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Author Topic: JFK Approach CAMRN now on 118.4?  (Read 5849 times)

Offline wiedehopf

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JFK Approach CAMRN now on 118.4?
« on: October 12, 2017, 12:45:54 PM »
as the title says, camrn approach now seems to be on 118.4 which is covered as ROBER(backup) but as 125.7 and 118.4 are often active at the same time you get a strange mix of both frequencies.

Does the CAMRN receiver receive 118.4? If so, a changeover would be appreciated :)

(i think i heard a controller say "sorry i gave you the old frequency")



Offline dave

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Re: JFK Approach CAMRN now on 118.4?
« Reply #1 on: October 12, 2017, 01:10:45 PM »
as the title says, camrn approach now seems to be on 118.4 which is covered as ROBER(backup) but as 125.7 and 118.4 are often active at the same time you get a strange mix of both frequencies.

Does the CAMRN receiver receive 118.4? If so, a changeover would be appreciated :)

(i think i heard a controller say "sorry i gave you the old frequency")

118.4 was always a spare for ROBER. This may just be a temporary change for today.  That receiver is not remotely programmable and usually with New York TRACON we have to carefully verify whether frequency changes are permanent or temporary. I was listening to ROBER earlier and I heard the controller switch some of the pilots to 118.4 but it was still the ROBER controller working those flights. Now the CAMRN controller is using 118.4.

We’ll try to find out more but if someone has time to go through some of this week’s archives perhaps there are some clues.

Offline wiedehopf

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Re: JFK Approach CAMRN now on 118.4?
« Reply #2 on: October 12, 2017, 01:33:02 PM »
ty for the quick answer ;)

128.125 is still transmitting simulcast with 118.4 so could well be sth temporary.

i've listened quite a bit this week and no solid clues if it's permanent.
maybe my post sounded a bit too demanding sorry for that, not what i meant.
there are always other frequencies and quite a lot transmissions are heard anyway on the other feed.
we'll see in a few weeks if it's permanent.

(offtopic: yesterday some crews were quite challenged having to chose between Parkway Visual and RNP 13L; but after some discussion found and managed the Parkway Visual just fine :)

Offline JetScan1

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Re: JFK Approach CAMRN now on 118.4?
« Reply #3 on: October 12, 2017, 06:37:08 PM »
Just checking some archives it sounds like things started to change on Oct 09. On the 9th at 20Z 128.125 was active and they were using 118.400 for the final position (usually 132.40). Then on Oct 10th, 128.125 was active in the morning until 11Z then it went dead (nothing heard) until 1607Z when it came back for a bit until 1627Z when the controller started offloading traffic to 118.400 (same controller) then continued to simulcast until 1635Z when it went dead again, then at 1807Z you can hear the FAA do a test count twice on 128.125, then at 1833Z came back with the controller asking a Delta flight to switch from 118.400 to 128.125 for a radio check and asking the flight if they were hearing any interference, then shortly after started using 128.125 again for aircraft. So sounds like some sort of interference issue on 128.125.   

JS

Offline dave

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Re: JFK Approach CAMRN now on 118.4?
« Reply #4 on: October 14, 2017, 07:57:52 AM »
Just checking some archives it sounds like things started to change on Oct 09. On the 9th at 20Z 128.125 was active and they were using 118.400 for the final position (usually 132.40). Then on Oct 10th, 128.125 was active in the morning until 11Z then it went dead (nothing heard) until 1607Z when it came back for a bit until 1627Z when the controller started offloading traffic to 118.400 (same controller) then continued to simulcast until 1635Z when it went dead again, then at 1807Z you can hear the FAA do a test count twice on 128.125, then at 1833Z came back with the controller asking a Delta flight to switch from 118.400 to 128.125 for a radio check and asking the flight if they were hearing any interference, then shortly after started using 128.125 again for aircraft. So sounds like some sort of interference issue on 128.125.   

JS

Thanks JS...the last time that N90 area did a frequency change it was due to interference. Radio frequency interference in the NYC area can be a nightmare. Will continue to monitor for a couple of days to see how this plays out and then will get radios modified. Appears that 118.400 will need to be removed from ROBER and added to JFK Final.

Offline JetScan1

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Re: JFK Approach CAMRN now on 118.4?
« Reply #5 on: October 14, 2017, 08:45:50 AM »
Quote
Appears that 118.400 will need to be removed from ROBER and added to JFK Final.

The only time I heard 118.400 used for Final was briefly on the 9th. The interference problem seems to be with 128.125, and all the times I've checked since they have been using 118.400 in place of 128.125. So makes more sense to add 118.400 to the CAMRN radio, from what I've head so far anyway. I'll take a closer look at the archives next week and see what they have been doing.

JS

Offline dave

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Re: JFK Approach CAMRN now on 118.4?
« Reply #6 on: October 14, 2017, 08:57:21 AM »
Quote
Appears that 118.400 will need to be removed from ROBER and added to JFK Final.

The only time I heard 118.400 used for Final was briefly on the 9th. The interference problem seems to be with 128.125, and all the times I've checked since they have been using 118.400 in place of 128.125. So makes more sense to add 118.400 to the CAMRN radio, from what I've head so far anyway. I'll take a closer look at the archives next week and see what they have been doing.

JS

OK...let's keep an ear on it...it's difficult to make changes for the involved receivers so I want to do it once.

Offline wiedehopf

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Re: JFK Approach CAMRN now on 118.4?
« Reply #7 on: October 16, 2017, 02:24:00 PM »
and it's back to 128.125 :)
sry for making a fuzz ^^ next time i'll wait a week or two.

while i'm making a fuzz:
the jfk tower main feed has a squelch issue with 119.1
compare
http://archive-server.liveatc.net/kjfk/KJFK-Twr-Oct-16-2017-1700Z.mp3
http://archive-server.liveatc.net/kjfk/KJFK-Twr-1191-Oct-16-2017-1700Z.mp3
http://archive-server.liveatc.net/kjfk/KJFK-Twr-1239-Oct-16-2017-1700Z.mp3

or listen to my attachment, the main tower stream is in stereo while 119.1 plays on the left channel only and 123.9 plays on the right channel only.
so if you hear something only in your left ear the main stream didn't capture it.

nothing that needs urgent fixing as there is a second stream :)

also the middle of the 3 tower feeds is actually tuned to ground, maybe you want to rename that.
(https://www.liveatc.net/flisten.php?icao=kjfk&mount=kjfk9_twr)

Offline JetScan1

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Re: JFK Approach CAMRN now on 118.4?
« Reply #8 on: October 16, 2017, 05:24:29 PM »
Quote
and it's back to 128.125

Except the CAMRN controller on 128.125 is still simulcasting on 118.400 (as of today at 2100 UTC). If they keep that up then would still help if 118.400 was moved from the ROBER to CAMRN radio. See how long this lasts ? 

JS

Offline wiedehopf

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Re: JFK Approach CAMRN now on 118.4?
« Reply #9 on: October 18, 2017, 03:36:14 PM »
i mentioned in the earlier post the tower feed kjfk9_twr was ground.

now i found the reason: it's swapped with kjfk9_gnd where tower is broadcasting :)

and right now somehow the reception of that kjfk9 receiver seems to be better than the main feeds.
maybe slightly more static but no lost transmissions.

Offline wiedehopf

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Re: JFK Approach CAMRN now on 118.4?
« Reply #10 on: October 19, 2017, 01:39:54 PM »
and no simulcasting as of now. everything where it belongs :P

and ty for switching kjfk9 twr and gnd

regards

Offline dave

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Re: JFK Approach CAMRN now on 118.4?
« Reply #11 on: October 19, 2017, 01:42:52 PM »
and no simulcasting as of now. everything where it belongs :P

and ty for switching kjfk9 twr and gnd

regards

Thank you for the report. A cable must have been swapped by accident.  :-)

Offline dave

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Re: JFK Approach CAMRN now on 118.4?
« Reply #12 on: October 25, 2017, 08:12:40 PM »
118.4 has been removed from ROBER and moved to CAMRN.

Offline Lynch_Christopher

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Re: JFK Approach CAMRN now on 118.4?
« Reply #13 on: February 21, 2018, 05:08:20 PM »
Came across this in the NOTAMS for both JFK and FRG

FDC 8/4279 - CHART REPUBLIC, Farmingdale, NY.
PAWLING TWO ARRIVAL  (PWL.PWL2) ...
CORRECT COMMUNICATIONS DATA: CHANGE NEW YORK APP CON FREQUENCIES TO
READ 133.1  343.65 INSTEAD OF 128.125  269.0. 01 FEB 12:49 2018 UNTIL PERM.
CREATED: 01 FEB 12:49 2018


Offline wiedehopf

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Re: JFK Approach CAMRN now on 118.4?
« Reply #14 on: February 21, 2018, 05:45:50 PM »
only for the one arrival though.

Lendy arrival has 128.125 too but no NOTAM for that one.

strange.