449.5875 NFM

[Minus1]

Picked up transmissions on 449.5875 NFM this morning, as I have before during lift conditions.
Presumably military, the controller seemed to think someone was mis-keying their radio, until eventually realising it must be interference.
No CTCSS was used; the interference suggested it must half of a base-mobile pair, and interference on the mobile freq (whatever that is) was triggering the repeater.

Anyone know where this comes from?
At the same time I was picking up dx signals East & South of Birmingham, in a wide arc from Coningsby to Salisbury Plain.

[thelad]

Is that not an MOD Polycon frequency.

[Minus1]

I didn't say it was a Polycon frequency.
It is however, in a military band.

[AndrewIrvine]

The 449 Polycons I have listed, I've had these for years are

449.5375 SAR Onboard
449.5875 SAR Onboard
449.6875 SAR Onboard
449.7375 Polycon
449.9065 Polycon


The 417's / 419's are

417.500 Winch Comms
417.525 Winch Comms
419.1125 Winch Comms
419.1375 Winch Comms

I also Googled the frequency and found 449.5875 on another site as onboard Polycon being used on it

[thelad]

The 449 Polycons I have listed, I've had these for years are

449.5375 SAR Onboard
449.5875 SAR Onboard
449.6875 SAR Onboard
449.7375 Polycon
449.9065 Polycon


The 417's / 419's are

417.500 Winch Comms
417.525 Winch Comms
419.1125 Winch Comms
419.1375 Winch Comms

I also Googled the frequency and found 449.5875 on another site as onboard Polycon being used on it

I have the same logged, most of the 449 ones were used by the old Seakings.

[Minus1]

I too have had multiple reported "Polycon' frequencies in my scanners for years. The vast majority have been dead.

I have heard RN / RM landing craft using 419.1125 on two occasions — at opposite ends of the UK.

What I was getting on Wednesday and Thursday was definitely not Polycon.

The word "barrier" was mentioned several times, but nothing else useful.