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Discussion Starter #1
Not that I'm much of an expert now but back in my totally naive days around the time of the US DTV transition in summer 2009, I bought an antenna labeled as a GE Universal Outdoor Antenna at Home Depot. The model number for it is GE TV24767. It has 36 elements in total with a rear boom of 279 meters. The antenna is distributed by Jasco Products of Oklahoma City.

On other forums, when I mentioned this antenna, the comments were largely tepid with some suggesting that I get a name-brand antenna (typically Winegard) since this unit was likely a piece of junk. So, I put the antenna away in spite of it performing well for me and it was largely forgotten until recently. In short, I dismissed it as not a serious antenna since most of the experts pooh-poohed it.

A few days ago when I met up with tripelo, I took the GE TV24767 along for him to see. He concluded that in spite of the GE branding, it was actually an AntennaCraft, a fairly close match to their Colorstar C480 mode (with a few less elements).

Now that I have a means to get figures on the antenna with the Sencore and the HD Homerun device, I must say this is a very credible antenna. I recently connected it and was surprised at just how well it performed. If there's enough interest, I'll post more information about it. Several pictures were made by tripelo since extensive web searches show very little information about it and we wanted to chronicle this antenna for historical interest.

Before posting this tonight, I stopped by the local Home Depot and it was still in stock along with its smaller 25-element little brother, the GE TV24765. I can't find it listed on their web site, though.
 

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He concluded that in spite of the GE branding, it was actually an AntennaCraft, a fairly close match to their Colorstar C480 mode (with a few less elements).
Yeah, most likely. AntennaCraft made specialized models for Radio Shack like the C480 with mods in the early 90's. It wouldnt surprise me if GE picked up left over stock, they do that on other things too.
 

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Rebranding: the Name game

Back in the late '80s and into the '90s as GE was devolving it's massive product lines and selling some of them off there had not yet been a significant influx of cheap Chinese antennas into the North American market, so this sort of Antennacraft rebranding was widespread. Chances are the exact same antenna was also sold under one or all of the Gemini, Philips, Magnavox, RCA, and chain store brand names like the ones 300ohm mentioned. Gemini, for instance, at one point had a stable of outdoor antennas sourced from Blake (UK), Wade-Delhi (Canada), Winegard, and Antennacraft, and maybe even others, depending on which one you bought.


As for this GE TV24767 the specifications might probably have been lost as it disappeared from the market. Home Depot clearly had some old stock.
 

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Discussion Starter #4 (Edited)
GE TV24767 vs. Winegard HD-7696P

As for this GE TV24767 the specifications might probably have been lost as it disappeared from the market. Home Depot clearly had some old stock.
For the purpose of documenting this antenna before any trace of it vanishes from history, I took a few moments to rig it up in the attic this morning (just two boom sections, the rearmost low-VHF reflector is just too large for the small space) and then compare it to the other VHF/UHF combo I have on hand, the Winegard HD-7696P with a new balun cartridge that they were kind enough to send at no change since the "as shipped" unit had a really bad drop off above channel 36.

I use the Sencore SLM-1456 to get the readings in scan mode with each antenna connected directly to the instrument using a 1.83m run of Monoprice RG-6 QS. After running these scans, I've moved both antennas out of the way to restore the AD C5 and Winegard HD-9032 for some additional tests requested by 300ohm on the reflector of the latter.

Here's the channel lineup at my place:

http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id=597935f05e796a

GE TV24767 (actually an AntennaCraft build, RS 15-1230 balun)
Code:
SOURCE      :  DfwDig
LOGFILE     :  1
TIMESTAMP   :  2011-03-10 @09:43
TEMPERATURE :  85F

+----+--------+-----+-----+-----+------+----+
! CH.!  TYPE  !LEVEL! A/V ! MER ! BER  !DIG.!
!    !        !POWER!     ! CCN !      !QLTY!
!    !        !dBmV ! dB  ! dB  !      !    !
+----+--------+-----+-----+-----+------+----+
!  8 !8VSB    !- 5.2!     !>36.0! <10-9!PASS!
!  9 !8VSB    !-11.6!     !>36.0! <10-9!PASS!
! 11 !8VSB    !- 4.2!     !>36.0! <10-9!PASS!
! 14 !8VSB    !-  .6!     ! 33.6!9x10-9!PASS!
! 18 !8VSB    !-20.6!     ! 32.1! <10-9!PASS!
! 19 !8VSB    !  2.3!     !>36.0! <10-9!PASS!
! 20 !8VSB    !-20.8!     ! 35.6! <10-9!PASS!
! 23 !8VSB    !  2.1!     !>36.0! <10-9!PASS!
! 25 !8VSB    !-22.4!     !>36.0! <10-9!PASS!
! 27 !8VSB    !-25.8!     ! 33.9! <10-9!PASS!
! 29 !8VSB    !-  .5!     ! 35.4! <10-9!PASS!
! 30 !8VSB    !- 3.0!     !>36.0! <10-9!PASS!
! 31 !8VSB    !-25.4!     !>36.0!2x10-9!PASS!
! 32 !8VSB    !- 1.0!     !>36.0! <10-9!PASS!
! 34 !8VSB    !-21.9!     !>36.0! <10-9!PASS!
! 35 !8VSB    !- 5.8!     !>36.0! <10-9!PASS!
! 36 !8VSB    !- 1.5!     !>36.0! <10-9!PASS!
! 38 !8VSB    !-27.6!     ! 34.7!7x10-8!PASS!
! 39 !8VSB    !   .9!     ! 34.5! <10-9!PASS!
! 40 !8VSB    !-  .3!     ! 34.4! <10-9!PASS!
! 41 !8VSB    !- 1.2!     !>36.0! <10-9!PASS!
! 42 !8VSB    !- 2.9!     !>36.0! <10-9!PASS!
! 43 !8VSB    !- 7.1!     !>36.0! <10-9!PASS!
! 44 !8VSB    !-14.2!     !>36.0! <10-9!PASS!
! 45 !8VSB    !- 6.2!     !>36.0! <10-9!PASS!
! 46 !8VSB    !-10.3!     !>36.0! <10-9!PASS!
! 48 !8VSB    !- 5.3!     !>36.0! <10-9!PASS!
! 50 !8VSB    !-28.5!     ! 35.7! <10-9!PASS!
! 51 !8VSB    !-26.5!     ! 33.5! <10-9!PASS!
+----+--------+-----+-----+-----+------+----+
Winegard HD-7696P (new balun cartridge)
Code:
SOURCE      :  DfwDig
LOGFILE     :  2
TIMESTAMP   :  2011-03-10 @10:18
TEMPERATURE :  85F

+----+--------+-----+-----+-----+------+----+
! CH.!  TYPE  !LEVEL! A/V ! MER ! BER  !DIG.!
!    !        !POWER!     ! CCN !      !QLTY!
!    !        !dBmV ! dB  ! dB  !      !    !
+----+--------+-----+-----+-----+------+----+
!  8 !8VSB    !-11.9!     ! 32.1! <10-9!PASS!
!  9 !8VSB    !-20.4!     ! 29.7!5x10-6!PASS!
! 11 !8VSB    !- 8.0!     ! 31.9! <10-9!PASS!
! 14 !8VSB    !   .2!     ! 30.5!2x10-8!PASS!
! 18 !8VSB    !-20.2!     ! 32.4! <10-9!PASS!
! 19 !8VSB    !  2.3!     !>36.0! <10-9!PASS!
! 20 !8VSB    !-20.3!     !>36.0! <10-9!PASS!
! 23 !8VSB    !  2.4!     !>36.0! <10-9!PASS!
! 25 !8VSB    !-22.3!     !>36.0! <10-9!PASS!
! 27 !8VSB    !-25.5!     ! 34.8! <10-9!PASS!
! 29 !8VSB    !   .5!     ! 35.9! <10-9!PASS!
! 30 !8VSB    !- 2.2!     !>36.0! <10-9!PASS!
! 31 !8VSB    !-27.4!     !>36.0!3x10-8!PASS!
! 32 !8VSB    !- 4.8!     !>36.0! <10-9!PASS!
! 34 !8VSB    !-25.1!     !>36.0! <10-9!PASS!
! 35 !8VSB    !- 5.8!     !>36.0! <10-9!PASS!
! 36 !8VSB    !- 1.0!     !>36.0! <10-9!PASS!
! 38 !8VSB    !-28.9!     !M.OUT! M.OUT!MOUT!
! 39 !8VSB    !  1.5!     ! 33.4! <10-9!PASS!
! 40 !8VSB    !   .1!     ! 34.3! <10-9!PASS!
! 41 !8VSB    !-  .3!     !>36.0! <10-9!PASS!
! 42 !8VSB    !- 2.3!     !>36.0! <10-9!PASS!
! 43 !8VSB    !- 8.5!     !>36.0! <10-9!PASS!
! 44 !8VSB    !-14.6!     !>36.0! <10-9!PASS!
! 45 !8VSB    !- 6.7!     !>36.0! <10-9!PASS!
! 46 !8VSB    !-11.0!     !>36.0! <10-9!PASS!
! 48 !8VSB    !- 5.8!     !>36.0! <10-9!PASS!
! 50 !8VSB    !-30.5!     ! 35.0!1x10-9!PASS!
! 51 !8VSB    !-29.6!     ! 32.3!9x10-9!PASS!
+----+--------+-----+-----+-----+------+----+
 

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GE TV24767 VHF/UHF Antenna Photos

As mentioned in the first post in this thread, re_nelson's GE TV24767 was photographed. These photos were taken on the same day that re_nelson's HD-9032 was measured (03-08-2011).

Due to transportation difficulties (physical length), the reflector for the VHF portion of the antenna (the longest element) was not present at the location where the photos were taken.

So, a part of the antenna (the VHF reflector) is missing in the photos that follow:
A view from the front-corner:

A view from the front (UHF section):

A partial view of the log-periodic transmission line:
 

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In the third photo, the uhf-vhf phasing lines seems to be shorting out the lines connecting the two vhf driven dipoles. Do you think its supposed to be that way, or should the uhf-vhf phasing line be spread apart further ?

The last photo is an excellent shot of the way AntennaCraft makes their uhf directors. :p
 

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300ohm said:
In the third photo, the uhf-vhf phasing lines seems to be shorting out the lines connecting the two vhf driven dipoles.
Due to image resolution, It may be unclear in the 3rd photo. Not having the antenna present to inspect, but other photos are available. Possibly you are referring to this portion of the stub and feed line arrangement:





300ohm said:
Do you think its supposed to be that way, or should the uhf-vhf phasing line be spread apart further ?
It appears that the connections are intentional. They are shorted at the lower insulator in the above photo. The blue plastic has a ridge running vertically to force the feed line stub into the terminals.

Perhaps you were referring to the upper ends of the extended wire stubs, appearing to be shorted to the flange region of VHF elements. There is a bit of spacing there, not a large amount of spacing to be sure, but when viewed from the side there is a bit of more clearance than is evident in these photos.

Since the balun connects to terminals at the UHF driven element, it appears that the feed line that continues in the downward direction (in the above image) connects the VHF portion to the balun terminals





The extended open-end portions (near the top of each photo) seem to be one of the isolation stubs, to help keep the UHF signals from feeding into the VHF portion antenna.

300ohm said:
....AntennaCraft makes their uhf directors. :p
Looks like tubing that has been spread apart, or not completely rolled. Seems like a good design to increase bandwidth of directors.
 
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