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Topics - Ed H

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HF Beacons / 4663 kHz dash/chirp
« on: June 11, 2023, 2015 UTC »
I'm hearing a rough chirp beacon/marker  at 4553 kHz (USB). This repeats approximately on a 4 sec period. There's a slight descent in th enote, which is also wavery/fluttery. Additionally, the starting pitch seems to vary a little.  Peaking arounf S5 received on the random wire dipole.

22 Meter Band HiFER Beacons / Strong RTTY or similar on 22m
« on: March 17, 2023, 1850 UTC »
Hi Folks,

Lately, I've been noticing strong RTTY (or similar FSK mode) signals within the ISM 22m band - at least two sources were apparent last weekend (11/12 March 23). Please add your observations to this thread.



22 Meter Band HiFER Beacons / Whooper
« on: October 31, 2022, 1709 UTC »
Observed 30th Oct 22 "Whooper" signal Circa 13,555.200. A rising tone when heard in USB mode. Seems to be on for a short while, 5-10 minutes then disappear, rather than fade in and out.


22 Meter Band HiFER Beacons / Midnight Hifers
« on: May 25, 2022, 1615 UTC »
I've been allowing my receive setup to run overnight at weekends, with some interesting results seen, on occasion, through the night. More details are available, along with screenshots, over at LWCA.

It's not uncommon at the moment to see longer path HiFERs here at my NorCal QTH late into the evening and sometimes into the early hours.

22 Meter Band HiFER Beacons / HiFER Screenshots from 10 April 2022
« on: April 12, 2022, 2316 UTC »
Reception improved markedly in the (local) afternoon and evening of 10 April here in Northern California. Screenshots (and WSJT) captured several HiFERs:

Those can be seen over at LWCA.org: https://www.lwca.net/mb/msg/12547.htm

22 Meter Band HiFER Beacons / PCO, W8AC, 7P
« on: April 05, 2022, 0030 UTC »
Heard yesterday (April 3rd, ~ 1400 PDT) in Northern California

PCO - Audible sometimes good readability between fades

7P - Well above the noise for long periods.

W8AC - several WSPR decodes during late afternoon local time. A new logging at this location.

Utility / 1680 kHz UK and Europe. Stanag or other mode?
« on: March 30, 2022, 2218 UTC »
Hi Folks,

While visiting the UK, I was doing a little listening in the Marine MF band above 1600 kHz. Superimposed on the Floro (Norway) station USB weather reports on 1680 kHz was a systematic buzzing, audible after dark only.

Checking Sigidwiki for comparson of the audio suggested that this may be a Stanag variant of some kind similar in sound to Stanag 4285 , but I can't swear it is identical. Almost any SDR based in the UK or Northern Europe seems to pick it up.   https://www.sigidwiki.com/wiki/STANAG_4285

Can anyone shed more light here? Extensive searching has turned up nothing at all.



22 Meter Band HiFER Beacons / High power signals in 22m 6 March 22
« on: March 08, 2022, 1855 UTC »
Hi Folks,

I was wondering if any other 22m listeners heard the strong signal data transmissions on 6th March (Afternoon hours, PST)? This appeared to start with a single tone, ahead of a fast rate transmission with wide bandwidth (500 Hz or more) roughly centered around 13,555.40 kHz. It continued for many minutes, possibly longer, as I did not monitor the receiver continuously, although I should have screenshots that can be reviewed to help time-stamp the entire event.

The signal had the character of a powerful transmission at considerable distance, judging by the slight fading and other characteristics suggesting skywave propagation.


22 Meter Band HiFER Beacons / August 15th WSPR
« on: August 17, 2021, 1758 UTC »
Here in Northern California, WSPR signals from EDJ, SIW and SZX were recorded during 22m monitoring, daylight hours, 15th August. Other Beacons noted were 7P, EH and NC from traces recorded in Spectrum Lab. EH is occasionally audible here, as is 7P.

Receiving with random wire dipole and Icom IC R-72

The RF Workbench / Inexpensive frequency counter Modules
« on: August 25, 2020, 2358 UTC »
Hi Folks,

I am sure  a few of you have seen the inexpensive frequency counters available on-line. I bought a couple out of curiosity, featuring an 8 digit LED display. They are quite useful, e.g. for adding to an old signal generator, but beware using them for more precise work.

A case in point - I acquired a Yaesu FRG8800 a couple of years ago, and decided it could benefit from a tune-up. I used one of the counter modules in the course of this, and alignment generally seemed to go OK. Except there was a constant offset either USB and LSB modes, around 300 Hz. That seemed odd, but since the radio was in spec according to book values, and the small error could be corrected with the "Fine" tuning control, I didn't think much of it, and put it down to drift during warm up etc. Recently, I had another reason to bring the set back to the bench, and since I now have a better frequency counter, decided to look at alignment again. Lo and behold, the local oscillator settings for both USB and LSB final detection were incorrect by practically the same amount, and consistent with the error in tuning the radio. Using the new counter, and following the alignment procedure again has put the radio spot on frequency. Lesson learned!



22 Meter Band HiFER Beacons / Beacon PVC running QRSS3
« on: April 08, 2020, 0341 UTC »
As the thread title says, I have adjusted beacon PVC to QRSS3 mode, sending the ident PVC. Frequency is unchanged at 13,555.55~



22 Meter Band HiFER Beacons / Beacon PVC temporarily off
« on: December 13, 2019, 0054 UTC »
Hi Folks,

Beacon PVC, 13,555.55~ is temporarily off air until storm damage to the antenna can be repaired. I'll update accordingly.



22 Meter Band HiFER Beacons / PVC reaches Kansas!
« on: April 09, 2019, 1641 UTC »
Hi folks,

I received word that my beacon, PVC (13,555.5~~) was picked up by a LWCA member on 2nd and again on 3rd April, late in the afternoon in Kansas. That is a record distance of approximately 1400 miles for this station :)

Apparently there has been an indistinct trace visible several times at the same frequency, but this was the first occasion on which a positive ID could be made. You can read more at the LWCA website  https://www.lwca.net/mb/index.html, and if you are a member, there is a screenshot from Argo and a recording available.

I was just about to abandon the sloping dipole in favour of constructing a new 1/4 wave vertical antenna, but think I'll leave things as they are for a while longer.



22 Meter Band HiFER Beacons / AZ heard Sunday 8:20 am (PST)
« on: February 04, 2019, 2156 UTC »
I had an unexpected early session at the listening desk yesterday(Sunday Feb 3rd). AZ (13,554.0~~ kHz) was making it to California quite audibly during the half hour after 8 am (PST). Inaudible, but detected via spectrogram, were NC and E H, operating in slow FSK mode as usual. One other feint trace may have been USC, but could not be read clearly.

Beacon PVC was temporarily disabled by a couple of power outages, but is currently in operation.


22 Meter Band HiFER Beacons / PVC off temporarily
« on: November 29, 2018, 2121 UTC »
Hi Folks,

Had to remove connections to PVC's antenna today when thunder and lightning jolted me awake!

I'll restore operation ASAP.

The storms also dragged my long-wire aerial down again. That is the second time this week...



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