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Re: HELP 817 Off Freqency
Oh my goodness man. 10 Hz at 50MHZ is .2 Parts Per Million (PPM) and 4Hz at
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14MHZ is .28 PPM. That's excellent considering the spec calls for 1 PPM. So you are well within spec. You could perhaps achieve some improvement by adding the optional TXCO but even that is only speced at .5 PPM, so you're better than that. I think you are expecting lab standard accuracy from a $700 transceiver - don't be silly. ---- 73, Rich - W3ZJ -----Original Message-----
From: baranger1@... [mailto:baranger1@...] Sent: Monday, May 28, 2001 2:51 PM To: FT817@... Subject: [FT817] HELP 817 Off Freqency I just noitced the display on my 817 reads 10Hz low on 6 meters and 4Hz low+/- on the lower bands. Does anyone know is there is a way to adjust this via software or the how to adjust this via a trim pot? Its not off a lot but it does bug me! Thanks, Bill W9WCR Yahoo! Groups Sponsor www. .com 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. |
Re: Birdies on VHF/UHF of the FT-817
I have noticed birdies on 70cm (432.625, 433.400, 434.175, 434.950, 435.725, 436.025 (strongest), 436.525, 437.300, 438.100, 438.900, 439.700) and so. They get weaker beyond 440 MHz. The ones on 436.025 MHz, 438.100 MHz and 438.900 MHz do open the squelch, all others are relatively weak. The 438.900 MHz is in particular annoying as it is a repeater output in Germany. The birdies are rather broad, resulting from the synthesizer and all occur with all antennas disconnected, PC switched off etc... I have noticed above birdies with 4 different units so far. I haven't checked VHF. It seems that we have to leave with these birdies so far or go back in time and carry the FT-290, FT-790, FT-690 and a K-2 over our shoulders.....Personally I prefer the FT-817, even with those birdies (and the other 29 on the shortwave bands...).
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Tom DF2OO Demetre Valaris - SV1UY wrote: Hello all, |
Re: 1st Day with the ATX
Rich,
I'm glad that you and a couple of others have found the settings I posted useful. On 10 - 17m I now use a 5m lockable steel measuring tape. I went through the same procedure as before, noting down the reading on the tape that gave best results. I didn't publish the settings because I guess they might vary from one make of tape measure to another. Contrast this with the trouble I have had getting the MP-1 to work. In view of the comments by others on this list that the MP-1 is the best thing since sliced bread I have put in many more hours trying to discover the secret but I have still not observed anything to suggest it works more efficiently than the ATX in practice, and the best SWR I can get on several bands is no better than 2.5:1. Before anyone starts shouting at me for being obsessed with this SWR issue let me share with you the results of some tests I did to determine how the FT-817 reacts to high SWR. On the 2.5W setting "L)))" the transceiver appears to put out the full 2.5W regardless of SWR. On the 5W setting full power is output up to three bars of SWR. As soon as the fourth bar appears power is reduced by about 20%. When the fifth bar appears power is reduced to about half. So if you are running off the battery and accepting the default 2.5W maximum power setting, and have a short co-ax feed, the SWR probably doesn't matter very much and you can just tune by ear. On 5W however, you should try to get 3 bars or less. Julian, G4ILO www.qsl.net/g4ilo --- In FT817@y..., "Rich Casey (N5CSU)" <n5csu@y...> wrote: After reading this newsgroup for quite a while, I ordered an ATXSunday (!) afternoon- the postman delivering my ATX! I was heading over tofreqs via FTBasic), packed up everything into my $5 carrying case, andtook it over to the YL's house. In her loft computer room, I plugged inmy $3 power supply, and used a 90 degree connector to plug the ATXinto the SO-239 on the back of the rig. I set out the whip length for 20on first call. NCS at the time was in Alabama, I'm in Dallas. Later Inot all, of the info I needed to make this work was received throughthis newsgroup. It is a GREAT resource for the 817 operator. |
Re: Loop antenna
Ray Goff
Hi,
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I have just got back from a week in a hotel in Belgium where I have been testing my 40-30-20m portable loop antenna with the FT817. Scattered in the 350 or so emails waiting for me from this reflector was a discussion thread on loop antennas, so I thought I would add my experiences... My loop consists of 16 feet of hook up wire in a diamond shape. Across the diagonal of the diamond is a spreader made from three 20 inch lengths of dowel which are fitted together to give 60 inches by pieces of plastic tubing made from old felt-tip pens. Incidentally, twenty inches was chosen because it fits into my suitcase. At the top of the loop is the suspension point, made from a piece of MDF about 3 inches square. This also mounts a three position slide switch switch and four bee-hive trimmers. The feedpoint, at the bottom of the loop, consists of a toroidal transformer housed in a 35mm film canister. The aerial is fed from a length of 50 Ohm coax cable terminated in a BNC connector. The three position switch selects a different capacitor for each band (I found I needed two in parallel for resonance on 40). At first I tried paralleling the capacitors to tune the lower bands, but the tuning became too interactive, so I now use different capacitors for each band. By adjusting the turns ratio on the toroidal transformer I have been able to achieve 1:1 SWR on all bands. The aerial worked surprisingly well in Belgium, so I decided to test it further in the WPX contest over the weekend. I hung it from the light fitting in the ground floor kitchen of my house and worked loads of stations on 40 and 20. Best DX on 20m was NW7R in Arizona, easily 7000 miles from my QTH in Oxford, England. On 40, I worked several Asiatic Russian stations. All with 5 Watts from the FT817... You may also be interested to know that the aerial was originally resonated at the QRP frequencies for each band, but during the contest I worked the entire CW section of each band without bothering to retune. If there is an interest in the aerial, I would be happy to write it up further. Ray g4fon -----Original Message-----
From: Glyph [mailto:bbp@...] Sent: 28 May 2001 01:28 To: FT817@... Subject: Re: [FT817] Loop antenna It would be interesting to design a "fold-up" loop of some sort that could be very compact but expandable into a really efficient size. Of couse, the design perameters usually call for a very good conductor with no purely mechanical connections if at all possible. They're usually built out of copper pipe (anyone got gold pipe?). Here's someone's mission impossible. -- Bil KD6JUI ----- Original Message ----- From: Bill Walker <kd7jzb@...> To: <FT817@...> Sent: Wednesday, May 23, 2001 8:19 AM Subject: Re: [FT817] Loop antenna True, the efficiency of mine calculates to be around 35% at 14.1Mhz and ofhave to remember is that it was designed to be small, not efficient. the actual3 inches. If you start getting larger in diameter the radiation patternsmall metersto have good radiation efficiency on 20 meters. Maybe 10 meters or 6 paceswould be optimal. I'm too lazy to look up the optimal sizes in the ARRL "Smallwith various field-type antennas -- specifically, hamsticks, G5RV-type well.HF Transmitting Loop Antennas". diameterActually loops are very simple to build. I have a 2 foot 6 inch performanceloop which tunes 20M thru 12M and appears to be comparable in camerato my half wave dipole. atripod in the shack about 4 feet above the floor and using my trustyFT-817at 5 watts, answered N8LWV calling CQ on 20M (ssb) from Grand Rapids lines.339 signal report! Not bad from Tucson Arizona! radioIpurchased the tubing at Home Depot in a 10 foot coil for a little over$10.The small 6 inch diameter primary loop is made from #6 copper wire. theand go to the park, and it seems to work pretty well 7 or 8 feet above ofground. I'm sure it would work better up higher, I use mine oriented youronly a few Khz. This means that you must retune the loop if you vary narrowfrequency very much. This is fine when using CW or PSK31 but is to tuningfor SSB unless you have a motorized tuning capacitor so that you canretuneeasily. I believe that MFJ has a loop with some form of automatic want amechanism which would help immensely but from what I remember they $20premium price for such an otherwise simple antenna. I spent less than pagebuilding mine but I have to manually tune it. for you to look at for ideas.Questions ) see Questions ) seeBill Walker - KD7JZB
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Newbie Question,
John Grow
Hello to all,
I just bought a FT817 yesterday, it great, I got it home, listened to some freq, then tackled the manual. I have two questions to ask the good persons on the group. 1. I'm having trouble to use the radio on 2 m FM, with some repeaters that I entered. I can't change the repeater shift. I'm following the manual, I believe. So far I have made a contact using the FT 817. 2. I bought some RS MiNh rechargable batteries. To use them and charge them in the radio, do I have to cut a wire. I have the Wall wart that goes with the FT 817. If I cut the wire, if I wanted to use another battery pack, will I still be able to do so. I cheked the past postings, and I did not find anything that looked like it ould help me. Regards, John |
Re: RT Systems Cat software is out!
--- In FT817@y..., "Brian Frobisher" <flingit@l...> wrote:
I paid the $25.00 and the $5.00 shipping.Yes, I got mine too. It is able to read the data from the radio, but when you try to send data back to the radio the program crashes every time. I've sent an e-mail to RT Systems tech support, but so far no response (although this could be because of the holiday...) |
1st Day with the ATX
Rich Casey (N5CSU)
After reading this newsgroup for quite a while, I ordered an ATX
last weekend from Great Britain. There was a knock at the door Sunday (!) afternoon- the postman delivering my ATX! I was heading over to my YL's soon, so I grabbed my 817 (preprogrammed with loads of freqs via FTBasic), packed up everything into my $5 carrying case, and took it over to the YL's house. In her loft computer room, I plugged in my $3 power supply, and used a 90 degree connector to plug the ATX into the SO-239 on the back of the rig. I set out the whip length for 20 meters and the Radio Shack counterpoise length per Julian's recommendations, and was happy to see a flat SWR. I then checked into the Maritime Mobile Service Net freq (14.300) on first call. NCS at the time was in Alabama, I'm in Dallas. Later I worked a Colo Springs ham on 20. Nicely built whip; will try it on the other bands today. Two points: the radio and antenna are loads of fun, and most, if not all, of the info I needed to make this work was received through this newsgroup. It is a GREAT resource for the 817 operator. 73 Rich/n5csu Dallas TX PS: Check the Bookmarks list on this newsgroup for all links to the items mentioned in this e-mail. |
Re: Another Amp for the '817'
With regard to, no need for amps, last night I had my first opportunity to
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operate my new FT-817 from aboard my boat (a 30 Ft Bayliner cruiser). Since I don't have any HF antennas installed on there yet, I mounted a 20 meter Maldol whip on the back of my Z11 tuner with a coax elbow and a BNC adaptor. I set the tuner with the whip attached on top of the bridge (probably 6 or 7 feet above the water and draped an 11 foot radial over the captains chair toward the stern letting the end just fall onto the fiberglass deck. Then I went down into the cabin plugged FT-817 into a cigarette lighter jack (no special wiring required for this little rig) to see if this would work at all. As soon as I turned the power switch on, there was Dan, S52KA calling CQ on 20 CW. Not really expecting him to hear me I answered his call and much to my surprise and delight he came back and gave me a 579. I went on to make several more DX contacts on 20 CW all of whom answered on the first call. Yes there may be times when an amp would help but you aren't going to just plug that into a cigarette lighter jack and what a thrill it is to do it with 5 watts and a makeshift antenna! --- 73, Rich - W3ZJ -----Original Message-----
From: Steve Hajducek [mailto:n2ckh@...] Sent: Monday, May 28, 2001 8:16 AM To: FT817@... Subject: Re: [FT817] Another Amp for the '817' At 08:37 AM 5/28/01 -0400, you wrote: >Wow! This looks like THE amp for the '817' Full output from 2-30 mHz with >only .2watts of drive! Personally I like QRP fine but for those of you >that MUST have an amp this looks like it would be GREAT! > >Check it out at: > > >73, Paul K3PG >_________________________________________________________________ >Get your FREE download of MSN Explorer at > > > >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 > Nah... To big, takes 380v etc., I'll stick with my Collins 204F as it is light and compact and runs off lower voltage and has more than enough output... hi hi /s/ Steve, N2CKH Yahoo! Groups Sponsor 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. |
Re: Another Amp for the '817'
--- In FT817@y..., "Paul Gerhardt" <pgerhardt@h...> wrote:
Wow! This looks like THE amp for the '817' Full output from 2-30mHz with only .2watts of drive! Personally I like QRP fine but for thoseof you that MUST have an amp this looks like it would be GREAT! m Gee, I wonder, how long will it run from a 6 Ah gel-cel? Does it include a charger? It looks like you could carry it on your bicycle... |
Re: New Version of the RATS FT-817 GUI Available - It Has A New Look
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-----Original Message-----
From: Don [mailto:k7ugq@...] Sent: Monday, May 28, 2001 9:52 AM To: FT817@... Subject: Re: [FT817] Re: New Version of the RATS FT-817 GUI Available - It Has A New Look > The FT-817 does take a little getting used to, but so do the IC706, > the FT-100, the FT-847, etc. and so will any program to control any > of these radios. Personally, I really dislike some of the cryptic > abbreviations that the manufacturers have used in the menus - but > we're stuck with them until something better comes along. > > 73. > Rick (VE3CVG) > Yes! Case in point, Intercept Point Optimization "IPO", which is really just turning the preprocessor on and off but on is off and off is on. I wonder if whoever came up with that one was standing on his head at the time? But, as you say, it just takes a little getting used to :-) 73, Rich - W3ZJ |
Single short counterpoise for FT-817
I have experimented with a single short counterpoise of 6metres in
length which I have found works well with the ATX walkabout on all bands from 6m to 20m. Julian in his message number 6378 mentions the whip lengths he found for best swr using severate radials for each band, I have found the exact same whip lengths as Julian using my single counterpoise. For 40m and 80m my counterpoise is too short, however on the end is a small crocodile clip which I attached later to a nearby wire fence and then the ATX tuned great on 40m as per Julians message and also with 8 sections whip length required on 80m. The 5 amp crocodile clip, 8 amp insulated wire and male and female bullet connectors for the counterpoise were all purchased very cheaply from a nearby high street car accessory shop. Using the bullet connectors I only have about 2" of wire attached full time to the back of the Ft-817. Regards Philip G0ISW |
Re: New Version of the RATS FT-817 GUI Available - It Has A New Look
Don
Well put Rick. Ay first I too was a little miffed. I wanted an exact
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replica of the ft-817 on the screen. However, once I got over it I began to enjoy the features I normally use. ----- Original Message -----
From: <ve3cvg@...> To: <FT817@...> Sent: Sunday, May 27, 2001 11:05 PM Subject: [FT817] Re: New Version of the RATS FT-817 GUI Available - It Has A New Look Does it matter if the program looks like another radio, as long as itQuestions ) see
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Another Amp for the '817'
Wow! This looks like THE amp for the '817' Full output from 2-30 mHz with only .2watts of drive! Personally I like QRP fine but for those of you that MUST have an amp this looks like it would be GREAT!
Check it out at: 73, Paul K3PG _________________________________________________________________ Get your FREE download of MSN Explorer at |
MFJ VHF WX Converter
Curtis, Tony
The postings about the MFJ WX converter jogged my memory so I dug around in
the junk box. I found a very small black box with a female BNC connector on top and and a male BNC on the bottom and a three-position togle switch labeled: 160-164 MHz 154-158 MHz OFF I believe it converts those frequency ranges to 144-148 MHz. It measures 1.5" wide, 1.5" deep, and 2" tall. The clamshell case is held toghether by four screws. Inside is one AAA battery. The item is model MFJ-313 and probably is the converter we have been talking about. --Tony K3RXK k3rxk@... |
Re: Another Amp for the '817'
Steve Hajducek
At 08:37 AM 5/28/01 -0400, you wrote:
Wow! This looks like THE amp for the '817' Full output from 2-30 mHz withQuestions ) see Nah... To big, takes 380v etc., I'll stick with my Collins 204F as it is light and compact and runs off lower voltage and has more than enough output... hi hi /s/ Steve, N2CKH |
Re: New Version of the RATS FT-817 GUI Available - It Has A New Look
Mark A. Smith
The reason I decided to use the RATS FT-847 display for the RATS FT-817, and
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deviate from my original plan to make each RATS interface look similar to and function like the actual radio, was that I thought it might be better to have most of the functions displayed on the radio face or menu for quicker access. I also asked for input during the development stage on what users preferred for an interface for this radio, and most everyone wanted the full featured display with dual frequency readouts for SPLIT, etc. Since the RATS FT-847 interface was already written I was able to use it and shorten the development time by months. So that's my story, and I'm stickin to it. To be honest, had I known in advance that Bob was going to write such a fantastic program in FTBasic with all the features and price he has, I would have skipped this project and spent more time with my family. Anyway it's too late now, so I'll just keep doing the best I can with what I have. 73 Mark KB5KYX ----- Original Message -----
From: <ve3cvg@...> To: <FT817@...> Sent: Sunday, May 27, 2001 10:05 PM Subject: [FT817] Re: New Version of the RATS FT-817 GUI Available - It Has A New Look Does it matter if the program looks like another radio, as long as it is well layed out, looks presentable and performs well? I like FTBasic. It works well, doesn't lock up my machine, has a nice GUI, and the cost is trivial. Besides ... I know Bob Freeth will be adding as many features as he can think of for the next while. Talk about incredible value. The FT-817 does take a little getting used to, but so do the IC706, the FT-100, the FT-847, etc. and so will any program to control any of these radios. Personally, I really dislike some of the cryptic abbreviations that the manufacturers have used in the menus - but we're stuck with them until something better comes along. 73. Rick (VE3CVG) --- In FT817@y..., "Steve Howell" <AB8JC@y...> wrote: Am I the only person who thinks that it's amazing that usersNope. I haven't had an HF rig in 10+ years, so I'm *definitely* 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 |
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