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Showing content with the highest reputation on 11/30/20 in Posts

  1. WRAK968

    Mods.dk hacked

    This morning I received an e-mail from Mods.dk about a hacker who gained access to information on their website. I know there are some users of that site here so I figured I would post the announcement here just in case anyone missed the e-mail: I’m very sorry to inform you that a hacker for about 2 days ago have had success to upload a script to mods.dk, and run the script. Which information the hacker has stolen is not possible to see at the moment, but the most sensitive information that you have placed on mods.dk is your email address, and password that you are using to access mods.dk. If you have made money donation all information about your credit card/payment method, has been handle by PayPal, and this information is never been transferred to mods.dk. Your password is encrypted in the database, so the hacker cannot read your password direct, but the hacker can try to compare the encrypted password with a password they try, and with a computer they can compare many password in a sort time. So I will recommend you to change your password on mods.dk and if you are using the same password other places also change the password there. Use always different password every places. The hacker have upload a picture and then they have execute the picture and it has create a script they could execute. So by an consequence of this, upload of pictures and files is only allowed when you have been approved. I will approved all existing users that already have uploaded pictures and files, but in case you don’t have permission, then just contact mods.dk. I’m sorry for this trouble but I hope you still want to support my site, this site is only a hobby project just like my amateur radio, and my resourced are limited. If you want all your data deleted form mods.dk you can go to “my account” and said that you want to be deleted. Best regardsErik Hansenhttps://www.mods.dkNote this message in send from a non-monitored mailbox and replies will never been read, so if want in contact then you must go to the homepage.
    1 point
  2. Search this forum. You will see that this idea has been proposed, and even started, several times. However, for whatever reason, the effort soon becomes abandoned. Perhaps if someone was willing to actually take on the task, and approach Rich (WQEJ577) it might work. However, as long as the implementation depends on the efforts of others, it is not likely to be sustained.
    1 point
  3. wayoverthere

    Midland Ad

    (ii) is the one you're thinking of related to ham equipment. the closed to ARRL i see is (iii) under a definition of "teaching" §97.113 Prohibited transmissions. (3) Communications in which the station licensee or control operator has a pecuniary interest, including communications on behalf of an employer, with the following exceptions: (i) A station licensee or station control operator may participate on behalf of an employer in an emergency preparedness or disaster readiness test or drill, limited to the duration and scope of such test or drill, and operational testing immediately prior to such test or drill. Tests or drills that are not government-sponsored are limited to a total time of one hour per week; except that no more than twice in any calendar year, they may be conducted for a period not to exceed 72 hours. (ii) An amateur operator may notify other amateur operators of the availability for sale or trade of apparatus normally used in an amateur station, provided that such activity is not conducted on a regular basis. (iii) A control operator may accept compensation as an incident of a teaching position during periods of time when an amateur station is used by that teacher as a part of classroom instruction at an educational institution. (iv) The control operator of a club station may accept compensation for the periods of time when the station is transmitting telegraphy practice or information bulletins, provided that the station transmits such telegraphy practice and bulletins for at least 40 hours per week; schedules operations on at least six amateur service MF and HF bands using reasonable measures to maximize coverage; where the schedule of normal operating times and frequencies is published at least 30 days in advance of the actual transmissions; and where the control operator does not accept any direct or indirect compensation for any other service as a control operator.
    1 point
  4. More importantly I just finished reading your explanation. Thank you for the clarification. The desense phenomenon is a new one for me. I'll mess around with it a bit more tonight with some meaningful space between the two radios and see if that makes a meaningful difference and report back here once I have something to say. Thanks again
    1 point
  5. Wideband has a slight advantage (3dB) over narrowband when it comes to sensitivity. Cutting the bandwidth in half requires 6dB more power to get the same signal-to-noise ratio, but 3dB comes from having the noise power on the narrower receive IF filter. On business radio systems, this may not matter; but on GMRS, the users tend to be dispersed further as operating area isn't constrained by the license and minimal frequency coordination takes place. This effect also causes mobile flutter to be more pronounced. On modern commercial radios designed for narrowband use, the strong-signal voice quality doesn't take much of a hit when moving to narrowband channels. We can't get any more pairs because FRS is already authorized for the 467 MHz interstitials. We'd need to go to 6.25 kHz ultra-narrowbanding (NXDN48 or dPMR) and use some odd channels (462.546875, 462.553125, 462.559375, ...), which won't happen anyways because digital voice isn't allowed. Adjacent ultra-narrowband channels would also interfere unless frequency accuracy is well-controlled, which raises equipment cost considerably (particularly for portables) and requires realignment during the equipment's service life. Additionally, wideband users would take interference from any of four ultra-narrowband channels, and narrowband users would take interference from any of two ultra-narrowband channels. The end result is even less voice capacity than before, unless everyone goes ultra-narrowband and maintains their equipment to high standards. The repeater operator always has the option to narrowband should they want to, but there's no benefit unless there's significant adjacent-channel interference, all of the radios are properly configured for narrowband (travelers are probably not), and the radios used on the system have proper 12.5 kHz IF filters (the GMRS-V1 does not). A narrowband mandate would also screw up equipment certifications and cause the FCC to get a big headache over something that is not really a problem at all.
    1 point
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