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Re: 2m QRM
Don Goodhart
Hello Everyone;
? ? ?I too am using the Diamond 400S on a 2008 Hummer H3. I was having trouble with the HSWR until I installed Grounding Braid to all Doors, rear Hatch/door, front hood. The main issue was ground.? My SWR NOW 1.1, With less than a 1/8th of a Watt reflection. I am currently using a YAESU FT-857 WITH ATAS-120A AS ANTENNA.? AND NOW TUNES from 440 to 7.175 mhz (All Area of the ATAS-120A turning) -- Thank You Don Goodhart N6eur0u8@... |
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Re: FT-857D External ALC
The manual isn't very clear on this. Here is some info on wiring for an amp, though: 73, Zack W9SZ On Mon, Oct 10, 2022 at 3:19 PM Dave Mueller AA3EE <dmueller421@...> wrote:
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Re: 2m QRM
开云体育I've used the Diamond K-400S mount on my last several cars (Cadillacs, Mercedes, Lincoln Continental), all with voluminous electronics, and have had no interference to an FT-857D on either HF or V/UHF.? The antenna is a Diamond dual-band 5/8th wave mounted on the rear deck lid.? Coax is whatever was supplied with the mount (13.6 feet), long enough to reach the driver's seat.? The transceiver lays on the floor underneath the driver's seat with the control-head clipped to an air-conditioner outlet using a PRO-CLIP mount.? No Screws, no adhesives, no restricted air flow, no ferrites.73, Kent K9ZTV |
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Diamond Antenna MX62M
Is this a good duplexer for the ATAS-120 and 857? I am putting it on my Catrike Expidition?for when I am cycling.? Ad Jesum per Mariam Charles Watts / W6SOM “Has it ever struck you that the trouts bite best on the Sabbath? God's critters tempting decent men”? ?-James M. Barrie author Peter Pan |
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Re: YAESU FT-857 Discussion Group - Digest #548
Thanks to all. I will see about the ceramic filters. Thanks again :-) 73 Xavier ON4XA
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Re: 2m QRM
开云体育Does it change at all with the attenuator swirched in?? I don't remember if the preamp (IPO) can be switched off on 2M.? But I would try toggling that.? If I had to guess, I would say that the preamp (or some other stage unique to 2M) is oscillating.? Probably need to send it in for repair.? I have used HamRadioRepair.com quite successfully in the past.? Ron Jakubowski, K2RJ? Tab? S5e |
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Re: 2m QRM
Bad ceramic filters should be apparent on all bands in the same mode as 2 meters as that part of the IF is common to VHF/UHF and HF.?
It would also be apparent if the radio is operated from the home QTH away from the car. It is possible to be a cause of the noise, but is less prevalent in radios with the new style ceramic filters. |
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Re: 2m QRM
开云体育Agree with Alfred, Bad Ceramic filter can cause this problem, S meter should be close to zero with no antenna. It also sounds like you have an antenna ground issue. Jack W4GRJ On Oct 10, 2022, at 7:12 AM, DL0PAF <dl0paf@...> wrote:
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Hi Xavier, perhaps, this is the reason. Look there: 73 Alfred- DJ0GM Xavier Amand schrieb am 10.10.2022 um 11:51:
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Re: 2m QRM
What car??
New cars have so many electronics built in that they can be a problem. I have a friend with a 2007 Jeep Wrangler that horrendous noise on 2 meters and he had a bad antenna cable on his new magnetic antenna.? Are you pulling power directly from the battery? Do you have any ferrite choles on the power line? Do you have any over the VHF/UHF feed line? The fix for my friend was to install a diamond antenna on the bike rack? at the rear of the car with a good coax feedline. The rear location was far enough away from the electrical hash to work. He mounted the radio in the rear and a cable to the front panel on the dash. That radio was a TM-D710GE.? |
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Re: 2m QRM
开云体育Hi Xavier, perhaps, this is the reason. Look there: 73 Alfred- DJ0GM Xavier Amand schrieb am 10.10.2022 um 11:51:
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Re: 2m QRM
开云体育Hello Xavier,For clarification it is not QRM…..QRM is interference from adjacent ham stations or other RF signals. You have man made noise RFI, from your vehicle. This can sometimes be very difficult to eliminate. Usual related to poor grounds on the vehicle. First make sure your antenna mount is well grounded to vehicle. If you are using magnetic mount that is the problem.? Next is where it can get very frustrating. you need to make sure all doors, hatch, car hood are well bonded to car frame. This is a good primer on the subject of RFI RFI youtube? Good Luck Jack W4GRJ ><))):> On Oct 10, 2022, at 5:51 AM, Xavier Amand <on4xa.xavier@...> wrote:
? Dear all,
I have QRM 5/9+. Whether the antenna is on the roof of the car. Same with the Atas 120A. My tests : I disconnected the antenna. Car engine shut off. S4 to 5 of QRM. Engine on, S7. With antenna?: S8 to 9+? I took my portable, I went around the car, outside and inside. QRM: 0 The concern therefore comes from the Yaesu 857D. I looked in the manual. I didn't find?a?solution. I reset the Yaesu. Nopes. I hope someone will have a solution for me. Thanks in advance. Best regards. Vy 73's Xavier Amand -?ON4XA ? ?? Secretary of ON6SD belgian Sugar Delta Ham radio club ? UBA-UFRC-EURAO member Rue de Bouillon 250 B-5574 Beauraing - Pondr?me Belgium Tel: +32 496 32 22 22 Fax : +32 82 22 78 69 |
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2m QRM
Dear all, I have QRM 5/9+. Whether the antenna is on the roof of the car. Same with the Atas 120A. My tests : I disconnected the antenna. Car engine shut off. S4 to 5 of QRM. Engine on, S7. With antenna?: S8 to 9+? I took my portable, I went around the car, outside and inside. QRM: 0 The concern therefore comes from the Yaesu 857D. I looked in the manual. I didn't find?a?solution. I reset the Yaesu. Nopes. I hope someone will have a solution for me. Thanks in advance. Best regards. Vy 73's Xavier Amand -?ON4XA ? ?? Secretary of ON6SD belgian Sugar Delta Ham radio club ? UBA-UFRC-EURAO member Rue de Bouillon 250 B-5574 Beauraing - Pondr?me Belgium Tel: +32 496 32 22 22 Fax : +32 82 22 78 69 |
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Re: *%& Baud rate
Joshua KJ7LVZ
On Sat, Oct 8, 2022 at 09:22 PM, HB wrote:
The packet setting should be set to 9600 baud. It has nothing to do with the CAT baud rate.?Yes, what HB said.? The baud rate selected uses a different pin for 1200 or 9600. The amplitude of the audio signal is different between the two, that's all I could find when searching years ago.? Joshua KJ7LVZ |
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Re: *%& Baud rate
开云体育The packet setting should be set to 9600 baud. It has nothing to do with the CAT baud rate.? Make sure your 6 pin data cable is wired for the 9600 baud pin on the 857. Some cables have both the 1200 and 9600 baud pins wired. My experience with the 857D has shown that both pins wired together will degrade the received signal.? Make sure you have a good sound card that can perform for FM wide. Most signalinks have too narrow a range unless it’s the newer design. I’ve had excellent luck with the Masters Communications boards and the Timewave Navigator and PK-232sc+.? Good luck.? K4HYJ? On Oct 8, 2022, at 10:04 PM, KE5EOT <ke5eot@...> wrote:
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Re: *%& Baud rate
开云体育Option 19 sets the CAT baud rate. The options are 4800, 9600, and 38400. Optipn 73 sets the packet baud rate. The options are 1200 and 9600. I'm not sure which one VARA Wide uses.Randy (KE5EOT, WRJS252) ARRL, QCWA, ARES, RACES, ROWH On 10/8/22 7:44 PM, L B Little wrote:
I am wanting 10 use my FT-857D for VARA Wide. Is there a baud rate setting in the 857 to change it t0 9600? |
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Re: *%& Baud rate
开云体育There is a menu setting to change baud rate. Refer to the menu settings in the user manual. If memory serves me correctly, you only have selection of 4800, 19200 and 38400On Oct 8, 2022, at 17:58, John <ve3kkqve3kkq@...> wrote:
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