How to Program the ISS Repeater Frequencies into your Baofeng UV5R

In this one, we get our radios programmed and ready to go ISS Hunting
Frequencies:
437.810
437.805
437.800
437.795
437.790
145.990
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[@ronpressley7995]

I thought there had to be a sub audible tone on transmit. (67hz)?

[@temporarilyoffline]

You are right, I got bad information and passed it on... I'll be making an update

[@1925sk]

How about the up-link freq. in each channel?

[@temporarilyoffline]

Sure, the update is here: kzbin.info/www/bejne/n5mmY4xmrstrrZo

[@58Alpha]

Where did those frequencies come from, because what I researched online was: Voice and SSTV Downlink: 145.80 (Worldwide), Voice Uplink: 144.49 for ITU Regions 2 and 3 (The Americas) The downlink is the earth station's receiving frequency. The uplink is the earth station's transmitting frequency. Earth stations can listen to the downlink frequency and transmit on the uplink frequency. Is this not correct?

[@temporarilyoffline]

There are many sources online - give them both a try and see what one works for you.

[@itrstt66]

Uplink 145.990M Hz FM with 67.0 Hz PL ; what does the 67hz mean?

[@temporarilyoffline]

67hz is the frequency of the sub-audible tone that will tell the ISS repeater that you really mean to talk to it and not to your neighbor down the street. Its not really any kind of privacy, just a way to signal/rx a signal and know that it belongs to you.

[@itrstt66]

@@temporarilyoffline nice thank you

[@billdomb]

for RECEIVING, let's say, with a rubber ducky, would it be better to point the antenna AT the ISS or at right angles to it?

[@temporarilyoffline]

Since the ISS is rotating, you'll have to rotate the antenna. Try it both ways when you hear something and see how it sounds. I don't know if you'll ever find a perfect match... the ultimate game is a circularly polarized antenna

[@stater3]

Can you use a regular radio scanner to receive and then transmit with your other radio? For the scanner use it in scanning mode or manual mode. Just thought of it cause I already have a scanner. Thanks for the video and another subscribe and like button to press.

[@temporarilyoffline]

Yes, there are no rules that say you have to use only one radio. In reality, a lot of satellite work is done on a pair of radios.

[@stater3]

@@temporarilyoffline Sounds good thank you.

[@sondrayork6317]

I have a baofeng uv5r and the whistler ws1030 handheld service monitor. With a telescopic whip antenna.

[@temporarilyoffline]

That should work nicely

[@1961markc]

Will just a 2 meter yagi work or do you need 2 meter 70 centimeter ? Thanks Mark KE8PHJ

[@temporarilyoffline]

From what I understand people are using rubber ducks

[@darkynhalvos]

Personally I was able to get a very good recieve signal fotlr maybe a couple minutes, using a Nagoya 771 antenna. No idea if anyone heard my call though. 73 K4EFW

[@ImranKhan-jt7xu]

what happened to 144mhz and 145.800mhz? Are they still active for listening today?

[@temporarilyoffline]

The APRS repeater is up, but the FM is only active when the astronauts have time to play.

[@ImranKhan-jt7xu]

@@temporarilyoffline what frequency dude

[@temporarilyoffline]

I'd start with the ones you listed and wait for the space station to be overhead. @@ImranKhan-jt7xu

[@ImranKhan-jt7xu]

@@temporarilyoffline okay, thanks dude

[@AdamosDad]

73's🎙KD9OAM🎧📻📡 🚧

[@temporarilyoffline]

73s!

[@itrstt66]

why arent you putting the itu region frequencies as well?

[@temporarilyoffline]

because I didn't.

[@redacted_platypus]

Is there a PL tone I need to be able to hear and transmit to them successfully or is it purely just the frequencies?

[@temporarilyoffline]

There is, I need to make an updated video: kzbin.info/www/bejne/n5mmY4xmrstrrZosi=9HDfimujAPzHmZPO

[@rafaelchilelli3588]

67.7 subtone

[@temporarilyoffline]

Thanks: kzbin.info/www/bejne/n5mmY4xmrstrrZo I should remake this vid.

[@TheSmokinApe]

Good stuff TO 👍

[@temporarilyoffline]

I'm hunting it down!

[@denislacroix654]

Hum! Does Doppler apply to your transmit frequency as well?

[@temporarilyoffline]

Not enough -- people generally don't bother with it.

[@michaelmeyer2725]

Yeah this is a gravedig... :) So I'm clear, I should be transmitting up to the ISS on the 2m and listening for the response on the 70cm?

[@temporarilyoffline]

You got it! TX on 2m, RX on 70cm.

[@michaelmeyer2725]

@@temporarilyoffline Nice. There's a pass in an hour so I'm gonna attempt it with my rubber duck. I don't expect success but hey, worth a shot.

[@temporarilyoffline]

@@michaelmeyer2725 definitely, it can be done with the duck, but you really need a mic so you can aim the antenna without hurting your neck. Good luck! Let me know how it goes!

[@michaelmeyer2725]

@@temporarilyoffline Didn't contact the ISS tho we were definitely hearing others talking off the repeater. I'm in Southern PA and heard someone from Florida relatively clearly. We had some cloud cover too so that might have contributed. There's another pass in an hour but it's not nearly as good as this one was (went directly overhead) so I might be done til after the holidays. My son thought it was cool as heck tho. (He's 7.) Appreciate the help. 73 Mike KC3AIL

[@temporarilyoffline]

@@michaelmeyer2725 that's awesome, one step closer! Did you see the follow-up video about the CTCSS tones?

[@jamesmoore4003]

I don’t what I’m doing wrong but every time I program a frequency into my Baofeng I have yet to hear anything coming through the radio. The only voice I’ve been able to pick up is the weather station. And the FM radio stations.

[@temporarilyoffline]

Weird. For me that happens when I put the tones on the wrong side of the repeater. Is there a local ham that can help out?

[@jamesmoore4003]

@@temporarilyoffline I think I finally got it figured out…thanks

[@AGENT47ist]

So how did you program your baofeng radio to pick up the iss?

[@fredbissnette3104]

do you need the pl tone on both rx and tx(70cm) or just tx(2m)

[@temporarilyoffline]

Just TX, tone 67

[@fredbissnette3104]

@@temporarilyoffline ty!

[@pedersteenberg2010]

NOT LEGAL?

[@temporarilyoffline]

What's not legal?

[@pedersteenberg2010]

@@temporarilyoffline HACK iss shouldnt be lagal or?

[@temporarilyoffline]

@@pedersteenberg2010 No hacking. It is perfectly legal for a properly licensed ham to use the repeater on the space station, listen in to the SSTV transmissions, relay APRS through the ISS digipeater or talk to the astronauts when they decide to use their ham licenses. Have fun!

[@DARTHDANSAN]

ISS app shows you the space station is located in real time