Newegg has a phonetone 8db yagi that comes with 33 feet of low loss feedline attached for $13.99
I found the Phonetone 8 dB yagi antenna that you referenced above at Newegg but I have a concern about the "33 feet of low loss feedline attached." Here's the link to the antenna at Newegg for anyone who might be interested ($13.99 with FREE shipping included):
https://www.newegg.com/Product/Product.aspx?Item=9SIA3XS3RD1180
The coax attached to the antenna looks to me to be very small diameter in the various pictures of the antenna. I could find no mention of the actual coax type in the description at Newegg. I then went directly to the Phonetone website and the description of the same antenna there (
Directional Yagi Antenna | Phonetone) also did not mention the specific coax included with the antenna.
I did some further research on the Phonetone website and I "believe" the included coax is actually RG58. The reason I say that is that they sell coax separately on the Phonetone website and specify that it is RG58 with N connectors on both ends. They list a coax assembly on their website which is 10 meters/32.8 feet long (
Black 10M N Male to N Female 50-3 RG58 Low Loss Coaxial Cable to Connect Signal Booster). They make the statement that their RG58 coax "Provides a lowest loss possible when transmitting a signal" which is simply not true at 800-900 MHz.
Looking at a coax attenuation chart (
Coax Attenuation Chart) RG58 coax has a 20.1 dB loss at 900 MHz per 100 feet. Doing the math the 33 feet of included RG58 coax (if that is actually the coax that is included with the antenna) would result in a coax loss of 6.7 dB at 900 MHz. The antenna is listed as having an 8 dB gain so your net gain would only be 1.3 dB when you factor in the attached coax loss at 900 MHz.
If you wanted to use this economically-priced antenna there are a couple of workarounds for the coax. You could cut the included coax to a 12" pigtail at the antenna and then connect it with appropriate connectors to a lower-loss coax like LMR-400 or RG6 for the rest of your coax run. You may also be able to connect directly to the antenna with a lower-loss coax and totally eliminate the RG58 from the equation. It's hard to tell from the pictures (and of course they don't specify in the very limited antenna description) but the connector at the antenna MAY be an SMA connector or something similar in size. Maybe someone who actually owns one of these antennas can confirm the exact connector that is present on the antenna itself.
