked 6 meters, 2m/440. The power output in the 3 lower power settings was > proportionally lower, about 20%. > > > TIA es 72 > Elliott WA6TLA I get exactly the same readings on my Oak Hills WM-2 QRP wattmeter... Fred KD7T Yahoo! Groups Sponsor Yahoo! Website Services- Click Here! To unsubscribe from this group, send an email to: FT817-unsubscribe@... and for a great FAQ ( Frequently Asked Questions ) see Please note that your messages and files sent to this group become public domain upon submission and may appear anywhere on the Internet or in print without notice or compensation. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. |
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817 Amps
I found this discussion of interest at the EHam Elmers forum:
<<<I was wondering if there were any recommendations for amplifiers that work with the FT-817. I'm a rank beginner, and QRP DX-ing is probably a bit beyond me. I'd like something that can take my 2.5 - 5 W and give me more like 35 - 50. My guess is that any HF frequencies would do. This would be for a base station setup with a serious antenna (maybe a yagi or dipole). RE: Amplifier for FT-817 Reply I'd recommend the Communications Concepts (CCI) amps, like model #EB63 (as an example). These are kits, not factory built, but come with good instructions and all the parts to build into an amplifier except for the heat sink and chassis, which you can buy from Radio Shack or many other sources. I built an EB63 twelve years ago, and it still works perfectly! It is a very robust design, based on a famous Motorola Engineering Bulletin (#EB63!). CCI sells many other HF amps, from 20W output to 1000W output, also based on Motorola Applications Notes or Engineering Bulletins, so they have quite a variety of models to choose from -- all of which are attractively priced. Although not quite as easy as "Heathkits" (darn it), the CCI kits are easy to assemble for anyone with any level of homebrewing or kitbuilding experience. The EB63, for example, produces 100W output for 5W drive power, and can run up to 140W output (with about 7-8W drive power) before it saturates, and requires only a standard 12-14Vdc power supply, nothing unusual. It also contains RF-sensed T/R switching, so a separate "amplifier key" line is not required. There are many other options available, from other sources, but I like this one. Have fun with the 817! |
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Re: wa2phw's 20 M Portable vertical
I haven't determined that yet. Be my guest.
tom wa2phw --- In FT817@y..., jleonard@t... wrote: Just built this antenna as per his instructions and with a 16'ground wire hanging off the back of the rig, the antenna is lighting up nothe other bands??? |
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Re: Distributed Capacitance Twisted Loop
Pete NI9N wrote:
I've tried three times over the last 6-7 years to get one to work,Just goes to show, as antennas go, resonance and match do not mean efficient radiation. Many wild configurations of shortened antennas are possible, and while interesting to experiment with, they are not efficient enough to provide worthwhile communications on HF with the 5W power of the FT-817. Bonnie KQ6XA |
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Re: Pres...I even washed behind my ears
Pres Waterman
All's well that ends well
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Thanks Pres Waterman W2PW c/o Patchogue Motors, Inc. Long Island Ford and Kia dealer GO BILLS! ----- Original Message -----
From: <lhilborn@...> To: <FT817@...> Sent: Wednesday, June 13, 2001 5:39 PM Subject: [FT817] Pres...I even washed behind my ears Pres,Questions ) see Please note that your messages and files sent to this group become publicdomain upon submission and may appear anywhere on the Internet or in print without notice or compensation.
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Help with High SWR:
Gene Sailsbury
Gang:
Made a few contacts last night with 1.5 to 2.0 SWR on the Z-11 but tonight The FT-817 say HSWR and of course does not allow me to TX. No output on the Wattmeter. This is on 20 and 40 meter SSB. I am using a G5RV. I have tried in on Battery and Regulated power supply. Please answer to gsailsbury@... to say space on this group. Gene Sailsbury KC0IKY |
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Pres...I even washed behind my ears
Pres,
Thank you for the virus warning...I now know the guilt of a victim. I got the bug from another Group member (to remain anonymous) who was also a victim and most apologetic. All cleaned up now, even washed behind my ears. "welcome to da swaamp" Cheers Lynn Hilborn VE3CSS |
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Re: Distributed Capacitance Twisted Loop
Pete
Earlier today, I asked if anyone had had any luck with one of those.
I've tried three times over the last 6-7 years to get one to work, most recent was yesterday. No luck - tunes ok, but hears very little, even compared with a random wire of equivalent length. Pete, NI9N --- In FT817@y..., dafrozentundra@y... wrote: Hello from an FT-817 wannabe (and soontobe)!small loop made of 300 ohm twinlead. I saw it featured in CQ sometimetune it down to 80m.each band you want to work. Given the material used, several antennas |
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Re: Power Output
Elliott Lawrence
Dave:
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Thanks for the info. I just ordered the manual and some DIN connectors. Apparently Yaesu is coming out with a service manual update as they have assigned a new part number. Unfortunately they are not yet in stock and could be a while in arriving. So...I decided to order what was available. 72 Elliott WA6TLA David Henn wrote: --- In FT817@y..., Elliott <edl@p...> wrote:Thanks Dave but the power output was down immediately after Iturned the radio on. So...duty cycle/heating is not the problem.Hello Elliott, |
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