Vintage Channel Master Biggest Broadband Antenna Almost Unchanged From The 1990s

Description

I am fully vaccinated and will wear a mask if you request it.
If you have a van-type vehicle (or a station wagon) you could take it assembled (but with the VHF elements folded) by tying it to the vehicle’s roof. Otherwise we might be able to disassemble it to about half its length.
The first photo is of the actual described antenna that I have for sale. The other photos are for informational/educational purposes.
This is not
t
he Current Model Channel Master CM-3671 but it is almost the same (see the photos).
Channel Master‘s list price for this, their largest model, is 0 with free shipping and they only sell direct.
Full disclosure:
This antenna has both short and long VHF elements so it is VHF broadband, meaning it is designed for RF VHF channels 2 -13. The only low band station in the San Francisco Bay area is the Santa Rosa PBS KRCB 22 that is transmitting on RF VHF channel 5 from Sutro Tower in San Francisco.
For I will test this and other antennas at your location and if it doesn’t work I will issue you a refund The reason I only charge is because you have to provide the transportation.
You may observe me testing it in my driveway.
This model is typical of the longest (14 feet - 4.8 inches) monster combination antennas with the small UHF elements in the front and the long VHF elements in the rear.
The longest VHF elements receive RF channels 2 through 6. (For example, PBS KRCB 22-1 from San Francisco is transmitting on RF channel 5.)
A modern alternative solution to the extraordinary length of high gain combination antennas is Denny’s Antenna Service “Stacker” that also makes attic installations possible. It is only sold direct and is 0 with free shipping. Someone flagged this listing so my link to his website had to be removed because he is not an eBay seller but it’s easy to find “Denny’s Antenna Service” on the Internet.
This 1978 era largest/longest “Gold Medal” series combination broadband (low & high band VHF) directional UHF/VHF TV antenna is almost the same as the current model that has added three horizontal rods attached to the UHF section. Today’s list price is ~0.
The antenna is in good condition for living outside for about 22 years.
The balun is included.
There is one lock washer missing.
The mast and cable are not included.
I tested this antenna at one spot at my difficult reception location and it received all but one of the big six national network channels and that station (FOX 40-1 on RF UHF channel 22) is very problematic with most antennas and my personal separate UHF antenna has to be in one specific place on my roof to receive it because it is the only station that is weak. All of the other stations, three UHF and two VHF, indicated 100 on my test tuner for both strength and quality and they are listed as moderate signals by the FCC at my address. All the stations are about 35 to 37 miles from me and are not line-of-sight.
I subsequently did a comparison test with the Winegard HD7698P, their biggest combination antenna that includes high band VHF and the very old Channel Master Gold Medal antenna (equivalent to the current Ultra-Hi Crossfire 100) performed a little better.
From Channel Master’s website for the current model:
The Channel Master CM-3671 Ultra-Hi Crossfire was designed to be the best performing long-range outdoor TV antenna on the market. It offers reliable reception and superior gain across the entire bandwidth including Low VHF, High VHF, UHF and FM signals. With a range of 100+ miles, the Ultra-Hi Crossfire Antenna is perfectly optimized for use in rural and weak signal areas. Thanks to a rugged double boom design and high-strength bracing, the antenna's elements are kept in position, sagging and structural distortion is prevented even under heavy ice loads and high winds.
Note: The “100+ miles” range is misleading because even in flat terrain the antenna would have to be on a very high tower to get line of sight over the curvature of the earth to a TV station transmitter.
Electrical Specifications
Bandwith 54 to 216 and 470 to 700 MHz
Low VHF Gain 5.6 dB
High VHF Gain 10.9 dB
UHF Gain 10.0 dB
Return Loss N/A
Impedance 300 Ohm (75 Ohm balun included)
Mechanical Specifications
Boom Length 173 in.
Number of Elements 61
Max Element Width 110 in.
Mounting Clamp U-bolt up to 1.5 in.
Turning Radius 95.75 in.
Output Connector F-type
Size (product) 173 x 110 x 34.5 in.
Size (packaging) 69 x 12 x 12 in.
Weight (product) 15 lb
Weight (packaging) 16.5 lb
I am a few blocks off of 680 on the border of Pleasant Hill and Concord, California.