52.525 simplex

Discussion in 'On-Air Operations - Q&A' started by K8JD, Jul 17, 2021.

ad: L-HROutlet
ad: l-rl
ad: Left-2
ad: Left-3
ad: L-MFJ
ad: L-Geochron
ad: l-BCInc
ad: abrind-2
  1. WB8VLC

    WB8VLC Ham Member QRZ Page

    Here in Oregon and at my AZ QTH it certainly is a shift towards hams becoming FT8 users whereas in years past they were prior FM users.

    At both locations hams who used to frequent my 6 and 10 meter remotes and our high mountain linked Arizona 6 meter repeater are now spending their time on 50.313 and 28.074.
  2. KA9JLM

    KA9JLM Ham Member QRZ Page

    In the day, You could tell if 6 meters was open when your TV started receiving many stations on Channel 2.

    I think Channel 2 was also the channel to watch for near by Tornadoes, Or channel 3 if 2 was in use. The noise pattern would change.

    Cool Stuff.
    KG4HRU and K3RW like this.
  3. W7IMM

    W7IMM Premium Subscriber QRZ Page

    There's still a fair amount of 6m activity in the PNW.

    There's still a group (members in Seattle/Tacoma areas) that gets on 50.400 AM every WED and SUN nights at 2100L

  4. WB6TIX

    WB6TIX Ham Member QRZ Page

    Whenever I was within range of the Prescott 6m repeater, I would make calls, but I never had any luck getting a response.

    When I was in high school, I was given a not well functioning (10uV for 20dB quieting receiver) low band commercial radio which was mounted in a GE Deskmate cabinet (!). Someone had shimmed the power supply out from the rack rails so the cabinet doors would close, so there was an effort to do this. The radio was on 39MHz and I moved it to 6 meters. In the process I found a bad coupling cap between the tuned circuits in the 1st IF and fixed the poor sensitivity problem. I tried the radio a few weeks ago into a service monitor and it was on frequency, put out 65 watts with good deviation and the receiver sensitivity was around .2uV for 20dB quieting. Even the DC remote worked. :)

    I (my parents, too) lived atop a hill and, depending on the direction, talking to mobiles 50-75 miles distant was no problem.

    In 1979, when I moved to Tempe, AZ to go to ASU, I left that 6FM radio for my mom (WB6PAH, now SK) and she used it a lot. I then picked up the stuff needed to make another radio and moved it to 6FM. Myself and half a dozen other hams used 52.525 as sort of an intercom. The radio got the room hot, so I moved them out into the storage shed and remoted them into the house...problem solved!

    I found a low band Moto G strip, moved that to 6 meters and found an inverter module for the receiver and put that into my VW bug. I eventually "graduated" to a U71LHT Motrac for the house and a 100 watt GE MASTR PRO for the VW bug. The 100 watt radio in the car would reset the gas pump displayes, which made the gas station operators kind of annoyed. :)

    I still listen to 52.525 in the car and truck (Yaesu FT-8900) and I have an Alinco in the house that sits on 52.525, but it's rare that I hear anyone. I still have hopes that I will hear somene on there as I will always "have a soft spot in my heart" for 52.525 FM. :)
    KE8OKM likes this.
  5. W7IMM

    W7IMM Premium Subscriber QRZ Page

    That's absolutely true. The entire cell-phone and VHF/UHF Land mobile (LMR) industry "switched " to digital audio years ago.

    It's no surprise that (obsolete) analog voice modes are dwindling. Case in point, MF/HF SSB for Marine and Aviation over-water position reporting etc, are dwindling and fast becoming "backup" for SATCOM

    Eventually, the major users of HF SSB will be amateur radio. And digital audio is entering there too with DSTAR and FREEDV.

    Recently, (opensource) FREEDV was shown to be nearly as reliable as SSB for low signal HF communications. It's not "there" yet, but it eventually will be as will other proprietary copyrighted digital voice codecs.


    I'll still, however, continue to get on 160, 75 and 40M AM with my EF Johnson Viking Valiant and SX-101 Mark III


  6. KC7JNJ

    KC7JNJ Ham Member QRZ Page

    I bet that changes when things get hot.... Things are even shaking yet. last time things got hot I worked a local 6m FM repeater here in Wenatchee Washington and talked to a fellow ham and Alliance Nebraska.
  7. K4RGN

    K4RGN Premium Subscriber QRZ Page

    I keep 525 on my scanner. A few years ago I heard a crackle and quickly put my 6m rig on 525. It was a mobile in Toronto, solid 59 signal, over 700 miles away. With 6m you never know.

    That said, 525 traffic in my local area is rare. There are two 6m repeaters here and they do attract usage. The locals who want simplex contact usually get on 50.400 AM.
  8. KC7JNJ

    KC7JNJ Ham Member QRZ Page

    @K4RGN we do the 50.400 AM thing here too.
  9. KI4POT

    KI4POT Ham Member QRZ Page

    I may be in your region during the January VHF contest. I'll hop on 52.525 FM and maybe even 50.400 AM. 5w HT, but maybe you'll hear me (I'll be about 50 miles from your locale).

    KC3PMJ likes this.

Share This Page