Patrick wrote:
The gremlins are at it again. Don't know why but for some reason the list bounced Gary's message. Now let's see if it bounces my attempt to post it for him...
Patrick, Back at you. Below is an edited and updated copy of my offline reply to Glen. The "Meteor Mania" video that Glen mentioned can viewed at - http://www.bbc.co.uk/science/space/skyatnight/proginfo.shtml Look for the Nov. 2007 program. ====== Glen, thanks. I am waiting for confirmation on the UtahAmateurRadioClub yahoo group if my second recording actually contains meteor pings. Glen wrote:
There are a number of freqs that can be used in the lower part of the FM band.
The question of FM audio bands came up on the UtahAmateurRadioClub list, but specific frequencies for unblocked over-the-horizon stations were not provided. Do you have any recommendations for specific FM band station frequencies that are over-the-horizon but do not overlap local transmitter? In my 12-14-2009 test this morning, I captured another three hours using a different setup. I recorded on the LSB (lower side band) of Channel 3 at 61.240mhz in AM mode. The following is a clip file of some of the pops ("puffs" might be a better description) that I captured. 2009-12-14 Test Chn 3 LSB 61.240 Full url http://fisherka.csolutionshosting.net/astronote/observed/Meteors/20091214_end720\ MST_61_240_Clipped4.wav Tiny url http://tinyurl.com/ye5qz8a Please take moment to listen to this collection of clips recording (13 seconds long). Do these clips sound like meteor reflections? It appears that to really listen to these, I will need to upgrade my receiver. I have an older, inexpensive receiver that only supports receiving in AM or FM modes. Apparently, there is a newer receiving modes called SSB and CW. Those receivers tease the nice Doppler "ping" signal that you hear on sample meteor signal recordings on the internet and in the _Meteor Mania_ program. But hopefully for now, the older set I have should be able to give a non-Doppler "ping" or "puff" detection sound. Thanks for referring me to the Meteor Mania _Sky at Night_ braodcast. From the ham radio operator setup shown in the broadcast, I can see that I was overthinking the antenna setup. Although I am using a simple antenna whip for testing, you really need a log Yagi style antenna. (I have the parts for a portable diamond loop antenna in my closet - a winter build project.) In the _Meteor Mania_ broadcast, the operators were getting useable result with a portable 6m Yagi mounted close to the ground vertically. I was stumped thinking that you needed to mount the Yagi antenna up high, something I cannot do at my apartment. But it looks like you can mount one vertically at the ground. Clear Skies - Kurt