We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Ed H

Pages: [1] 2 3 ... 6
1
22 Meter Band 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.


Cheers

Ed

2
22 Meter Band 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.

/Ed

3
22 Meter Band Beacons / Re: Why "anonymous" beacons on 22 m?
« on: January 11, 2019, 2214 UTC »
That's a good point, Prariedog, I don't think anyone would know to put up a 22 m beacon without having encountered HFU or LWCA etc. - After all, why would one run a beacon without being able to know if it was received elsewhere?

On the other hand, some value privacy to a high degree.

4
22 Meter Band Beacons / Re: PVC off temporarily
« on: November 30, 2018, 1844 UTC »
PVC back on air!

5
22 Meter Band 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...

Cheers

Ed

6
Last week I brought the Lowe HF150 in to the office. It has a sensitive Hi Z active antenna input. Alongside a few carriers within ISM limits, was a massive broad-band hash from all the other equipment and lighting circuits. In fact this was plenty audible with the whip antenna switched to the straight 50 ohm input. I didn't get chance to monitor from outside the building.

One last thing - There was a nice clear dasher signal.. traced to the NFC/RFID transponder of my smart-phone!

7
That is an interesting supposition Exo.

Since I work at a manufacturing facility that uses RF generators, I could ask. It is also a perfect excuse to bring the portable listening setup to work :)

8
22 Meter Band Beacons / Re: 13 MHz Western USA Beacons
« on: November 09, 2018, 0243 UTC »
Nice report Exo. Over the weekend, I was able to copy AZ, and also a number of the beacons clustered around 13,555.xxx. The slower mode signals visualise nicely using Spectrum Lab in QRSS3 mode. I have a screenshot, but need to work out how to include it in a post...

Ed
 

9
22 Meter Band Beacons / Re: GNK 13564 1845 UTC 7 Oct 2018
« on: November 06, 2018, 2122 UTC »
Interesting, but they can't all be over power. GNK comes in fairly regularly - as it did for a while on the 4th Nov. But also signals from CT and NC, with similar or greater strength!

I could only wish for such reach for PVC!

10
That noise region certainly checks out here in Northern Calilfornia. I should bring a receiver to work - we have lots of tools with RF generators, I'll bet the ISM is a riot here in San Jose!

11
22 Meter Band Beacons / Re: HiFER "AN" 13563.0
« on: October 22, 2018, 2358 UTC »
According to a recent message on the LWCA message board, it is located in Somerton, AZ. A Black Cat Systems Kit operating into a Hamstick vertical mounted on a metal roof building. The system is solar powered.

I must listen out, the Arizona beacons are often audible copy here in Northern California.

Ed

12
22 Meter Band Beacons / Re: Your best clear spots in the 22 m ISM Band?
« on: September 16, 2018, 0520 UTC »
Thanks for the report. However, this is not the present frequency for PVC. Keep trying :)

13
22 Meter Band Beacons / Re: Your best clear spots in the 22 m ISM Band?
« on: September 09, 2018, 2221 UTC »
You are welcome to discuss the frequency pulling question on this thread. It is all connected :)

I moved PVC to a new temporary frequency using the generator. It is a simple switch press on the transmitter to go back to the crystal at 13,558.4 kHz

Prizes for correct answers to "What frequency is PVC on today"

Cheers

Ed

14
22 Meter Band Beacons / Re: Your best clear spots in the 22 m ISM Band?
« on: September 06, 2018, 1714 UTC »
Thanks again for the feedback everyone.

Exo - your pic did not appear the first time I came back to the thread, but that is a great illustration, and very similar to what I experience along with others.

I also posted this at the LWCA message board, and I'll share what comes back.

Cheers,

Ed

15
22 Meter Band Beacons / Re: Your best clear spots in the 22 m ISM Band?
« on: September 06, 2018, 0040 UTC »
I would expect the band centre to have the most issues... Equipment using this frequency is likely crystal controlled, and 13.56 crystals are likely to be relatively well clustered around centre.

I'm considering moving my beacon frequency, but need to implement a different frequency source than the crystal which has limited pull range. It's worth figuring out what the better spots will be in the band.

Using web SDR is a great idea to do some surveying myself. Not so many of the ones I have found provide full HF coverage, but a few allow reception of 22 m.

Thanks

Ed

Pages: [1] 2 3 ... 6