[Repeater-Builder] OT - Jeep Cherokee
Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. thanks 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] OT - Jeep Cherokee
I have a 89 with 250k miles and no noise problems. Just gas mileage problems (20+ MPG). Vincent N6OA2 - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, April 05, 2006 3:19 AM Subject: [Repeater-Builder] OT - Jeep Cherokee Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. thanks 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] OT - Jeep Cherokee
On Wed, 05 Apr 2006 02:19:52 -0500, JOHN MACKEY wrote: I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) John: I've done a bunch of install work to these vehicles. What do you have planned for antennas? Does your Jeep have the fiberglass cap? Tedd Doda, VE3TJD Lazer Audio and Electronics Baden, Ontario, Canada 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] OT - Jeep Cherokee
- Original Message - From: JOHN MACKEY [EMAIL PROTECTED] I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I have a '91. It has a little bit of spark noise because they didn't put the right spark plugs in it the last (actually, only) time I had the plugs changed. I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. Man... if you aren't running a 706, you're gonna run out of room unless you get one of those professional rack setups like what police departments use. I have a FT-60 (6m only all-mode) and an Icom 2720 under the dash on the left side, I used one long thick metal strip to grab as many screws under the dash itself, then I hung the radios from the strip. I need to hang an APRS radio on the right side somewhere. :-) Good luck. Off to work. :-) _Ray_KBØSTN 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] Quick CW ID'er
I use the ID-O-MATIC and it takes about 10minutes to make it and is very user freindly with hyperterminal.. I have use these many times and currently have one in my VHF repeater. When the old burn only prom needed to be changed I just used this item instead and wired it in. $28.00 73 Phil KE4PWE - Original Message - From: Bob M. [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Sunday, March 19, 2006 7:45 AM Subject: Re: [Repeater-Builder] Quick CW ID'er Communications Specialists (the folks who make tiny PL encoders and decoders) also has a CW ID board that might do the trick. I guess it depends on your idea of cheap, but I think it's around $50 and would do the trick for commercial as well as amateur stations. Bob M. == --- wa9ba [EMAIL PROTECTED] wrote: Has anyone came up with a cheap easy CW ID'er for a GR 500 repeater? I was hoping I could find something that would say plug into the mic socket that would ID every 10 minutes. Bill WA9BA Yahoo! Groups Links [EMAIL PROTECTED] __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 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] NEUTEC-PACE-RANGER SM-1645
They were bought up by Ranger communications in Calif. The last one I sent eprom to them with a list of channnels and they programmed it. I think it was around 20 bucks. I can find address if needed. If it will help some where I have a service manual with programming info in it. You would still need the programer to do the job. Mike Ka2ndw -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of cobalto27mx Sent: Tuesday, April 04, 2006 2:58 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] NEUTEC-PACE-RANGER SM-1645 HELLO GROUP: ANIBODY INFO FOR PROGRAM THE SM-1645,SOFWARE,PROGRAMMER, DIAGRAM. THIS HAVE A EPROM 2716. THANKS-GRACIAS. JESUS 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] OT - Jeep Cherokee
JOHN MACKEY wrote: Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I've had a '97 and a '01 as company vehicles and had most of those bands in it with no problems. I currently have a low-band Syntor X (6 10), a Kenwood TK-705D (VHF) and 805D (UHF), and a EFJ 8640 (900). No RFI problems that I've noted. I used to have an Azden 6M rig in the '97, and could tell anytime I got close to a K-car or one of the next generation after that, whatever they were called...computer birdie very close to 53.01...doesn't bother the Syntor though...???...must be IF related... Mounting is not bad, but placement is a challenge. The 705 is mounted under the dash to the left of the steering wheel, the 805 is mounted on the right side of the console mounted to just clear the glove compartment door and the passenger seat, and angled so I can see it. The head of the Syntor is mounted on the left side of the console under the dash, facing up. Since it doesn't have a display, I don't need to see it as much. The radio itself is on the floor in the backseat, since no one ever sits back there anyway, but it could have been mounted in the back just fine. I was able to find existing gaskets to run power through the firewall and up to a GE fuse block under the hood. With yours being a few years older, mounting may be easier. I remember there was more under-dash room in my wife's '92, but we never put a radio in it (she hadn't gotten her ticket yet). -- Jim Barbour WD8CHL 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] OT - Jeep Cherokee
Use the spectrum analyzer. Mike -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of JOHN MACKEY Sent: Tuesday, April 04, 2006 11:20 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] OT - Jeep Cherokee Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. thanks 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] OT - Jeep Cherokee
As an additional resource, check the archives of the Mobile-Portable group (QTH.com). There's a well of experience and knowledge about such topics in that group. At 02:19 AM 4/5/2006, you wrote: Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. thanks Yahoo! Groups Links Thanks, Robin Midgett K4IDC VHF+ Glutton EM66se 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/
[Repeater-Builder] Frequency Spacing?
How close, frequency spacing wise, can a couple of VHF (2 meter) repeaters in the same equipment room on the same short tower be made to work well without much trouble or extra expense? How does 45 Kc. with same 600 Kc. offset sound? What will work this close and what won't? Comments please and thanks, Scott YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Favorite power swr bridge
What I meant to say Steve is,the 807 Tubes brings back some good memories as in 1957 I built mt first Cw Transmitter using these tubes Wesley AB8KD 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] OT - Jeep Cherokee
What happened to your International Scout? Neil Original Message From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] OT - Jeep Cherokee Date: Wed, 05 Apr 2006 02:19:52 -0500 Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. thanks 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] OT - Jeep Cherokee
Gas mileage? Say that to my 1990 Suburban - 358,000+ miles - original engine. Neil - WA6KLA Original Message From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] OT - Jeep Cherokee Date: Wed, 5 Apr 2006 07:25:57 -0400 I have a 89 with 250k miles and no noise problems. Just gas mileage problems (20+ MPG). Vincent N6OA2 - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, April 05, 2006 3:19 AM Subject: [Repeater-Builder] OT - Jeep Cherokee Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. thanks Yahoo! Groups Links 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] Favorite power swr bridge
My first HiFi amplifier used a pair of 807's ... Neil - WA6KLA Original Message From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Favorite power swr bridge Date: Wed, 5 Apr 2006 10:39:14 -0400 What I meant to say Steve is,the 807 Tubes brings back some good memories as in 1957 I built mt first Cw Transmitter using these tubes Wesley AB8KD 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] Frequency Spacing?
At 4/5/2006 07:27, you wrote: How close, frequency spacing wise, can a couple of VHF (2 meter) repeaters in the same equipment room on the same short tower be made to work well without much trouble or extra expense? How does 45 Kc. with same 600 Kc. offset sound? What will work this close and what won't? If the offset is the same, closer is actually better since the duplexer of each repeater will protect each RX from both TXs, both in RX notching of TX TX noise suppression at the RX freq. However, isolators on both TXs are a MUST, otherwise you will 2A-B mix in both TXs end up TXing 45 kHz above below your two outputs. Try to keep the two antennas as far apart as possible. If you can't separate the antennas much, you might need dual isolators on both TXs. I've seen two TXs 20 kHz apart at the same site mix strong enough to be heard 10 miles away, even though both systems had single isolators. When dealing with close-freq. TX spacing, equipment shielding seems to be more important for some reason. Stay away from converted mobiles as repeaters, or plan on using a separate RX in an RF-tight box with EMI feedthroughs. Bob NO6B 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/
[Repeater-Builder] Birdies in - Jeep Cherokee
Hi John, Using all the common uhf/vhf bands in a Cherokee I can tell you there will be some minor (but strong) birdies at various vhf/uhf spectral locations. They appear to be computer software located so they do go away when some major operational parameters changes during your trips (travel). As an example... a birdie will pop up on a frequency but will probably not return to the same frequency the next time the vehicle is started. Relative to the overall operation, The birdie problem on a desired frequency is less than 3% of the time. I have yet to operate hf on the road from the Cherokee, which makes very a nice service/radio vehicle. The drive shaft and 4wd front knuckle U-Joints without grease fittings are/were my only complaint. I just had the originals replaced with new Spicer units, which have the much desired grease fittings. Doesn't have anything to do with the radio, but what the heck... cheers, skipp JOHN MACKEY [EMAIL PROTECTED] wrote: Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. thanks 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/
[Repeater-Builder] Re: Close TX ( RX) Frequency Spacing?
If two close frequency transmitters are only 45 KHz difference... You could use a hybrid tx combiner, but it has 3dB power loss per transmitter. Sometimes you don't have the option of two antennas at some repeater sites. One antenna with both radios would work but two antennas would be the more practical method. Dual antennas would allow you to pipe a single tx output to each... If you were crafty, you'd use the highest antennae for both receivers. Java time...! (decafe actually) cheers skipp [EMAIL PROTECTED] wrote: At 4/5/2006 07:27, you wrote: How close, frequency spacing wise, can a couple of VHF (2 meter) repeaters in the same equipment room on the same short tower be made to work well without much trouble or extra expense? How does 45 Kc. with same 600 Kc. offset sound? What will work this close and what won't? If the offset is the same, closer is actually better since the duplexer of each repeater will protect each RX from both TXs, both in RX notching of TX TX noise suppression at the RX freq. However, isolators on both TXs are a MUST, otherwise you will 2A-B mix in both TXs end up TXing 45 kHz above below your two outputs. Try to keep the two antennas as far apart as possible. If you can't separate the antennas much, you might need dual isolators on both TXs. I've seen two TXs 20 kHz apart at the same site mix strong enough to be heard 10 miles away, even though both systems had single isolators. When dealing with close-freq. TX spacing, equipment shielding seems to be more important for some reason. Stay away from converted mobiles as repeaters, or plan on using a separate RX in an RF-tight box with EMI feedthroughs. Bob NO6B 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] Birdies in - Jeep Cherokee
Hi John, ... snip ... The drive shaft and 4wd front knuckle U-Joints without grease fittings are/were my only complaint. I just had the originals replaced with new Spicer units, which have the much desired grease fittings. Doesn't have anything to do with the radio, but what the heck... Seems to me all new vehicles come without the Zerk (grease) fittings whenever the manufacturer can get away without installing them. Just more of something to wear out - and replace costing you, the end user, more money. In every opportunity to do so, I always buy replacement parts with the Zerk fittings attached. Hope this helps, Neil - WA6KLA cheers, skipp JOHN MACKEY [EMAIL PROTECTED] wrote: Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. thanks 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] OT - Jeep Cherokee
I sold the Scout 11 years ago. -- Original Message -- Received: Wed, 05 Apr 2006 09:46:52 AM CDT From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] OT - Jeep Cherokee What happened to your International Scout? Neil Original Message From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] OT - Jeep Cherokee Date: Wed, 05 Apr 2006 02:19:52 -0500 Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. thanks Yahoo! Groups Links 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] OT - Jeep Cherokee
That was the one with the spare engine in the back seat? Neil Original Message From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] OT - Jeep Cherokee Date: Wed, 05 Apr 2006 10:56:52 -0500 I sold the Scout 11 years ago. -- Original Message -- Received: Wed, 05 Apr 2006 09:46:52 AM CDT From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] OT - Jeep Cherokee What happened to your International Scout? Neil Original Message From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] OT - Jeep Cherokee Date: Wed, 05 Apr 2006 02:19:52 -0500 Yes, a slightly off topic question. I recently acquired a 1992 Jeep Cherokee with the 4L engine 4 speed automatic transmission. Anyone have any experience to know if I should expect to have any RFI problems from this vehicle? I want to put the following bands of radios in it: HF (10-75 meters) 6 meters 2 meters 440 MHz 902 MHz CB (11 meters) Any other advice from those who have had Jeep Cherokees for mounting radios in the Cherokee would be appreciated. thanks Yahoo! Groups Links Yahoo! Groups Links 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/
[Repeater-Builder] RE:solid U-joints, was -- Birdies
Two reasons actually... 1) The units with no Zerk fitting are usually solid (ie. not cross drilled to facilitate lubrication) and are therefore much stronger. 2) No lubrication (sealed) means they WILL be serviced. Not fun, usually the dealer or a trusted local guy gets the work... Just my 2 cents... BTW, I use solids in my '80 Vette drive train. I haven't found a single unit with the cross-drilled configuration that can stand-up to 570 ft-lbs of torque, and 630 hp applied to the ground through a 4 speed. Every once in a while you just gotta embarrass the high-school kid in his 5 liter Mustang. You know the me too cars. I usually invite them to the local drag strip for an education grin! In front of all of their friends... I have a five liter Mustang.. Me too Mine has Flow-Master exhaust.. Me too Get the picture... 73 Mike Perryman www.k5jmp.us -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Wednesday, April 05, 2006 11:45 AM To: [EMAIL PROTECTED]; Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Birdies in - Jeep Cherokee Hi John, ... snip ... The drive shaft and 4wd front knuckle U-Joints without grease fittings are/were my only complaint. I just had the originals replaced with new Spicer units, which have the much desired grease fittings. Doesn't have anything to do with the radio, but what the heck... Seems to me all new vehicles come without the Zerk (grease) fittings whenever the manufacturer can get away without installing them. Just more of something to wear out - and replace costing you, the end user, more money. In every opportunity to do so, I always buy replacement parts with the Zerk fittings attached. Hope this helps, Neil - WA6KLA 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/
[Repeater-Builder] Aria-GLB preselector preamps.
Anybody familiar with this? I remember the old GLB units from waay back, and did not realize they were still/now available. I just requested pricing for a 220 unit. They spec it at 8db of gain, and 44 db of rejection at the transmit frequency . Pretty darn good! http://www.aria- glb.com/products/reset_frames.htm?/products/preselector.htm 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] Frequency Spacing?
There is a magic number where the output of one repeater will not bother the input of the other and vice versa. I would want the two repeaters to be as close as possible to each other's frequency. You can use ONE duplexer for both repeaters if they are very close to each other, say less than 75 khz or so. Use a hybrid combiner and isolators to combine the two close spaced transmitters, and a receiver pre-amp / splitter to feed the two receivers. I have 3 repeaters in 460 using one duplexer with a cavity combiner, and receiver preamp / splitter combination. The repeaters are within a 150 khz window and the system works well. The repeaters are 110 Watt Johnson VX series running narrow band FM. Steve NU5D On 4/5/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: At 4/5/2006 07:27, you wrote:How close, frequency spacing wise, can a couple of VHF (2 meter) repeaters in the same equipment room on the same short tower be made to work wellwithout much trouble or extra expense? How does 45 Kc. with same 600 Kc.offset sound? What will work this close and what won't? If the offset is the same, closer is actually better since the duplexer ofeach repeater will protect each RX from both TXs, both in RX notching of TX TX noise suppression at the RX freq.However, isolators on both TXs are a MUST, otherwise you will 2A-B mix in both TXs end up TXing 45 kHz above below your two outputs.Try to keep the two antennas as far apart aspossible.If you can't separate the antennas much, you might need dual isolators on both TXs.I've seen two TXs 20 kHz apart at the same site mixstrong enough to be heard 10 miles away, even though both systems hadsingle isolators.When dealing with close-freq. TX spacing, equipment shielding seems to be more important for some reason.Stay away from converted mobiles asrepeaters, or plan on using a separate RX in an RF-tight box with EMIfeedthroughs.Bob NO6BYahoo! 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/-- DE NU5D - Promote Amateur Radio YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Fw: Re: [Repeater-Builder] Frequency Spacing?
I have several repeaters on one tower .2 uhf commercial 473.575 and 489.10mhz and 3 VHF 70meg repeaters 70.300mhz,70.5875,70.725mhz and i am having desense issues on both 70.5875mhz and also 473.575.Would i also require installing isolators on each of these repeaters..any thoughts? Thank You, Ian Wells, Kerinvale Comaudio, www.kerinvalecomaudio.com.au ---Original Message--- From: [EMAIL PROTECTED] Date: 04/06/06 01:32:28 To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Frequency Spacing? At 4/5/2006 07:27, you wrote: How close, frequency spacing wise, can a couple of VHF (2 meter) repeaters in the same equipment room on the same short tower be made to work well without much trouble or extra expense? How does 45 Kc. with same 600 Kc. offset sound? What will work this close and what won't? If the offset is the same, closer is actually better since the duplexer of each repeater will protect each RX from both TXs, both in RX notching of TX TX noise suppression at the RX freq.However, isolators on both TXs are a MUST, otherwise you will 2A-B mix in both TXs end up TXing 45 kHz above below your two outputs.Try to keep the two antennas as far apart as possible.If you can't separate the antennas much, you might need dual isolators on both TXs.I've seen two TXs 20 kHz apart at the same site mix strong enough to be heard 10 miles away, even though both systems had single isolators. When dealing with close-freq. TX spacing, equipment shielding seems to be more important for some reason.Stay away from converted mobiles as repeaters, or plan on using a separate RX in an RF-tight box with EMI feedthroughs. Bob NO6B 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 Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Aria-GLB preselector preamps.
At 4/5/2006 09:22 AM, you wrote: Anybody familiar with this? I remember the old GLB units from waay back, and did not realize they were still/now available. I just requested pricing for a 220 unit. They spec it at 8db of gain, and 44 db of rejection at the transmit frequency . Pretty darn good! http://www.aria-glb.com/products/reset_frames.htm?/products/preselector.htm I'd sure like to know what the noise figure is - only gain selectivity specs are given, no NF. If it's the same as http://www.simrex.com/site/products/preselector/Preselector1.pdf, I'd expect it to have a high NF. Since this thing would typically be ahead of any other preamps (if any), it would effectively set the NF of the RX system. A GaAsFET preamp is used, but if it's preceded by a filter with 8 dB of loss, the NF will be ~8.5 dB. Bob NO6B 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] Aria-GLB preselector preamps.
Yep, me too. I could use a pre-amp for my 6m machine. But with the GLB box spec'ed for 600kHz offset, it could be an issue for me. My split is 5ookHz. Response plots would be nice.. 73 Mike Perryman www.k5jmp.us -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Bob Dengler Sent: Wednesday, April 05, 2006 2:15 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Aria-GLB preselector preamps. At 4/5/2006 09:22 AM, you wrote: Anybody familiar with this? I remember the old GLB units from waay back, and did not realize they were still/now available. I just requested pricing for a 220 unit. They spec it at 8db of gain, and 44 db of rejection at the transmit frequency . Pretty darn good! http://www.aria-glb.com/products/reset_frames.htm?/products/preselector.htm I'd sure like to know what the noise figure is - only gain selectivity specs are given, no NF. If it's the same as http://www.simrex.com/site/products/preselector/Preselector1.pdf, I'd expect it to have a high NF. Since this thing would typically be ahead of any other preamps (if any), it would effectively set the NF of the RX system. A GaAsFET preamp is used, but if it's preceded by a filter with 8 dB of loss, the NF will be ~8.5 dB. Bob NO6B 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/
[Repeater-Builder] Re: Frequency Spacing?
Date: Wed, 05 Apr 2006 08:30:11 -0700 From: [EMAIL PROTECTED] Subject: Re: Frequency Spacing? At 4/5/2006 07:27, you wrote: How close, frequency spacing wise, can a couple of VHF (2 meter) repeaters in the same equipment room on the same short tower be made to work well without much trouble or extra expense? How does 45 Kc. with same 600 Kc. offset sound? What will work this close and what won't? My 2 cents worth. Seven years ago at Lake Tahoe at 8000' ( harsh winters ) on a 40' tower we put 2 repeaters and a remote base receiver using 2 antennas. At the top of the tower we use a DB 2 bay folded dipoles for master receive. Receive frequencies 144.55, 146.25, 147.195. Using 2 4 bandpass cavities for each frequency. 25' lower we use 5 element yagi side mounted to a 2 channel combiner. Tx 145.150, 146.850. Both transmitters are less then 30 watts using 2 isolators and 24 bandpass cavity for each transmitter. This has worked flawless, good tower bonding is a must and using copper hard line and rg 214 jumpers (no 9913 type cable for this installation). Chris n6icw http://www.n6icw.org 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] Birdies in - Jeep Cherokee
skipp025 wrote: Hi John, Using all the common uhf/vhf bands in a Cherokee I can tell you there will be some minor (but strong) birdies at various vhf/uhf spectral locations. I also get some from the fuel pump in a 2000 Cherokee Classic. They appear to be computer software located so they do go away when some major operational parameters changes during your trips (travel). Yeah, mine change too. As an example... a birdie will pop up on a frequency but will probably not return to the same frequency the next time the vehicle is started. Relative to the overall operation, The birdie problem on a desired frequency is less than 3% of the time. I think every modern vehicle is going to have some of these... so many computers, so much stuff on in the vehicle just by turning on the ignition key... and lots on even when the ignition's off... I have yet to operate hf on the road from the Cherokee, which makes very a nice service/radio vehicle. I operate 40m mobile from mine using an FT-857 and an ATAS-100. Works well, considering the size of the antenna is piddly for the band. The drive shaft and 4wd front knuckle U-Joints without grease fittings are/were my only complaint. I just had the originals replaced with new Spicer units, which have the much desired grease fittings. Doesn't have anything to do with the radio, but what the heck... Yeah, I just replaced the front left U-joint on mine. Mechanic said it was pretty trashed. I didn't think to look for upgrades, but total with labor was just over $100, so if it lasts another 100,000 miles, I'll be fine with the originals. (GRIN) I recently upgraded the thing to 30 tires, and have a tiny amount of rubbing if the body flexes off-road. I think a 2 lift kit is in this vehicle's future for the repeater site access/rock climber this vehicle is eventually going to become... ;-) Nate WY0X 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/
[Repeater-Builder] Henry UHF PA tuning
Greetings to the group, Does any one have any specific info on retuning a Henry C200D10R UHF 450-470 rack mount PA into the 440 band ? The PA requires 5-10w to produce 100-200w out. I can see nothing inside that is adjustable, all the components are fixed value and securely soldered in place. The only thing that might be adjusted is the spacing of the coils on 4 wire wound chokes, 2 near the input and 2 near the output. The PA belong to a friend who purchased it used from a 3rd party, had it shipped to Henry to put on 443.750, and return for use. A simple bench test into a 50 ohm dummy load shows that (using a IC2400 mobile on low power) 8-9w in at 443.750 yields about 45w out but as I increase the freq. to 462.750 the IC2400 pwr drops to 5-6 w (which I would expect from from the mobile being out of band) but the PA output pwr. jumps to over 100w. My suspicion is that Henry did nothing but make sure it was working in the deigned band range(450-470) and slap a new label on it and send it back. Will compressing the choke coils closer together make any difference in the freq. range, or do some of the fixed components need replacing. I know the choke compression worked in retuning a ARR 450- 470 preamp to move it to 440 (per ARR directions). If so, how close should the coils be spaced ?? TIA for any help Doug N3DAB 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] Henry UHF PA tuning
First thing you need to mention, is did you do this test into an antenna or into a dummy load? If in to an antenna, as the SWR goes up, so will the power. If into a dummy load, then it shows it is narrowed for the 450-470 Mhz band, and it would be best to consult them about it. But from what others have said, there amps are very broad banded, at least all that I have read.Mathew n3dab [EMAIL PROTECTED] wrote: Greetings to the group,Does any one have any specific info on retuning a Henry C200D10R UHF 450-470 rack mount PA into the 440 band ? The PA requires 5-10w to produce 100-200w out. I can see nothing inside that is adjustable, all the components are fixed value and securely soldered in place. The only thing that might be adjusted is the spacing of the coils on 4 wire wound chokes, 2 near the input and 2 near the output. The PA belong to a friend who purchased it used from a 3rd party, had it shipped to Henry to put on 443.750, and return for use. A simple bench test into a 50 ohm dummy load shows that (using a IC2400 mobile on low power) 8-9w in at 443.750 yields about 45w out but as I increase the freq. to 462.750 the IC2400 pwr drops to 5-6 w (which I would expect from from the mobile being out of band) but the PA output pwr. jumps to over 100w. My suspicion is that Henry did nothing but make sure it was working in the deigned band range(450-470) and slap a new label on it and send it back.Will compressing the choke coils closer together make any difference in the freq. range, or do some of the fixed components need replacing. I know the choke compression worked in retuning a ARR 450-470 preamp to move it to 440 (per ARR directions). If so, how close should the coils be spaced ?? TIA for any helpDoug N3DAB 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/ Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1/min. YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Henry UHF PA tuning
Henry uses all fixed capacitors in their amps. Whether they change values for specific band portions, or adjust the coils, is unknown. I bought a C100D10R amp from them and asked that it be tuned to 444.450 MHz and also wanted female N connectors on it. They gave me exactly what I asked for and it gives me 80 watts out with 7 watts in, and that's going into a duplexer then into an antenna. I also had a C80D3 amp on 460-something that I sent to them. They removed the pre-driver (turning it into a C80D10), tuned it to 444.450, Installed female N connectors, and sent it back with a manual and a new power cord, all for about $85. They seem to be very good answering e-mails, so I'd write to them and inquire, but only after verifying that the amp is not performing to specs on the bench with a good dummy load and adequate drive and power. Bob M. == --- n3dab [EMAIL PROTECTED] wrote: Greetings to the group, Does any one have any specific info on retuning a Henry C200D10R UHF 450-470 rack mount PA into the 440 band ? The PA requires 5-10w to produce 100-200w out. I can see nothing inside that is adjustable, all the components are fixed value and securely soldered in place. The only thing that might be adjusted is the spacing of the coils on 4 wire wound chokes, 2 near the input and 2 near the output. The PA belong to a friend who purchased it used from a 3rd party, had it shipped to Henry to put on 443.750, and return for use. A simple bench test into a 50 ohm dummy load shows that (using a IC2400 mobile on low power) 8-9w in at 443.750 yields about 45w out but as I increase the freq. to 462.750 the IC2400 pwr drops to 5-6 w (which I would expect from from the mobile being out of band) but the PA output pwr. jumps to over 100w. My suspicion is that Henry did nothing but make sure it was working in the deigned band range(450-470) and slap a new label on it and send it back. Will compressing the choke coils closer together make any difference in the freq. range, or do some of the fixed components need replacing. I know the choke compression worked in retuning a ARR 450- 470 preamp to move it to 440 (per ARR directions). If so, how close should the coils be spaced ?? TIA for any help Doug N3DAB __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 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/
[Repeater-Builder] Re: Henry UHF PA tuning
As stated in the original message this was into a dummy load. Reflected pwr. was minimal across all the freq's. 440 to 470. If this isnt field correctable it will go back to Henry along with all the bench notes. Doug --- In Repeater-Builder@yahoogroups.com, Mathew Quaife [EMAIL PROTECTED] wrote: First thing you need to mention, is did you do this test into an antenna or into a dummy load? If in to an antenna, as the SWR goes up, so will the power. If into a dummy load, then it shows it is narrowed for the 450-470 Mhz band, and it would be best to consult them about it. But from what others have said, there amps are very broad banded, at least all that I have read. Mathew n3dab [EMAIL PROTECTED] wrote: Greetings to the group, Does any one have any specific info on retuning a Henry C200D10R UHF 450-470 rack mount PA into the 440 band ? The PA requires 5-10w to produce 100-200w out. I can see nothing inside that is adjustable, all the components are fixed value and securely soldered in place. The only thing that might be adjusted is the spacing of the coils on 4 wire wound chokes, 2 near the input and 2 near the output. The PA belong to a friend who purchased it used from a 3rd party, had it shipped to Henry to put on 443.750, and return for use. A simple bench test into a 50 ohm dummy load shows that (using a IC2400 mobile on low power) 8-9w in at 443.750 yields about 45w out but as I increase the freq. to 462.750 the IC2400 pwr drops to 5-6 w (which I would expect from from the mobile being out of band) but the PA output pwr. jumps to over 100w. My suspicion is that Henry did nothing but make sure it was working in the deigned band range(450-470) and slap a new label on it and send it back. Will compressing the choke coils closer together make any difference in the freq. range, or do some of the fixed components need replacing. I know the choke compression worked in retuning a ARR 450- 470 preamp to move it to 440 (per ARR directions). If so, how close should the coils be spaced ?? TIA for any help Doug N3DAB Yahoo! Groups Links - Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1cent;/min. 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/
[Repeater-Builder] Re: Henry UHF PA tuning
Thanks for the input. Doug --- In Repeater-Builder@yahoogroups.com, Bob M. [EMAIL PROTECTED] wrote: Henry uses all fixed capacitors in their amps. Whether they change values for specific band portions, or adjust the coils, is unknown. I bought a C100D10R amp from them and asked that it be tuned to 444.450 MHz and also wanted female N connectors on it. They gave me exactly what I asked for and it gives me 80 watts out with 7 watts in, and that's going into a duplexer then into an antenna. I also had a C80D3 amp on 460-something that I sent to them. They removed the pre-driver (turning it into a C80D10), tuned it to 444.450, Installed female N connectors, and sent it back with a manual and a new power cord, all for about $85. They seem to be very good answering e-mails, so I'd write to them and inquire, but only after verifying that the amp is not performing to specs on the bench with a good dummy load and adequate drive and power. Bob M. == --- n3dab [EMAIL PROTECTED] wrote: Greetings to the group, Does any one have any specific info on retuning a Henry C200D10R UHF 450-470 rack mount PA into the 440 band ? The PA requires 5-10w to produce 100-200w out. I can see nothing inside that is adjustable, all the components are fixed value and securely soldered in place. The only thing that might be adjusted is the spacing of the coils on 4 wire wound chokes, 2 near the input and 2 near the output. The PA belong to a friend who purchased it used from a 3rd party, had it shipped to Henry to put on 443.750, and return for use. A simple bench test into a 50 ohm dummy load shows that (using a IC2400 mobile on low power) 8-9w in at 443.750 yields about 45w out but as I increase the freq. to 462.750 the IC2400 pwr drops to 5-6 w (which I would expect from from the mobile being out of band) but the PA output pwr. jumps to over 100w. My suspicion is that Henry did nothing but make sure it was working in the deigned band range(450-470) and slap a new label on it and send it back. Will compressing the choke coils closer together make any difference in the freq. range, or do some of the fixed components need replacing. I know the choke compression worked in retuning a ARR 450- 470 preamp to move it to 440 (per ARR directions). If so, how close should the coils be spaced ?? TIA for any help Doug N3DAB __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 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/
